Mercurial > hg > truffle
changeset 6497:64b7dd2075c0
renamed projects com.oracle.max.asm* to com.oracle.graal.asm*
| author | Doug Simon <doug.simon@oracle.com> |
|---|---|
| date | Wed, 03 Oct 2012 17:42:12 +0200 |
| parents | 16d1411409b4 |
| children | 6bc8aa568cb9 |
| files | graal/com.oracle.graal.asm.amd64/src/com/oracle/max/asm/amd64/AMD64.java graal/com.oracle.graal.asm.amd64/src/com/oracle/max/asm/amd64/AMD64AsmOptions.java graal/com.oracle.graal.asm.amd64/src/com/oracle/max/asm/amd64/AMD64Assembler.java graal/com.oracle.graal.asm.amd64/src/com/oracle/max/asm/amd64/AMD64MacroAssembler.java graal/com.oracle.graal.asm.amd64/src/com/oracle/max/asm/amd64/X86InstructionDecoder.java graal/com.oracle.graal.asm/overview.html graal/com.oracle.graal.asm/src/com/oracle/max/asm/AbstractAssembler.java graal/com.oracle.graal.asm/src/com/oracle/max/asm/AsmOptions.java graal/com.oracle.graal.asm/src/com/oracle/max/asm/Buffer.java graal/com.oracle.graal.asm/src/com/oracle/max/asm/Label.java graal/com.oracle.graal.asm/src/com/oracle/max/asm/NumUtil.java graal/com.oracle.max.asm.amd64/src/com/oracle/max/asm/amd64/AMD64.java graal/com.oracle.max.asm.amd64/src/com/oracle/max/asm/amd64/AMD64AsmOptions.java graal/com.oracle.max.asm.amd64/src/com/oracle/max/asm/amd64/AMD64Assembler.java graal/com.oracle.max.asm.amd64/src/com/oracle/max/asm/amd64/AMD64MacroAssembler.java graal/com.oracle.max.asm.amd64/src/com/oracle/max/asm/amd64/X86InstructionDecoder.java graal/com.oracle.max.asm/overview.html graal/com.oracle.max.asm/src/com/oracle/max/asm/AbstractAssembler.java graal/com.oracle.max.asm/src/com/oracle/max/asm/AsmOptions.java graal/com.oracle.max.asm/src/com/oracle/max/asm/Buffer.java graal/com.oracle.max.asm/src/com/oracle/max/asm/Label.java graal/com.oracle.max.asm/src/com/oracle/max/asm/NumUtil.java mx/projects src/share/vm/runtime/arguments.cpp |
| diffstat | 24 files changed, 4682 insertions(+), 4682 deletions(-) [+] |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/graal/com.oracle.graal.asm.amd64/src/com/oracle/max/asm/amd64/AMD64.java Wed Oct 03 17:42:12 2012 +0200 @@ -0,0 +1,128 @@ +/* + * Copyright (c) 2009, 2011, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + */ +package com.oracle.max.asm.amd64; + +import static com.oracle.graal.api.code.Register.RegisterFlag.*; +import static com.oracle.graal.api.meta.Kind.*; +import static com.oracle.max.criutils.MemoryBarriers.*; + +import com.oracle.graal.api.code.*; +import com.oracle.graal.api.code.Register.*; + +/** + * Represents the AMD64 architecture. + */ +public class AMD64 extends Architecture { + + // General purpose CPU registers + public static final Register rax = new Register(0, 0, 8, "rax", CPU, RegisterFlag.Byte); + public static final Register rcx = new Register(1, 1, 8, "rcx", CPU, RegisterFlag.Byte); + public static final Register rdx = new Register(2, 2, 8, "rdx", CPU, RegisterFlag.Byte); + public static final Register rbx = new Register(3, 3, 8, "rbx", CPU, RegisterFlag.Byte); + public static final Register rsp = new Register(4, 4, 8, "rsp", CPU, RegisterFlag.Byte); + public static final Register rbp = new Register(5, 5, 8, "rbp", CPU, RegisterFlag.Byte); + public static final Register rsi = new Register(6, 6, 8, "rsi", CPU, RegisterFlag.Byte); + public static final Register rdi = new Register(7, 7, 8, "rdi", CPU, RegisterFlag.Byte); + + public static final Register r8 = new Register(8, 8, 8, "r8", CPU, RegisterFlag.Byte); + public static final Register r9 = new Register(9, 9, 8, "r9", CPU, RegisterFlag.Byte); + public static final Register r10 = new Register(10, 10, 8, "r10", CPU, RegisterFlag.Byte); + public static final Register r11 = new Register(11, 11, 8, "r11", CPU, RegisterFlag.Byte); + public static final Register r12 = new Register(12, 12, 8, "r12", CPU, RegisterFlag.Byte); + public static final Register r13 = new Register(13, 13, 8, "r13", CPU, RegisterFlag.Byte); + public static final Register r14 = new Register(14, 14, 8, "r14", CPU, RegisterFlag.Byte); + public static final Register r15 = new Register(15, 15, 8, "r15", CPU, RegisterFlag.Byte); + + public static final Register[] cpuRegisters = { + rax, rcx, rdx, rbx, rsp, rbp, rsi, rdi, + r8, r9, r10, r11, r12, r13, r14, r15 + }; + + // XMM registers + public static final Register xmm0 = new Register(16, 0, 8, "xmm0", FPU); + public static final Register xmm1 = new Register(17, 1, 8, "xmm1", FPU); + public static final Register xmm2 = new Register(18, 2, 8, "xmm2", FPU); + public static final Register xmm3 = new Register(19, 3, 8, "xmm3", FPU); + public static final Register xmm4 = new Register(20, 4, 8, "xmm4", FPU); + public static final Register xmm5 = new Register(21, 5, 8, "xmm5", FPU); + public static final Register xmm6 = new Register(22, 6, 8, "xmm6", FPU); + public static final Register xmm7 = new Register(23, 7, 8, "xmm7", FPU); + + public static final Register xmm8 = new Register(24, 8, 8, "xmm8", FPU); + public static final Register xmm9 = new Register(25, 9, 8, "xmm9", FPU); + public static final Register xmm10 = new Register(26, 10, 8, "xmm10", FPU); + public static final Register xmm11 = new Register(27, 11, 8, "xmm11", FPU); + public static final Register xmm12 = new Register(28, 12, 8, "xmm12", FPU); + public static final Register xmm13 = new Register(29, 13, 8, "xmm13", FPU); + public static final Register xmm14 = new Register(30, 14, 8, "xmm14", FPU); + public static final Register xmm15 = new Register(31, 15, 8, "xmm15", FPU); + + public static final Register[] xmmRegisters = { + xmm0, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7, + xmm8, xmm9, xmm10, xmm11, xmm12, xmm13, xmm14, xmm15 + }; + + public static final Register[] cpuxmmRegisters = { + rax, rcx, rdx, rbx, rsp, rbp, rsi, rdi, + r8, r9, r10, r11, r12, r13, r14, r15, + xmm0, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7, + xmm8, xmm9, xmm10, xmm11, xmm12, xmm13, xmm14, xmm15 + }; + + /** + * Register used to construct an instruction-relative address. + */ + public static final Register rip = new Register(32, -1, 0, "rip"); + + public static final Register[] allRegisters = { + rax, rcx, rdx, rbx, rsp, rbp, rsi, rdi, + r8, r9, r10, r11, r12, r13, r14, r15, + xmm0, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7, + xmm8, xmm9, xmm10, xmm11, xmm12, xmm13, xmm14, xmm15, + rip + }; + + public static final RegisterValue RSP = rsp.asValue(Long); + + public AMD64() { + super("AMD64", + 8, + ByteOrder.LittleEndian, + allRegisters, + LOAD_STORE | STORE_STORE, + 1, + r15.encoding + 1, + 8); + } + + @Override + public boolean isX86() { + return true; + } + + @Override + public boolean twoOperandMode() { + return true; + } + +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/graal/com.oracle.graal.asm.amd64/src/com/oracle/max/asm/amd64/AMD64AsmOptions.java Wed Oct 03 17:42:12 2012 +0200 @@ -0,0 +1,32 @@ +/* + * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + */ +package com.oracle.max.asm.amd64; + +public class AMD64AsmOptions { + public static int Atomics = 0; + public static boolean UseNormalNop = true; + public static boolean UseAddressNop = true; + public static boolean UseIncDec = false; + public static boolean UseXmmLoadAndClearUpper = true; + public static boolean UseXmmRegToRegMoveAll = false; +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/graal/com.oracle.graal.asm.amd64/src/com/oracle/max/asm/amd64/AMD64Assembler.java Wed Oct 03 17:42:12 2012 +0200 @@ -0,0 +1,3034 @@ +/* + * Copyright (c) 2009, 2012, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + */ +package com.oracle.max.asm.amd64; + +import static com.oracle.graal.api.code.ValueUtil.*; +import static com.oracle.max.asm.NumUtil.*; +import static com.oracle.max.asm.amd64.AMD64.*; +import static com.oracle.max.asm.amd64.AMD64AsmOptions.*; +import static com.oracle.max.criutils.MemoryBarriers.*; + +import com.oracle.graal.api.code.*; +import com.oracle.graal.api.meta.*; +import com.oracle.max.asm.*; + +/** + * This class implements an assembler that can encode most X86 instructions. + */ +public class AMD64Assembler extends AbstractAssembler { + /** + * The kind for pointers and raw registers. Since we know we are 64 bit here, we can hardcode it. + */ + private static final Kind Word = Kind.Long; + + private static final int MinEncodingNeedsRex = 8; + + /** + * The x86 condition codes used for conditional jumps/moves. + */ + public enum ConditionFlag { + zero(0x4, "|zero|"), + notZero(0x5, "|nzero|"), + equal(0x4, "="), + notEqual(0x5, "!="), + less(0xc, "<"), + lessEqual(0xe, "<="), + greater(0xf, ">"), + greaterEqual(0xd, ">="), + below(0x2, "|<|"), + belowEqual(0x6, "|<=|"), + above(0x7, "|>|"), + aboveEqual(0x3, "|>=|"), + overflow(0x0, "|of|"), + noOverflow(0x1, "|nof|"), + carrySet(0x2, "|carry|"), + carryClear(0x3, "|ncarry|"), + negative(0x8, "|neg|"), + positive(0x9, "|pos|"), + parity(0xa, "|par|"), + noParity(0xb, "|npar|"); + + public final int value; + public final String operator; + + private ConditionFlag(int value, String operator) { + this.value = value; + this.operator = operator; + } + + public ConditionFlag negate() { + switch(this) { + case zero: return notZero; + case notZero: return zero; + case equal: return notEqual; + case notEqual: return equal; + case less: return greaterEqual; + case lessEqual: return greater; + case greater: return lessEqual; + case greaterEqual: return less; + case below: return aboveEqual; + case belowEqual: return above; + case above: return belowEqual; + case aboveEqual: return below; + case overflow: return noOverflow; + case noOverflow: return overflow; + case carrySet: return carryClear; + case carryClear: return carrySet; + case negative: return positive; + case positive: return negative; + case parity: return noParity; + case noParity: return parity; + } + throw new IllegalArgumentException(); + } + } + + /** + * Constants for X86 prefix bytes. + */ + private static class Prefix { + private static final int REX = 0x40; + private static final int REXB = 0x41; + private static final int REXX = 0x42; + private static final int REXXB = 0x43; + private static final int REXR = 0x44; + private static final int REXRB = 0x45; + private static final int REXRX = 0x46; + private static final int REXRXB = 0x47; + private static final int REXW = 0x48; + private static final int REXWB = 0x49; + private static final int REXWX = 0x4A; + private static final int REXWXB = 0x4B; + private static final int REXWR = 0x4C; + private static final int REXWRB = 0x4D; + private static final int REXWRX = 0x4E; + private static final int REXWRXB = 0x4F; + } + + /** + * The register to which {@link Register#Frame} and {@link Register#CallerFrame} are bound. + */ + public final Register frameRegister; + + /** + * Constructs an assembler for the AMD64 architecture. + * + * @param registerConfig the register configuration used to bind {@link Register#Frame} and + * {@link Register#CallerFrame} to physical registers. This value can be null if this assembler + * instance will not be used to assemble instructions using these logical registers. + */ + public AMD64Assembler(TargetDescription target, RegisterConfig registerConfig) { + super(target); + this.frameRegister = registerConfig == null ? null : registerConfig.getFrameRegister(); + } + + private static int encode(Register r) { + assert r.encoding < 16 && r.encoding >= 0 : "encoding out of range: " + r.encoding; + return r.encoding & 0x7; + } + + private void emitArithB(int op1, int op2, Register dst, int imm8) { + assert dst.isByte() : "must have byte register"; + assert isUByte(op1) && isUByte(op2) : "wrong opcode"; + assert isUByte(imm8) : "not a byte"; + assert (op1 & 0x01) == 0 : "should be 8bit operation"; + emitByte(op1); + emitByte(op2 | encode(dst)); + emitByte(imm8); + } + + private void emitArith(int op1, int op2, Register dst, int imm32) { + assert isUByte(op1) && isUByte(op2) : "wrong opcode"; + assert (op1 & 0x01) == 1 : "should be 32bit operation"; + assert (op1 & 0x02) == 0 : "sign-extension bit should not be set"; + if (isByte(imm32)) { + emitByte(op1 | 0x02); // set sign bit + emitByte(op2 | encode(dst)); + emitByte(imm32 & 0xFF); + } else { + emitByte(op1); + emitByte(op2 | encode(dst)); + emitInt(imm32); + } + } + + // immediate-to-memory forms + private void emitArithOperand(int op1, Register rm, Address adr, int imm32) { + assert (op1 & 0x01) == 1 : "should be 32bit operation"; + assert (op1 & 0x02) == 0 : "sign-extension bit should not be set"; + if (isByte(imm32)) { + emitByte(op1 | 0x02); // set sign bit + emitOperandHelper(rm, adr); + emitByte(imm32 & 0xFF); + } else { + emitByte(op1); + emitOperandHelper(rm, adr); + emitInt(imm32); + } + } + + private void emitArith(int op1, int op2, Register dst, Register src) { + assert isUByte(op1) && isUByte(op2) : "wrong opcode"; + emitByte(op1); + emitByte(op2 | encode(dst) << 3 | encode(src)); + } + + private void emitOperandHelper(Register reg, Address addr) { + Register base = isLegal(addr.getBase()) ? asRegister(addr.getBase()) : Register.None; + Register index = isLegal(addr.getIndex()) ? asRegister(addr.getIndex()) : Register.None; + + Address.Scale scale = addr.getScale(); + int disp = addr.getDisplacement(); + + if (base == Register.Frame) { + assert frameRegister != null : "cannot use register " + Register.Frame + " in assembler with null register configuration"; + base = frameRegister; +// } else if (base == Register.CallerFrame) { +// assert frameRegister != null : "cannot use register " + Register.Frame + " in assembler with null register configuration"; +// base = frameRegister; +// disp += targetMethod.frameSize() + 8; + } + + // Encode the registers as needed in the fields they are used in + + assert reg != Register.None; + int regenc = encode(reg) << 3; + + if (base == AMD64.rip) { + // [00 000 101] disp32 + emitByte(0x05 | regenc); + emitInt(disp); + } else if (addr == Address.Placeholder) { + // [00 000 101] disp32 + emitByte(0x05 | regenc); + emitInt(0); + + } else if (base.isValid()) { + int baseenc = base.isValid() ? encode(base) : 0; + if (index.isValid()) { + int indexenc = encode(index) << 3; + // [base + indexscale + disp] + if (disp == 0 && base != rbp && (base != r13)) { + // [base + indexscale] + // [00 reg 100][ss index base] + assert index != rsp : "illegal addressing mode"; + emitByte(0x04 | regenc); + emitByte(scale.log2 << 6 | indexenc | baseenc); + } else if (isByte(disp)) { + // [base + indexscale + imm8] + // [01 reg 100][ss index base] imm8 + assert index != rsp : "illegal addressing mode"; + emitByte(0x44 | regenc); + emitByte(scale.log2 << 6 | indexenc | baseenc); + emitByte(disp & 0xFF); + } else { + // [base + indexscale + disp32] + // [10 reg 100][ss index base] disp32 + assert index != rsp : "illegal addressing mode"; + emitByte(0x84 | regenc); + emitByte(scale.log2 << 6 | indexenc | baseenc); + emitInt(disp); + } + } else if (base == rsp || (base == r12)) { + // [rsp + disp] + if (disp == 0) { + // [rsp] + // [00 reg 100][00 100 100] + emitByte(0x04 | regenc); + emitByte(0x24); + } else if (isByte(disp)) { + // [rsp + imm8] + // [01 reg 100][00 100 100] disp8 + emitByte(0x44 | regenc); + emitByte(0x24); + emitByte(disp & 0xFF); + } else { + // [rsp + imm32] + // [10 reg 100][00 100 100] disp32 + emitByte(0x84 | regenc); + emitByte(0x24); + emitInt(disp); + } + } else { + // [base + disp] + assert base != rsp && (base != r12) : "illegal addressing mode"; + if (disp == 0 && base != rbp && (base != r13)) { + // [base] + // [00 reg base] + emitByte(0x00 | regenc | baseenc); + } else if (isByte(disp)) { + // [base + disp8] + // [01 reg base] disp8 + emitByte(0x40 | regenc | baseenc); + emitByte(disp & 0xFF); + } else { + // [base + disp32] + // [10 reg base] disp32 + emitByte(0x80 | regenc | baseenc); + emitInt(disp); + } + } + } else { + if (index.isValid()) { + int indexenc = encode(index) << 3; + // [indexscale + disp] + // [00 reg 100][ss index 101] disp32 + assert index != rsp : "illegal addressing mode"; + emitByte(0x04 | regenc); + emitByte(scale.log2 << 6 | indexenc | 0x05); + emitInt(disp); + } else { + // [disp] ABSOLUTE + // [00 reg 100][00 100 101] disp32 + emitByte(0x04 | regenc); + emitByte(0x25); + emitInt(disp); + } + } + } + + public final void addl(Address dst, int imm32) { + prefix(dst); + emitArithOperand(0x81, rax, dst, imm32); + } + + public final void addl(Address dst, Register src) { + prefix(dst, src); + emitByte(0x01); + emitOperandHelper(src, dst); + } + + public final void addl(Register dst, int imm32) { + prefix(dst); + emitArith(0x81, 0xC0, dst, imm32); + } + + public final void addl(Register dst, Address src) { + prefix(src, dst); + emitByte(0x03); + emitOperandHelper(dst, src); + } + + public final void addl(Register dst, Register src) { + prefixAndEncode(dst.encoding, src.encoding); + emitArith(0x03, 0xC0, dst, src); + } + + private void addrNop4() { + // 4 bytes: NOP DWORD PTR [EAX+0] + emitByte(0x0F); + emitByte(0x1F); + emitByte(0x40); // emitRm(cbuf, 0x1, EAXEnc, EAXEnc); + emitByte(0); // 8-bits offset (1 byte) + } + + private void addrNop5() { + // 5 bytes: NOP DWORD PTR [EAX+EAX*0+0] 8-bits offset + emitByte(0x0F); + emitByte(0x1F); + emitByte(0x44); // emitRm(cbuf, 0x1, EAXEnc, 0x4); + emitByte(0x00); // emitRm(cbuf, 0x0, EAXEnc, EAXEnc); + emitByte(0); // 8-bits offset (1 byte) + } + + private void addrNop7() { + // 7 bytes: NOP DWORD PTR [EAX+0] 32-bits offset + emitByte(0x0F); + emitByte(0x1F); + emitByte(0x80); // emitRm(cbuf, 0x2, EAXEnc, EAXEnc); + emitInt(0); // 32-bits offset (4 bytes) + } + + private void addrNop8() { + // 8 bytes: NOP DWORD PTR [EAX+EAX*0+0] 32-bits offset + emitByte(0x0F); + emitByte(0x1F); + emitByte(0x84); // emitRm(cbuf, 0x2, EAXEnc, 0x4); + emitByte(0x00); // emitRm(cbuf, 0x0, EAXEnc, EAXEnc); + emitInt(0); // 32-bits offset (4 bytes) + } + + public final void addsd(Register dst, Register src) { + assert dst.isFpu() && src.isFpu(); + emitByte(0xF2); + int encode = prefixAndEncode(dst.encoding, src.encoding); + emitByte(0x0F); + emitByte(0x58); + emitByte(0xC0 | encode); + } + + public final void addsd(Register dst, Address src) { + assert dst.isFpu(); + emitByte(0xF2); + prefix(src, dst); + emitByte(0x0F); + emitByte(0x58); + emitOperandHelper(dst, src); + } + + public final void addss(Register dst, Register src) { + assert dst.isFpu() && src.isFpu(); + emitByte(0xF3); + int encode = prefixAndEncode(dst.encoding, src.encoding); + emitByte(0x0F); + emitByte(0x58); + emitByte(0xC0 | encode); + } + + public final void addss(Register dst, Address src) { + assert dst.isFpu(); + emitByte(0xF3); + prefix(src, dst); + emitByte(0x0F); + emitByte(0x58); + emitOperandHelper(dst, src); + } + + public final void andl(Register dst, int imm32) { + prefix(dst); + emitArith(0x81, 0xE0, dst, imm32); + } + + public final void andl(Register dst, Address src) { + prefix(src, dst); + emitByte(0x23); + emitOperandHelper(dst, src); + } + + public final void andl(Register dst, Register src) { + prefixAndEncode(dst.encoding, src.encoding); + emitArith(0x23, 0xC0, dst, src); + } + + public final void bsfq(Register dst, Register src) { + int encode = prefixqAndEncode(dst.encoding, src.encoding); + emitByte(0x0F); + emitByte(0xBC); + emitByte(0xC0 | encode); + } + + public final void bsfq(Register dst, Address src) { + prefixq(src, dst); + emitByte(0xBC); + emitOperandHelper(dst, src); + } + + public final void bsrq(Register dst, Register src) { + int encode = prefixqAndEncode(dst.encoding, src.encoding); + emitByte(0x0F); + emitByte(0xBD); + emitByte(0xC0 | encode); + } + + + public final void bsrq(Register dst, Address src) { + prefixq(src, dst); + emitByte(0xBD); + emitOperandHelper(dst, src); + } + + public final void bsrl(Register dst, Register src) { + int encode = prefixAndEncode(dst.encoding, src.encoding); + emitByte(0x0F); + emitByte(0xBD); + emitByte(0xC0 | encode); + } + + + public final void bsrl(Register dst, Address src) { + prefix(src, dst); + emitByte(0xBD); + emitOperandHelper(dst, src); + } + + public final void bswapl(Register reg) { // bswap + int encode = prefixAndEncode(reg.encoding); + emitByte(0x0F); + emitByte(0xC8 | encode); + } + + public final void btli(Address src, int imm8) { + prefixq(src); + emitByte(0x0F); + emitByte(0xBA); + emitOperandHelper(rsp, src); + emitByte(imm8); + } + + public final void cdql() { + emitByte(0x99); + } + + public final void cmovl(ConditionFlag cc, Register dst, Register src) { + int encode = prefixAndEncode(dst.encoding, src.encoding); + emitByte(0x0F); + emitByte(0x40 | cc.value); + emitByte(0xC0 | encode); + } + + public final void cmovl(ConditionFlag cc, Register dst, Address src) { + prefix(src, dst); + emitByte(0x0F); + emitByte(0x40 | cc.value); + emitOperandHelper(dst, src); + } + + public final void cmpb(Address dst, int imm8) { + prefix(dst); + emitByte(0x80); + emitOperandHelper(rdi, dst); + emitByte(imm8); + } + + public final void cmpl(Address dst, int imm32) { + prefix(dst); + emitByte(0x81); + emitOperandHelper(rdi, dst); + emitInt(imm32); + } + + public final void cmpl(Register dst, int imm32) { + prefix(dst); + emitArith(0x81, 0xF8, dst, imm32); + } + + public final void cmpl(Register dst, Register src) { + prefixAndEncode(dst.encoding, src.encoding); + emitArith(0x3B, 0xC0, dst, src); + } + + public final void cmpl(Register dst, Address src) { + prefix(src, dst); + emitByte(0x3B); + emitOperandHelper(dst, src); + } + + // The 32-bit cmpxchg compares the value at adr with the contents of X86.rax, + // and stores reg into adr if so; otherwise, the value at adr is loaded into X86.rax,. + // The ZF is set if the compared values were equal, and cleared otherwise. + public final void cmpxchgl(Register reg, Address adr) { // cmpxchg + if ((Atomics & 2) != 0) { + // caveat: no instructionmark, so this isn't relocatable. + // Emit a synthetic, non-atomic, CAS equivalent. + // Beware. The synthetic form sets all ICCs, not just ZF. + // cmpxchg r,[m] is equivalent to X86.rax, = CAS (m, X86.rax, r) + cmpl(rax, adr); + movl(rax, adr); + if (reg != rax) { + Label l = new Label(); + jcc(ConditionFlag.notEqual, l); + movl(adr, reg); + bind(l); + } + } else { + + prefix(adr, reg); + emitByte(0x0F); + emitByte(0xB1); + emitOperandHelper(reg, adr); + } + } + + public final void comisd(Register dst, Address src) { + assert dst.isFpu(); + // NOTE: dbx seems to decode this as comiss even though the + // 0x66 is there. Strangly ucomisd comes out correct + emitByte(0x66); + comiss(dst, src); + } + + public final void comiss(Register dst, Address src) { + assert dst.isFpu(); + + prefix(src, dst); + emitByte(0x0F); + emitByte(0x2F); + emitOperandHelper(dst, src); + } + + public final void cvtdq2pd(Register dst, Register src) { + assert dst.isFpu(); + assert src.isFpu(); + + emitByte(0xF3); + int encode = prefixAndEncode(dst.encoding, src.encoding); + emitByte(0x0F); + emitByte(0xE6); + emitByte(0xC0 | encode); + } + + public final void cvtdq2ps(Register dst, Register src) { + assert dst.isFpu(); + assert src.isFpu(); + int encode = prefixAndEncode(dst.encoding, src.encoding); + emitByte(0x0F); + emitByte(0x5B); + emitByte(0xC0 | encode); + } + + public final void cvtsd2ss(Register dst, Register src) { + assert dst.isFpu(); + assert src.isFpu(); + emitByte(0xF2); + int encode = prefixAndEncode(dst.encoding, src.encoding); + emitByte(0x0F); + emitByte(0x5A); + emitByte(0xC0 | encode); + } + + public final void cvtsi2sdl(Register dst, Register src) { + assert dst.isFpu(); + emitByte(0xF2); + int encode = prefixAndEncode(dst.encoding, src.encoding); + emitByte(0x0F); + emitByte(0x2A); + emitByte(0xC0 | encode); + } + + public final void cvtsi2ssl(Register dst, Register src) { + assert dst.isFpu(); + emitByte(0xF3); + int encode = prefixAndEncode(dst.encoding, src.encoding); + emitByte(0x0F); + emitByte(0x2A); + emitByte(0xC0 | encode); + } + + public final void cvtss2sd(Register dst, Register src) { + assert dst.isFpu(); + assert src.isFpu(); + emitByte(0xF3); + int encode = prefixAndEncode(dst.encoding, src.encoding); + emitByte(0x0F); + emitByte(0x5A); + emitByte(0xC0 | encode); + } + + public final void cvttsd2sil(Register dst, Register src) { + assert src.isFpu(); + emitByte(0xF2); + int encode = prefixAndEncode(dst.encoding, src.encoding); + emitByte(0x0F); + emitByte(0x2C); + emitByte(0xC0 | encode); + } + + public final void cvttss2sil(Register dst, Register src) { + assert src.isFpu(); + emitByte(0xF3); + int encode = prefixAndEncode(dst.encoding, src.encoding); + emitByte(0x0F); + emitByte(0x2C); + emitByte(0xC0 | encode); + } + + public final void decl(Address dst) { + // Don't use it directly. Use Macrodecrement() instead. + prefix(dst); + emitByte(0xFF); + emitOperandHelper(rcx, dst); + } + + public final void divsd(Register dst, Address src) { + assert dst.isFpu(); + emitByte(0xF2); + prefix(src, dst); + emitByte(0x0F); + emitByte(0x5E); + emitOperandHelper(dst, src); + } + + public final void divsd(Register dst, Register src) { + assert dst.isFpu(); + assert src.isFpu(); + emitByte(0xF2); + int encode = prefixAndEncode(dst.encoding, src.encoding); + emitByte(0x0F); + emitByte(0x5E); + emitByte(0xC0 | encode); + } + + public final void divss(Register dst, Address src) { + assert dst.isFpu(); + emitByte(0xF3); + prefix(src, dst); + emitByte(0x0F); + emitByte(0x5E); + emitOperandHelper(dst, src); + } + + public final void divss(Register dst, Register src) { + assert dst.isFpu(); + assert src.isFpu(); + emitByte(0xF3); + int encode = prefixAndEncode(dst.encoding, src.encoding); + emitByte(0x0F); + emitByte(0x5E); + emitByte(0xC0 | encode); + } + + public final void hlt() { + emitByte(0xF4); + } + + public final void idivl(Register src) { + int encode = prefixAndEncode(src.encoding); + emitByte(0xF7); + emitByte(0xF8 | encode); + } + + public final void divl(Register src) { + int encode = prefixAndEncode(src.encoding); + emitByte(0xF7); + emitByte(0xF0 | encode); + } + + public final void imull(Register dst, Register src) { + int encode = prefixAndEncode(dst.encoding, src.encoding); + emitByte(0x0F); + emitByte(0xAF); + emitByte(0xC0 | encode); + } + + public final void imull(Register dst, Register src, int value) { + int encode = prefixAndEncode(dst.encoding, src.encoding); + if (isByte(value)) { + emitByte(0x6B); + emitByte(0xC0 | encode); + emitByte(value & 0xFF); + } else { + emitByte(0x69); + emitByte(0xC0 | encode); + emitInt(value); + } + } + + public final void incl(Address dst) { + // Don't use it directly. Use Macroincrement() instead. + prefix(dst); + emitByte(0xFF); + emitOperandHelper(rax, dst); + } + + public final void jcc(ConditionFlag cc, int jumpTarget, boolean forceDisp32) { + int shortSize = 2; + int longSize = 6; + long disp = jumpTarget - codeBuffer.position(); + if (!forceDisp32 && isByte(disp - shortSize)) { + // 0111 tttn #8-bit disp + emitByte(0x70 | cc.value); + emitByte((int) ((disp - shortSize) & 0xFF)); + } else { + // 0000 1111 1000 tttn #32-bit disp + assert isInt(disp - longSize) : "must be 32bit offset (call4)"; + emitByte(0x0F); + emitByte(0x80 | cc.value); + emitInt((int) (disp - longSize)); + } + } + + public final void jcc(ConditionFlag cc, Label l) { + assert (0 <= cc.value) && (cc.value < 16) : "illegal cc"; + if (l.isBound()) { + jcc(cc, l.position(), false); + } else { + // Note: could eliminate cond. jumps to this jump if condition + // is the same however, seems to be rather unlikely case. + // Note: use jccb() if label to be bound is very close to get + // an 8-bit displacement + l.addPatchAt(codeBuffer.position()); + emitByte(0x0F); + emitByte(0x80 | cc.value); + emitInt(0); + } + + } + + public final void jccb(ConditionFlag cc, Label l) { + if (l.isBound()) { + int shortSize = 2; + int entry = l.position(); + assert isByte(entry - (codeBuffer.position() + shortSize)) : "Dispacement too large for a short jmp"; + long disp = entry - codeBuffer.position(); + // 0111 tttn #8-bit disp + emitByte(0x70 | cc.value); + emitByte((int) ((disp - shortSize) & 0xFF)); + } else { + + l.addPatchAt(codeBuffer.position()); + emitByte(0x70 | cc.value); + emitByte(0); + } + } + + public final void jmp(Address adr) { + prefix(adr); + emitByte(0xFF); + emitOperandHelper(rsp, adr); + } + + public final void jmp(int jumpTarget, boolean forceDisp32) { + int shortSize = 2; + int longSize = 5; + long disp = jumpTarget - codeBuffer.position(); + if (!forceDisp32 && isByte(disp - shortSize)) { + emitByte(0xEB); + emitByte((int) ((disp - shortSize) & 0xFF)); + } else { + emitByte(0xE9); + emitInt((int) (disp - longSize)); + } + } + + @Override + public final void jmp(Label l) { + if (l.isBound()) { + jmp(l.position(), false); + } else { + // By default, forward jumps are always 32-bit displacements, since + // we can't yet know where the label will be bound. If you're sure that + // the forward jump will not run beyond 256 bytes, use jmpb to + // force an 8-bit displacement. + + l.addPatchAt(codeBuffer.position()); + emitByte(0xE9); + emitInt(0); + } + } + + public final void jmp(Register entry) { + int encode = prefixAndEncode(entry.encoding); + emitByte(0xFF); + emitByte(0xE0 | encode); + } + + public final void jmpb(Label l) { + if (l.isBound()) { + int shortSize = 2; + int entry = l.position(); + assert isByte((entry - codeBuffer.position()) + shortSize) : "Dispacement too large for a short jmp"; + long offs = entry - codeBuffer.position(); + emitByte(0xEB); + emitByte((int) ((offs - shortSize) & 0xFF)); + } else { + + l.addPatchAt(codeBuffer.position()); + emitByte(0xEB); + emitByte(0); + } + } + + public final void leaq(Register dst, Address src) { + prefixq(src, dst); + emitByte(0x8D); + emitOperandHelper(dst, src); + } + + public final void enter(int imm16, int imm8) { + emitByte(0xC8); + emitShort(imm16); + emitByte(imm8); + } + + public final void leave() { + emitByte(0xC9); + } + + public final void lock() { + if ((Atomics & 1) != 0) { + // Emit either nothing, a NOP, or a NOP: prefix + emitByte(0x90); + } else { + emitByte(0xF0); + } + } + + // Emit mfence instruction + public final void mfence() { + emitByte(0x0F); + emitByte(0xAE); + emitByte(0xF0); + } + + public final void mov(Register dst, Register src) { + movq(dst, src); + } + + public final void movapd(Register dst, Register src) { + assert dst.isFpu(); + assert src.isFpu(); + int dstenc = dst.encoding; + int srcenc = src.encoding; + emitByte(0x66); + if (dstenc < 8) { + if (srcenc >= 8) { + emitByte(Prefix.REXB); + srcenc -= 8; + } + } else { + if (srcenc < 8) { + emitByte(Prefix.REXR); + } else { + emitByte(Prefix.REXRB); + srcenc -= 8; + } + dstenc -= 8; + } + emitByte(0x0F); + emitByte(0x28); + emitByte(0xC0 | dstenc << 3 | srcenc); + } + + public final void movaps(Register dst, Register src) { + assert dst.isFpu(); + assert src.isFpu(); + int dstenc = dst.encoding; + int srcenc = src.encoding; + if (dstenc < 8) { + if (srcenc >= 8) { + emitByte(Prefix.REXB); + srcenc -= 8; + } + } else { + if (srcenc < 8) { + emitByte(Prefix.REXR); + } else { + emitByte(Prefix.REXRB); + srcenc -= 8; + } + dstenc -= 8; + } + emitByte(0x0F); + emitByte(0x28); + emitByte(0xC0 | dstenc << 3 | srcenc); + } + + public final void movb(Register dst, Address src) { + prefix(src, dst); // , true) + emitByte(0x8A); + emitOperandHelper(dst, src); + } + + public final void movb(Address dst, int imm8) { + prefix(dst); + emitByte(0xC6); + emitOperandHelper(rax, dst); + emitByte(imm8); + } + + public final void movb(Address dst, Register src) { + assert src.isByte() : "must have byte register"; + prefix(dst, src); // , true) + emitByte(0x88); + emitOperandHelper(src, dst); + } + + public final void movdl(Register dst, Register src) { + if (dst.isFpu()) { + assert !src.isFpu() : "does this hold?"; + emitByte(0x66); + int encode = prefixAndEncode(dst.encoding, src.encoding); + emitByte(0x0F); + emitByte(0x6E); + emitByte(0xC0 | encode); + } else if (src.isFpu()) { + assert !dst.isFpu(); + emitByte(0x66); + // swap src/dst to get correct prefix + int encode = prefixAndEncode(src.encoding, dst.encoding); + emitByte(0x0F); + emitByte(0x7E); + emitByte(0xC0 | encode); + } + } + + public final void movdqa(Register dst, Address src) { + assert dst.isFpu(); + emitByte(0x66); + prefix(src, dst); + emitByte(0x0F); + emitByte(0x6F); + emitOperandHelper(dst, src); + } + + public final void movdqa(Register dst, Register src) { + assert dst.isFpu(); + emitByte(0x66); + int encode = prefixqAndEncode(dst.encoding, src.encoding); + emitByte(0x0F); + emitByte(0x6F); + emitByte(0xC0 | encode); + } + + public final void movdqa(Address dst, Register src) { + assert src.isFpu(); + emitByte(0x66); + prefix(dst, src); + emitByte(0x0F); + emitByte(0x7F); + emitOperandHelper(src, dst); + } + + public final void movdqu(Register dst, Address src) { + assert dst.isFpu(); + emitByte(0xF3); + prefix(src, dst); + emitByte(0x0F); + emitByte(0x6F); + emitOperandHelper(dst, src); + } + + public final void movdqu(Register dst, Register src) { + assert dst.isFpu(); + assert src.isFpu(); + + emitByte(0xF3); + int encode = prefixqAndEncode(dst.encoding, src.encoding); + emitByte(0x0F); + emitByte(0x6F); + emitByte(0xC0 | encode); + } + + public final void movdqu(Address dst, Register src) { + assert src.isFpu(); + + emitByte(0xF3); + prefix(dst, src); + emitByte(0x0F); + emitByte(0x7F); + emitOperandHelper(src, dst); + } + + public final void movl(Register dst, int imm32) { + int encode = prefixAndEncode(dst.encoding); + emitByte(0xB8 | encode); + emitInt(imm32); + } + + public final void movl(Register dst, Register src) { + int encode = prefixAndEncode(dst.encoding, src.encoding); + emitByte(0x8B); + emitByte(0xC0 | encode); + } + + public final void movl(Register dst, Address src) { + prefix(src, dst); + emitByte(0x8B); + emitOperandHelper(dst, src); + } + + public final void movl(Address dst, int imm32) { + prefix(dst); + emitByte(0xC7); + emitOperandHelper(rax, dst); + emitInt(imm32); + } + + public final void movl(Address dst, Register src) { + prefix(dst, src); + emitByte(0x89); + emitOperandHelper(src, dst); + } + + /** + * New CPUs require use of movsd and movss to avoid partial register stall + * when loading from memory. But for old Opteron use movlpd instead of movsd. + * The selection is done in {@link AMD64MacroAssembler#movdbl(Register, Address)} + * and {@link AMD64MacroAssembler#movflt(Register, Register)}. + */ + public final void movlpd(Register dst, Address src) { + assert dst.isFpu(); + emitByte(0x66); + prefix(src, dst); + emitByte(0x0F); + emitByte(0x12); + emitOperandHelper(dst, src); + } + + public final void movlpd(Address dst, Register src) { + assert src.isFpu(); + emitByte(0x66); + prefix(dst, src); + emitByte(0x0F); + emitByte(0x13); + emitOperandHelper(src, dst); + } + + public final void movq(Register dst, Address src) { + if (dst.isFpu()) { + emitByte(0xF3); + prefixq(src, dst); + emitByte(0x0F); + emitByte(0x7E); + emitOperandHelper(dst, src); + } else { + prefixq(src, dst); + emitByte(0x8B); + emitOperandHelper(dst, src); + } + } + + public final void movq(Register dst, Register src) { + int encode = prefixqAndEncode(dst.encoding, src.encoding); + emitByte(0x8B); + emitByte(0xC0 | encode); + } + + public final void movq(Address dst, Register src) { + if (src.isFpu()) { + emitByte(0x66); + prefixq(dst, src); + emitByte(0x0F); + emitByte(0xD6); + emitOperandHelper(src, dst); + } else { + prefixq(dst, src); + emitByte(0x89); + emitOperandHelper(src, dst); + } + } + + public final void movsxb(Register dst, Address src) { // movsxb + prefix(src, dst); + emitByte(0x0F); + emitByte(0xBE); + emitOperandHelper(dst, src); + } + + public final void movsxb(Register dst, Register src) { // movsxb + int encode = prefixAndEncode(dst.encoding, src.encoding, true); + emitByte(0x0F); + emitByte(0xBE); + emitByte(0xC0 | encode); + } + + public final void movsd(Register dst, Register src) { + assert dst.isFpu(); + assert src.isFpu(); + emitByte(0xF2); + int encode = prefixAndEncode(dst.encoding, src.encoding); + emitByte(0x0F); + emitByte(0x10); + emitByte(0xC0 | encode); + } + + public final void movsd(Register dst, Address src) { + assert dst.isFpu(); + emitByte(0xF2); + prefix(src, dst); + emitByte(0x0F); + emitByte(0x10); + emitOperandHelper(dst, src); + } + + public final void movsd(Address dst, Register src) { + assert src.isFpu(); + emitByte(0xF2); + prefix(dst, src); + emitByte(0x0F); + emitByte(0x11); + emitOperandHelper(src, dst); + } + + public final void movss(Register dst, Register src) { + assert dst.isFpu(); + assert src.isFpu(); + emitByte(0xF3); + int encode = prefixAndEncode(dst.encoding, src.encoding); + emitByte(0x0F); + emitByte(0x10); + emitByte(0xC0 | encode); + } + + public final void movss(Register dst, Address src) { + assert dst.isFpu(); + emitByte(0xF3); + prefix(src, dst); + emitByte(0x0F); + emitByte(0x10); + emitOperandHelper(dst, src); + } + + public final void movss(Address dst, Register src) { + assert src.isFpu(); + emitByte(0xF3); + prefix(dst, src); + emitByte(0x0F); + emitByte(0x11); + emitOperandHelper(src, dst); + } + + public final void movswl(Register dst, Address src) { + prefix(src, dst); + emitByte(0x0F); + emitByte(0xBF); + emitOperandHelper(dst, src); + } + + public final void movsxw(Register dst, Register src) { // movsxw + int encode = prefixAndEncode(dst.encoding, src.encoding); + emitByte(0x0F); + emitByte(0xBF); + emitByte(0xC0 | encode); + } + + public final void movsxw(Register dst, Address src) { // movsxw + prefix(src, dst); + emitByte(0x0F); + emitByte(0xBF); + emitOperandHelper(dst, src); + } + + public final void movzxd(Register dst, Register src) { // movzxd + int encode = prefixAndEncode(dst.encoding, src.encoding); + emitByte(0x63); + emitByte(0xC0 | encode); + } + + public final void movzxd(Register dst, Address src) { // movzxd + prefix(src, dst); + emitByte(0x63); + emitOperandHelper(dst, src); + } + + public final void movw(Address dst, int imm16) { + emitByte(0x66); // switch to 16-bit mode + prefix(dst); + emitByte(0xC7); + emitOperandHelper(rax, dst); + emitShort(imm16); + } + + public final void movw(Register dst, Address src) { + emitByte(0x66); + prefix(src, dst); + emitByte(0x8B); + emitOperandHelper(dst, src); + } + + public final void movw(Address dst, Register src) { + emitByte(0x66); + prefix(dst, src); + emitByte(0x89); + emitOperandHelper(src, dst); + } + + public final void movzxb(Register dst, Address src) { // movzxb + prefix(src, dst); + emitByte(0x0F); + emitByte(0xB6); + emitOperandHelper(dst, src); + } + + public final void movzxb(Register dst, Register src) { // movzxb + int encode = prefixAndEncode(dst.encoding, src.encoding, true); + emitByte(0x0F); + emitByte(0xB6); + emitByte(0xC0 | encode); + } + + public final void movzxl(Register dst, Address src) { // movzxw + prefix(src, dst); + emitByte(0x0F); + emitByte(0xB7); + emitOperandHelper(dst, src); + } + + public final void movzxl(Register dst, Register src) { // movzxw + int encode = prefixAndEncode(dst.encoding, src.encoding); + emitByte(0x0F); + emitByte(0xB7); + emitByte(0xC0 | encode); + } + + public final void mull(Address src) { + prefix(src); + emitByte(0xF7); + emitOperandHelper(rsp, src); + } + + public final void mulsd(Register dst, Address src) { + assert dst.isFpu(); + emitByte(0xF2); + prefix(src, dst); + emitByte(0x0F); + emitByte(0x59); + emitOperandHelper(dst, src); + } + + public final void mulsd(Register dst, Register src) { + assert dst.isFpu(); + assert src.isFpu(); + + emitByte(0xF2); + int encode = prefixAndEncode(dst.encoding, src.encoding); + emitByte(0x0F); + emitByte(0x59); + emitByte(0xC0 | encode); + } + + public final void mulss(Register dst, Address src) { + assert dst.isFpu(); + + emitByte(0xF3); + prefix(src, dst); + emitByte(0x0F); + emitByte(0x59); + emitOperandHelper(dst, src); + } + + public final void mulss(Register dst, Register src) { + assert dst.isFpu(); + assert src.isFpu(); + emitByte(0xF3); + int encode = prefixAndEncode(dst.encoding, src.encoding); + emitByte(0x0F); + emitByte(0x59); + emitByte(0xC0 | encode); + } + + public final void negl(Register dst) { + int encode = prefixAndEncode(dst.encoding); + emitByte(0xF7); + emitByte(0xD8 | encode); + } + + public final void ensureUniquePC() { + nop(); + } + + public final void nop() { + nop(1); + } + + public void nop(int count) { + int i = count; + if (UseNormalNop) { + assert i > 0 : " "; + // The fancy nops aren't currently recognized by debuggers making it a + // pain to disassemble code while debugging. If assert are on clearly + // speed is not an issue so simply use the single byte traditional nop + // to do alignment. + + for (; i > 0; i--) { + emitByte(0x90); + } + return; + } + + if (UseAddressNop) { + // + // Using multi-bytes nops "0x0F 0x1F [Address]" for AMD. + // 1: 0x90 + // 2: 0x66 0x90 + // 3: 0x66 0x66 0x90 (don't use "0x0F 0x1F 0x00" - need patching safe padding) + // 4: 0x0F 0x1F 0x40 0x00 + // 5: 0x0F 0x1F 0x44 0x00 0x00 + // 6: 0x66 0x0F 0x1F 0x44 0x00 0x00 + // 7: 0x0F 0x1F 0x80 0x00 0x00 0x00 0x00 + // 8: 0x0F 0x1F 0x84 0x00 0x00 0x00 0x00 0x00 + // 9: 0x66 0x0F 0x1F 0x84 0x00 0x00 0x00 0x00 0x00 + // 10: 0x66 0x66 0x0F 0x1F 0x84 0x00 0x00 0x00 0x00 0x00 + // 11: 0x66 0x66 0x66 0x0F 0x1F 0x84 0x00 0x00 0x00 0x00 0x00 + + // The rest coding is AMD specific - use consecutive Address nops + + // 12: 0x66 0x0F 0x1F 0x44 0x00 0x00 0x66 0x0F 0x1F 0x44 0x00 0x00 + // 13: 0x0F 0x1F 0x80 0x00 0x00 0x00 0x00 0x66 0x0F 0x1F 0x44 0x00 0x00 + // 14: 0x0F 0x1F 0x80 0x00 0x00 0x00 0x00 0x0F 0x1F 0x80 0x00 0x00 0x00 0x00 + // 15: 0x0F 0x1F 0x84 0x00 0x00 0x00 0x00 0x00 0x0F 0x1F 0x80 0x00 0x00 0x00 0x00 + // 16: 0x0F 0x1F 0x84 0x00 0x00 0x00 0x00 0x00 0x0F 0x1F 0x84 0x00 0x00 0x00 0x00 0x00 + // Size prefixes (0x66) are added for larger sizes + + while (i >= 22) { + i -= 11; + emitByte(0x66); // size prefix + emitByte(0x66); // size prefix + emitByte(0x66); // size prefix + addrNop8(); + } + // Generate first nop for size between 21-12 + switch (i) { + case 21: + i -= 1; + emitByte(0x66); // size prefix + // fall through + case 20: + // fall through + case 19: + i -= 1; + emitByte(0x66); // size prefix + // fall through + case 18: + // fall through + case 17: + i -= 1; + emitByte(0x66); // size prefix + // fall through + case 16: + // fall through + case 15: + i -= 8; + addrNop8(); + break; + case 14: + case 13: + i -= 7; + addrNop7(); + break; + case 12: + i -= 6; + emitByte(0x66); // size prefix + addrNop5(); + break; + default: + assert i < 12; + } + + // Generate second nop for size between 11-1 + switch (i) { + case 11: + emitByte(0x66); // size prefix + emitByte(0x66); // size prefix + emitByte(0x66); // size prefix + addrNop8(); + break; + case 10: + emitByte(0x66); // size prefix + emitByte(0x66); // size prefix + addrNop8(); + break; + case 9: + emitByte(0x66); // size prefix + addrNop8(); + break; + case 8: + addrNop8(); + break; + case 7: + addrNop7(); + break; + case 6: + emitByte(0x66); // size prefix + addrNop5(); + break; + case 5: + addrNop5(); + break; + case 4: + addrNop4(); + break; + case 3: + // Don't use "0x0F 0x1F 0x00" - need patching safe padding + emitByte(0x66); // size prefix + emitByte(0x66); // size prefix + emitByte(0x90); // nop + break; + case 2: + emitByte(0x66); // size prefix + emitByte(0x90); // nop + break; + case 1: + emitByte(0x90); // nop + break; + default: + assert i == 0; + } + return; + } + + // Using nops with size prefixes "0x66 0x90". + // From AMD Optimization Guide: + // 1: 0x90 + // 2: 0x66 0x90 + // 3: 0x66 0x66 0x90 + // 4: 0x66 0x66 0x66 0x90 + // 5: 0x66 0x66 0x90 0x66 0x90 + // 6: 0x66 0x66 0x90 0x66 0x66 0x90 + // 7: 0x66 0x66 0x66 0x90 0x66 0x66 0x90 + // 8: 0x66 0x66 0x66 0x90 0x66 0x66 0x66 0x90 + // 9: 0x66 0x66 0x90 0x66 0x66 0x90 0x66 0x66 0x90 + // 10: 0x66 0x66 0x66 0x90 0x66 0x66 0x90 0x66 0x66 0x90 + // + while (i > 12) { + i -= 4; + emitByte(0x66); // size prefix + emitByte(0x66); + emitByte(0x66); + emitByte(0x90); // nop + } + // 1 - 12 nops + if (i > 8) { + if (i > 9) { + i -= 1; + emitByte(0x66); + } + i -= 3; + emitByte(0x66); + emitByte(0x66); + emitByte(0x90); + } + // 1 - 8 nops + if (i > 4) { + if (i > 6) { + i -= 1; + emitByte(0x66); + } + i -= 3; + emitByte(0x66); + emitByte(0x66); + emitByte(0x90); + } + switch (i) { + case 4: + emitByte(0x66); + emitByte(0x66); + emitByte(0x66); + emitByte(0x90); + break; + case 3: + emitByte(0x66); + emitByte(0x66); + emitByte(0x90); + break; + case 2: + emitByte(0x66); + emitByte(0x90); + break; + case 1: + emitByte(0x90); + break; + default: + assert i == 0; + } + } + + public final void notl(Register dst) { + int encode = prefixAndEncode(dst.encoding); + emitByte(0xF7); + emitByte(0xD0 | encode); + } + + public final void orl(Address dst, int imm32) { + prefix(dst); + emitByte(0x81); + emitOperandHelper(rcx, dst); + emitInt(imm32); + } + + public final void orl(Register dst, int imm32) { + prefix(dst); + emitArith(0x81, 0xC8, dst, imm32); + } + + public final void orl(Register dst, Address src) { + prefix(src, dst); + emitByte(0x0B); + emitOperandHelper(dst, src); + } + + public final void orl(Register dst, Register src) { + prefixAndEncode(dst.encoding, src.encoding); + emitArith(0x0B, 0xC0, dst, src); + } + + // generic + public final void pop(Register dst) { + int encode = prefixAndEncode(dst.encoding); + emitByte(0x58 | encode); + } + + public final void prefetchPrefix(Address src) { + prefix(src); + emitByte(0x0F); + } + + public final void prefetchnta(Address src) { + prefetchPrefix(src); + emitByte(0x18); + emitOperandHelper(rax, src); // 0, src + } + + public final void prefetchr(Address src) { + prefetchPrefix(src); + emitByte(0x0D); + emitOperandHelper(rax, src); // 0, src + } + + public final void prefetcht0(Address src) { + prefetchPrefix(src); + emitByte(0x18); + emitOperandHelper(rcx, src); // 1, src + + } + + public final void prefetcht1(Address src) { + prefetchPrefix(src); + emitByte(0x18); + emitOperandHelper(rdx, src); // 2, src + } + + public final void prefetcht2(Address src) { + prefetchPrefix(src); + emitByte(0x18); + emitOperandHelper(rbx, src); // 3, src + } + + public final void prefetchw(Address src) { + prefetchPrefix(src); + emitByte(0x0D); + emitOperandHelper(rcx, src); // 1, src + } + + public final void pshufd(Register dst, Register src, int mode) { + assert dst.isFpu(); + assert src.isFpu(); + assert isUByte(mode) : "invalid value"; + + emitByte(0x66); + int encode = prefixAndEncode(dst.encoding, src.encoding); + emitByte(0x0F); + emitByte(0x70); + emitByte(0xC0 | encode); + emitByte(mode & 0xFF); + } + + public final void pshufd(Register dst, Address src, int mode) { + assert dst.isFpu(); + assert isUByte(mode) : "invalid value"; + + emitByte(0x66); + prefix(src, dst); + emitByte(0x0F); + emitByte(0x70); + emitOperandHelper(dst, src); + emitByte(mode & 0xFF); + + } + + public final void pshuflw(Register dst, Register src, int mode) { + assert dst.isFpu(); + assert src.isFpu(); + assert isUByte(mode) : "invalid value"; + + emitByte(0xF2); + int encode = prefixAndEncode(dst.encoding, src.encoding); + emitByte(0x0F); + emitByte(0x70); + emitByte(0xC0 | encode); + emitByte(mode & 0xFF); + } + + public final void pshuflw(Register dst, Address src, int mode) { + assert dst.isFpu(); + assert isUByte(mode) : "invalid value"; + + emitByte(0xF2); + prefix(src, dst); // QQ new + emitByte(0x0F); + emitByte(0x70); + emitOperandHelper(dst, src); + emitByte(mode & 0xFF); + } + + public final void psrlq(Register dst, int shift) { + assert dst.isFpu(); + // HMM Table D-1 says sse2 or mmx + + int encode = prefixqAndEncode(xmm2.encoding, dst.encoding); + emitByte(0x66); + emitByte(0x0F); + emitByte(0x73); + emitByte(0xC0 | encode); + emitByte(shift); + } + + public final void punpcklbw(Register dst, Register src) { + assert dst.isFpu(); + assert src.isFpu(); + emitByte(0x66); + int encode = prefixAndEncode(dst.encoding, src.encoding); + emitByte(0x0F); + emitByte(0x60); + emitByte(0xC0 | encode); + } + + public final void push(int imm32) { + // in 64bits we push 64bits onto the stack but only + // take a 32bit immediate + emitByte(0x68); + emitInt(imm32); + } + + public final void push(Register src) { + int encode = prefixAndEncode(src.encoding); + emitByte(0x50 | encode); + } + + public final void pushf() { + emitByte(0x9C); + } + + public final void pxor(Register dst, Address src) { + assert dst.isFpu(); + + emitByte(0x66); + prefix(src, dst); + emitByte(0x0F); + emitByte(0xEF); + emitOperandHelper(dst, src); + } + + public final void pxor(Register dst, Register src) { + assert dst.isFpu(); + assert src.isFpu(); + + emitByte(0x66); + int encode = prefixAndEncode(dst.encoding, src.encoding); + emitByte(0x0F); + emitByte(0xEF); + emitByte(0xC0 | encode); + + } + + public final void rcll(Register dst, int imm8) { + assert isShiftCount(imm8) : "illegal shift count"; + int encode = prefixAndEncode(dst.encoding); + if (imm8 == 1) { + emitByte(0xD1); + emitByte(0xD0 | encode); + } else { + emitByte(0xC1); + emitByte(0xD0 | encode); + emitByte(imm8); + } + } + + public final void pause() { + emitByte(0xF3); + emitByte(0x90); + } + + // Copies data from [X86.rsi] to [X86.rdi] using X86.rcx heap words. + public final void repeatMoveWords() { + emitByte(0xF3); + emitByte(Prefix.REXW); + emitByte(0xA5); + } + + // Copies data from [X86.rsi] to [X86.rdi] using X86.rcx bytes. + public final void repeatMoveBytes() { + emitByte(0xF3); + emitByte(Prefix.REXW); + emitByte(0xA4); + } + + // sets X86.rcx pointer sized words with X86.rax, value at [edi] + // generic + public final void repSet() { // repSet + emitByte(0xF3); + // STOSQ + emitByte(Prefix.REXW); + emitByte(0xAB); + } + + // scans X86.rcx pointer sized words at [edi] for occurance of X86.rax, + // generic + public final void repneScan() { // repneScan + emitByte(0xF2); + // SCASQ + emitByte(Prefix.REXW); + emitByte(0xAF); + } + + // scans X86.rcx 4 byte words at [edi] for occurance of X86.rax, + // generic + public final void repneScanl() { // repneScan + emitByte(0xF2); + // SCASL + emitByte(0xAF); + } + + public final void ret(int imm16) { + if (imm16 == 0) { + emitByte(0xC3); + } else { + emitByte(0xC2); + emitShort(imm16); + } + } + + public final void sarl(Register dst, int imm8) { + int encode = prefixAndEncode(dst.encoding); + assert isShiftCount(imm8) : "illegal shift count"; + if (imm8 == 1) { + emitByte(0xD1); + emitByte(0xF8 | encode); + } else { + emitByte(0xC1); + emitByte(0xF8 | encode); + emitByte(imm8); + } + } + + public final void sarl(Register dst) { + int encode = prefixAndEncode(dst.encoding); + emitByte(0xD3); + emitByte(0xF8 | encode); + } + + public final void sbbl(Address dst, int imm32) { + prefix(dst); + emitArithOperand(0x81, rbx, dst, imm32); + } + + public final void sbbl(Register dst, int imm32) { + prefix(dst); + emitArith(0x81, 0xD8, dst, imm32); + } + + public final void sbbl(Register dst, Address src) { + prefix(src, dst); + emitByte(0x1B); + emitOperandHelper(dst, src); + } + + public final void sbbl(Register dst, Register src) { + prefixAndEncode(dst.encoding, src.encoding); + emitArith(0x1B, 0xC0, dst, src); + } + + public final void setb(ConditionFlag cc, Register dst) { + assert 0 <= cc.value && cc.value < 16 : "illegal cc"; + int encode = prefixAndEncode(dst.encoding, true); + emitByte(0x0F); + emitByte(0x90 | cc.value); + emitByte(0xC0 | encode); + } + + public final void shll(Register dst, int imm8) { + assert isShiftCount(imm8) : "illegal shift count"; + int encode = prefixAndEncode(dst.encoding); + if (imm8 == 1) { + emitByte(0xD1); + emitByte(0xE0 | encode); + } else { + emitByte(0xC1); + emitByte(0xE0 | encode); + emitByte(imm8); + } + } + + public final void shll(Register dst) { + int encode = prefixAndEncode(dst.encoding); + emitByte(0xD3); + emitByte(0xE0 | encode); + } + + public final void shrl(Register dst, int imm8) { + assert isShiftCount(imm8) : "illegal shift count"; + int encode = prefixAndEncode(dst.encoding); + emitByte(0xC1); + emitByte(0xE8 | encode); + emitByte(imm8); + } + + public final void shrl(Register dst) { + int encode = prefixAndEncode(dst.encoding); + emitByte(0xD3); + emitByte(0xE8 | encode); + } + + // copies a single word from [esi] to [edi] + public final void smovl() { + emitByte(0xA5); + } + + public final void sqrtsd(Register dst, Register src) { + assert dst.isFpu(); + assert src.isFpu(); + // HMM Table D-1 says sse2 + // assert is64 || target.supportsSSE(); + emitByte(0xF2); + int encode = prefixAndEncode(dst.encoding, src.encoding); + emitByte(0x0F); + emitByte(0x51); + emitByte(0xC0 | encode); + } + + public final void subl(Address dst, int imm32) { + prefix(dst); + if (isByte(imm32)) { + emitByte(0x83); + emitOperandHelper(rbp, dst); + emitByte(imm32 & 0xFF); + } else { + emitByte(0x81); + emitOperandHelper(rbp, dst); + emitInt(imm32); + } + } + + public final void subl(Register dst, int imm32) { + prefix(dst); + emitArith(0x81, 0xE8, dst, imm32); + } + + public final void subl(Address dst, Register src) { + prefix(dst, src); + emitByte(0x29); + emitOperandHelper(src, dst); + } + + public final void subl(Register dst, Address src) { + prefix(src, dst); + emitByte(0x2B); + emitOperandHelper(dst, src); + } + + public final void subl(Register dst, Register src) { + prefixAndEncode(dst.encoding, src.encoding); + emitArith(0x2B, 0xC0, dst, src); + } + + public final void subsd(Register dst, Register src) { + assert dst.isFpu(); + assert src.isFpu(); + emitByte(0xF2); + int encode = prefixAndEncode(dst.encoding, src.encoding); + emitByte(0x0F); + emitByte(0x5C); + emitByte(0xC0 | encode); + } + + public final void subsd(Register dst, Address src) { + assert dst.isFpu(); + + emitByte(0xF2); + prefix(src, dst); + emitByte(0x0F); + emitByte(0x5C); + emitOperandHelper(dst, src); + } + + public final void subss(Register dst, Register src) { + assert dst.isFpu(); + assert src.isFpu(); + emitByte(0xF3); + int encode = prefixAndEncode(dst.encoding, src.encoding); + emitByte(0x0F); + emitByte(0x5C); + emitByte(0xC0 | encode); + } + + public final void subss(Register dst, Address src) { + assert dst.isFpu(); + + emitByte(0xF3); + prefix(src, dst); + emitByte(0x0F); + emitByte(0x5C); + emitOperandHelper(dst, src); + } + + public final void testb(Register dst, int imm8) { + prefixAndEncode(dst.encoding, true); + emitArithB(0xF6, 0xC0, dst, imm8); + } + + public final void testl(Register dst, int imm32) { + // not using emitArith because test + // doesn't support sign-extension of + // 8bit operands + int encode = dst.encoding; + if (encode == 0) { + emitByte(0xA9); + } else { + encode = prefixAndEncode(encode); + emitByte(0xF7); + emitByte(0xC0 | encode); + } + emitInt(imm32); + } + + public final void testl(Register dst, Register src) { + prefixAndEncode(dst.encoding, src.encoding); + emitArith(0x85, 0xC0, dst, src); + } + + public final void testl(Register dst, Address src) { + prefix(src, dst); + emitByte(0x85); + emitOperandHelper(dst, src); + } + + public final void ucomisd(Register dst, Address src) { + assert dst.isFpu(); + emitByte(0x66); + ucomiss(dst, src); + } + + public final void ucomisd(Register dst, Register src) { + assert dst.isFpu(); + assert src.isFpu(); + emitByte(0x66); + ucomiss(dst, src); + } + + public final void ucomiss(Register dst, Address src) { + assert dst.isFpu(); + + prefix(src, dst); + emitByte(0x0F); + emitByte(0x2E); + emitOperandHelper(dst, src); + } + + public final void ucomiss(Register dst, Register src) { + assert dst.isFpu(); + assert src.isFpu(); + int encode = prefixAndEncode(dst.encoding, src.encoding); + emitByte(0x0F); + emitByte(0x2E); + emitByte(0xC0 | encode); + } + + public final void xaddl(Address dst, Register src) { + assert src.isFpu(); + + prefix(dst, src); + emitByte(0x0F); + emitByte(0xC1); + emitOperandHelper(src, dst); + } + + public final void xchgl(Register dst, Address src) { // xchg + prefix(src, dst); + emitByte(0x87); + emitOperandHelper(dst, src); + } + + public final void xchgl(Register dst, Register src) { + int encode = prefixAndEncode(dst.encoding, src.encoding); + emitByte(0x87); + emitByte(0xc0 | encode); + } + + public final void xorl(Register dst, int imm32) { + prefix(dst); + emitArith(0x81, 0xF0, dst, imm32); + } + + public final void xorl(Register dst, Address src) { + prefix(src, dst); + emitByte(0x33); + emitOperandHelper(dst, src); + } + + public final void xorl(Register dst, Register src) { + prefixAndEncode(dst.encoding, src.encoding); + emitArith(0x33, 0xC0, dst, src); + } + + public final void andpd(Register dst, Register src) { + emitByte(0x66); + andps(dst, src); + } + + public final void andpd(Register dst, Address src) { + emitByte(0x66); + andps(dst, src); + } + + public final void andps(Register dst, Register src) { + assert dst.isFpu() && src.isFpu(); + int encode = prefixAndEncode(dst.encoding, src.encoding); + emitByte(0x0F); + emitByte(0x54); + emitByte(0xC0 | encode); + } + + public final void andps(Register dst, Address src) { + assert dst.isFpu(); + prefix(src, dst); + emitByte(0x0F); + emitByte(0x54); + emitOperandHelper(dst, src); + } + + public final void orpd(Register dst, Register src) { + emitByte(0x66); + orps(dst, src); + } + + public final void orpd(Register dst, Address src) { + emitByte(0x66); + orps(dst, src); + } + + public final void orps(Register dst, Register src) { + assert dst.isFpu() && src.isFpu(); + int encode = prefixAndEncode(dst.encoding, src.encoding); + emitByte(0x0F); + emitByte(0x56); + emitByte(0xC0 | encode); + } + + public final void orps(Register dst, Address src) { + assert dst.isFpu(); + prefix(src, dst); + emitByte(0x0F); + emitByte(0x56); + emitOperandHelper(dst, src); + } + + public final void xorpd(Register dst, Register src) { + emitByte(0x66); + xorps(dst, src); + } + + public final void xorpd(Register dst, Address src) { + emitByte(0x66); + xorps(dst, src); + } + + public final void xorps(Register dst, Register src) { + assert dst.isFpu() && src.isFpu(); + int encode = prefixAndEncode(dst.encoding, src.encoding); + emitByte(0x0F); + emitByte(0x57); + emitByte(0xC0 | encode); + } + + public final void xorps(Register dst, Address src) { + assert dst.isFpu(); + prefix(src, dst); + emitByte(0x0F); + emitByte(0x57); + emitOperandHelper(dst, src); + } + + // 32bit only pieces of the assembler + + public final void decl(Register dst) { + // Don't use it directly. Use Macrodecrementl() instead. + // Use two-byte form (one-byte form is a REX prefix in 64-bit mode) + int encode = prefixAndEncode(dst.encoding); + emitByte(0xFF); + emitByte(0xC8 | encode); + } + + public final void incl(Register dst) { + // Don't use it directly. Use Macroincrementl() instead. + // Use two-byte form (one-byte from is a REX prefix in 64-bit mode) + int encode = prefixAndEncode(dst.encoding); + emitByte(0xFF); + emitByte(0xC0 | encode); + } + + int prefixAndEncode(int regEnc) { + return prefixAndEncode(regEnc, false); + } + + int prefixAndEncode(int regEnc, boolean byteinst) { + if (regEnc >= 8) { + emitByte(Prefix.REXB); + return regEnc - 8; + } else if (byteinst && regEnc >= 4) { + emitByte(Prefix.REX); + } + return regEnc; + } + + int prefixqAndEncode(int regEnc) { + if (regEnc < 8) { + emitByte(Prefix.REXW); + return regEnc; + } else { + emitByte(Prefix.REXWB); + return regEnc - 8; + } + } + + int prefixAndEncode(int dstEnc, int srcEnc) { + return prefixAndEncode(dstEnc, srcEnc, false); + } + + int prefixAndEncode(int dstEncoding, int srcEncoding, boolean byteinst) { + int srcEnc = srcEncoding; + int dstEnc = dstEncoding; + if (dstEnc < 8) { + if (srcEnc >= 8) { + emitByte(Prefix.REXB); + srcEnc -= 8; + } else if (byteinst && srcEnc >= 4) { + emitByte(Prefix.REX); + } + } else { + if (srcEnc < 8) { + emitByte(Prefix.REXR); + } else { + emitByte(Prefix.REXRB); + srcEnc -= 8; + } + dstEnc -= 8; + } + return dstEnc << 3 | srcEnc; + } + + /** + * Creates prefix and the encoding of the lower 6 bits of the ModRM-Byte. It emits an operand prefix. If the given + * operands exceed 3 bits, the 4th bit is encoded in the prefix. + * + * @param regEncoding the encoding of the register part of the ModRM-Byte + * @param rmEncoding the encoding of the r/m part of the ModRM-Byte + * @return the lower 6 bits of the ModRM-Byte that should be emitted + */ + private int prefixqAndEncode(int regEncoding, int rmEncoding) { + int rmEnc = rmEncoding; + int regEnc = regEncoding; + if (regEnc < 8) { + if (rmEnc < 8) { + emitByte(Prefix.REXW); + } else { + emitByte(Prefix.REXWB); + rmEnc -= 8; + } + } else { + if (rmEnc < 8) { + emitByte(Prefix.REXWR); + } else { + emitByte(Prefix.REXWRB); + rmEnc -= 8; + } + regEnc -= 8; + } + return regEnc << 3 | rmEnc; + } + + private void prefix(Register reg) { + if (reg.encoding >= 8) { + emitByte(Prefix.REXB); + } + } + + private static boolean needsRex(Value value) { + return isRegister(value) && asRegister(value).encoding >= MinEncodingNeedsRex; + } + + + private void prefix(Address adr) { + if (needsRex(adr.getBase())) { + if (needsRex(adr.getIndex())) { + emitByte(Prefix.REXXB); + } else { + emitByte(Prefix.REXB); + } + } else { + if (needsRex(adr.getIndex())) { + emitByte(Prefix.REXX); + } + } + } + + private void prefixq(Address adr) { + if (needsRex(adr.getBase())) { + if (needsRex(adr.getIndex())) { + emitByte(Prefix.REXWXB); + } else { + emitByte(Prefix.REXWB); + } + } else { + if (needsRex(adr.getIndex())) { + emitByte(Prefix.REXWX); + } else { + emitByte(Prefix.REXW); + } + } + } + + private void prefix(Address adr, Register reg) { + if (reg.encoding < 8) { + if (needsRex(adr.getBase())) { + if (needsRex(adr.getIndex())) { + emitByte(Prefix.REXXB); + } else { + emitByte(Prefix.REXB); + } + } else { + if (needsRex(adr.getIndex())) { + emitByte(Prefix.REXX); + } else if (reg.encoding >= 4) { + emitByte(Prefix.REX); + } + } + } else { + if (needsRex(adr.getBase())) { + if (needsRex(adr.getIndex())) { + emitByte(Prefix.REXRXB); + } else { + emitByte(Prefix.REXRB); + } + } else { + if (needsRex(adr.getIndex())) { + emitByte(Prefix.REXRX); + } else { + emitByte(Prefix.REXR); + } + } + } + } + + private void prefixq(Address adr, Register src) { + if (src.encoding < 8) { + if (needsRex(adr.getBase())) { + if (needsRex(adr.getIndex())) { + emitByte(Prefix.REXWXB); + } else { + emitByte(Prefix.REXWB); + } + } else { + if (needsRex(adr.getIndex())) { + emitByte(Prefix.REXWX); + } else { + emitByte(Prefix.REXW); + } + } + } else { + if (needsRex(adr.getBase())) { + if (needsRex(adr.getIndex())) { + emitByte(Prefix.REXWRXB); + } else { + emitByte(Prefix.REXWRB); + } + } else { + if (needsRex(adr.getIndex())) { + emitByte(Prefix.REXWRX); + } else { + emitByte(Prefix.REXWR); + } + } + } + } + + public final void addq(Address dst, int imm32) { + prefixq(dst); + emitArithOperand(0x81, rax, dst, imm32); + } + + public final void addq(Address dst, Register src) { + prefixq(dst, src); + emitByte(0x01); + emitOperandHelper(src, dst); + } + + public final void addq(Register dst, int imm32) { + prefixqAndEncode(dst.encoding); + emitArith(0x81, 0xC0, dst, imm32); + } + + public final void addq(Register dst, Address src) { + prefixq(src, dst); + emitByte(0x03); + emitOperandHelper(dst, src); + } + + public final void addq(Register dst, Register src) { + prefixqAndEncode(dst.encoding, src.encoding); + emitArith(0x03, 0xC0, dst, src); + } + + public final void andq(Register dst, int imm32) { + prefixqAndEncode(dst.encoding); + emitArith(0x81, 0xE0, dst, imm32); + } + + public final void andq(Register dst, Address src) { + prefixq(src, dst); + emitByte(0x23); + emitOperandHelper(dst, src); + } + + public final void andq(Register dst, Register src) { + prefixqAndEncode(dst.encoding, src.encoding); + emitArith(0x23, 0xC0, dst, src); + } + + public final void bswapq(Register reg) { + int encode = prefixqAndEncode(reg.encoding); + emitByte(0x0F); + emitByte(0xC8 | encode); + } + + public final void cdqq() { + emitByte(Prefix.REXW); + emitByte(0x99); + } + + public final void cmovq(ConditionFlag cc, Register dst, Register src) { + int encode = prefixqAndEncode(dst.encoding, src.encoding); + emitByte(0x0F); + emitByte(0x40 | cc.value); + emitByte(0xC0 | encode); + } + + public final void cmovq(ConditionFlag cc, Register dst, Address src) { + prefixq(src, dst); + emitByte(0x0F); + emitByte(0x40 | cc.value); + emitOperandHelper(dst, src); + } + + public final void cmpq(Address dst, int imm32) { + prefixq(dst); + emitByte(0x81); + emitOperandHelper(rdi, dst); + emitInt(imm32); + } + + public final void cmpq(Register dst, int imm32) { + prefixqAndEncode(dst.encoding); + emitArith(0x81, 0xF8, dst, imm32); + } + + public final void cmpq(Address dst, Register src) { + prefixq(dst, src); + emitByte(0x3B); + emitOperandHelper(src, dst); + } + + public final void cmpq(Register dst, Register src) { + prefixqAndEncode(dst.encoding, src.encoding); + emitArith(0x3B, 0xC0, dst, src); + } + + public final void cmpq(Register dst, Address src) { + prefixq(src, dst); + emitByte(0x3B); + emitOperandHelper(dst, src); + } + + public final void cmpxchgq(Register reg, Address adr) { + prefixq(adr, reg); + emitByte(0x0F); + emitByte(0xB1); + emitOperandHelper(reg, adr); + } + + public final void cvtsi2sdq(Register dst, Register src) { + assert dst.isFpu(); + emitByte(0xF2); + int encode = prefixqAndEncode(dst.encoding, src.encoding); + emitByte(0x0F); + emitByte(0x2A); + emitByte(0xC0 | encode); + } + + public final void cvtsi2ssq(Register dst, Register src) { + assert dst.isFpu(); + emitByte(0xF3); + int encode = prefixqAndEncode(dst.encoding, src.encoding); + emitByte(0x0F); + emitByte(0x2A); + emitByte(0xC0 | encode); + } + + public final void cvttsd2siq(Register dst, Register src) { + assert src.isFpu(); + emitByte(0xF2); + int encode = prefixqAndEncode(dst.encoding, src.encoding); + emitByte(0x0F); + emitByte(0x2C); + emitByte(0xC0 | encode); + } + + public final void cvttss2siq(Register dst, Register src) { + assert src.isFpu(); + emitByte(0xF3); + int encode = prefixqAndEncode(dst.encoding, src.encoding); + emitByte(0x0F); + emitByte(0x2C); + emitByte(0xC0 | encode); + } + + public final void decq(Register dst) { + // Don't use it directly. Use Macrodecrementq() instead. + // Use two-byte form (one-byte from is a REX prefix in 64-bit mode) + int encode = prefixqAndEncode(dst.encoding); + emitByte(0xFF); + emitByte(0xC8 | encode); + } + + public final void decq(Address dst) { + // Don't use it directly. Use Macrodecrementq() instead. + prefixq(dst); + emitByte(0xFF); + emitOperandHelper(rcx, dst); + } + + public final void divq(Register src) { + int encode = prefixqAndEncode(src.encoding); + emitByte(0xF7); + emitByte(0xF0 | encode); + } + + public final void idivq(Register src) { + int encode = prefixqAndEncode(src.encoding); + emitByte(0xF7); + emitByte(0xF8 | encode); + } + + public final void imulq(Register dst, Register src) { + int encode = prefixqAndEncode(dst.encoding, src.encoding); + emitByte(0x0F); + emitByte(0xAF); + emitByte(0xC0 | encode); + } + + public final void imulq(Register dst, Register src, int value) { + int encode = prefixqAndEncode(dst.encoding, src.encoding); + if (isByte(value)) { + emitByte(0x6B); + emitByte(0xC0 | encode); + emitByte(value); + } else { + emitByte(0x69); + emitByte(0xC0 | encode); + emitInt(value); + } + } + + public final void incq(Register dst) { + // Don't use it directly. Use Macroincrementq() instead. + // Use two-byte form (one-byte from is a REX prefix in 64-bit mode) + int encode = prefixqAndEncode(dst.encoding); + emitByte(0xFF); + emitByte(0xC0 | encode); + } + + public final void incq(Address dst) { + // Don't use it directly. Use Macroincrementq() instead. + prefixq(dst); + emitByte(0xFF); + emitOperandHelper(rax, dst); + } + + public final void movq(Register dst, long imm64) { + int encode = prefixqAndEncode(dst.encoding); + emitByte(0xB8 | encode); + emitLong(imm64); + } + + public final void movdq(Register dst, Register src) { + + // table D-1 says MMX/SSE2 + emitByte(0x66); + + if (dst.isFpu()) { + assert dst.isFpu(); + int encode = prefixqAndEncode(dst.encoding, src.encoding); + emitByte(0x0F); + emitByte(0x6E); + emitByte(0xC0 | encode); + } else if (src.isFpu()) { + + // swap src/dst to get correct prefix + int encode = prefixqAndEncode(src.encoding, dst.encoding); + emitByte(0x0F); + emitByte(0x7E); + emitByte(0xC0 | encode); + } else { + throw new InternalError("should not reach here"); + } + } + + public final void movsbq(Register dst, Address src) { + prefixq(src, dst); + emitByte(0x0F); + emitByte(0xBE); + emitOperandHelper(dst, src); + } + + public final void movsbq(Register dst, Register src) { + int encode = prefixqAndEncode(dst.encoding, src.encoding); + emitByte(0x0F); + emitByte(0xBE); + emitByte(0xC0 | encode); + } + + public final void movslq(Register dst, int imm32) { + int encode = prefixqAndEncode(dst.encoding); + emitByte(0xC7 | encode); + emitInt(imm32); + // dbx shows movslq(X86.rcx, 3) as movq $0x0000000049000000,(%X86.rbx) + // and movslq(X86.r8, 3); as movl $0x0000000048000000,(%X86.rbx) + // as a result we shouldn't use until tested at runtime... + throw new InternalError("untested"); + } + + public final void movslq(Address dst, int imm32) { + prefixq(dst); + emitByte(0xC7); + emitOperandHelper(rax, dst); + emitInt(imm32); + } + + public final void movslq(Register dst, Address src) { + prefixq(src, dst); + emitByte(0x63); + emitOperandHelper(dst, src); + } + + public final void movslq(Register dst, Register src) { + int encode = prefixqAndEncode(dst.encoding, src.encoding); + emitByte(0x63); + emitByte(0xC0 | encode); + } + + public final void movswq(Register dst, Address src) { + prefixq(src, dst); + emitByte(0x0F); + emitByte(0xBF); + emitOperandHelper(dst, src); + } + + public final void movswq(Register dst, Register src) { + int encode = prefixqAndEncode(dst.encoding, src.encoding); + emitByte(0x0F); + emitByte(0xBF); + emitByte(0xC0 | encode); + } + + public final void movzbq(Register dst, Address src) { + prefixq(src, dst); + emitByte(0x0F); + emitByte(0xB6); + emitOperandHelper(dst, src); + } + + public final void movzbq(Register dst, Register src) { + int encode = prefixqAndEncode(dst.encoding, src.encoding); + emitByte(0x0F); + emitByte(0xB6); + emitByte(0xC0 | encode); + } + + public final void movzwq(Register dst, Address src) { + prefixq(src, dst); + emitByte(0x0F); + emitByte(0xB7); + emitOperandHelper(dst, src); + } + + public final void movzwq(Register dst, Register src) { + int encode = prefixqAndEncode(dst.encoding, src.encoding); + emitByte(0x0F); + emitByte(0xB7); + emitByte(0xC0 | encode); + } + + public final void negq(Register dst) { + int encode = prefixqAndEncode(dst.encoding); + emitByte(0xF7); + emitByte(0xD8 | encode); + } + + public final void notq(Register dst) { + int encode = prefixqAndEncode(dst.encoding); + emitByte(0xF7); + emitByte(0xD0 | encode); + } + + public final void orq(Address dst, int imm32) { + prefixq(dst); + emitByte(0x81); + emitOperandHelper(rcx, dst); + emitInt(imm32); + } + + public final void orq(Register dst, int imm32) { + prefixqAndEncode(dst.encoding); + emitArith(0x81, 0xC8, dst, imm32); + } + + public final void orq(Register dst, Address src) { + prefixq(src, dst); + emitByte(0x0B); + emitOperandHelper(dst, src); + } + + public final void orq(Register dst, Register src) { + prefixqAndEncode(dst.encoding, src.encoding); + emitArith(0x0B, 0xC0, dst, src); + } + + public final void popq(Address dst) { + prefixq(dst); + emitByte(0x8F); + emitOperandHelper(rax, dst); + } + + public final void pushq(Address src) { + prefixq(src); + emitByte(0xFF); + emitOperandHelper(rsi, src); + } + + public final void rclq(Register dst, int imm8) { + assert isShiftCount(imm8 >> 1) : "illegal shift count"; + int encode = prefixqAndEncode(dst.encoding); + if (imm8 == 1) { + emitByte(0xD1); + emitByte(0xD0 | encode); + } else { + emitByte(0xC1); + emitByte(0xD0 | encode); + emitByte(imm8); + } + } + + public final void sarq(Register dst, int imm8) { + assert isShiftCount(imm8 >> 1) : "illegal shift count"; + int encode = prefixqAndEncode(dst.encoding); + if (imm8 == 1) { + emitByte(0xD1); + emitByte(0xF8 | encode); + } else { + emitByte(0xC1); + emitByte(0xF8 | encode); + emitByte(imm8); + } + } + + public final void sarq(Register dst) { + int encode = prefixqAndEncode(dst.encoding); + emitByte(0xD3); + emitByte(0xF8 | encode); + } + + public final void shlq(Register dst, int imm8) { + assert isShiftCount(imm8 >> 1) : "illegal shift count"; + int encode = prefixqAndEncode(dst.encoding); + if (imm8 == 1) { + emitByte(0xD1); + emitByte(0xE0 | encode); + } else { + emitByte(0xC1); + emitByte(0xE0 | encode); + emitByte(imm8); + } + } + + public final void shlq(Register dst) { + int encode = prefixqAndEncode(dst.encoding); + emitByte(0xD3); + emitByte(0xE0 | encode); + } + + public final void shrq(Register dst, int imm8) { + assert isShiftCount(imm8 >> 1) : "illegal shift count"; + int encode = prefixqAndEncode(dst.encoding); + emitByte(0xC1); + emitByte(0xE8 | encode); + emitByte(imm8); + } + + public final void shrq(Register dst) { + int encode = prefixqAndEncode(dst.encoding); + emitByte(0xD3); + emitByte(0xE8 | encode); + } + + public final void sqrtsd(Register dst, Address src) { + assert dst.isFpu(); + + emitByte(0xF2); + prefix(src, dst); + emitByte(0x0F); + emitByte(0x51); + emitOperandHelper(dst, src); + } + + public final void subq(Address dst, int imm32) { + prefixq(dst); + if (isByte(imm32)) { + emitByte(0x83); + emitOperandHelper(rbp, dst); + emitByte(imm32 & 0xFF); + } else { + emitByte(0x81); + emitOperandHelper(rbp, dst); + emitInt(imm32); + } + } + + public final void subq(Register dst, int imm32) { + prefixqAndEncode(dst.encoding); + emitArith(0x81, 0xE8, dst, imm32); + } + + public final void subq(Address dst, Register src) { + prefixq(dst, src); + emitByte(0x29); + emitOperandHelper(src, dst); + } + + public final void subq(Register dst, Address src) { + prefixq(src, dst); + emitByte(0x2B); + emitOperandHelper(dst, src); + } + + public final void subq(Register dst, Register src) { + prefixqAndEncode(dst.encoding, src.encoding); + emitArith(0x2B, 0xC0, dst, src); + } + + public final void testq(Register dst, int imm32) { + // not using emitArith because test + // doesn't support sign-extension of + // 8bit operands + int encode = dst.encoding; + if (encode == 0) { + emitByte(Prefix.REXW); + emitByte(0xA9); + } else { + encode = prefixqAndEncode(encode); + emitByte(0xF7); + emitByte(0xC0 | encode); + } + emitInt(imm32); + } + + public final void testq(Register dst, Register src) { + prefixqAndEncode(dst.encoding, src.encoding); + emitArith(0x85, 0xC0, dst, src); + } + + public final void xaddq(Address dst, Register src) { + prefixq(dst, src); + emitByte(0x0F); + emitByte(0xC1); + emitOperandHelper(src, dst); + } + + public final void xchgq(Register dst, Address src) { + prefixq(src, dst); + emitByte(0x87); + emitOperandHelper(dst, src); + } + + public final void xchgq(Register dst, Register src) { + int encode = prefixqAndEncode(dst.encoding, src.encoding); + emitByte(0x87); + emitByte(0xc0 | encode); + } + + public final void xorq(Register dst, int imm32) { + prefixqAndEncode(dst.encoding); + emitArith(0x81, 0xF0, dst, imm32); + } + + public final void xorq(Register dst, Register src) { + prefixqAndEncode(dst.encoding, src.encoding); + emitArith(0x33, 0xC0, dst, src); + } + + public final void xorq(Register dst, Address src) { + + prefixq(src, dst); + emitByte(0x33); + emitOperandHelper(dst, src); + + } + + public final void membar(int barriers) { + if (target.isMP) { + // We only have to handle StoreLoad + if ((barriers & STORE_LOAD) != 0) { + // All usable chips support "locked" instructions which suffice + // as barriers, and are much faster than the alternative of + // using cpuid instruction. We use here a locked add [rsp],0. + // This is conveniently otherwise a no-op except for blowing + // flags. + // Any change to this code may need to revisit other places in + // the code where this idiom is used, in particular the + // orderAccess code. + lock(); + addl(new Address(Word, RSP, 0), 0); // Assert the lock# signal here + } + } + } + + @Override + protected final void patchJumpTarget(int branch, int branchTarget) { + int op = codeBuffer.getByte(branch); + assert op == 0xE8 // call + || op == 0x00 // jump table entry + || op == 0xE9 // jmp + || op == 0xEB // short jmp + || (op & 0xF0) == 0x70 // short jcc + || op == 0x0F && (codeBuffer.getByte(branch + 1) & 0xF0) == 0x80 // jcc + : "Invalid opcode at patch point branch=" + branch + ", branchTarget=" + branchTarget + ", op=" + op; + + if (op == 0x00) { + int offsetToJumpTableBase = codeBuffer.getShort(branch + 1); + int jumpTableBase = branch - offsetToJumpTableBase; + int imm32 = branchTarget - jumpTableBase; + codeBuffer.emitInt(imm32, branch); + } else if (op == 0xEB || (op & 0xF0) == 0x70) { + + // short offset operators (jmp and jcc) + int imm8 = branchTarget - (branch + 2); + codeBuffer.emitByte(imm8, branch + 1); + + } else { + + int off = 1; + if (op == 0x0F) { + off = 2; + } + + int imm32 = branchTarget - (branch + 4 + off); + codeBuffer.emitInt(imm32, branch + off); + } + } + + public void nullCheck(Register r) { + testl(AMD64.rax, new Address(Word, r.asValue(Word), 0)); + } + + @Override + public void align(int modulus) { + if (codeBuffer.position() % modulus != 0) { + nop(modulus - (codeBuffer.position() % modulus)); + } + } + + public void pushfq() { + emitByte(0x9c); + } + + public void popfq() { + emitByte(0x9D); + } + + /** + * Makes sure that a subsequent {@linkplain #call} does not fail the alignment check. + */ + public final void alignForPatchableDirectCall() { + int dispStart = codeBuffer.position() + 1; + int mask = target.wordSize - 1; + if ((dispStart & ~mask) != ((dispStart + 3) & ~mask)) { + nop(target.wordSize - (dispStart & mask)); + assert ((codeBuffer.position() + 1) & mask) == 0; + } + } + + /** + * Emits a direct call instruction. Note that the actual call target is not specified, because all calls + * need patching anyway. Therefore, 0 is emitted as the call target, and the user is responsible + * to add the call address to the appropriate patching tables. + */ + public final void call() { + emitByte(0xE8); + emitInt(0); + } + + public final void call(Register src) { + int encode = prefixAndEncode(src.encoding); + emitByte(0xFF); + emitByte(0xD0 | encode); + } + + public void int3() { + emitByte(0xCC); + } + + public void enter(short imm16, byte imm8) { + emitByte(0xC8); + // appended: + emitByte(imm16 & 0xff); + emitByte((imm16 >> 8) & 0xff); + emitByte(imm8); + } + + private void emitx87(int b1, int b2, int i) { + assert 0 <= i && i < 8 : "illegal stack offset"; + emitByte(b1); + emitByte(b2 + i); + } + + public void fld(Address src) { + emitByte(0xDD); + emitOperandHelper(rax, src); + } + + public void fld(int i) { + emitx87(0xD9, 0xC0, i); + } + + public void fldln2() { + emitByte(0xD9); + emitByte(0xED); + } + + public void fldlg2() { + emitByte(0xD9); + emitByte(0xEC); + } + + public void fyl2x() { + emitByte(0xD9); + emitByte(0xF1); + } + + public void fstp(Address src) { + emitByte(0xDD); + emitOperandHelper(rbx, src); + } + + public void fsin() { + emitByte(0xD9); + emitByte(0xFE); + } + + public void fcos() { + emitByte(0xD9); + emitByte(0xFF); + } + + public void fptan() { + emitByte(0xD9); + emitByte(0xF2); + } + + public void fstp(int i) { + emitx87(0xDD, 0xD8, i); + } + + @Override + public void bangStack(int disp) { + movq(new Address(target.wordKind, AMD64.RSP, -disp), AMD64.rax); + } +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/graal/com.oracle.graal.asm.amd64/src/com/oracle/max/asm/amd64/AMD64MacroAssembler.java Wed Oct 03 17:42:12 2012 +0200 @@ -0,0 +1,392 @@ +/* + * Copyright (c) 2009, 2011, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + */ +package com.oracle.max.asm.amd64; + +import static com.oracle.max.asm.amd64.AMD64AsmOptions.*; + +import com.oracle.graal.api.code.*; +import com.oracle.graal.api.meta.*; +import com.oracle.max.asm.*; + +/** + * This class implements commonly used X86 code patterns. + */ +public class AMD64MacroAssembler extends AMD64Assembler { + + public AMD64MacroAssembler(TargetDescription target, RegisterConfig registerConfig) { + super(target, registerConfig); + } + + public void pushptr(Address src) { + pushq(src); + } + + public void popptr(Address src) { + popq(src); + } + + public void xorptr(Register dst, Register src) { + xorq(dst, src); + } + + public void xorptr(Register dst, Address src) { + xorq(dst, src); + } + + // 64 bit versions + + + public void decrementq(Register reg, int value) { + if (value == Integer.MIN_VALUE) { + subq(reg, value); + return; + } + if (value < 0) { + incrementq(reg, -value); + return; + } + if (value == 0) { + return; + } + if (value == 1 && UseIncDec) { + decq(reg); + } else { + subq(reg, value); + } + } + + public void incrementq(Register reg, int value) { + if (value == Integer.MIN_VALUE) { + addq(reg, value); + return; + } + if (value < 0) { + decrementq(reg, -value); + return; + } + if (value == 0) { + return; + } + if (value == 1 && UseIncDec) { + incq(reg); + } else { + addq(reg, value); + } + } + + // These are mostly for initializing null + public void movptr(Address dst, int src) { + movslq(dst, src); + } + + public final void cmp32(Register src1, int imm) { + cmpl(src1, imm); + } + + public final void cmp32(Register src1, Address src2) { + cmpl(src1, src2); + } + + public void cmpsd2int(Register opr1, Register opr2, Register dst, boolean unorderedIsLess) { + assert opr1.isFpu() && opr2.isFpu(); + ucomisd(opr1, opr2); + + Label l = new Label(); + if (unorderedIsLess) { + movl(dst, -1); + jcc(AMD64Assembler.ConditionFlag.parity, l); + jcc(AMD64Assembler.ConditionFlag.below, l); + movl(dst, 0); + jcc(AMD64Assembler.ConditionFlag.equal, l); + incrementl(dst, 1); + } else { // unordered is greater + movl(dst, 1); + jcc(AMD64Assembler.ConditionFlag.parity, l); + jcc(AMD64Assembler.ConditionFlag.above, l); + movl(dst, 0); + jcc(AMD64Assembler.ConditionFlag.equal, l); + decrementl(dst, 1); + } + bind(l); + } + + public void cmpss2int(Register opr1, Register opr2, Register dst, boolean unorderedIsLess) { + assert opr1.isFpu(); + assert opr2.isFpu(); + ucomiss(opr1, opr2); + + Label l = new Label(); + if (unorderedIsLess) { + movl(dst, -1); + jcc(AMD64Assembler.ConditionFlag.parity, l); + jcc(AMD64Assembler.ConditionFlag.below, l); + movl(dst, 0); + jcc(AMD64Assembler.ConditionFlag.equal, l); + incrementl(dst, 1); + } else { // unordered is greater + movl(dst, 1); + jcc(AMD64Assembler.ConditionFlag.parity, l); + jcc(AMD64Assembler.ConditionFlag.above, l); + movl(dst, 0); + jcc(AMD64Assembler.ConditionFlag.equal, l); + decrementl(dst, 1); + } + bind(l); + } + + public void cmpptr(Register src1, Register src2) { + cmpq(src1, src2); + } + + public void cmpptr(Register src1, Address src2) { + cmpq(src1, src2); + } + + public void cmpptr(Register src1, int src2) { + cmpq(src1, src2); + } + + public void cmpptr(Address src1, int src2) { + cmpq(src1, src2); + } + + public void decrementl(Register reg, int value) { + if (value == Integer.MIN_VALUE) { + subl(reg, value); + return; + } + if (value < 0) { + incrementl(reg, -value); + return; + } + if (value == 0) { + return; + } + if (value == 1 && UseIncDec) { + decl(reg); + } else { + subl(reg, value); + } + } + + public void decrementl(Address dst, int value) { + if (value == Integer.MIN_VALUE) { + subl(dst, value); + return; + } + if (value < 0) { + incrementl(dst, -value); + return; + } + if (value == 0) { + return; + } + if (value == 1 && UseIncDec) { + decl(dst); + } else { + subl(dst, value); + } + } + + public void incrementl(Register reg, int value) { + if (value == Integer.MIN_VALUE) { + addl(reg, value); + return; + } + if (value < 0) { + decrementl(reg, -value); + return; + } + if (value == 0) { + return; + } + if (value == 1 && UseIncDec) { + incl(reg); + } else { + addl(reg, value); + } + } + + public void incrementl(Address dst, int value) { + if (value == Integer.MIN_VALUE) { + addl(dst, value); + return; + } + if (value < 0) { + decrementl(dst, -value); + return; + } + if (value == 0) { + return; + } + if (value == 1 && UseIncDec) { + incl(dst); + } else { + addl(dst, value); + } + } + + public void signExtendByte(Register reg) { + if (reg.isByte()) { + movsxb(reg, reg); // movsxb + } else { + shll(reg, 24); + sarl(reg, 24); + } + } + + public void signExtendShort(Register reg) { + movsxw(reg, reg); // movsxw + } + + // Support optimal SSE move instructions. + public void movflt(Register dst, Register src) { + assert dst.isFpu() && src.isFpu(); + if (UseXmmRegToRegMoveAll) { + movaps(dst, src); + } else { + movss(dst, src); + } + } + + public void movflt(Register dst, Address src) { + assert dst.isFpu(); + movss(dst, src); + } + + public void movflt(Address dst, Register src) { + assert src.isFpu(); + movss(dst, src); + } + + public void movdbl(Register dst, Register src) { + assert dst.isFpu() && src.isFpu(); + if (UseXmmRegToRegMoveAll) { + movapd(dst, src); + } else { + movsd(dst, src); + } + } + + public void movdbl(Register dst, Address src) { + assert dst.isFpu(); + if (UseXmmLoadAndClearUpper) { + movsd(dst, src); + } else { + movlpd(dst, src); + } + } + + public void movdbl(Address dst, Register src) { + assert src.isFpu(); + movsd(dst, src); + } + + /** + * Non-atomic write of a 64-bit constant to memory. Do not use + * if the address might be a volatile field! + */ + public void movlong(Address dst, long src) { + Address high = new Address(dst.getKind(), dst.getBase(), dst.getIndex(), dst.getScale(), dst.getDisplacement() + 4); + movl(dst, (int) (src & 0xFFFFFFFF)); + movl(high, (int) (src >> 32)); + } + + public void xchgptr(Register src1, Register src2) { + xchgq(src1, src2); + } + + public void flog(Register dest, Register value, boolean base10) { + assert value.spillSlotSize == dest.spillSlotSize; + + Address tmp = new Address(Kind.Double, AMD64.RSP); + if (base10) { + fldlg2(); + } else { + fldln2(); + } + subq(AMD64.rsp, value.spillSlotSize); + movsd(tmp, value); + fld(tmp); + fyl2x(); + fstp(tmp); + movsd(dest, tmp); + addq(AMD64.rsp, dest.spillSlotSize); + } + + public void fsin(Register dest, Register value) { + ftrig(dest, value, 's'); + } + + public void fcos(Register dest, Register value) { + ftrig(dest, value, 'c'); + } + + public void ftan(Register dest, Register value) { + ftrig(dest, value, 't'); + } + + private void ftrig(Register dest, Register value, char op) { + assert value.spillSlotSize == dest.spillSlotSize; + + Address tmp = new Address(Kind.Double, AMD64.RSP); + subq(AMD64.rsp, value.spillSlotSize); + movsd(tmp, value); + fld(tmp); + if (op == 's') { + fsin(); + } else if (op == 'c') { + fcos(); + } else if (op == 't') { + fptan(); + fstp(0); // ftan pushes 1.0 in addition to the actual result, pop + } else { + throw new InternalError("should not reach here"); + } + fstp(tmp); + movsd(dest, tmp); + addq(AMD64.rsp, dest.spillSlotSize); + } + + /** + * Emit code to save a given set of callee save registers in the + * {@linkplain CalleeSaveLayout CSA} within the frame. + * @param csl the description of the CSA + * @param frameToCSA offset from the frame pointer to the CSA + */ + public void save(CalleeSaveLayout csl, int frameToCSA) { + RegisterValue frame = frameRegister.asValue(); + for (Register r : csl.registers) { + int offset = csl.offsetOf(r); + movq(new Address(target.wordKind, frame, frameToCSA + offset), r); + } + } + + public void restore(CalleeSaveLayout csl, int frameToCSA) { + RegisterValue frame = frameRegister.asValue(); + for (Register r : csl.registers) { + int offset = csl.offsetOf(r); + movq(r, new Address(target.wordKind, frame, frameToCSA + offset)); + } + } +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/graal/com.oracle.graal.asm.amd64/src/com/oracle/max/asm/amd64/X86InstructionDecoder.java Wed Oct 03 17:42:12 2012 +0200 @@ -0,0 +1,507 @@ +/* + * Copyright (c) 2009, 2011, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + */ +package com.oracle.max.asm.amd64; + + +public final class X86InstructionDecoder { + + private boolean targetIs64Bit; + private byte[] code; + private int currentEndOfInstruction; + private int currentDisplacementPosition; + + private static class Prefix { + + // segment overrides + public static final int CSSegment = 0x2e; + public static final int SSSegment = 0x36; + public static final int DSSegment = 0x3e; + public static final int ESSegment = 0x26; + public static final int FSSegment = 0x64; + public static final int GSSegment = 0x65; + public static final int REX = 0x40; + public static final int REXB = 0x41; + public static final int REXX = 0x42; + public static final int REXXB = 0x43; + public static final int REXR = 0x44; + public static final int REXRB = 0x45; + public static final int REXRX = 0x46; + public static final int REXRXB = 0x47; + public static final int REXW = 0x48; + public static final int REXWB = 0x49; + public static final int REXWX = 0x4A; + public static final int REXWXB = 0x4B; + public static final int REXWR = 0x4C; + public static final int REXWRB = 0x4D; + public static final int REXWRX = 0x4E; + public static final int REXWRXB = 0x4F; + } + + private X86InstructionDecoder(byte[] code, boolean targetIs64Bit) { + this.code = code; + this.targetIs64Bit = targetIs64Bit; + } + + public int currentEndOfInstruction() { + return currentEndOfInstruction; + } + + public int currentDisplacementPosition() { + return currentDisplacementPosition; + } + + public void decodePosition(int inst) { + + assert inst >= 0 && inst < code.length; + + // Decode the given instruction, and return the Pointer of + // an embedded 32-bit operand word. + + // If "which" is WhichOperand.disp32operand, selects the displacement portion + // of an effective Pointer specifier. + // If "which" is imm64Operand, selects the trailing immediate constant. + // If "which" is WhichOperand.call32operand, selects the displacement of a call or jump. + // Caller is responsible for ensuring that there is such an operand, + // and that it is 32/64 bits wide. + + // If "which" is endPcOperand, find the end of the instruction. + + int ip = inst; + boolean is64bit = false; + + boolean hasDisp32 = false; + int tailSize = 0; // other random bytes (#32, #16, etc.) at end of insn + + boolean againAfterPrefix = true; + + while (againAfterPrefix) { + againAfterPrefix = false; + switch (0xFF & code[ip++]) { + + // These convenience macros generate groups of "case" labels for the switch. + + case Prefix.CSSegment: + case Prefix.SSSegment: + case Prefix.DSSegment: + case Prefix.ESSegment: + case Prefix.FSSegment: + case Prefix.GSSegment: + // Seems dubious + assert !targetIs64Bit : "shouldn't have that prefix"; + assert ip == inst + 1 : "only one prefix allowed"; + againAfterPrefix = true; + break; + + case 0x67: + case Prefix.REX: + case Prefix.REXB: + case Prefix.REXX: + case Prefix.REXXB: + case Prefix.REXR: + case Prefix.REXRB: + case Prefix.REXRX: + case Prefix.REXRXB: + assert targetIs64Bit : "64bit prefixes"; + againAfterPrefix = true; + break; + + case Prefix.REXW: + case Prefix.REXWB: + case Prefix.REXWX: + case Prefix.REXWXB: + case Prefix.REXWR: + case Prefix.REXWRB: + case Prefix.REXWRX: + case Prefix.REXWRXB: + assert targetIs64Bit : "64bit prefixes"; + is64bit = true; + againAfterPrefix = true; + break; + + case 0xFF: // pushq a; decl a; incl a; call a; jmp a + case 0x88: // movb a, r + case 0x89: // movl a, r + case 0x8A: // movb r, a + case 0x8B: // movl r, a + case 0x8F: // popl a + hasDisp32 = true; + break; + + case 0x68: // pushq #32 + currentEndOfInstruction = ip + 4; + currentDisplacementPosition = ip; + return; // not produced by emitOperand + + case 0x66: // movw ... (size prefix) + boolean againAfterSizePrefix2 = true; + while (againAfterSizePrefix2) { + againAfterSizePrefix2 = false; + switch (0xFF & code[ip++]) { + case Prefix.REX: + case Prefix.REXB: + case Prefix.REXX: + case Prefix.REXXB: + case Prefix.REXR: + case Prefix.REXRB: + case Prefix.REXRX: + case Prefix.REXRXB: + case Prefix.REXW: + case Prefix.REXWB: + case Prefix.REXWX: + case Prefix.REXWXB: + case Prefix.REXWR: + case Prefix.REXWRB: + case Prefix.REXWRX: + case Prefix.REXWRXB: + assert targetIs64Bit : "64bit prefix found"; + againAfterSizePrefix2 = true; + break; + case 0x8B: // movw r, a + case 0x89: // movw a, r + hasDisp32 = true; + break; + case 0xC7: // movw a, #16 + hasDisp32 = true; + tailSize = 2; // the imm16 + break; + case 0x0F: // several SSE/SSE2 variants + ip--; // reparse the 0x0F + againAfterPrefix = true; + break; + default: + throw new InternalError("should not reach here"); + } + } + break; + + case 0xB8: // movl/q r, #32/#64(oop?) + case 0xB9: + case 0xBA: + case 0xBB: + case 0xBC: + case 0xBD: + case 0xBE: + case 0xBF: + currentEndOfInstruction = ip + (is64bit ? 8 : 4); + currentDisplacementPosition = ip; + return; + + case 0x69: // imul r, a, #32 + case 0xC7: // movl a, #32(oop?) + tailSize = 4; + hasDisp32 = true; // has both kinds of operands! + break; + + case 0x0F: // movx..., etc. + switch (0xFF & code[ip++]) { + case 0x12: // movlps + case 0x28: // movaps + case 0x2E: // ucomiss + case 0x2F: // comiss + case 0x54: // andps + case 0x55: // andnps + case 0x56: // orps + case 0x57: // xorps + case 0x6E: // movd + case 0x7E: // movd + case 0xAE: // ldmxcsr a + // 64bit side says it these have both operands but that doesn't + // appear to be true + hasDisp32 = true; + break; + + case 0xAD: // shrd r, a, %cl + case 0xAF: // imul r, a + case 0xBE: // movsbl r, a (movsxb) + case 0xBF: // movswl r, a (movsxw) + case 0xB6: // movzbl r, a (movzxb) + case 0xB7: // movzwl r, a (movzxw) + case 0x40: // cmovl cc, r, a + case 0x41: + case 0x42: + case 0x43: + case 0x44: + case 0x45: + case 0x46: + case 0x47: + case 0x48: + case 0x49: + case 0x4A: + case 0x4B: + case 0x4C: + case 0x4D: + case 0x4E: + case 0x4F: + case 0xB0: // cmpxchgb + case 0xB1: // cmpxchg + case 0xC1: // xaddl + case 0xC7: // cmpxchg8 + case 0x90: // setcc a + case 0x91: + case 0x92: + case 0x93: + case 0x94: + case 0x95: + case 0x96: + case 0x97: + case 0x98: + case 0x99: + case 0x9A: + case 0x9B: + case 0x9C: + case 0x9D: + case 0x9E: + case 0x9F: + hasDisp32 = true; + // fall out of the switch to decode the Pointer + break; + + case 0xAC: // shrd r, a, #8 + hasDisp32 = true; + tailSize = 1; // the imm8 + break; + + case 0x80: // jcc rdisp32 + case 0x81: + case 0x82: + case 0x83: + case 0x84: + case 0x85: + case 0x86: + case 0x87: + case 0x88: + case 0x89: + case 0x8A: + case 0x8B: + case 0x8C: + case 0x8D: + case 0x8E: + case 0x8F: + currentEndOfInstruction = ip + 4; + currentDisplacementPosition = ip; + return; + default: + throw new InternalError("should not reach here"); + } + break; + + case 0x81: // addl a, #32; addl r, #32 + // also: orl, adcl, sbbl, andl, subl, xorl, cmpl + // on 32bit in the case of cmpl, the imm might be an oop + tailSize = 4; + hasDisp32 = true; // has both kinds of operands! + break; + + case 0x83: // addl a, #8; addl r, #8 + // also: orl, adcl, sbbl, andl, subl, xorl, cmpl + hasDisp32 = true; // has both kinds of operands! + tailSize = 1; + break; + + case 0x9B: + switch (0xFF & code[ip++]) { + case 0xD9: // fnstcw a + hasDisp32 = true; + break; + default: + throw new InternalError("should not reach here"); + } + break; + + case 0x00: // addb a, r; addl a, r; addb r, a; addl r, a + case 0x01: + case 0x02: + case 0x03: + case 0x10: // adc... + case 0x11: + case 0x12: + case 0x13: + case 0x20: // and... + case 0x21: + case 0x22: + case 0x23: + case 0x30: // xor... + case 0x31: + case 0x32: + case 0x33: + case 0x08: // or... + case 0x09: + case 0x0a: + case 0x0b: + case 0x18: // sbb... + case 0x19: + case 0x1a: + case 0x1b: + case 0x28: // sub... + case 0x29: + case 0x2a: + case 0x2b: + case 0xF7: // mull a + case 0x8D: // lea r, a + case 0x87: // xchg r, a + case 0x38: // cmp... + case 0x39: + case 0x3a: + case 0x3b: + case 0x85: // test r, a + hasDisp32 = true; // has both kinds of operands! + break; + + case 0xC1: // sal a, #8; sar a, #8; shl a, #8; shr a, #8 + case 0xC6: // movb a, #8 + case 0x80: // cmpb a, #8 + case 0x6B: // imul r, a, #8 + hasDisp32 = true; // has both kinds of operands! + tailSize = 1; // the imm8 + break; + + case 0xE8: // call rdisp32 + case 0xE9: // jmp rdisp32 + currentEndOfInstruction = ip + 4; + currentDisplacementPosition = ip; + return; + + case 0xD1: // sal a, 1; sar a, 1; shl a, 1; shr a, 1 + case 0xD3: // sal a, %cl; sar a, %cl; shl a, %cl; shr a, %cl + case 0xD9: // fldS a; fstS a; fstpS a; fldcw a + case 0xDD: // fldD a; fstD a; fstpD a + case 0xDB: // fildS a; fistpS a; fldX a; fstpX a + case 0xDF: // fildD a; fistpD a + case 0xD8: // faddS a; fsubrS a; fmulS a; fdivrS a; fcompS a + case 0xDC: // faddD a; fsubrD a; fmulD a; fdivrD a; fcompD a + case 0xDE: // faddpD a; fsubrpD a; fmulpD a; fdivrpD a; fcomppD a + hasDisp32 = true; + break; + + case 0xF0: // Lock + againAfterPrefix = true; + break; + + case 0xF3: // For SSE + case 0xF2: // For SSE2 + switch (0xFF & code[ip++]) { + case Prefix.REX: + case Prefix.REXB: + case Prefix.REXX: + case Prefix.REXXB: + case Prefix.REXR: + case Prefix.REXRB: + case Prefix.REXRX: + case Prefix.REXRXB: + case Prefix.REXW: + case Prefix.REXWB: + case Prefix.REXWX: + case Prefix.REXWXB: + case Prefix.REXWR: + case Prefix.REXWRB: + case Prefix.REXWRX: + case Prefix.REXWRXB: + assert targetIs64Bit : "found 64bit prefix"; + ip++; + // fall through + default: + ip++; + } + hasDisp32 = true; // has both kinds of operands! + break; + + default: + throw new InternalError("should not reach here"); + } + } + + assert hasDisp32 : "(thomaswue) not sure if this holds: instruction has no disp32 field"; + + // parse the output of emitOperand + int op2 = 0xFF & code[ip++]; + int base = op2 & 0x07; + int op3 = -1; + int b100 = 4; + int b101 = 5; + if (base == b100 && (op2 >> 6) != 3) { + op3 = 0xFF & code[ip++]; + base = op3 & 0x07; // refetch the base + } + // now ip points at the disp (if any) + + switch (op2 >> 6) { + case 0: + // [00 reg 100][ss index base] + // [00 reg 100][00 100 esp] + // [00 reg base] + // [00 reg 100][ss index 101][disp32] + // [00 reg 101] [disp32] + + if (base == b101) { + + currentDisplacementPosition = ip; + ip += 4; // skip the disp32 + } + break; + + case 1: + // [01 reg 100][ss index base][disp8] + // [01 reg 100][00 100 esp][disp8] + // [01 reg base] [disp8] + ip += 1; // skip the disp8 + break; + + case 2: + // [10 reg 100][ss index base][disp32] + // [10 reg 100][00 100 esp][disp32] + // [10 reg base] [disp32] + currentDisplacementPosition = ip; + ip += 4; // skip the disp32 + break; + + case 3: + // [11 reg base] (not a memory addressing mode) + break; + } + + currentEndOfInstruction = ip + tailSize; + } + + public static void patchRelativeInstruction(byte[] code, int codePos, int relative) { + X86InstructionDecoder decoder = new X86InstructionDecoder(code, true); + decoder.decodePosition(codePos); + int patchPos = decoder.currentDisplacementPosition(); + int endOfInstruction = decoder.currentEndOfInstruction(); + int offset = relative - endOfInstruction + codePos; + patchDisp32(code, patchPos, offset); + } + + private static void patchDisp32(byte[] code, int pos, int offset) { + assert pos + 4 <= code.length; + + assert code[pos] == 0; + assert code[pos + 1] == 0; + assert code[pos + 2] == 0; + assert code[pos + 3] == 0; + + code[pos] = (byte) (offset & 0xFF); + code[pos + 1] = (byte) ((offset >> 8) & 0xFF); + code[pos + 2] = (byte) ((offset >> 16) & 0xFF); + code[pos + 3] = (byte) ((offset >> 24) & 0xFF); + } +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/graal/com.oracle.graal.asm/overview.html Wed Oct 03 17:42:12 2012 +0200 @@ -0,0 +1,36 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN"> +<html> +<head> +<!-- + +Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved. +DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + +This code is free software; you can redistribute it and/or modify it +under the terms of the GNU General Public License version 2 only, as +published by the Free Software Foundation. Oracle designates this +particular file as subject to the "Classpath" exception as provided +by Oracle in the LICENSE file that accompanied this code. + +This code is distributed in the hope that it will be useful, but WITHOUT +ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or +FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License +version 2 for more details (a copy is included in the LICENSE file that +accompanied this code). + +You should have received a copy of the GNU General Public License version +2 along with this work; if not, write to the Free Software Foundation, +Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + +Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA +or visit www.oracle.com if you need additional information or have any +questions. +--> + +</head> +<body> + +Documentation for the <code>com.oracle.max.asm</code> project. + +</body> +</html>
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/graal/com.oracle.graal.asm/src/com/oracle/max/asm/AbstractAssembler.java Wed Oct 03 17:42:12 2012 +0200 @@ -0,0 +1,80 @@ +/* + * Copyright (c) 2009, 2011, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + */ +package com.oracle.max.asm; + +import com.oracle.graal.api.code.*; +import com.oracle.graal.api.code.Architecture.*; + +/** + * The platform-independent base class for the assembler. + */ +public abstract class AbstractAssembler { + public final TargetDescription target; + public final Buffer codeBuffer; + + public AbstractAssembler(TargetDescription target) { + this.target = target; + + if (target.arch.byteOrder == ByteOrder.BigEndian) { + this.codeBuffer = new Buffer.BigEndian(); + } else { + this.codeBuffer = new Buffer.LittleEndian(); + } + } + + public final void bind(Label l) { + assert !l.isBound() : "can bind label only once"; + l.bind(codeBuffer.position()); + l.patchInstructions(this); + } + + public abstract void align(int modulus); + + public abstract void jmp(Label l); + + protected abstract void patchJumpTarget(int branch, int jumpTarget); + + /** + * Emits instruction(s) that access an address specified by a given displacement from the stack pointer + * in the direction that the stack grows (which is down on most architectures). + * + * @param disp the displacement from the stack pointer at which the stack should be accessed + */ + public abstract void bangStack(int disp); + + protected final void emitByte(int x) { + codeBuffer.emitByte(x); + } + + protected final void emitShort(int x) { + codeBuffer.emitShort(x); + } + + protected final void emitInt(int x) { + codeBuffer.emitInt(x); + } + + protected final void emitLong(long x) { + codeBuffer.emitLong(x); + } +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/graal/com.oracle.graal.asm/src/com/oracle/max/asm/AsmOptions.java Wed Oct 03 17:42:12 2012 +0200 @@ -0,0 +1,27 @@ +/* + * Copyright (c) 2011, 2011, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + */ +package com.oracle.max.asm; + +public class AsmOptions { + public static int InitialCodeBufferSize = 232; +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/graal/com.oracle.graal.asm/src/com/oracle/max/asm/Buffer.java Wed Oct 03 17:42:12 2012 +0200 @@ -0,0 +1,242 @@ +/* + * Copyright (c) 2009, 2011, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + */ +package com.oracle.max.asm; + +import java.util.*; + +/** + * Code buffer management for the assembler. Support for little endian and big endian architectures is implemented using subclasses. + */ +public abstract class Buffer { + protected byte[] data; + protected int position; + + public Buffer() { + data = new byte[AsmOptions.InitialCodeBufferSize]; + } + + public void reset() { + position = 0; + } + + public int position() { + return position; + } + + public void setPosition(int position) { + assert position >= 0 && position <= data.length; + this.position = position; + } + + /** + * Closes this buffer. No extra data can be written to this buffer after + * this call. + * + * @param trimmedCopy + * if {@code true}, then a copy of the underlying byte array up + * to (but not including) {@code position()} is returned + * @return the data in this buffer or a trimmed copy if {@code trimmedCopy} + * is {@code true} + */ + public byte[] close(boolean trimmedCopy) { + byte[] result = trimmedCopy ? Arrays.copyOf(data, position()) : data; + data = null; + return result; + } + + public byte[] copyData(int start, int end) { + return Arrays.copyOfRange(data, start, end); + } + + /** + * Copies the data from this buffer into a given array. + * + * @param dst + * the destination array + * @param off + * starting position in {@code dst} + * @param len + * number of bytes to copy + */ + public void copyInto(byte[] dst, int off, int len) { + System.arraycopy(data, 0, dst, off, len); + } + + protected void ensureSize(int length) { + if (length >= data.length) { + data = Arrays.copyOf(data, length * 4); + } + } + + public void emitBytes(byte[] arr, int off, int len) { + ensureSize(position + len); + System.arraycopy(arr, off, data, position, len); + position += len; + } + + public void emitByte(int b) { + position = emitByte(b, position); + } + + public void emitShort(int b) { + position = emitShort(b, position); + } + + public void emitInt(int b) { + position = emitInt(b, position); + } + + public void emitLong(long b) { + position = emitLong(b, position); + } + + public int emitByte(int b, int pos) { + assert NumUtil.isUByte(b); + int newPos = pos + 1; + ensureSize(newPos); + data[pos] = (byte) (b & 0xFF); + return newPos; + } + + public abstract int emitShort(int b, int pos); + + public abstract int emitInt(int b, int pos); + + public abstract int emitLong(long b, int pos); + + public int getByte(int pos) { + return data[pos] & 0xff; + } + + public abstract int getShort(int pos); + + public abstract int getInt(int pos); + + public static final class BigEndian extends Buffer { + @Override + public int emitShort(int b, int pos) { + assert NumUtil.isUShort(b); + int newPos = pos + 2; + ensureSize(pos + 2); + data[pos] = (byte) ((b >> 8) & 0xFF); + data[pos + 1] = (byte) (b & 0xFF); + return newPos; + } + + @Override + public int emitInt(int b, int pos) { + int newPos = pos + 4; + ensureSize(newPos); + data[pos] = (byte) ((b >> 24) & 0xFF); + data[pos + 1] = (byte) ((b >> 16) & 0xFF); + data[pos + 2] = (byte) ((b >> 8) & 0xFF); + data[pos + 3] = (byte) (b & 0xFF); + return newPos; + } + + @Override + public int emitLong(long b, int pos) { + int newPos = pos + 8; + ensureSize(newPos); + data[pos] = (byte) ((b >> 56) & 0xFF); + data[pos + 1] = (byte) ((b >> 48) & 0xFF); + data[pos + 2] = (byte) ((b >> 40) & 0xFF); + data[pos + 3] = (byte) ((b >> 32) & 0xFF); + data[pos + 4] = (byte) ((b >> 24) & 0xFF); + data[pos + 5] = (byte) ((b >> 16) & 0xFF); + data[pos + 6] = (byte) ((b >> 8) & 0xFF); + data[pos + 7] = (byte) (b & 0xFF); + return newPos; + } + + @Override + public int getShort(int pos) { + return + (data[pos + 0] & 0xff) << 8 | + (data[pos + 1] & 0xff) << 0; + } + + @Override + public int getInt(int pos) { + return + (data[pos + 0] & 0xff) << 24 | + (data[pos + 1] & 0xff) << 16 | + (data[pos + 2] & 0xff) << 8 | + (data[pos + 3] & 0xff) << 0; + } + } + + public static final class LittleEndian extends Buffer { + @Override + public int emitShort(int b, int pos) { + assert NumUtil.isUShort(b); + int newPos = pos + 2; + ensureSize(newPos); + data[pos] = (byte) (b & 0xFF); + data[pos + 1] = (byte) ((b >> 8) & 0xFF); + return newPos; + } + + @Override + public int emitInt(int b, int pos) { + int newPos = pos + 4; + ensureSize(newPos); + data[pos] = (byte) (b & 0xFF); + data[pos + 1] = (byte) ((b >> 8) & 0xFF); + data[pos + 2] = (byte) ((b >> 16) & 0xFF); + data[pos + 3] = (byte) ((b >> 24) & 0xFF); + return newPos; + } + + @Override + public int emitLong(long b, int pos) { + int newPos = pos + 8; + ensureSize(newPos); + data[pos] = (byte) (b & 0xFF); + data[pos + 1] = (byte) ((b >> 8) & 0xFF); + data[pos + 2] = (byte) ((b >> 16) & 0xFF); + data[pos + 3] = (byte) ((b >> 24) & 0xFF); + data[pos + 4] = (byte) ((b >> 32) & 0xFF); + data[pos + 5] = (byte) ((b >> 40) & 0xFF); + data[pos + 6] = (byte) ((b >> 48) & 0xFF); + data[pos + 7] = (byte) ((b >> 56) & 0xFF); + return newPos; + } + + @Override + public int getShort(int pos) { + return + (data[pos + 1] & 0xff) << 8 | + (data[pos + 0] & 0xff) << 0; + } + + @Override + public int getInt(int pos) { + return + (data[pos + 3] & 0xff) << 24 | + (data[pos + 2] & 0xff) << 16 | + (data[pos + 1] & 0xff) << 8 | + (data[pos + 0] & 0xff) << 0; + } + } +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/graal/com.oracle.graal.asm/src/com/oracle/max/asm/Label.java Wed Oct 03 17:42:12 2012 +0200 @@ -0,0 +1,83 @@ +/* + * Copyright (c) 2009, 2011, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + */ +package com.oracle.max.asm; + +import java.util.ArrayList; + +/** + * This class represents a label within assembly code. + */ +public final class Label { + private int position = -1; + + /** + * References to instructions that jump to this unresolved label. + * These instructions need to be patched when the label is bound + * using the {@link #patchInstructions(AbstractAssembler)} method. + */ + private ArrayList<Integer> patchPositions = new ArrayList<>(4); + + /** + * Returns the position of this label in the code buffer. + * @return the position + */ + public int position() { + assert position >= 0 : "Unbound label is being referenced"; + return position; + } + + public Label() { + } + + /** + * Binds the label to the specified position. + * @param pos the position + */ + protected void bind(int pos) { + this.position = pos; + assert isBound(); + } + + public boolean isBound() { + return position >= 0; + } + + public void addPatchAt(int branchLocation) { + assert !isBound() : "Label is already bound"; + patchPositions.add(branchLocation); + } + + protected void patchInstructions(AbstractAssembler masm) { + assert isBound() : "Label should be bound"; + int target = position; + for (int i = 0; i < patchPositions.size(); ++i) { + int pos = patchPositions.get(i); + masm.patchJumpTarget(pos, target); + } + } + + @Override + public String toString() { + return isBound() ? String.valueOf(position()) : "?"; + } +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/graal/com.oracle.graal.asm/src/com/oracle/max/asm/NumUtil.java Wed Oct 03 17:42:12 2012 +0200 @@ -0,0 +1,105 @@ +/* + * Copyright (c) 2011, 2011, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + */ +package com.oracle.max.asm; + +/** + * A collection of static utility functions that check ranges of numbers. + */ +public class NumUtil { + public static boolean isShiftCount(int x) { + return 0 <= x && x < 32; + } + + /** + * Determines if a given {@code int} value is the range of unsigned byte + * values. + */ + public static boolean isUByte(int x) { + return (x & 0xff) == x; + } + + /** + * Determines if a given {@code int} value is the range of signed byte + * values. + */ + public static boolean isByte(int x) { + return (byte) x == x; + } + + /** + * Determines if a given {@code long} value is the range of unsigned byte + * values. + */ + public static boolean isUByte(long x) { + return (x & 0xffL) == x; + } + + /** + * Determines if a given {@code long} value is the range of signed byte + * values. + */ + public static boolean isByte(long l) { + return (byte) l == l; + } + + /** + * Determines if a given {@code long} value is the range of unsigned int + * values. + */ + public static boolean isUInt(long x) { + return (x & 0xffffffffL) == x; + } + + /** + * Determines if a given {@code long} value is the range of signed int + * values. + */ + public static boolean isInt(long l) { + return (int) l == l; + } + + /** + * Determines if a given {@code int} value is the range of signed short + * values. + */ + public static boolean isShort(int x) { + return (short) x == x; + } + + public static boolean isUShort(int s) { + return s == (s & 0xFFFF); + } + + public static boolean is32bit(long x) { + return -0x80000000L <= x && x < 0x80000000L; + } + + public static short safeToShort(int v) { + assert isShort(v); + return (short) v; + } + + public static int roundUp(int number, int mod) { + return ((number + mod - 1) / mod) * mod; + } +}
--- a/graal/com.oracle.max.asm.amd64/src/com/oracle/max/asm/amd64/AMD64.java Wed Oct 03 16:49:51 2012 +0200 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,128 +0,0 @@ -/* - * Copyright (c) 2009, 2011, Oracle and/or its affiliates. All rights reserved. - * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. - * - * This code is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 only, as - * published by the Free Software Foundation. - * - * This code is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License - * version 2 for more details (a copy is included in the LICENSE file that - * accompanied this code). - * - * You should have received a copy of the GNU General Public License version - * 2 along with this work; if not, write to the Free Software Foundation, - * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. - * - * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA - * or visit www.oracle.com if you need additional information or have any - * questions. - */ -package com.oracle.max.asm.amd64; - -import static com.oracle.graal.api.code.Register.RegisterFlag.*; -import static com.oracle.graal.api.meta.Kind.*; -import static com.oracle.max.criutils.MemoryBarriers.*; - -import com.oracle.graal.api.code.*; -import com.oracle.graal.api.code.Register.*; - -/** - * Represents the AMD64 architecture. - */ -public class AMD64 extends Architecture { - - // General purpose CPU registers - public static final Register rax = new Register(0, 0, 8, "rax", CPU, RegisterFlag.Byte); - public static final Register rcx = new Register(1, 1, 8, "rcx", CPU, RegisterFlag.Byte); - public static final Register rdx = new Register(2, 2, 8, "rdx", CPU, RegisterFlag.Byte); - public static final Register rbx = new Register(3, 3, 8, "rbx", CPU, RegisterFlag.Byte); - public static final Register rsp = new Register(4, 4, 8, "rsp", CPU, RegisterFlag.Byte); - public static final Register rbp = new Register(5, 5, 8, "rbp", CPU, RegisterFlag.Byte); - public static final Register rsi = new Register(6, 6, 8, "rsi", CPU, RegisterFlag.Byte); - public static final Register rdi = new Register(7, 7, 8, "rdi", CPU, RegisterFlag.Byte); - - public static final Register r8 = new Register(8, 8, 8, "r8", CPU, RegisterFlag.Byte); - public static final Register r9 = new Register(9, 9, 8, "r9", CPU, RegisterFlag.Byte); - public static final Register r10 = new Register(10, 10, 8, "r10", CPU, RegisterFlag.Byte); - public static final Register r11 = new Register(11, 11, 8, "r11", CPU, RegisterFlag.Byte); - public static final Register r12 = new Register(12, 12, 8, "r12", CPU, RegisterFlag.Byte); - public static final Register r13 = new Register(13, 13, 8, "r13", CPU, RegisterFlag.Byte); - public static final Register r14 = new Register(14, 14, 8, "r14", CPU, RegisterFlag.Byte); - public static final Register r15 = new Register(15, 15, 8, "r15", CPU, RegisterFlag.Byte); - - public static final Register[] cpuRegisters = { - rax, rcx, rdx, rbx, rsp, rbp, rsi, rdi, - r8, r9, r10, r11, r12, r13, r14, r15 - }; - - // XMM registers - public static final Register xmm0 = new Register(16, 0, 8, "xmm0", FPU); - public static final Register xmm1 = new Register(17, 1, 8, "xmm1", FPU); - public static final Register xmm2 = new Register(18, 2, 8, "xmm2", FPU); - public static final Register xmm3 = new Register(19, 3, 8, "xmm3", FPU); - public static final Register xmm4 = new Register(20, 4, 8, "xmm4", FPU); - public static final Register xmm5 = new Register(21, 5, 8, "xmm5", FPU); - public static final Register xmm6 = new Register(22, 6, 8, "xmm6", FPU); - public static final Register xmm7 = new Register(23, 7, 8, "xmm7", FPU); - - public static final Register xmm8 = new Register(24, 8, 8, "xmm8", FPU); - public static final Register xmm9 = new Register(25, 9, 8, "xmm9", FPU); - public static final Register xmm10 = new Register(26, 10, 8, "xmm10", FPU); - public static final Register xmm11 = new Register(27, 11, 8, "xmm11", FPU); - public static final Register xmm12 = new Register(28, 12, 8, "xmm12", FPU); - public static final Register xmm13 = new Register(29, 13, 8, "xmm13", FPU); - public static final Register xmm14 = new Register(30, 14, 8, "xmm14", FPU); - public static final Register xmm15 = new Register(31, 15, 8, "xmm15", FPU); - - public static final Register[] xmmRegisters = { - xmm0, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7, - xmm8, xmm9, xmm10, xmm11, xmm12, xmm13, xmm14, xmm15 - }; - - public static final Register[] cpuxmmRegisters = { - rax, rcx, rdx, rbx, rsp, rbp, rsi, rdi, - r8, r9, r10, r11, r12, r13, r14, r15, - xmm0, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7, - xmm8, xmm9, xmm10, xmm11, xmm12, xmm13, xmm14, xmm15 - }; - - /** - * Register used to construct an instruction-relative address. - */ - public static final Register rip = new Register(32, -1, 0, "rip"); - - public static final Register[] allRegisters = { - rax, rcx, rdx, rbx, rsp, rbp, rsi, rdi, - r8, r9, r10, r11, r12, r13, r14, r15, - xmm0, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7, - xmm8, xmm9, xmm10, xmm11, xmm12, xmm13, xmm14, xmm15, - rip - }; - - public static final RegisterValue RSP = rsp.asValue(Long); - - public AMD64() { - super("AMD64", - 8, - ByteOrder.LittleEndian, - allRegisters, - LOAD_STORE | STORE_STORE, - 1, - r15.encoding + 1, - 8); - } - - @Override - public boolean isX86() { - return true; - } - - @Override - public boolean twoOperandMode() { - return true; - } - -}
--- a/graal/com.oracle.max.asm.amd64/src/com/oracle/max/asm/amd64/AMD64AsmOptions.java Wed Oct 03 16:49:51 2012 +0200 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,32 +0,0 @@ -/* - * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved. - * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. - * - * This code is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 only, as - * published by the Free Software Foundation. - * - * This code is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License - * version 2 for more details (a copy is included in the LICENSE file that - * accompanied this code). - * - * You should have received a copy of the GNU General Public License version - * 2 along with this work; if not, write to the Free Software Foundation, - * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. - * - * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA - * or visit www.oracle.com if you need additional information or have any - * questions. - */ -package com.oracle.max.asm.amd64; - -public class AMD64AsmOptions { - public static int Atomics = 0; - public static boolean UseNormalNop = true; - public static boolean UseAddressNop = true; - public static boolean UseIncDec = false; - public static boolean UseXmmLoadAndClearUpper = true; - public static boolean UseXmmRegToRegMoveAll = false; -}
--- a/graal/com.oracle.max.asm.amd64/src/com/oracle/max/asm/amd64/AMD64Assembler.java Wed Oct 03 16:49:51 2012 +0200 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,3034 +0,0 @@ -/* - * Copyright (c) 2009, 2012, Oracle and/or its affiliates. All rights reserved. - * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. - * - * This code is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 only, as - * published by the Free Software Foundation. - * - * This code is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License - * version 2 for more details (a copy is included in the LICENSE file that - * accompanied this code). - * - * You should have received a copy of the GNU General Public License version - * 2 along with this work; if not, write to the Free Software Foundation, - * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. - * - * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA - * or visit www.oracle.com if you need additional information or have any - * questions. - */ -package com.oracle.max.asm.amd64; - -import static com.oracle.graal.api.code.ValueUtil.*; -import static com.oracle.max.asm.NumUtil.*; -import static com.oracle.max.asm.amd64.AMD64.*; -import static com.oracle.max.asm.amd64.AMD64AsmOptions.*; -import static com.oracle.max.criutils.MemoryBarriers.*; - -import com.oracle.graal.api.code.*; -import com.oracle.graal.api.meta.*; -import com.oracle.max.asm.*; - -/** - * This class implements an assembler that can encode most X86 instructions. - */ -public class AMD64Assembler extends AbstractAssembler { - /** - * The kind for pointers and raw registers. Since we know we are 64 bit here, we can hardcode it. - */ - private static final Kind Word = Kind.Long; - - private static final int MinEncodingNeedsRex = 8; - - /** - * The x86 condition codes used for conditional jumps/moves. - */ - public enum ConditionFlag { - zero(0x4, "|zero|"), - notZero(0x5, "|nzero|"), - equal(0x4, "="), - notEqual(0x5, "!="), - less(0xc, "<"), - lessEqual(0xe, "<="), - greater(0xf, ">"), - greaterEqual(0xd, ">="), - below(0x2, "|<|"), - belowEqual(0x6, "|<=|"), - above(0x7, "|>|"), - aboveEqual(0x3, "|>=|"), - overflow(0x0, "|of|"), - noOverflow(0x1, "|nof|"), - carrySet(0x2, "|carry|"), - carryClear(0x3, "|ncarry|"), - negative(0x8, "|neg|"), - positive(0x9, "|pos|"), - parity(0xa, "|par|"), - noParity(0xb, "|npar|"); - - public final int value; - public final String operator; - - private ConditionFlag(int value, String operator) { - this.value = value; - this.operator = operator; - } - - public ConditionFlag negate() { - switch(this) { - case zero: return notZero; - case notZero: return zero; - case equal: return notEqual; - case notEqual: return equal; - case less: return greaterEqual; - case lessEqual: return greater; - case greater: return lessEqual; - case greaterEqual: return less; - case below: return aboveEqual; - case belowEqual: return above; - case above: return belowEqual; - case aboveEqual: return below; - case overflow: return noOverflow; - case noOverflow: return overflow; - case carrySet: return carryClear; - case carryClear: return carrySet; - case negative: return positive; - case positive: return negative; - case parity: return noParity; - case noParity: return parity; - } - throw new IllegalArgumentException(); - } - } - - /** - * Constants for X86 prefix bytes. - */ - private static class Prefix { - private static final int REX = 0x40; - private static final int REXB = 0x41; - private static final int REXX = 0x42; - private static final int REXXB = 0x43; - private static final int REXR = 0x44; - private static final int REXRB = 0x45; - private static final int REXRX = 0x46; - private static final int REXRXB = 0x47; - private static final int REXW = 0x48; - private static final int REXWB = 0x49; - private static final int REXWX = 0x4A; - private static final int REXWXB = 0x4B; - private static final int REXWR = 0x4C; - private static final int REXWRB = 0x4D; - private static final int REXWRX = 0x4E; - private static final int REXWRXB = 0x4F; - } - - /** - * The register to which {@link Register#Frame} and {@link Register#CallerFrame} are bound. - */ - public final Register frameRegister; - - /** - * Constructs an assembler for the AMD64 architecture. - * - * @param registerConfig the register configuration used to bind {@link Register#Frame} and - * {@link Register#CallerFrame} to physical registers. This value can be null if this assembler - * instance will not be used to assemble instructions using these logical registers. - */ - public AMD64Assembler(TargetDescription target, RegisterConfig registerConfig) { - super(target); - this.frameRegister = registerConfig == null ? null : registerConfig.getFrameRegister(); - } - - private static int encode(Register r) { - assert r.encoding < 16 && r.encoding >= 0 : "encoding out of range: " + r.encoding; - return r.encoding & 0x7; - } - - private void emitArithB(int op1, int op2, Register dst, int imm8) { - assert dst.isByte() : "must have byte register"; - assert isUByte(op1) && isUByte(op2) : "wrong opcode"; - assert isUByte(imm8) : "not a byte"; - assert (op1 & 0x01) == 0 : "should be 8bit operation"; - emitByte(op1); - emitByte(op2 | encode(dst)); - emitByte(imm8); - } - - private void emitArith(int op1, int op2, Register dst, int imm32) { - assert isUByte(op1) && isUByte(op2) : "wrong opcode"; - assert (op1 & 0x01) == 1 : "should be 32bit operation"; - assert (op1 & 0x02) == 0 : "sign-extension bit should not be set"; - if (isByte(imm32)) { - emitByte(op1 | 0x02); // set sign bit - emitByte(op2 | encode(dst)); - emitByte(imm32 & 0xFF); - } else { - emitByte(op1); - emitByte(op2 | encode(dst)); - emitInt(imm32); - } - } - - // immediate-to-memory forms - private void emitArithOperand(int op1, Register rm, Address adr, int imm32) { - assert (op1 & 0x01) == 1 : "should be 32bit operation"; - assert (op1 & 0x02) == 0 : "sign-extension bit should not be set"; - if (isByte(imm32)) { - emitByte(op1 | 0x02); // set sign bit - emitOperandHelper(rm, adr); - emitByte(imm32 & 0xFF); - } else { - emitByte(op1); - emitOperandHelper(rm, adr); - emitInt(imm32); - } - } - - private void emitArith(int op1, int op2, Register dst, Register src) { - assert isUByte(op1) && isUByte(op2) : "wrong opcode"; - emitByte(op1); - emitByte(op2 | encode(dst) << 3 | encode(src)); - } - - private void emitOperandHelper(Register reg, Address addr) { - Register base = isLegal(addr.getBase()) ? asRegister(addr.getBase()) : Register.None; - Register index = isLegal(addr.getIndex()) ? asRegister(addr.getIndex()) : Register.None; - - Address.Scale scale = addr.getScale(); - int disp = addr.getDisplacement(); - - if (base == Register.Frame) { - assert frameRegister != null : "cannot use register " + Register.Frame + " in assembler with null register configuration"; - base = frameRegister; -// } else if (base == Register.CallerFrame) { -// assert frameRegister != null : "cannot use register " + Register.Frame + " in assembler with null register configuration"; -// base = frameRegister; -// disp += targetMethod.frameSize() + 8; - } - - // Encode the registers as needed in the fields they are used in - - assert reg != Register.None; - int regenc = encode(reg) << 3; - - if (base == AMD64.rip) { - // [00 000 101] disp32 - emitByte(0x05 | regenc); - emitInt(disp); - } else if (addr == Address.Placeholder) { - // [00 000 101] disp32 - emitByte(0x05 | regenc); - emitInt(0); - - } else if (base.isValid()) { - int baseenc = base.isValid() ? encode(base) : 0; - if (index.isValid()) { - int indexenc = encode(index) << 3; - // [base + indexscale + disp] - if (disp == 0 && base != rbp && (base != r13)) { - // [base + indexscale] - // [00 reg 100][ss index base] - assert index != rsp : "illegal addressing mode"; - emitByte(0x04 | regenc); - emitByte(scale.log2 << 6 | indexenc | baseenc); - } else if (isByte(disp)) { - // [base + indexscale + imm8] - // [01 reg 100][ss index base] imm8 - assert index != rsp : "illegal addressing mode"; - emitByte(0x44 | regenc); - emitByte(scale.log2 << 6 | indexenc | baseenc); - emitByte(disp & 0xFF); - } else { - // [base + indexscale + disp32] - // [10 reg 100][ss index base] disp32 - assert index != rsp : "illegal addressing mode"; - emitByte(0x84 | regenc); - emitByte(scale.log2 << 6 | indexenc | baseenc); - emitInt(disp); - } - } else if (base == rsp || (base == r12)) { - // [rsp + disp] - if (disp == 0) { - // [rsp] - // [00 reg 100][00 100 100] - emitByte(0x04 | regenc); - emitByte(0x24); - } else if (isByte(disp)) { - // [rsp + imm8] - // [01 reg 100][00 100 100] disp8 - emitByte(0x44 | regenc); - emitByte(0x24); - emitByte(disp & 0xFF); - } else { - // [rsp + imm32] - // [10 reg 100][00 100 100] disp32 - emitByte(0x84 | regenc); - emitByte(0x24); - emitInt(disp); - } - } else { - // [base + disp] - assert base != rsp && (base != r12) : "illegal addressing mode"; - if (disp == 0 && base != rbp && (base != r13)) { - // [base] - // [00 reg base] - emitByte(0x00 | regenc | baseenc); - } else if (isByte(disp)) { - // [base + disp8] - // [01 reg base] disp8 - emitByte(0x40 | regenc | baseenc); - emitByte(disp & 0xFF); - } else { - // [base + disp32] - // [10 reg base] disp32 - emitByte(0x80 | regenc | baseenc); - emitInt(disp); - } - } - } else { - if (index.isValid()) { - int indexenc = encode(index) << 3; - // [indexscale + disp] - // [00 reg 100][ss index 101] disp32 - assert index != rsp : "illegal addressing mode"; - emitByte(0x04 | regenc); - emitByte(scale.log2 << 6 | indexenc | 0x05); - emitInt(disp); - } else { - // [disp] ABSOLUTE - // [00 reg 100][00 100 101] disp32 - emitByte(0x04 | regenc); - emitByte(0x25); - emitInt(disp); - } - } - } - - public final void addl(Address dst, int imm32) { - prefix(dst); - emitArithOperand(0x81, rax, dst, imm32); - } - - public final void addl(Address dst, Register src) { - prefix(dst, src); - emitByte(0x01); - emitOperandHelper(src, dst); - } - - public final void addl(Register dst, int imm32) { - prefix(dst); - emitArith(0x81, 0xC0, dst, imm32); - } - - public final void addl(Register dst, Address src) { - prefix(src, dst); - emitByte(0x03); - emitOperandHelper(dst, src); - } - - public final void addl(Register dst, Register src) { - prefixAndEncode(dst.encoding, src.encoding); - emitArith(0x03, 0xC0, dst, src); - } - - private void addrNop4() { - // 4 bytes: NOP DWORD PTR [EAX+0] - emitByte(0x0F); - emitByte(0x1F); - emitByte(0x40); // emitRm(cbuf, 0x1, EAXEnc, EAXEnc); - emitByte(0); // 8-bits offset (1 byte) - } - - private void addrNop5() { - // 5 bytes: NOP DWORD PTR [EAX+EAX*0+0] 8-bits offset - emitByte(0x0F); - emitByte(0x1F); - emitByte(0x44); // emitRm(cbuf, 0x1, EAXEnc, 0x4); - emitByte(0x00); // emitRm(cbuf, 0x0, EAXEnc, EAXEnc); - emitByte(0); // 8-bits offset (1 byte) - } - - private void addrNop7() { - // 7 bytes: NOP DWORD PTR [EAX+0] 32-bits offset - emitByte(0x0F); - emitByte(0x1F); - emitByte(0x80); // emitRm(cbuf, 0x2, EAXEnc, EAXEnc); - emitInt(0); // 32-bits offset (4 bytes) - } - - private void addrNop8() { - // 8 bytes: NOP DWORD PTR [EAX+EAX*0+0] 32-bits offset - emitByte(0x0F); - emitByte(0x1F); - emitByte(0x84); // emitRm(cbuf, 0x2, EAXEnc, 0x4); - emitByte(0x00); // emitRm(cbuf, 0x0, EAXEnc, EAXEnc); - emitInt(0); // 32-bits offset (4 bytes) - } - - public final void addsd(Register dst, Register src) { - assert dst.isFpu() && src.isFpu(); - emitByte(0xF2); - int encode = prefixAndEncode(dst.encoding, src.encoding); - emitByte(0x0F); - emitByte(0x58); - emitByte(0xC0 | encode); - } - - public final void addsd(Register dst, Address src) { - assert dst.isFpu(); - emitByte(0xF2); - prefix(src, dst); - emitByte(0x0F); - emitByte(0x58); - emitOperandHelper(dst, src); - } - - public final void addss(Register dst, Register src) { - assert dst.isFpu() && src.isFpu(); - emitByte(0xF3); - int encode = prefixAndEncode(dst.encoding, src.encoding); - emitByte(0x0F); - emitByte(0x58); - emitByte(0xC0 | encode); - } - - public final void addss(Register dst, Address src) { - assert dst.isFpu(); - emitByte(0xF3); - prefix(src, dst); - emitByte(0x0F); - emitByte(0x58); - emitOperandHelper(dst, src); - } - - public final void andl(Register dst, int imm32) { - prefix(dst); - emitArith(0x81, 0xE0, dst, imm32); - } - - public final void andl(Register dst, Address src) { - prefix(src, dst); - emitByte(0x23); - emitOperandHelper(dst, src); - } - - public final void andl(Register dst, Register src) { - prefixAndEncode(dst.encoding, src.encoding); - emitArith(0x23, 0xC0, dst, src); - } - - public final void bsfq(Register dst, Register src) { - int encode = prefixqAndEncode(dst.encoding, src.encoding); - emitByte(0x0F); - emitByte(0xBC); - emitByte(0xC0 | encode); - } - - public final void bsfq(Register dst, Address src) { - prefixq(src, dst); - emitByte(0xBC); - emitOperandHelper(dst, src); - } - - public final void bsrq(Register dst, Register src) { - int encode = prefixqAndEncode(dst.encoding, src.encoding); - emitByte(0x0F); - emitByte(0xBD); - emitByte(0xC0 | encode); - } - - - public final void bsrq(Register dst, Address src) { - prefixq(src, dst); - emitByte(0xBD); - emitOperandHelper(dst, src); - } - - public final void bsrl(Register dst, Register src) { - int encode = prefixAndEncode(dst.encoding, src.encoding); - emitByte(0x0F); - emitByte(0xBD); - emitByte(0xC0 | encode); - } - - - public final void bsrl(Register dst, Address src) { - prefix(src, dst); - emitByte(0xBD); - emitOperandHelper(dst, src); - } - - public final void bswapl(Register reg) { // bswap - int encode = prefixAndEncode(reg.encoding); - emitByte(0x0F); - emitByte(0xC8 | encode); - } - - public final void btli(Address src, int imm8) { - prefixq(src); - emitByte(0x0F); - emitByte(0xBA); - emitOperandHelper(rsp, src); - emitByte(imm8); - } - - public final void cdql() { - emitByte(0x99); - } - - public final void cmovl(ConditionFlag cc, Register dst, Register src) { - int encode = prefixAndEncode(dst.encoding, src.encoding); - emitByte(0x0F); - emitByte(0x40 | cc.value); - emitByte(0xC0 | encode); - } - - public final void cmovl(ConditionFlag cc, Register dst, Address src) { - prefix(src, dst); - emitByte(0x0F); - emitByte(0x40 | cc.value); - emitOperandHelper(dst, src); - } - - public final void cmpb(Address dst, int imm8) { - prefix(dst); - emitByte(0x80); - emitOperandHelper(rdi, dst); - emitByte(imm8); - } - - public final void cmpl(Address dst, int imm32) { - prefix(dst); - emitByte(0x81); - emitOperandHelper(rdi, dst); - emitInt(imm32); - } - - public final void cmpl(Register dst, int imm32) { - prefix(dst); - emitArith(0x81, 0xF8, dst, imm32); - } - - public final void cmpl(Register dst, Register src) { - prefixAndEncode(dst.encoding, src.encoding); - emitArith(0x3B, 0xC0, dst, src); - } - - public final void cmpl(Register dst, Address src) { - prefix(src, dst); - emitByte(0x3B); - emitOperandHelper(dst, src); - } - - // The 32-bit cmpxchg compares the value at adr with the contents of X86.rax, - // and stores reg into adr if so; otherwise, the value at adr is loaded into X86.rax,. - // The ZF is set if the compared values were equal, and cleared otherwise. - public final void cmpxchgl(Register reg, Address adr) { // cmpxchg - if ((Atomics & 2) != 0) { - // caveat: no instructionmark, so this isn't relocatable. - // Emit a synthetic, non-atomic, CAS equivalent. - // Beware. The synthetic form sets all ICCs, not just ZF. - // cmpxchg r,[m] is equivalent to X86.rax, = CAS (m, X86.rax, r) - cmpl(rax, adr); - movl(rax, adr); - if (reg != rax) { - Label l = new Label(); - jcc(ConditionFlag.notEqual, l); - movl(adr, reg); - bind(l); - } - } else { - - prefix(adr, reg); - emitByte(0x0F); - emitByte(0xB1); - emitOperandHelper(reg, adr); - } - } - - public final void comisd(Register dst, Address src) { - assert dst.isFpu(); - // NOTE: dbx seems to decode this as comiss even though the - // 0x66 is there. Strangly ucomisd comes out correct - emitByte(0x66); - comiss(dst, src); - } - - public final void comiss(Register dst, Address src) { - assert dst.isFpu(); - - prefix(src, dst); - emitByte(0x0F); - emitByte(0x2F); - emitOperandHelper(dst, src); - } - - public final void cvtdq2pd(Register dst, Register src) { - assert dst.isFpu(); - assert src.isFpu(); - - emitByte(0xF3); - int encode = prefixAndEncode(dst.encoding, src.encoding); - emitByte(0x0F); - emitByte(0xE6); - emitByte(0xC0 | encode); - } - - public final void cvtdq2ps(Register dst, Register src) { - assert dst.isFpu(); - assert src.isFpu(); - int encode = prefixAndEncode(dst.encoding, src.encoding); - emitByte(0x0F); - emitByte(0x5B); - emitByte(0xC0 | encode); - } - - public final void cvtsd2ss(Register dst, Register src) { - assert dst.isFpu(); - assert src.isFpu(); - emitByte(0xF2); - int encode = prefixAndEncode(dst.encoding, src.encoding); - emitByte(0x0F); - emitByte(0x5A); - emitByte(0xC0 | encode); - } - - public final void cvtsi2sdl(Register dst, Register src) { - assert dst.isFpu(); - emitByte(0xF2); - int encode = prefixAndEncode(dst.encoding, src.encoding); - emitByte(0x0F); - emitByte(0x2A); - emitByte(0xC0 | encode); - } - - public final void cvtsi2ssl(Register dst, Register src) { - assert dst.isFpu(); - emitByte(0xF3); - int encode = prefixAndEncode(dst.encoding, src.encoding); - emitByte(0x0F); - emitByte(0x2A); - emitByte(0xC0 | encode); - } - - public final void cvtss2sd(Register dst, Register src) { - assert dst.isFpu(); - assert src.isFpu(); - emitByte(0xF3); - int encode = prefixAndEncode(dst.encoding, src.encoding); - emitByte(0x0F); - emitByte(0x5A); - emitByte(0xC0 | encode); - } - - public final void cvttsd2sil(Register dst, Register src) { - assert src.isFpu(); - emitByte(0xF2); - int encode = prefixAndEncode(dst.encoding, src.encoding); - emitByte(0x0F); - emitByte(0x2C); - emitByte(0xC0 | encode); - } - - public final void cvttss2sil(Register dst, Register src) { - assert src.isFpu(); - emitByte(0xF3); - int encode = prefixAndEncode(dst.encoding, src.encoding); - emitByte(0x0F); - emitByte(0x2C); - emitByte(0xC0 | encode); - } - - public final void decl(Address dst) { - // Don't use it directly. Use Macrodecrement() instead. - prefix(dst); - emitByte(0xFF); - emitOperandHelper(rcx, dst); - } - - public final void divsd(Register dst, Address src) { - assert dst.isFpu(); - emitByte(0xF2); - prefix(src, dst); - emitByte(0x0F); - emitByte(0x5E); - emitOperandHelper(dst, src); - } - - public final void divsd(Register dst, Register src) { - assert dst.isFpu(); - assert src.isFpu(); - emitByte(0xF2); - int encode = prefixAndEncode(dst.encoding, src.encoding); - emitByte(0x0F); - emitByte(0x5E); - emitByte(0xC0 | encode); - } - - public final void divss(Register dst, Address src) { - assert dst.isFpu(); - emitByte(0xF3); - prefix(src, dst); - emitByte(0x0F); - emitByte(0x5E); - emitOperandHelper(dst, src); - } - - public final void divss(Register dst, Register src) { - assert dst.isFpu(); - assert src.isFpu(); - emitByte(0xF3); - int encode = prefixAndEncode(dst.encoding, src.encoding); - emitByte(0x0F); - emitByte(0x5E); - emitByte(0xC0 | encode); - } - - public final void hlt() { - emitByte(0xF4); - } - - public final void idivl(Register src) { - int encode = prefixAndEncode(src.encoding); - emitByte(0xF7); - emitByte(0xF8 | encode); - } - - public final void divl(Register src) { - int encode = prefixAndEncode(src.encoding); - emitByte(0xF7); - emitByte(0xF0 | encode); - } - - public final void imull(Register dst, Register src) { - int encode = prefixAndEncode(dst.encoding, src.encoding); - emitByte(0x0F); - emitByte(0xAF); - emitByte(0xC0 | encode); - } - - public final void imull(Register dst, Register src, int value) { - int encode = prefixAndEncode(dst.encoding, src.encoding); - if (isByte(value)) { - emitByte(0x6B); - emitByte(0xC0 | encode); - emitByte(value & 0xFF); - } else { - emitByte(0x69); - emitByte(0xC0 | encode); - emitInt(value); - } - } - - public final void incl(Address dst) { - // Don't use it directly. Use Macroincrement() instead. - prefix(dst); - emitByte(0xFF); - emitOperandHelper(rax, dst); - } - - public final void jcc(ConditionFlag cc, int jumpTarget, boolean forceDisp32) { - int shortSize = 2; - int longSize = 6; - long disp = jumpTarget - codeBuffer.position(); - if (!forceDisp32 && isByte(disp - shortSize)) { - // 0111 tttn #8-bit disp - emitByte(0x70 | cc.value); - emitByte((int) ((disp - shortSize) & 0xFF)); - } else { - // 0000 1111 1000 tttn #32-bit disp - assert isInt(disp - longSize) : "must be 32bit offset (call4)"; - emitByte(0x0F); - emitByte(0x80 | cc.value); - emitInt((int) (disp - longSize)); - } - } - - public final void jcc(ConditionFlag cc, Label l) { - assert (0 <= cc.value) && (cc.value < 16) : "illegal cc"; - if (l.isBound()) { - jcc(cc, l.position(), false); - } else { - // Note: could eliminate cond. jumps to this jump if condition - // is the same however, seems to be rather unlikely case. - // Note: use jccb() if label to be bound is very close to get - // an 8-bit displacement - l.addPatchAt(codeBuffer.position()); - emitByte(0x0F); - emitByte(0x80 | cc.value); - emitInt(0); - } - - } - - public final void jccb(ConditionFlag cc, Label l) { - if (l.isBound()) { - int shortSize = 2; - int entry = l.position(); - assert isByte(entry - (codeBuffer.position() + shortSize)) : "Dispacement too large for a short jmp"; - long disp = entry - codeBuffer.position(); - // 0111 tttn #8-bit disp - emitByte(0x70 | cc.value); - emitByte((int) ((disp - shortSize) & 0xFF)); - } else { - - l.addPatchAt(codeBuffer.position()); - emitByte(0x70 | cc.value); - emitByte(0); - } - } - - public final void jmp(Address adr) { - prefix(adr); - emitByte(0xFF); - emitOperandHelper(rsp, adr); - } - - public final void jmp(int jumpTarget, boolean forceDisp32) { - int shortSize = 2; - int longSize = 5; - long disp = jumpTarget - codeBuffer.position(); - if (!forceDisp32 && isByte(disp - shortSize)) { - emitByte(0xEB); - emitByte((int) ((disp - shortSize) & 0xFF)); - } else { - emitByte(0xE9); - emitInt((int) (disp - longSize)); - } - } - - @Override - public final void jmp(Label l) { - if (l.isBound()) { - jmp(l.position(), false); - } else { - // By default, forward jumps are always 32-bit displacements, since - // we can't yet know where the label will be bound. If you're sure that - // the forward jump will not run beyond 256 bytes, use jmpb to - // force an 8-bit displacement. - - l.addPatchAt(codeBuffer.position()); - emitByte(0xE9); - emitInt(0); - } - } - - public final void jmp(Register entry) { - int encode = prefixAndEncode(entry.encoding); - emitByte(0xFF); - emitByte(0xE0 | encode); - } - - public final void jmpb(Label l) { - if (l.isBound()) { - int shortSize = 2; - int entry = l.position(); - assert isByte((entry - codeBuffer.position()) + shortSize) : "Dispacement too large for a short jmp"; - long offs = entry - codeBuffer.position(); - emitByte(0xEB); - emitByte((int) ((offs - shortSize) & 0xFF)); - } else { - - l.addPatchAt(codeBuffer.position()); - emitByte(0xEB); - emitByte(0); - } - } - - public final void leaq(Register dst, Address src) { - prefixq(src, dst); - emitByte(0x8D); - emitOperandHelper(dst, src); - } - - public final void enter(int imm16, int imm8) { - emitByte(0xC8); - emitShort(imm16); - emitByte(imm8); - } - - public final void leave() { - emitByte(0xC9); - } - - public final void lock() { - if ((Atomics & 1) != 0) { - // Emit either nothing, a NOP, or a NOP: prefix - emitByte(0x90); - } else { - emitByte(0xF0); - } - } - - // Emit mfence instruction - public final void mfence() { - emitByte(0x0F); - emitByte(0xAE); - emitByte(0xF0); - } - - public final void mov(Register dst, Register src) { - movq(dst, src); - } - - public final void movapd(Register dst, Register src) { - assert dst.isFpu(); - assert src.isFpu(); - int dstenc = dst.encoding; - int srcenc = src.encoding; - emitByte(0x66); - if (dstenc < 8) { - if (srcenc >= 8) { - emitByte(Prefix.REXB); - srcenc -= 8; - } - } else { - if (srcenc < 8) { - emitByte(Prefix.REXR); - } else { - emitByte(Prefix.REXRB); - srcenc -= 8; - } - dstenc -= 8; - } - emitByte(0x0F); - emitByte(0x28); - emitByte(0xC0 | dstenc << 3 | srcenc); - } - - public final void movaps(Register dst, Register src) { - assert dst.isFpu(); - assert src.isFpu(); - int dstenc = dst.encoding; - int srcenc = src.encoding; - if (dstenc < 8) { - if (srcenc >= 8) { - emitByte(Prefix.REXB); - srcenc -= 8; - } - } else { - if (srcenc < 8) { - emitByte(Prefix.REXR); - } else { - emitByte(Prefix.REXRB); - srcenc -= 8; - } - dstenc -= 8; - } - emitByte(0x0F); - emitByte(0x28); - emitByte(0xC0 | dstenc << 3 | srcenc); - } - - public final void movb(Register dst, Address src) { - prefix(src, dst); // , true) - emitByte(0x8A); - emitOperandHelper(dst, src); - } - - public final void movb(Address dst, int imm8) { - prefix(dst); - emitByte(0xC6); - emitOperandHelper(rax, dst); - emitByte(imm8); - } - - public final void movb(Address dst, Register src) { - assert src.isByte() : "must have byte register"; - prefix(dst, src); // , true) - emitByte(0x88); - emitOperandHelper(src, dst); - } - - public final void movdl(Register dst, Register src) { - if (dst.isFpu()) { - assert !src.isFpu() : "does this hold?"; - emitByte(0x66); - int encode = prefixAndEncode(dst.encoding, src.encoding); - emitByte(0x0F); - emitByte(0x6E); - emitByte(0xC0 | encode); - } else if (src.isFpu()) { - assert !dst.isFpu(); - emitByte(0x66); - // swap src/dst to get correct prefix - int encode = prefixAndEncode(src.encoding, dst.encoding); - emitByte(0x0F); - emitByte(0x7E); - emitByte(0xC0 | encode); - } - } - - public final void movdqa(Register dst, Address src) { - assert dst.isFpu(); - emitByte(0x66); - prefix(src, dst); - emitByte(0x0F); - emitByte(0x6F); - emitOperandHelper(dst, src); - } - - public final void movdqa(Register dst, Register src) { - assert dst.isFpu(); - emitByte(0x66); - int encode = prefixqAndEncode(dst.encoding, src.encoding); - emitByte(0x0F); - emitByte(0x6F); - emitByte(0xC0 | encode); - } - - public final void movdqa(Address dst, Register src) { - assert src.isFpu(); - emitByte(0x66); - prefix(dst, src); - emitByte(0x0F); - emitByte(0x7F); - emitOperandHelper(src, dst); - } - - public final void movdqu(Register dst, Address src) { - assert dst.isFpu(); - emitByte(0xF3); - prefix(src, dst); - emitByte(0x0F); - emitByte(0x6F); - emitOperandHelper(dst, src); - } - - public final void movdqu(Register dst, Register src) { - assert dst.isFpu(); - assert src.isFpu(); - - emitByte(0xF3); - int encode = prefixqAndEncode(dst.encoding, src.encoding); - emitByte(0x0F); - emitByte(0x6F); - emitByte(0xC0 | encode); - } - - public final void movdqu(Address dst, Register src) { - assert src.isFpu(); - - emitByte(0xF3); - prefix(dst, src); - emitByte(0x0F); - emitByte(0x7F); - emitOperandHelper(src, dst); - } - - public final void movl(Register dst, int imm32) { - int encode = prefixAndEncode(dst.encoding); - emitByte(0xB8 | encode); - emitInt(imm32); - } - - public final void movl(Register dst, Register src) { - int encode = prefixAndEncode(dst.encoding, src.encoding); - emitByte(0x8B); - emitByte(0xC0 | encode); - } - - public final void movl(Register dst, Address src) { - prefix(src, dst); - emitByte(0x8B); - emitOperandHelper(dst, src); - } - - public final void movl(Address dst, int imm32) { - prefix(dst); - emitByte(0xC7); - emitOperandHelper(rax, dst); - emitInt(imm32); - } - - public final void movl(Address dst, Register src) { - prefix(dst, src); - emitByte(0x89); - emitOperandHelper(src, dst); - } - - /** - * New CPUs require use of movsd and movss to avoid partial register stall - * when loading from memory. But for old Opteron use movlpd instead of movsd. - * The selection is done in {@link AMD64MacroAssembler#movdbl(Register, Address)} - * and {@link AMD64MacroAssembler#movflt(Register, Register)}. - */ - public final void movlpd(Register dst, Address src) { - assert dst.isFpu(); - emitByte(0x66); - prefix(src, dst); - emitByte(0x0F); - emitByte(0x12); - emitOperandHelper(dst, src); - } - - public final void movlpd(Address dst, Register src) { - assert src.isFpu(); - emitByte(0x66); - prefix(dst, src); - emitByte(0x0F); - emitByte(0x13); - emitOperandHelper(src, dst); - } - - public final void movq(Register dst, Address src) { - if (dst.isFpu()) { - emitByte(0xF3); - prefixq(src, dst); - emitByte(0x0F); - emitByte(0x7E); - emitOperandHelper(dst, src); - } else { - prefixq(src, dst); - emitByte(0x8B); - emitOperandHelper(dst, src); - } - } - - public final void movq(Register dst, Register src) { - int encode = prefixqAndEncode(dst.encoding, src.encoding); - emitByte(0x8B); - emitByte(0xC0 | encode); - } - - public final void movq(Address dst, Register src) { - if (src.isFpu()) { - emitByte(0x66); - prefixq(dst, src); - emitByte(0x0F); - emitByte(0xD6); - emitOperandHelper(src, dst); - } else { - prefixq(dst, src); - emitByte(0x89); - emitOperandHelper(src, dst); - } - } - - public final void movsxb(Register dst, Address src) { // movsxb - prefix(src, dst); - emitByte(0x0F); - emitByte(0xBE); - emitOperandHelper(dst, src); - } - - public final void movsxb(Register dst, Register src) { // movsxb - int encode = prefixAndEncode(dst.encoding, src.encoding, true); - emitByte(0x0F); - emitByte(0xBE); - emitByte(0xC0 | encode); - } - - public final void movsd(Register dst, Register src) { - assert dst.isFpu(); - assert src.isFpu(); - emitByte(0xF2); - int encode = prefixAndEncode(dst.encoding, src.encoding); - emitByte(0x0F); - emitByte(0x10); - emitByte(0xC0 | encode); - } - - public final void movsd(Register dst, Address src) { - assert dst.isFpu(); - emitByte(0xF2); - prefix(src, dst); - emitByte(0x0F); - emitByte(0x10); - emitOperandHelper(dst, src); - } - - public final void movsd(Address dst, Register src) { - assert src.isFpu(); - emitByte(0xF2); - prefix(dst, src); - emitByte(0x0F); - emitByte(0x11); - emitOperandHelper(src, dst); - } - - public final void movss(Register dst, Register src) { - assert dst.isFpu(); - assert src.isFpu(); - emitByte(0xF3); - int encode = prefixAndEncode(dst.encoding, src.encoding); - emitByte(0x0F); - emitByte(0x10); - emitByte(0xC0 | encode); - } - - public final void movss(Register dst, Address src) { - assert dst.isFpu(); - emitByte(0xF3); - prefix(src, dst); - emitByte(0x0F); - emitByte(0x10); - emitOperandHelper(dst, src); - } - - public final void movss(Address dst, Register src) { - assert src.isFpu(); - emitByte(0xF3); - prefix(dst, src); - emitByte(0x0F); - emitByte(0x11); - emitOperandHelper(src, dst); - } - - public final void movswl(Register dst, Address src) { - prefix(src, dst); - emitByte(0x0F); - emitByte(0xBF); - emitOperandHelper(dst, src); - } - - public final void movsxw(Register dst, Register src) { // movsxw - int encode = prefixAndEncode(dst.encoding, src.encoding); - emitByte(0x0F); - emitByte(0xBF); - emitByte(0xC0 | encode); - } - - public final void movsxw(Register dst, Address src) { // movsxw - prefix(src, dst); - emitByte(0x0F); - emitByte(0xBF); - emitOperandHelper(dst, src); - } - - public final void movzxd(Register dst, Register src) { // movzxd - int encode = prefixAndEncode(dst.encoding, src.encoding); - emitByte(0x63); - emitByte(0xC0 | encode); - } - - public final void movzxd(Register dst, Address src) { // movzxd - prefix(src, dst); - emitByte(0x63); - emitOperandHelper(dst, src); - } - - public final void movw(Address dst, int imm16) { - emitByte(0x66); // switch to 16-bit mode - prefix(dst); - emitByte(0xC7); - emitOperandHelper(rax, dst); - emitShort(imm16); - } - - public final void movw(Register dst, Address src) { - emitByte(0x66); - prefix(src, dst); - emitByte(0x8B); - emitOperandHelper(dst, src); - } - - public final void movw(Address dst, Register src) { - emitByte(0x66); - prefix(dst, src); - emitByte(0x89); - emitOperandHelper(src, dst); - } - - public final void movzxb(Register dst, Address src) { // movzxb - prefix(src, dst); - emitByte(0x0F); - emitByte(0xB6); - emitOperandHelper(dst, src); - } - - public final void movzxb(Register dst, Register src) { // movzxb - int encode = prefixAndEncode(dst.encoding, src.encoding, true); - emitByte(0x0F); - emitByte(0xB6); - emitByte(0xC0 | encode); - } - - public final void movzxl(Register dst, Address src) { // movzxw - prefix(src, dst); - emitByte(0x0F); - emitByte(0xB7); - emitOperandHelper(dst, src); - } - - public final void movzxl(Register dst, Register src) { // movzxw - int encode = prefixAndEncode(dst.encoding, src.encoding); - emitByte(0x0F); - emitByte(0xB7); - emitByte(0xC0 | encode); - } - - public final void mull(Address src) { - prefix(src); - emitByte(0xF7); - emitOperandHelper(rsp, src); - } - - public final void mulsd(Register dst, Address src) { - assert dst.isFpu(); - emitByte(0xF2); - prefix(src, dst); - emitByte(0x0F); - emitByte(0x59); - emitOperandHelper(dst, src); - } - - public final void mulsd(Register dst, Register src) { - assert dst.isFpu(); - assert src.isFpu(); - - emitByte(0xF2); - int encode = prefixAndEncode(dst.encoding, src.encoding); - emitByte(0x0F); - emitByte(0x59); - emitByte(0xC0 | encode); - } - - public final void mulss(Register dst, Address src) { - assert dst.isFpu(); - - emitByte(0xF3); - prefix(src, dst); - emitByte(0x0F); - emitByte(0x59); - emitOperandHelper(dst, src); - } - - public final void mulss(Register dst, Register src) { - assert dst.isFpu(); - assert src.isFpu(); - emitByte(0xF3); - int encode = prefixAndEncode(dst.encoding, src.encoding); - emitByte(0x0F); - emitByte(0x59); - emitByte(0xC0 | encode); - } - - public final void negl(Register dst) { - int encode = prefixAndEncode(dst.encoding); - emitByte(0xF7); - emitByte(0xD8 | encode); - } - - public final void ensureUniquePC() { - nop(); - } - - public final void nop() { - nop(1); - } - - public void nop(int count) { - int i = count; - if (UseNormalNop) { - assert i > 0 : " "; - // The fancy nops aren't currently recognized by debuggers making it a - // pain to disassemble code while debugging. If assert are on clearly - // speed is not an issue so simply use the single byte traditional nop - // to do alignment. - - for (; i > 0; i--) { - emitByte(0x90); - } - return; - } - - if (UseAddressNop) { - // - // Using multi-bytes nops "0x0F 0x1F [Address]" for AMD. - // 1: 0x90 - // 2: 0x66 0x90 - // 3: 0x66 0x66 0x90 (don't use "0x0F 0x1F 0x00" - need patching safe padding) - // 4: 0x0F 0x1F 0x40 0x00 - // 5: 0x0F 0x1F 0x44 0x00 0x00 - // 6: 0x66 0x0F 0x1F 0x44 0x00 0x00 - // 7: 0x0F 0x1F 0x80 0x00 0x00 0x00 0x00 - // 8: 0x0F 0x1F 0x84 0x00 0x00 0x00 0x00 0x00 - // 9: 0x66 0x0F 0x1F 0x84 0x00 0x00 0x00 0x00 0x00 - // 10: 0x66 0x66 0x0F 0x1F 0x84 0x00 0x00 0x00 0x00 0x00 - // 11: 0x66 0x66 0x66 0x0F 0x1F 0x84 0x00 0x00 0x00 0x00 0x00 - - // The rest coding is AMD specific - use consecutive Address nops - - // 12: 0x66 0x0F 0x1F 0x44 0x00 0x00 0x66 0x0F 0x1F 0x44 0x00 0x00 - // 13: 0x0F 0x1F 0x80 0x00 0x00 0x00 0x00 0x66 0x0F 0x1F 0x44 0x00 0x00 - // 14: 0x0F 0x1F 0x80 0x00 0x00 0x00 0x00 0x0F 0x1F 0x80 0x00 0x00 0x00 0x00 - // 15: 0x0F 0x1F 0x84 0x00 0x00 0x00 0x00 0x00 0x0F 0x1F 0x80 0x00 0x00 0x00 0x00 - // 16: 0x0F 0x1F 0x84 0x00 0x00 0x00 0x00 0x00 0x0F 0x1F 0x84 0x00 0x00 0x00 0x00 0x00 - // Size prefixes (0x66) are added for larger sizes - - while (i >= 22) { - i -= 11; - emitByte(0x66); // size prefix - emitByte(0x66); // size prefix - emitByte(0x66); // size prefix - addrNop8(); - } - // Generate first nop for size between 21-12 - switch (i) { - case 21: - i -= 1; - emitByte(0x66); // size prefix - // fall through - case 20: - // fall through - case 19: - i -= 1; - emitByte(0x66); // size prefix - // fall through - case 18: - // fall through - case 17: - i -= 1; - emitByte(0x66); // size prefix - // fall through - case 16: - // fall through - case 15: - i -= 8; - addrNop8(); - break; - case 14: - case 13: - i -= 7; - addrNop7(); - break; - case 12: - i -= 6; - emitByte(0x66); // size prefix - addrNop5(); - break; - default: - assert i < 12; - } - - // Generate second nop for size between 11-1 - switch (i) { - case 11: - emitByte(0x66); // size prefix - emitByte(0x66); // size prefix - emitByte(0x66); // size prefix - addrNop8(); - break; - case 10: - emitByte(0x66); // size prefix - emitByte(0x66); // size prefix - addrNop8(); - break; - case 9: - emitByte(0x66); // size prefix - addrNop8(); - break; - case 8: - addrNop8(); - break; - case 7: - addrNop7(); - break; - case 6: - emitByte(0x66); // size prefix - addrNop5(); - break; - case 5: - addrNop5(); - break; - case 4: - addrNop4(); - break; - case 3: - // Don't use "0x0F 0x1F 0x00" - need patching safe padding - emitByte(0x66); // size prefix - emitByte(0x66); // size prefix - emitByte(0x90); // nop - break; - case 2: - emitByte(0x66); // size prefix - emitByte(0x90); // nop - break; - case 1: - emitByte(0x90); // nop - break; - default: - assert i == 0; - } - return; - } - - // Using nops with size prefixes "0x66 0x90". - // From AMD Optimization Guide: - // 1: 0x90 - // 2: 0x66 0x90 - // 3: 0x66 0x66 0x90 - // 4: 0x66 0x66 0x66 0x90 - // 5: 0x66 0x66 0x90 0x66 0x90 - // 6: 0x66 0x66 0x90 0x66 0x66 0x90 - // 7: 0x66 0x66 0x66 0x90 0x66 0x66 0x90 - // 8: 0x66 0x66 0x66 0x90 0x66 0x66 0x66 0x90 - // 9: 0x66 0x66 0x90 0x66 0x66 0x90 0x66 0x66 0x90 - // 10: 0x66 0x66 0x66 0x90 0x66 0x66 0x90 0x66 0x66 0x90 - // - while (i > 12) { - i -= 4; - emitByte(0x66); // size prefix - emitByte(0x66); - emitByte(0x66); - emitByte(0x90); // nop - } - // 1 - 12 nops - if (i > 8) { - if (i > 9) { - i -= 1; - emitByte(0x66); - } - i -= 3; - emitByte(0x66); - emitByte(0x66); - emitByte(0x90); - } - // 1 - 8 nops - if (i > 4) { - if (i > 6) { - i -= 1; - emitByte(0x66); - } - i -= 3; - emitByte(0x66); - emitByte(0x66); - emitByte(0x90); - } - switch (i) { - case 4: - emitByte(0x66); - emitByte(0x66); - emitByte(0x66); - emitByte(0x90); - break; - case 3: - emitByte(0x66); - emitByte(0x66); - emitByte(0x90); - break; - case 2: - emitByte(0x66); - emitByte(0x90); - break; - case 1: - emitByte(0x90); - break; - default: - assert i == 0; - } - } - - public final void notl(Register dst) { - int encode = prefixAndEncode(dst.encoding); - emitByte(0xF7); - emitByte(0xD0 | encode); - } - - public final void orl(Address dst, int imm32) { - prefix(dst); - emitByte(0x81); - emitOperandHelper(rcx, dst); - emitInt(imm32); - } - - public final void orl(Register dst, int imm32) { - prefix(dst); - emitArith(0x81, 0xC8, dst, imm32); - } - - public final void orl(Register dst, Address src) { - prefix(src, dst); - emitByte(0x0B); - emitOperandHelper(dst, src); - } - - public final void orl(Register dst, Register src) { - prefixAndEncode(dst.encoding, src.encoding); - emitArith(0x0B, 0xC0, dst, src); - } - - // generic - public final void pop(Register dst) { - int encode = prefixAndEncode(dst.encoding); - emitByte(0x58 | encode); - } - - public final void prefetchPrefix(Address src) { - prefix(src); - emitByte(0x0F); - } - - public final void prefetchnta(Address src) { - prefetchPrefix(src); - emitByte(0x18); - emitOperandHelper(rax, src); // 0, src - } - - public final void prefetchr(Address src) { - prefetchPrefix(src); - emitByte(0x0D); - emitOperandHelper(rax, src); // 0, src - } - - public final void prefetcht0(Address src) { - prefetchPrefix(src); - emitByte(0x18); - emitOperandHelper(rcx, src); // 1, src - - } - - public final void prefetcht1(Address src) { - prefetchPrefix(src); - emitByte(0x18); - emitOperandHelper(rdx, src); // 2, src - } - - public final void prefetcht2(Address src) { - prefetchPrefix(src); - emitByte(0x18); - emitOperandHelper(rbx, src); // 3, src - } - - public final void prefetchw(Address src) { - prefetchPrefix(src); - emitByte(0x0D); - emitOperandHelper(rcx, src); // 1, src - } - - public final void pshufd(Register dst, Register src, int mode) { - assert dst.isFpu(); - assert src.isFpu(); - assert isUByte(mode) : "invalid value"; - - emitByte(0x66); - int encode = prefixAndEncode(dst.encoding, src.encoding); - emitByte(0x0F); - emitByte(0x70); - emitByte(0xC0 | encode); - emitByte(mode & 0xFF); - } - - public final void pshufd(Register dst, Address src, int mode) { - assert dst.isFpu(); - assert isUByte(mode) : "invalid value"; - - emitByte(0x66); - prefix(src, dst); - emitByte(0x0F); - emitByte(0x70); - emitOperandHelper(dst, src); - emitByte(mode & 0xFF); - - } - - public final void pshuflw(Register dst, Register src, int mode) { - assert dst.isFpu(); - assert src.isFpu(); - assert isUByte(mode) : "invalid value"; - - emitByte(0xF2); - int encode = prefixAndEncode(dst.encoding, src.encoding); - emitByte(0x0F); - emitByte(0x70); - emitByte(0xC0 | encode); - emitByte(mode & 0xFF); - } - - public final void pshuflw(Register dst, Address src, int mode) { - assert dst.isFpu(); - assert isUByte(mode) : "invalid value"; - - emitByte(0xF2); - prefix(src, dst); // QQ new - emitByte(0x0F); - emitByte(0x70); - emitOperandHelper(dst, src); - emitByte(mode & 0xFF); - } - - public final void psrlq(Register dst, int shift) { - assert dst.isFpu(); - // HMM Table D-1 says sse2 or mmx - - int encode = prefixqAndEncode(xmm2.encoding, dst.encoding); - emitByte(0x66); - emitByte(0x0F); - emitByte(0x73); - emitByte(0xC0 | encode); - emitByte(shift); - } - - public final void punpcklbw(Register dst, Register src) { - assert dst.isFpu(); - assert src.isFpu(); - emitByte(0x66); - int encode = prefixAndEncode(dst.encoding, src.encoding); - emitByte(0x0F); - emitByte(0x60); - emitByte(0xC0 | encode); - } - - public final void push(int imm32) { - // in 64bits we push 64bits onto the stack but only - // take a 32bit immediate - emitByte(0x68); - emitInt(imm32); - } - - public final void push(Register src) { - int encode = prefixAndEncode(src.encoding); - emitByte(0x50 | encode); - } - - public final void pushf() { - emitByte(0x9C); - } - - public final void pxor(Register dst, Address src) { - assert dst.isFpu(); - - emitByte(0x66); - prefix(src, dst); - emitByte(0x0F); - emitByte(0xEF); - emitOperandHelper(dst, src); - } - - public final void pxor(Register dst, Register src) { - assert dst.isFpu(); - assert src.isFpu(); - - emitByte(0x66); - int encode = prefixAndEncode(dst.encoding, src.encoding); - emitByte(0x0F); - emitByte(0xEF); - emitByte(0xC0 | encode); - - } - - public final void rcll(Register dst, int imm8) { - assert isShiftCount(imm8) : "illegal shift count"; - int encode = prefixAndEncode(dst.encoding); - if (imm8 == 1) { - emitByte(0xD1); - emitByte(0xD0 | encode); - } else { - emitByte(0xC1); - emitByte(0xD0 | encode); - emitByte(imm8); - } - } - - public final void pause() { - emitByte(0xF3); - emitByte(0x90); - } - - // Copies data from [X86.rsi] to [X86.rdi] using X86.rcx heap words. - public final void repeatMoveWords() { - emitByte(0xF3); - emitByte(Prefix.REXW); - emitByte(0xA5); - } - - // Copies data from [X86.rsi] to [X86.rdi] using X86.rcx bytes. - public final void repeatMoveBytes() { - emitByte(0xF3); - emitByte(Prefix.REXW); - emitByte(0xA4); - } - - // sets X86.rcx pointer sized words with X86.rax, value at [edi] - // generic - public final void repSet() { // repSet - emitByte(0xF3); - // STOSQ - emitByte(Prefix.REXW); - emitByte(0xAB); - } - - // scans X86.rcx pointer sized words at [edi] for occurance of X86.rax, - // generic - public final void repneScan() { // repneScan - emitByte(0xF2); - // SCASQ - emitByte(Prefix.REXW); - emitByte(0xAF); - } - - // scans X86.rcx 4 byte words at [edi] for occurance of X86.rax, - // generic - public final void repneScanl() { // repneScan - emitByte(0xF2); - // SCASL - emitByte(0xAF); - } - - public final void ret(int imm16) { - if (imm16 == 0) { - emitByte(0xC3); - } else { - emitByte(0xC2); - emitShort(imm16); - } - } - - public final void sarl(Register dst, int imm8) { - int encode = prefixAndEncode(dst.encoding); - assert isShiftCount(imm8) : "illegal shift count"; - if (imm8 == 1) { - emitByte(0xD1); - emitByte(0xF8 | encode); - } else { - emitByte(0xC1); - emitByte(0xF8 | encode); - emitByte(imm8); - } - } - - public final void sarl(Register dst) { - int encode = prefixAndEncode(dst.encoding); - emitByte(0xD3); - emitByte(0xF8 | encode); - } - - public final void sbbl(Address dst, int imm32) { - prefix(dst); - emitArithOperand(0x81, rbx, dst, imm32); - } - - public final void sbbl(Register dst, int imm32) { - prefix(dst); - emitArith(0x81, 0xD8, dst, imm32); - } - - public final void sbbl(Register dst, Address src) { - prefix(src, dst); - emitByte(0x1B); - emitOperandHelper(dst, src); - } - - public final void sbbl(Register dst, Register src) { - prefixAndEncode(dst.encoding, src.encoding); - emitArith(0x1B, 0xC0, dst, src); - } - - public final void setb(ConditionFlag cc, Register dst) { - assert 0 <= cc.value && cc.value < 16 : "illegal cc"; - int encode = prefixAndEncode(dst.encoding, true); - emitByte(0x0F); - emitByte(0x90 | cc.value); - emitByte(0xC0 | encode); - } - - public final void shll(Register dst, int imm8) { - assert isShiftCount(imm8) : "illegal shift count"; - int encode = prefixAndEncode(dst.encoding); - if (imm8 == 1) { - emitByte(0xD1); - emitByte(0xE0 | encode); - } else { - emitByte(0xC1); - emitByte(0xE0 | encode); - emitByte(imm8); - } - } - - public final void shll(Register dst) { - int encode = prefixAndEncode(dst.encoding); - emitByte(0xD3); - emitByte(0xE0 | encode); - } - - public final void shrl(Register dst, int imm8) { - assert isShiftCount(imm8) : "illegal shift count"; - int encode = prefixAndEncode(dst.encoding); - emitByte(0xC1); - emitByte(0xE8 | encode); - emitByte(imm8); - } - - public final void shrl(Register dst) { - int encode = prefixAndEncode(dst.encoding); - emitByte(0xD3); - emitByte(0xE8 | encode); - } - - // copies a single word from [esi] to [edi] - public final void smovl() { - emitByte(0xA5); - } - - public final void sqrtsd(Register dst, Register src) { - assert dst.isFpu(); - assert src.isFpu(); - // HMM Table D-1 says sse2 - // assert is64 || target.supportsSSE(); - emitByte(0xF2); - int encode = prefixAndEncode(dst.encoding, src.encoding); - emitByte(0x0F); - emitByte(0x51); - emitByte(0xC0 | encode); - } - - public final void subl(Address dst, int imm32) { - prefix(dst); - if (isByte(imm32)) { - emitByte(0x83); - emitOperandHelper(rbp, dst); - emitByte(imm32 & 0xFF); - } else { - emitByte(0x81); - emitOperandHelper(rbp, dst); - emitInt(imm32); - } - } - - public final void subl(Register dst, int imm32) { - prefix(dst); - emitArith(0x81, 0xE8, dst, imm32); - } - - public final void subl(Address dst, Register src) { - prefix(dst, src); - emitByte(0x29); - emitOperandHelper(src, dst); - } - - public final void subl(Register dst, Address src) { - prefix(src, dst); - emitByte(0x2B); - emitOperandHelper(dst, src); - } - - public final void subl(Register dst, Register src) { - prefixAndEncode(dst.encoding, src.encoding); - emitArith(0x2B, 0xC0, dst, src); - } - - public final void subsd(Register dst, Register src) { - assert dst.isFpu(); - assert src.isFpu(); - emitByte(0xF2); - int encode = prefixAndEncode(dst.encoding, src.encoding); - emitByte(0x0F); - emitByte(0x5C); - emitByte(0xC0 | encode); - } - - public final void subsd(Register dst, Address src) { - assert dst.isFpu(); - - emitByte(0xF2); - prefix(src, dst); - emitByte(0x0F); - emitByte(0x5C); - emitOperandHelper(dst, src); - } - - public final void subss(Register dst, Register src) { - assert dst.isFpu(); - assert src.isFpu(); - emitByte(0xF3); - int encode = prefixAndEncode(dst.encoding, src.encoding); - emitByte(0x0F); - emitByte(0x5C); - emitByte(0xC0 | encode); - } - - public final void subss(Register dst, Address src) { - assert dst.isFpu(); - - emitByte(0xF3); - prefix(src, dst); - emitByte(0x0F); - emitByte(0x5C); - emitOperandHelper(dst, src); - } - - public final void testb(Register dst, int imm8) { - prefixAndEncode(dst.encoding, true); - emitArithB(0xF6, 0xC0, dst, imm8); - } - - public final void testl(Register dst, int imm32) { - // not using emitArith because test - // doesn't support sign-extension of - // 8bit operands - int encode = dst.encoding; - if (encode == 0) { - emitByte(0xA9); - } else { - encode = prefixAndEncode(encode); - emitByte(0xF7); - emitByte(0xC0 | encode); - } - emitInt(imm32); - } - - public final void testl(Register dst, Register src) { - prefixAndEncode(dst.encoding, src.encoding); - emitArith(0x85, 0xC0, dst, src); - } - - public final void testl(Register dst, Address src) { - prefix(src, dst); - emitByte(0x85); - emitOperandHelper(dst, src); - } - - public final void ucomisd(Register dst, Address src) { - assert dst.isFpu(); - emitByte(0x66); - ucomiss(dst, src); - } - - public final void ucomisd(Register dst, Register src) { - assert dst.isFpu(); - assert src.isFpu(); - emitByte(0x66); - ucomiss(dst, src); - } - - public final void ucomiss(Register dst, Address src) { - assert dst.isFpu(); - - prefix(src, dst); - emitByte(0x0F); - emitByte(0x2E); - emitOperandHelper(dst, src); - } - - public final void ucomiss(Register dst, Register src) { - assert dst.isFpu(); - assert src.isFpu(); - int encode = prefixAndEncode(dst.encoding, src.encoding); - emitByte(0x0F); - emitByte(0x2E); - emitByte(0xC0 | encode); - } - - public final void xaddl(Address dst, Register src) { - assert src.isFpu(); - - prefix(dst, src); - emitByte(0x0F); - emitByte(0xC1); - emitOperandHelper(src, dst); - } - - public final void xchgl(Register dst, Address src) { // xchg - prefix(src, dst); - emitByte(0x87); - emitOperandHelper(dst, src); - } - - public final void xchgl(Register dst, Register src) { - int encode = prefixAndEncode(dst.encoding, src.encoding); - emitByte(0x87); - emitByte(0xc0 | encode); - } - - public final void xorl(Register dst, int imm32) { - prefix(dst); - emitArith(0x81, 0xF0, dst, imm32); - } - - public final void xorl(Register dst, Address src) { - prefix(src, dst); - emitByte(0x33); - emitOperandHelper(dst, src); - } - - public final void xorl(Register dst, Register src) { - prefixAndEncode(dst.encoding, src.encoding); - emitArith(0x33, 0xC0, dst, src); - } - - public final void andpd(Register dst, Register src) { - emitByte(0x66); - andps(dst, src); - } - - public final void andpd(Register dst, Address src) { - emitByte(0x66); - andps(dst, src); - } - - public final void andps(Register dst, Register src) { - assert dst.isFpu() && src.isFpu(); - int encode = prefixAndEncode(dst.encoding, src.encoding); - emitByte(0x0F); - emitByte(0x54); - emitByte(0xC0 | encode); - } - - public final void andps(Register dst, Address src) { - assert dst.isFpu(); - prefix(src, dst); - emitByte(0x0F); - emitByte(0x54); - emitOperandHelper(dst, src); - } - - public final void orpd(Register dst, Register src) { - emitByte(0x66); - orps(dst, src); - } - - public final void orpd(Register dst, Address src) { - emitByte(0x66); - orps(dst, src); - } - - public final void orps(Register dst, Register src) { - assert dst.isFpu() && src.isFpu(); - int encode = prefixAndEncode(dst.encoding, src.encoding); - emitByte(0x0F); - emitByte(0x56); - emitByte(0xC0 | encode); - } - - public final void orps(Register dst, Address src) { - assert dst.isFpu(); - prefix(src, dst); - emitByte(0x0F); - emitByte(0x56); - emitOperandHelper(dst, src); - } - - public final void xorpd(Register dst, Register src) { - emitByte(0x66); - xorps(dst, src); - } - - public final void xorpd(Register dst, Address src) { - emitByte(0x66); - xorps(dst, src); - } - - public final void xorps(Register dst, Register src) { - assert dst.isFpu() && src.isFpu(); - int encode = prefixAndEncode(dst.encoding, src.encoding); - emitByte(0x0F); - emitByte(0x57); - emitByte(0xC0 | encode); - } - - public final void xorps(Register dst, Address src) { - assert dst.isFpu(); - prefix(src, dst); - emitByte(0x0F); - emitByte(0x57); - emitOperandHelper(dst, src); - } - - // 32bit only pieces of the assembler - - public final void decl(Register dst) { - // Don't use it directly. Use Macrodecrementl() instead. - // Use two-byte form (one-byte form is a REX prefix in 64-bit mode) - int encode = prefixAndEncode(dst.encoding); - emitByte(0xFF); - emitByte(0xC8 | encode); - } - - public final void incl(Register dst) { - // Don't use it directly. Use Macroincrementl() instead. - // Use two-byte form (one-byte from is a REX prefix in 64-bit mode) - int encode = prefixAndEncode(dst.encoding); - emitByte(0xFF); - emitByte(0xC0 | encode); - } - - int prefixAndEncode(int regEnc) { - return prefixAndEncode(regEnc, false); - } - - int prefixAndEncode(int regEnc, boolean byteinst) { - if (regEnc >= 8) { - emitByte(Prefix.REXB); - return regEnc - 8; - } else if (byteinst && regEnc >= 4) { - emitByte(Prefix.REX); - } - return regEnc; - } - - int prefixqAndEncode(int regEnc) { - if (regEnc < 8) { - emitByte(Prefix.REXW); - return regEnc; - } else { - emitByte(Prefix.REXWB); - return regEnc - 8; - } - } - - int prefixAndEncode(int dstEnc, int srcEnc) { - return prefixAndEncode(dstEnc, srcEnc, false); - } - - int prefixAndEncode(int dstEncoding, int srcEncoding, boolean byteinst) { - int srcEnc = srcEncoding; - int dstEnc = dstEncoding; - if (dstEnc < 8) { - if (srcEnc >= 8) { - emitByte(Prefix.REXB); - srcEnc -= 8; - } else if (byteinst && srcEnc >= 4) { - emitByte(Prefix.REX); - } - } else { - if (srcEnc < 8) { - emitByte(Prefix.REXR); - } else { - emitByte(Prefix.REXRB); - srcEnc -= 8; - } - dstEnc -= 8; - } - return dstEnc << 3 | srcEnc; - } - - /** - * Creates prefix and the encoding of the lower 6 bits of the ModRM-Byte. It emits an operand prefix. If the given - * operands exceed 3 bits, the 4th bit is encoded in the prefix. - * - * @param regEncoding the encoding of the register part of the ModRM-Byte - * @param rmEncoding the encoding of the r/m part of the ModRM-Byte - * @return the lower 6 bits of the ModRM-Byte that should be emitted - */ - private int prefixqAndEncode(int regEncoding, int rmEncoding) { - int rmEnc = rmEncoding; - int regEnc = regEncoding; - if (regEnc < 8) { - if (rmEnc < 8) { - emitByte(Prefix.REXW); - } else { - emitByte(Prefix.REXWB); - rmEnc -= 8; - } - } else { - if (rmEnc < 8) { - emitByte(Prefix.REXWR); - } else { - emitByte(Prefix.REXWRB); - rmEnc -= 8; - } - regEnc -= 8; - } - return regEnc << 3 | rmEnc; - } - - private void prefix(Register reg) { - if (reg.encoding >= 8) { - emitByte(Prefix.REXB); - } - } - - private static boolean needsRex(Value value) { - return isRegister(value) && asRegister(value).encoding >= MinEncodingNeedsRex; - } - - - private void prefix(Address adr) { - if (needsRex(adr.getBase())) { - if (needsRex(adr.getIndex())) { - emitByte(Prefix.REXXB); - } else { - emitByte(Prefix.REXB); - } - } else { - if (needsRex(adr.getIndex())) { - emitByte(Prefix.REXX); - } - } - } - - private void prefixq(Address adr) { - if (needsRex(adr.getBase())) { - if (needsRex(adr.getIndex())) { - emitByte(Prefix.REXWXB); - } else { - emitByte(Prefix.REXWB); - } - } else { - if (needsRex(adr.getIndex())) { - emitByte(Prefix.REXWX); - } else { - emitByte(Prefix.REXW); - } - } - } - - private void prefix(Address adr, Register reg) { - if (reg.encoding < 8) { - if (needsRex(adr.getBase())) { - if (needsRex(adr.getIndex())) { - emitByte(Prefix.REXXB); - } else { - emitByte(Prefix.REXB); - } - } else { - if (needsRex(adr.getIndex())) { - emitByte(Prefix.REXX); - } else if (reg.encoding >= 4) { - emitByte(Prefix.REX); - } - } - } else { - if (needsRex(adr.getBase())) { - if (needsRex(adr.getIndex())) { - emitByte(Prefix.REXRXB); - } else { - emitByte(Prefix.REXRB); - } - } else { - if (needsRex(adr.getIndex())) { - emitByte(Prefix.REXRX); - } else { - emitByte(Prefix.REXR); - } - } - } - } - - private void prefixq(Address adr, Register src) { - if (src.encoding < 8) { - if (needsRex(adr.getBase())) { - if (needsRex(adr.getIndex())) { - emitByte(Prefix.REXWXB); - } else { - emitByte(Prefix.REXWB); - } - } else { - if (needsRex(adr.getIndex())) { - emitByte(Prefix.REXWX); - } else { - emitByte(Prefix.REXW); - } - } - } else { - if (needsRex(adr.getBase())) { - if (needsRex(adr.getIndex())) { - emitByte(Prefix.REXWRXB); - } else { - emitByte(Prefix.REXWRB); - } - } else { - if (needsRex(adr.getIndex())) { - emitByte(Prefix.REXWRX); - } else { - emitByte(Prefix.REXWR); - } - } - } - } - - public final void addq(Address dst, int imm32) { - prefixq(dst); - emitArithOperand(0x81, rax, dst, imm32); - } - - public final void addq(Address dst, Register src) { - prefixq(dst, src); - emitByte(0x01); - emitOperandHelper(src, dst); - } - - public final void addq(Register dst, int imm32) { - prefixqAndEncode(dst.encoding); - emitArith(0x81, 0xC0, dst, imm32); - } - - public final void addq(Register dst, Address src) { - prefixq(src, dst); - emitByte(0x03); - emitOperandHelper(dst, src); - } - - public final void addq(Register dst, Register src) { - prefixqAndEncode(dst.encoding, src.encoding); - emitArith(0x03, 0xC0, dst, src); - } - - public final void andq(Register dst, int imm32) { - prefixqAndEncode(dst.encoding); - emitArith(0x81, 0xE0, dst, imm32); - } - - public final void andq(Register dst, Address src) { - prefixq(src, dst); - emitByte(0x23); - emitOperandHelper(dst, src); - } - - public final void andq(Register dst, Register src) { - prefixqAndEncode(dst.encoding, src.encoding); - emitArith(0x23, 0xC0, dst, src); - } - - public final void bswapq(Register reg) { - int encode = prefixqAndEncode(reg.encoding); - emitByte(0x0F); - emitByte(0xC8 | encode); - } - - public final void cdqq() { - emitByte(Prefix.REXW); - emitByte(0x99); - } - - public final void cmovq(ConditionFlag cc, Register dst, Register src) { - int encode = prefixqAndEncode(dst.encoding, src.encoding); - emitByte(0x0F); - emitByte(0x40 | cc.value); - emitByte(0xC0 | encode); - } - - public final void cmovq(ConditionFlag cc, Register dst, Address src) { - prefixq(src, dst); - emitByte(0x0F); - emitByte(0x40 | cc.value); - emitOperandHelper(dst, src); - } - - public final void cmpq(Address dst, int imm32) { - prefixq(dst); - emitByte(0x81); - emitOperandHelper(rdi, dst); - emitInt(imm32); - } - - public final void cmpq(Register dst, int imm32) { - prefixqAndEncode(dst.encoding); - emitArith(0x81, 0xF8, dst, imm32); - } - - public final void cmpq(Address dst, Register src) { - prefixq(dst, src); - emitByte(0x3B); - emitOperandHelper(src, dst); - } - - public final void cmpq(Register dst, Register src) { - prefixqAndEncode(dst.encoding, src.encoding); - emitArith(0x3B, 0xC0, dst, src); - } - - public final void cmpq(Register dst, Address src) { - prefixq(src, dst); - emitByte(0x3B); - emitOperandHelper(dst, src); - } - - public final void cmpxchgq(Register reg, Address adr) { - prefixq(adr, reg); - emitByte(0x0F); - emitByte(0xB1); - emitOperandHelper(reg, adr); - } - - public final void cvtsi2sdq(Register dst, Register src) { - assert dst.isFpu(); - emitByte(0xF2); - int encode = prefixqAndEncode(dst.encoding, src.encoding); - emitByte(0x0F); - emitByte(0x2A); - emitByte(0xC0 | encode); - } - - public final void cvtsi2ssq(Register dst, Register src) { - assert dst.isFpu(); - emitByte(0xF3); - int encode = prefixqAndEncode(dst.encoding, src.encoding); - emitByte(0x0F); - emitByte(0x2A); - emitByte(0xC0 | encode); - } - - public final void cvttsd2siq(Register dst, Register src) { - assert src.isFpu(); - emitByte(0xF2); - int encode = prefixqAndEncode(dst.encoding, src.encoding); - emitByte(0x0F); - emitByte(0x2C); - emitByte(0xC0 | encode); - } - - public final void cvttss2siq(Register dst, Register src) { - assert src.isFpu(); - emitByte(0xF3); - int encode = prefixqAndEncode(dst.encoding, src.encoding); - emitByte(0x0F); - emitByte(0x2C); - emitByte(0xC0 | encode); - } - - public final void decq(Register dst) { - // Don't use it directly. Use Macrodecrementq() instead. - // Use two-byte form (one-byte from is a REX prefix in 64-bit mode) - int encode = prefixqAndEncode(dst.encoding); - emitByte(0xFF); - emitByte(0xC8 | encode); - } - - public final void decq(Address dst) { - // Don't use it directly. Use Macrodecrementq() instead. - prefixq(dst); - emitByte(0xFF); - emitOperandHelper(rcx, dst); - } - - public final void divq(Register src) { - int encode = prefixqAndEncode(src.encoding); - emitByte(0xF7); - emitByte(0xF0 | encode); - } - - public final void idivq(Register src) { - int encode = prefixqAndEncode(src.encoding); - emitByte(0xF7); - emitByte(0xF8 | encode); - } - - public final void imulq(Register dst, Register src) { - int encode = prefixqAndEncode(dst.encoding, src.encoding); - emitByte(0x0F); - emitByte(0xAF); - emitByte(0xC0 | encode); - } - - public final void imulq(Register dst, Register src, int value) { - int encode = prefixqAndEncode(dst.encoding, src.encoding); - if (isByte(value)) { - emitByte(0x6B); - emitByte(0xC0 | encode); - emitByte(value); - } else { - emitByte(0x69); - emitByte(0xC0 | encode); - emitInt(value); - } - } - - public final void incq(Register dst) { - // Don't use it directly. Use Macroincrementq() instead. - // Use two-byte form (one-byte from is a REX prefix in 64-bit mode) - int encode = prefixqAndEncode(dst.encoding); - emitByte(0xFF); - emitByte(0xC0 | encode); - } - - public final void incq(Address dst) { - // Don't use it directly. Use Macroincrementq() instead. - prefixq(dst); - emitByte(0xFF); - emitOperandHelper(rax, dst); - } - - public final void movq(Register dst, long imm64) { - int encode = prefixqAndEncode(dst.encoding); - emitByte(0xB8 | encode); - emitLong(imm64); - } - - public final void movdq(Register dst, Register src) { - - // table D-1 says MMX/SSE2 - emitByte(0x66); - - if (dst.isFpu()) { - assert dst.isFpu(); - int encode = prefixqAndEncode(dst.encoding, src.encoding); - emitByte(0x0F); - emitByte(0x6E); - emitByte(0xC0 | encode); - } else if (src.isFpu()) { - - // swap src/dst to get correct prefix - int encode = prefixqAndEncode(src.encoding, dst.encoding); - emitByte(0x0F); - emitByte(0x7E); - emitByte(0xC0 | encode); - } else { - throw new InternalError("should not reach here"); - } - } - - public final void movsbq(Register dst, Address src) { - prefixq(src, dst); - emitByte(0x0F); - emitByte(0xBE); - emitOperandHelper(dst, src); - } - - public final void movsbq(Register dst, Register src) { - int encode = prefixqAndEncode(dst.encoding, src.encoding); - emitByte(0x0F); - emitByte(0xBE); - emitByte(0xC0 | encode); - } - - public final void movslq(Register dst, int imm32) { - int encode = prefixqAndEncode(dst.encoding); - emitByte(0xC7 | encode); - emitInt(imm32); - // dbx shows movslq(X86.rcx, 3) as movq $0x0000000049000000,(%X86.rbx) - // and movslq(X86.r8, 3); as movl $0x0000000048000000,(%X86.rbx) - // as a result we shouldn't use until tested at runtime... - throw new InternalError("untested"); - } - - public final void movslq(Address dst, int imm32) { - prefixq(dst); - emitByte(0xC7); - emitOperandHelper(rax, dst); - emitInt(imm32); - } - - public final void movslq(Register dst, Address src) { - prefixq(src, dst); - emitByte(0x63); - emitOperandHelper(dst, src); - } - - public final void movslq(Register dst, Register src) { - int encode = prefixqAndEncode(dst.encoding, src.encoding); - emitByte(0x63); - emitByte(0xC0 | encode); - } - - public final void movswq(Register dst, Address src) { - prefixq(src, dst); - emitByte(0x0F); - emitByte(0xBF); - emitOperandHelper(dst, src); - } - - public final void movswq(Register dst, Register src) { - int encode = prefixqAndEncode(dst.encoding, src.encoding); - emitByte(0x0F); - emitByte(0xBF); - emitByte(0xC0 | encode); - } - - public final void movzbq(Register dst, Address src) { - prefixq(src, dst); - emitByte(0x0F); - emitByte(0xB6); - emitOperandHelper(dst, src); - } - - public final void movzbq(Register dst, Register src) { - int encode = prefixqAndEncode(dst.encoding, src.encoding); - emitByte(0x0F); - emitByte(0xB6); - emitByte(0xC0 | encode); - } - - public final void movzwq(Register dst, Address src) { - prefixq(src, dst); - emitByte(0x0F); - emitByte(0xB7); - emitOperandHelper(dst, src); - } - - public final void movzwq(Register dst, Register src) { - int encode = prefixqAndEncode(dst.encoding, src.encoding); - emitByte(0x0F); - emitByte(0xB7); - emitByte(0xC0 | encode); - } - - public final void negq(Register dst) { - int encode = prefixqAndEncode(dst.encoding); - emitByte(0xF7); - emitByte(0xD8 | encode); - } - - public final void notq(Register dst) { - int encode = prefixqAndEncode(dst.encoding); - emitByte(0xF7); - emitByte(0xD0 | encode); - } - - public final void orq(Address dst, int imm32) { - prefixq(dst); - emitByte(0x81); - emitOperandHelper(rcx, dst); - emitInt(imm32); - } - - public final void orq(Register dst, int imm32) { - prefixqAndEncode(dst.encoding); - emitArith(0x81, 0xC8, dst, imm32); - } - - public final void orq(Register dst, Address src) { - prefixq(src, dst); - emitByte(0x0B); - emitOperandHelper(dst, src); - } - - public final void orq(Register dst, Register src) { - prefixqAndEncode(dst.encoding, src.encoding); - emitArith(0x0B, 0xC0, dst, src); - } - - public final void popq(Address dst) { - prefixq(dst); - emitByte(0x8F); - emitOperandHelper(rax, dst); - } - - public final void pushq(Address src) { - prefixq(src); - emitByte(0xFF); - emitOperandHelper(rsi, src); - } - - public final void rclq(Register dst, int imm8) { - assert isShiftCount(imm8 >> 1) : "illegal shift count"; - int encode = prefixqAndEncode(dst.encoding); - if (imm8 == 1) { - emitByte(0xD1); - emitByte(0xD0 | encode); - } else { - emitByte(0xC1); - emitByte(0xD0 | encode); - emitByte(imm8); - } - } - - public final void sarq(Register dst, int imm8) { - assert isShiftCount(imm8 >> 1) : "illegal shift count"; - int encode = prefixqAndEncode(dst.encoding); - if (imm8 == 1) { - emitByte(0xD1); - emitByte(0xF8 | encode); - } else { - emitByte(0xC1); - emitByte(0xF8 | encode); - emitByte(imm8); - } - } - - public final void sarq(Register dst) { - int encode = prefixqAndEncode(dst.encoding); - emitByte(0xD3); - emitByte(0xF8 | encode); - } - - public final void shlq(Register dst, int imm8) { - assert isShiftCount(imm8 >> 1) : "illegal shift count"; - int encode = prefixqAndEncode(dst.encoding); - if (imm8 == 1) { - emitByte(0xD1); - emitByte(0xE0 | encode); - } else { - emitByte(0xC1); - emitByte(0xE0 | encode); - emitByte(imm8); - } - } - - public final void shlq(Register dst) { - int encode = prefixqAndEncode(dst.encoding); - emitByte(0xD3); - emitByte(0xE0 | encode); - } - - public final void shrq(Register dst, int imm8) { - assert isShiftCount(imm8 >> 1) : "illegal shift count"; - int encode = prefixqAndEncode(dst.encoding); - emitByte(0xC1); - emitByte(0xE8 | encode); - emitByte(imm8); - } - - public final void shrq(Register dst) { - int encode = prefixqAndEncode(dst.encoding); - emitByte(0xD3); - emitByte(0xE8 | encode); - } - - public final void sqrtsd(Register dst, Address src) { - assert dst.isFpu(); - - emitByte(0xF2); - prefix(src, dst); - emitByte(0x0F); - emitByte(0x51); - emitOperandHelper(dst, src); - } - - public final void subq(Address dst, int imm32) { - prefixq(dst); - if (isByte(imm32)) { - emitByte(0x83); - emitOperandHelper(rbp, dst); - emitByte(imm32 & 0xFF); - } else { - emitByte(0x81); - emitOperandHelper(rbp, dst); - emitInt(imm32); - } - } - - public final void subq(Register dst, int imm32) { - prefixqAndEncode(dst.encoding); - emitArith(0x81, 0xE8, dst, imm32); - } - - public final void subq(Address dst, Register src) { - prefixq(dst, src); - emitByte(0x29); - emitOperandHelper(src, dst); - } - - public final void subq(Register dst, Address src) { - prefixq(src, dst); - emitByte(0x2B); - emitOperandHelper(dst, src); - } - - public final void subq(Register dst, Register src) { - prefixqAndEncode(dst.encoding, src.encoding); - emitArith(0x2B, 0xC0, dst, src); - } - - public final void testq(Register dst, int imm32) { - // not using emitArith because test - // doesn't support sign-extension of - // 8bit operands - int encode = dst.encoding; - if (encode == 0) { - emitByte(Prefix.REXW); - emitByte(0xA9); - } else { - encode = prefixqAndEncode(encode); - emitByte(0xF7); - emitByte(0xC0 | encode); - } - emitInt(imm32); - } - - public final void testq(Register dst, Register src) { - prefixqAndEncode(dst.encoding, src.encoding); - emitArith(0x85, 0xC0, dst, src); - } - - public final void xaddq(Address dst, Register src) { - prefixq(dst, src); - emitByte(0x0F); - emitByte(0xC1); - emitOperandHelper(src, dst); - } - - public final void xchgq(Register dst, Address src) { - prefixq(src, dst); - emitByte(0x87); - emitOperandHelper(dst, src); - } - - public final void xchgq(Register dst, Register src) { - int encode = prefixqAndEncode(dst.encoding, src.encoding); - emitByte(0x87); - emitByte(0xc0 | encode); - } - - public final void xorq(Register dst, int imm32) { - prefixqAndEncode(dst.encoding); - emitArith(0x81, 0xF0, dst, imm32); - } - - public final void xorq(Register dst, Register src) { - prefixqAndEncode(dst.encoding, src.encoding); - emitArith(0x33, 0xC0, dst, src); - } - - public final void xorq(Register dst, Address src) { - - prefixq(src, dst); - emitByte(0x33); - emitOperandHelper(dst, src); - - } - - public final void membar(int barriers) { - if (target.isMP) { - // We only have to handle StoreLoad - if ((barriers & STORE_LOAD) != 0) { - // All usable chips support "locked" instructions which suffice - // as barriers, and are much faster than the alternative of - // using cpuid instruction. We use here a locked add [rsp],0. - // This is conveniently otherwise a no-op except for blowing - // flags. - // Any change to this code may need to revisit other places in - // the code where this idiom is used, in particular the - // orderAccess code. - lock(); - addl(new Address(Word, RSP, 0), 0); // Assert the lock# signal here - } - } - } - - @Override - protected final void patchJumpTarget(int branch, int branchTarget) { - int op = codeBuffer.getByte(branch); - assert op == 0xE8 // call - || op == 0x00 // jump table entry - || op == 0xE9 // jmp - || op == 0xEB // short jmp - || (op & 0xF0) == 0x70 // short jcc - || op == 0x0F && (codeBuffer.getByte(branch + 1) & 0xF0) == 0x80 // jcc - : "Invalid opcode at patch point branch=" + branch + ", branchTarget=" + branchTarget + ", op=" + op; - - if (op == 0x00) { - int offsetToJumpTableBase = codeBuffer.getShort(branch + 1); - int jumpTableBase = branch - offsetToJumpTableBase; - int imm32 = branchTarget - jumpTableBase; - codeBuffer.emitInt(imm32, branch); - } else if (op == 0xEB || (op & 0xF0) == 0x70) { - - // short offset operators (jmp and jcc) - int imm8 = branchTarget - (branch + 2); - codeBuffer.emitByte(imm8, branch + 1); - - } else { - - int off = 1; - if (op == 0x0F) { - off = 2; - } - - int imm32 = branchTarget - (branch + 4 + off); - codeBuffer.emitInt(imm32, branch + off); - } - } - - public void nullCheck(Register r) { - testl(AMD64.rax, new Address(Word, r.asValue(Word), 0)); - } - - @Override - public void align(int modulus) { - if (codeBuffer.position() % modulus != 0) { - nop(modulus - (codeBuffer.position() % modulus)); - } - } - - public void pushfq() { - emitByte(0x9c); - } - - public void popfq() { - emitByte(0x9D); - } - - /** - * Makes sure that a subsequent {@linkplain #call} does not fail the alignment check. - */ - public final void alignForPatchableDirectCall() { - int dispStart = codeBuffer.position() + 1; - int mask = target.wordSize - 1; - if ((dispStart & ~mask) != ((dispStart + 3) & ~mask)) { - nop(target.wordSize - (dispStart & mask)); - assert ((codeBuffer.position() + 1) & mask) == 0; - } - } - - /** - * Emits a direct call instruction. Note that the actual call target is not specified, because all calls - * need patching anyway. Therefore, 0 is emitted as the call target, and the user is responsible - * to add the call address to the appropriate patching tables. - */ - public final void call() { - emitByte(0xE8); - emitInt(0); - } - - public final void call(Register src) { - int encode = prefixAndEncode(src.encoding); - emitByte(0xFF); - emitByte(0xD0 | encode); - } - - public void int3() { - emitByte(0xCC); - } - - public void enter(short imm16, byte imm8) { - emitByte(0xC8); - // appended: - emitByte(imm16 & 0xff); - emitByte((imm16 >> 8) & 0xff); - emitByte(imm8); - } - - private void emitx87(int b1, int b2, int i) { - assert 0 <= i && i < 8 : "illegal stack offset"; - emitByte(b1); - emitByte(b2 + i); - } - - public void fld(Address src) { - emitByte(0xDD); - emitOperandHelper(rax, src); - } - - public void fld(int i) { - emitx87(0xD9, 0xC0, i); - } - - public void fldln2() { - emitByte(0xD9); - emitByte(0xED); - } - - public void fldlg2() { - emitByte(0xD9); - emitByte(0xEC); - } - - public void fyl2x() { - emitByte(0xD9); - emitByte(0xF1); - } - - public void fstp(Address src) { - emitByte(0xDD); - emitOperandHelper(rbx, src); - } - - public void fsin() { - emitByte(0xD9); - emitByte(0xFE); - } - - public void fcos() { - emitByte(0xD9); - emitByte(0xFF); - } - - public void fptan() { - emitByte(0xD9); - emitByte(0xF2); - } - - public void fstp(int i) { - emitx87(0xDD, 0xD8, i); - } - - @Override - public void bangStack(int disp) { - movq(new Address(target.wordKind, AMD64.RSP, -disp), AMD64.rax); - } -}
--- a/graal/com.oracle.max.asm.amd64/src/com/oracle/max/asm/amd64/AMD64MacroAssembler.java Wed Oct 03 16:49:51 2012 +0200 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,392 +0,0 @@ -/* - * Copyright (c) 2009, 2011, Oracle and/or its affiliates. All rights reserved. - * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. - * - * This code is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 only, as - * published by the Free Software Foundation. - * - * This code is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License - * version 2 for more details (a copy is included in the LICENSE file that - * accompanied this code). - * - * You should have received a copy of the GNU General Public License version - * 2 along with this work; if not, write to the Free Software Foundation, - * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. - * - * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA - * or visit www.oracle.com if you need additional information or have any - * questions. - */ -package com.oracle.max.asm.amd64; - -import static com.oracle.max.asm.amd64.AMD64AsmOptions.*; - -import com.oracle.graal.api.code.*; -import com.oracle.graal.api.meta.*; -import com.oracle.max.asm.*; - -/** - * This class implements commonly used X86 code patterns. - */ -public class AMD64MacroAssembler extends AMD64Assembler { - - public AMD64MacroAssembler(TargetDescription target, RegisterConfig registerConfig) { - super(target, registerConfig); - } - - public void pushptr(Address src) { - pushq(src); - } - - public void popptr(Address src) { - popq(src); - } - - public void xorptr(Register dst, Register src) { - xorq(dst, src); - } - - public void xorptr(Register dst, Address src) { - xorq(dst, src); - } - - // 64 bit versions - - - public void decrementq(Register reg, int value) { - if (value == Integer.MIN_VALUE) { - subq(reg, value); - return; - } - if (value < 0) { - incrementq(reg, -value); - return; - } - if (value == 0) { - return; - } - if (value == 1 && UseIncDec) { - decq(reg); - } else { - subq(reg, value); - } - } - - public void incrementq(Register reg, int value) { - if (value == Integer.MIN_VALUE) { - addq(reg, value); - return; - } - if (value < 0) { - decrementq(reg, -value); - return; - } - if (value == 0) { - return; - } - if (value == 1 && UseIncDec) { - incq(reg); - } else { - addq(reg, value); - } - } - - // These are mostly for initializing null - public void movptr(Address dst, int src) { - movslq(dst, src); - } - - public final void cmp32(Register src1, int imm) { - cmpl(src1, imm); - } - - public final void cmp32(Register src1, Address src2) { - cmpl(src1, src2); - } - - public void cmpsd2int(Register opr1, Register opr2, Register dst, boolean unorderedIsLess) { - assert opr1.isFpu() && opr2.isFpu(); - ucomisd(opr1, opr2); - - Label l = new Label(); - if (unorderedIsLess) { - movl(dst, -1); - jcc(AMD64Assembler.ConditionFlag.parity, l); - jcc(AMD64Assembler.ConditionFlag.below, l); - movl(dst, 0); - jcc(AMD64Assembler.ConditionFlag.equal, l); - incrementl(dst, 1); - } else { // unordered is greater - movl(dst, 1); - jcc(AMD64Assembler.ConditionFlag.parity, l); - jcc(AMD64Assembler.ConditionFlag.above, l); - movl(dst, 0); - jcc(AMD64Assembler.ConditionFlag.equal, l); - decrementl(dst, 1); - } - bind(l); - } - - public void cmpss2int(Register opr1, Register opr2, Register dst, boolean unorderedIsLess) { - assert opr1.isFpu(); - assert opr2.isFpu(); - ucomiss(opr1, opr2); - - Label l = new Label(); - if (unorderedIsLess) { - movl(dst, -1); - jcc(AMD64Assembler.ConditionFlag.parity, l); - jcc(AMD64Assembler.ConditionFlag.below, l); - movl(dst, 0); - jcc(AMD64Assembler.ConditionFlag.equal, l); - incrementl(dst, 1); - } else { // unordered is greater - movl(dst, 1); - jcc(AMD64Assembler.ConditionFlag.parity, l); - jcc(AMD64Assembler.ConditionFlag.above, l); - movl(dst, 0); - jcc(AMD64Assembler.ConditionFlag.equal, l); - decrementl(dst, 1); - } - bind(l); - } - - public void cmpptr(Register src1, Register src2) { - cmpq(src1, src2); - } - - public void cmpptr(Register src1, Address src2) { - cmpq(src1, src2); - } - - public void cmpptr(Register src1, int src2) { - cmpq(src1, src2); - } - - public void cmpptr(Address src1, int src2) { - cmpq(src1, src2); - } - - public void decrementl(Register reg, int value) { - if (value == Integer.MIN_VALUE) { - subl(reg, value); - return; - } - if (value < 0) { - incrementl(reg, -value); - return; - } - if (value == 0) { - return; - } - if (value == 1 && UseIncDec) { - decl(reg); - } else { - subl(reg, value); - } - } - - public void decrementl(Address dst, int value) { - if (value == Integer.MIN_VALUE) { - subl(dst, value); - return; - } - if (value < 0) { - incrementl(dst, -value); - return; - } - if (value == 0) { - return; - } - if (value == 1 && UseIncDec) { - decl(dst); - } else { - subl(dst, value); - } - } - - public void incrementl(Register reg, int value) { - if (value == Integer.MIN_VALUE) { - addl(reg, value); - return; - } - if (value < 0) { - decrementl(reg, -value); - return; - } - if (value == 0) { - return; - } - if (value == 1 && UseIncDec) { - incl(reg); - } else { - addl(reg, value); - } - } - - public void incrementl(Address dst, int value) { - if (value == Integer.MIN_VALUE) { - addl(dst, value); - return; - } - if (value < 0) { - decrementl(dst, -value); - return; - } - if (value == 0) { - return; - } - if (value == 1 && UseIncDec) { - incl(dst); - } else { - addl(dst, value); - } - } - - public void signExtendByte(Register reg) { - if (reg.isByte()) { - movsxb(reg, reg); // movsxb - } else { - shll(reg, 24); - sarl(reg, 24); - } - } - - public void signExtendShort(Register reg) { - movsxw(reg, reg); // movsxw - } - - // Support optimal SSE move instructions. - public void movflt(Register dst, Register src) { - assert dst.isFpu() && src.isFpu(); - if (UseXmmRegToRegMoveAll) { - movaps(dst, src); - } else { - movss(dst, src); - } - } - - public void movflt(Register dst, Address src) { - assert dst.isFpu(); - movss(dst, src); - } - - public void movflt(Address dst, Register src) { - assert src.isFpu(); - movss(dst, src); - } - - public void movdbl(Register dst, Register src) { - assert dst.isFpu() && src.isFpu(); - if (UseXmmRegToRegMoveAll) { - movapd(dst, src); - } else { - movsd(dst, src); - } - } - - public void movdbl(Register dst, Address src) { - assert dst.isFpu(); - if (UseXmmLoadAndClearUpper) { - movsd(dst, src); - } else { - movlpd(dst, src); - } - } - - public void movdbl(Address dst, Register src) { - assert src.isFpu(); - movsd(dst, src); - } - - /** - * Non-atomic write of a 64-bit constant to memory. Do not use - * if the address might be a volatile field! - */ - public void movlong(Address dst, long src) { - Address high = new Address(dst.getKind(), dst.getBase(), dst.getIndex(), dst.getScale(), dst.getDisplacement() + 4); - movl(dst, (int) (src & 0xFFFFFFFF)); - movl(high, (int) (src >> 32)); - } - - public void xchgptr(Register src1, Register src2) { - xchgq(src1, src2); - } - - public void flog(Register dest, Register value, boolean base10) { - assert value.spillSlotSize == dest.spillSlotSize; - - Address tmp = new Address(Kind.Double, AMD64.RSP); - if (base10) { - fldlg2(); - } else { - fldln2(); - } - subq(AMD64.rsp, value.spillSlotSize); - movsd(tmp, value); - fld(tmp); - fyl2x(); - fstp(tmp); - movsd(dest, tmp); - addq(AMD64.rsp, dest.spillSlotSize); - } - - public void fsin(Register dest, Register value) { - ftrig(dest, value, 's'); - } - - public void fcos(Register dest, Register value) { - ftrig(dest, value, 'c'); - } - - public void ftan(Register dest, Register value) { - ftrig(dest, value, 't'); - } - - private void ftrig(Register dest, Register value, char op) { - assert value.spillSlotSize == dest.spillSlotSize; - - Address tmp = new Address(Kind.Double, AMD64.RSP); - subq(AMD64.rsp, value.spillSlotSize); - movsd(tmp, value); - fld(tmp); - if (op == 's') { - fsin(); - } else if (op == 'c') { - fcos(); - } else if (op == 't') { - fptan(); - fstp(0); // ftan pushes 1.0 in addition to the actual result, pop - } else { - throw new InternalError("should not reach here"); - } - fstp(tmp); - movsd(dest, tmp); - addq(AMD64.rsp, dest.spillSlotSize); - } - - /** - * Emit code to save a given set of callee save registers in the - * {@linkplain CalleeSaveLayout CSA} within the frame. - * @param csl the description of the CSA - * @param frameToCSA offset from the frame pointer to the CSA - */ - public void save(CalleeSaveLayout csl, int frameToCSA) { - RegisterValue frame = frameRegister.asValue(); - for (Register r : csl.registers) { - int offset = csl.offsetOf(r); - movq(new Address(target.wordKind, frame, frameToCSA + offset), r); - } - } - - public void restore(CalleeSaveLayout csl, int frameToCSA) { - RegisterValue frame = frameRegister.asValue(); - for (Register r : csl.registers) { - int offset = csl.offsetOf(r); - movq(r, new Address(target.wordKind, frame, frameToCSA + offset)); - } - } -}
--- a/graal/com.oracle.max.asm.amd64/src/com/oracle/max/asm/amd64/X86InstructionDecoder.java Wed Oct 03 16:49:51 2012 +0200 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,507 +0,0 @@ -/* - * Copyright (c) 2009, 2011, Oracle and/or its affiliates. All rights reserved. - * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. - * - * This code is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 only, as - * published by the Free Software Foundation. - * - * This code is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License - * version 2 for more details (a copy is included in the LICENSE file that - * accompanied this code). - * - * You should have received a copy of the GNU General Public License version - * 2 along with this work; if not, write to the Free Software Foundation, - * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. - * - * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA - * or visit www.oracle.com if you need additional information or have any - * questions. - */ -package com.oracle.max.asm.amd64; - - -public final class X86InstructionDecoder { - - private boolean targetIs64Bit; - private byte[] code; - private int currentEndOfInstruction; - private int currentDisplacementPosition; - - private static class Prefix { - - // segment overrides - public static final int CSSegment = 0x2e; - public static final int SSSegment = 0x36; - public static final int DSSegment = 0x3e; - public static final int ESSegment = 0x26; - public static final int FSSegment = 0x64; - public static final int GSSegment = 0x65; - public static final int REX = 0x40; - public static final int REXB = 0x41; - public static final int REXX = 0x42; - public static final int REXXB = 0x43; - public static final int REXR = 0x44; - public static final int REXRB = 0x45; - public static final int REXRX = 0x46; - public static final int REXRXB = 0x47; - public static final int REXW = 0x48; - public static final int REXWB = 0x49; - public static final int REXWX = 0x4A; - public static final int REXWXB = 0x4B; - public static final int REXWR = 0x4C; - public static final int REXWRB = 0x4D; - public static final int REXWRX = 0x4E; - public static final int REXWRXB = 0x4F; - } - - private X86InstructionDecoder(byte[] code, boolean targetIs64Bit) { - this.code = code; - this.targetIs64Bit = targetIs64Bit; - } - - public int currentEndOfInstruction() { - return currentEndOfInstruction; - } - - public int currentDisplacementPosition() { - return currentDisplacementPosition; - } - - public void decodePosition(int inst) { - - assert inst >= 0 && inst < code.length; - - // Decode the given instruction, and return the Pointer of - // an embedded 32-bit operand word. - - // If "which" is WhichOperand.disp32operand, selects the displacement portion - // of an effective Pointer specifier. - // If "which" is imm64Operand, selects the trailing immediate constant. - // If "which" is WhichOperand.call32operand, selects the displacement of a call or jump. - // Caller is responsible for ensuring that there is such an operand, - // and that it is 32/64 bits wide. - - // If "which" is endPcOperand, find the end of the instruction. - - int ip = inst; - boolean is64bit = false; - - boolean hasDisp32 = false; - int tailSize = 0; // other random bytes (#32, #16, etc.) at end of insn - - boolean againAfterPrefix = true; - - while (againAfterPrefix) { - againAfterPrefix = false; - switch (0xFF & code[ip++]) { - - // These convenience macros generate groups of "case" labels for the switch. - - case Prefix.CSSegment: - case Prefix.SSSegment: - case Prefix.DSSegment: - case Prefix.ESSegment: - case Prefix.FSSegment: - case Prefix.GSSegment: - // Seems dubious - assert !targetIs64Bit : "shouldn't have that prefix"; - assert ip == inst + 1 : "only one prefix allowed"; - againAfterPrefix = true; - break; - - case 0x67: - case Prefix.REX: - case Prefix.REXB: - case Prefix.REXX: - case Prefix.REXXB: - case Prefix.REXR: - case Prefix.REXRB: - case Prefix.REXRX: - case Prefix.REXRXB: - assert targetIs64Bit : "64bit prefixes"; - againAfterPrefix = true; - break; - - case Prefix.REXW: - case Prefix.REXWB: - case Prefix.REXWX: - case Prefix.REXWXB: - case Prefix.REXWR: - case Prefix.REXWRB: - case Prefix.REXWRX: - case Prefix.REXWRXB: - assert targetIs64Bit : "64bit prefixes"; - is64bit = true; - againAfterPrefix = true; - break; - - case 0xFF: // pushq a; decl a; incl a; call a; jmp a - case 0x88: // movb a, r - case 0x89: // movl a, r - case 0x8A: // movb r, a - case 0x8B: // movl r, a - case 0x8F: // popl a - hasDisp32 = true; - break; - - case 0x68: // pushq #32 - currentEndOfInstruction = ip + 4; - currentDisplacementPosition = ip; - return; // not produced by emitOperand - - case 0x66: // movw ... (size prefix) - boolean againAfterSizePrefix2 = true; - while (againAfterSizePrefix2) { - againAfterSizePrefix2 = false; - switch (0xFF & code[ip++]) { - case Prefix.REX: - case Prefix.REXB: - case Prefix.REXX: - case Prefix.REXXB: - case Prefix.REXR: - case Prefix.REXRB: - case Prefix.REXRX: - case Prefix.REXRXB: - case Prefix.REXW: - case Prefix.REXWB: - case Prefix.REXWX: - case Prefix.REXWXB: - case Prefix.REXWR: - case Prefix.REXWRB: - case Prefix.REXWRX: - case Prefix.REXWRXB: - assert targetIs64Bit : "64bit prefix found"; - againAfterSizePrefix2 = true; - break; - case 0x8B: // movw r, a - case 0x89: // movw a, r - hasDisp32 = true; - break; - case 0xC7: // movw a, #16 - hasDisp32 = true; - tailSize = 2; // the imm16 - break; - case 0x0F: // several SSE/SSE2 variants - ip--; // reparse the 0x0F - againAfterPrefix = true; - break; - default: - throw new InternalError("should not reach here"); - } - } - break; - - case 0xB8: // movl/q r, #32/#64(oop?) - case 0xB9: - case 0xBA: - case 0xBB: - case 0xBC: - case 0xBD: - case 0xBE: - case 0xBF: - currentEndOfInstruction = ip + (is64bit ? 8 : 4); - currentDisplacementPosition = ip; - return; - - case 0x69: // imul r, a, #32 - case 0xC7: // movl a, #32(oop?) - tailSize = 4; - hasDisp32 = true; // has both kinds of operands! - break; - - case 0x0F: // movx..., etc. - switch (0xFF & code[ip++]) { - case 0x12: // movlps - case 0x28: // movaps - case 0x2E: // ucomiss - case 0x2F: // comiss - case 0x54: // andps - case 0x55: // andnps - case 0x56: // orps - case 0x57: // xorps - case 0x6E: // movd - case 0x7E: // movd - case 0xAE: // ldmxcsr a - // 64bit side says it these have both operands but that doesn't - // appear to be true - hasDisp32 = true; - break; - - case 0xAD: // shrd r, a, %cl - case 0xAF: // imul r, a - case 0xBE: // movsbl r, a (movsxb) - case 0xBF: // movswl r, a (movsxw) - case 0xB6: // movzbl r, a (movzxb) - case 0xB7: // movzwl r, a (movzxw) - case 0x40: // cmovl cc, r, a - case 0x41: - case 0x42: - case 0x43: - case 0x44: - case 0x45: - case 0x46: - case 0x47: - case 0x48: - case 0x49: - case 0x4A: - case 0x4B: - case 0x4C: - case 0x4D: - case 0x4E: - case 0x4F: - case 0xB0: // cmpxchgb - case 0xB1: // cmpxchg - case 0xC1: // xaddl - case 0xC7: // cmpxchg8 - case 0x90: // setcc a - case 0x91: - case 0x92: - case 0x93: - case 0x94: - case 0x95: - case 0x96: - case 0x97: - case 0x98: - case 0x99: - case 0x9A: - case 0x9B: - case 0x9C: - case 0x9D: - case 0x9E: - case 0x9F: - hasDisp32 = true; - // fall out of the switch to decode the Pointer - break; - - case 0xAC: // shrd r, a, #8 - hasDisp32 = true; - tailSize = 1; // the imm8 - break; - - case 0x80: // jcc rdisp32 - case 0x81: - case 0x82: - case 0x83: - case 0x84: - case 0x85: - case 0x86: - case 0x87: - case 0x88: - case 0x89: - case 0x8A: - case 0x8B: - case 0x8C: - case 0x8D: - case 0x8E: - case 0x8F: - currentEndOfInstruction = ip + 4; - currentDisplacementPosition = ip; - return; - default: - throw new InternalError("should not reach here"); - } - break; - - case 0x81: // addl a, #32; addl r, #32 - // also: orl, adcl, sbbl, andl, subl, xorl, cmpl - // on 32bit in the case of cmpl, the imm might be an oop - tailSize = 4; - hasDisp32 = true; // has both kinds of operands! - break; - - case 0x83: // addl a, #8; addl r, #8 - // also: orl, adcl, sbbl, andl, subl, xorl, cmpl - hasDisp32 = true; // has both kinds of operands! - tailSize = 1; - break; - - case 0x9B: - switch (0xFF & code[ip++]) { - case 0xD9: // fnstcw a - hasDisp32 = true; - break; - default: - throw new InternalError("should not reach here"); - } - break; - - case 0x00: // addb a, r; addl a, r; addb r, a; addl r, a - case 0x01: - case 0x02: - case 0x03: - case 0x10: // adc... - case 0x11: - case 0x12: - case 0x13: - case 0x20: // and... - case 0x21: - case 0x22: - case 0x23: - case 0x30: // xor... - case 0x31: - case 0x32: - case 0x33: - case 0x08: // or... - case 0x09: - case 0x0a: - case 0x0b: - case 0x18: // sbb... - case 0x19: - case 0x1a: - case 0x1b: - case 0x28: // sub... - case 0x29: - case 0x2a: - case 0x2b: - case 0xF7: // mull a - case 0x8D: // lea r, a - case 0x87: // xchg r, a - case 0x38: // cmp... - case 0x39: - case 0x3a: - case 0x3b: - case 0x85: // test r, a - hasDisp32 = true; // has both kinds of operands! - break; - - case 0xC1: // sal a, #8; sar a, #8; shl a, #8; shr a, #8 - case 0xC6: // movb a, #8 - case 0x80: // cmpb a, #8 - case 0x6B: // imul r, a, #8 - hasDisp32 = true; // has both kinds of operands! - tailSize = 1; // the imm8 - break; - - case 0xE8: // call rdisp32 - case 0xE9: // jmp rdisp32 - currentEndOfInstruction = ip + 4; - currentDisplacementPosition = ip; - return; - - case 0xD1: // sal a, 1; sar a, 1; shl a, 1; shr a, 1 - case 0xD3: // sal a, %cl; sar a, %cl; shl a, %cl; shr a, %cl - case 0xD9: // fldS a; fstS a; fstpS a; fldcw a - case 0xDD: // fldD a; fstD a; fstpD a - case 0xDB: // fildS a; fistpS a; fldX a; fstpX a - case 0xDF: // fildD a; fistpD a - case 0xD8: // faddS a; fsubrS a; fmulS a; fdivrS a; fcompS a - case 0xDC: // faddD a; fsubrD a; fmulD a; fdivrD a; fcompD a - case 0xDE: // faddpD a; fsubrpD a; fmulpD a; fdivrpD a; fcomppD a - hasDisp32 = true; - break; - - case 0xF0: // Lock - againAfterPrefix = true; - break; - - case 0xF3: // For SSE - case 0xF2: // For SSE2 - switch (0xFF & code[ip++]) { - case Prefix.REX: - case Prefix.REXB: - case Prefix.REXX: - case Prefix.REXXB: - case Prefix.REXR: - case Prefix.REXRB: - case Prefix.REXRX: - case Prefix.REXRXB: - case Prefix.REXW: - case Prefix.REXWB: - case Prefix.REXWX: - case Prefix.REXWXB: - case Prefix.REXWR: - case Prefix.REXWRB: - case Prefix.REXWRX: - case Prefix.REXWRXB: - assert targetIs64Bit : "found 64bit prefix"; - ip++; - // fall through - default: - ip++; - } - hasDisp32 = true; // has both kinds of operands! - break; - - default: - throw new InternalError("should not reach here"); - } - } - - assert hasDisp32 : "(thomaswue) not sure if this holds: instruction has no disp32 field"; - - // parse the output of emitOperand - int op2 = 0xFF & code[ip++]; - int base = op2 & 0x07; - int op3 = -1; - int b100 = 4; - int b101 = 5; - if (base == b100 && (op2 >> 6) != 3) { - op3 = 0xFF & code[ip++]; - base = op3 & 0x07; // refetch the base - } - // now ip points at the disp (if any) - - switch (op2 >> 6) { - case 0: - // [00 reg 100][ss index base] - // [00 reg 100][00 100 esp] - // [00 reg base] - // [00 reg 100][ss index 101][disp32] - // [00 reg 101] [disp32] - - if (base == b101) { - - currentDisplacementPosition = ip; - ip += 4; // skip the disp32 - } - break; - - case 1: - // [01 reg 100][ss index base][disp8] - // [01 reg 100][00 100 esp][disp8] - // [01 reg base] [disp8] - ip += 1; // skip the disp8 - break; - - case 2: - // [10 reg 100][ss index base][disp32] - // [10 reg 100][00 100 esp][disp32] - // [10 reg base] [disp32] - currentDisplacementPosition = ip; - ip += 4; // skip the disp32 - break; - - case 3: - // [11 reg base] (not a memory addressing mode) - break; - } - - currentEndOfInstruction = ip + tailSize; - } - - public static void patchRelativeInstruction(byte[] code, int codePos, int relative) { - X86InstructionDecoder decoder = new X86InstructionDecoder(code, true); - decoder.decodePosition(codePos); - int patchPos = decoder.currentDisplacementPosition(); - int endOfInstruction = decoder.currentEndOfInstruction(); - int offset = relative - endOfInstruction + codePos; - patchDisp32(code, patchPos, offset); - } - - private static void patchDisp32(byte[] code, int pos, int offset) { - assert pos + 4 <= code.length; - - assert code[pos] == 0; - assert code[pos + 1] == 0; - assert code[pos + 2] == 0; - assert code[pos + 3] == 0; - - code[pos] = (byte) (offset & 0xFF); - code[pos + 1] = (byte) ((offset >> 8) & 0xFF); - code[pos + 2] = (byte) ((offset >> 16) & 0xFF); - code[pos + 3] = (byte) ((offset >> 24) & 0xFF); - } -}
--- a/graal/com.oracle.max.asm/overview.html Wed Oct 03 16:49:51 2012 +0200 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,36 +0,0 @@ -<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN"> -<html> -<head> -<!-- - -Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved. -DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. - -This code is free software; you can redistribute it and/or modify it -under the terms of the GNU General Public License version 2 only, as -published by the Free Software Foundation. Oracle designates this -particular file as subject to the "Classpath" exception as provided -by Oracle in the LICENSE file that accompanied this code. - -This code is distributed in the hope that it will be useful, but WITHOUT -ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or -FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License -version 2 for more details (a copy is included in the LICENSE file that -accompanied this code). - -You should have received a copy of the GNU General Public License version -2 along with this work; if not, write to the Free Software Foundation, -Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. - -Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA -or visit www.oracle.com if you need additional information or have any -questions. ---> - -</head> -<body> - -Documentation for the <code>com.oracle.max.asm</code> project. - -</body> -</html>
--- a/graal/com.oracle.max.asm/src/com/oracle/max/asm/AbstractAssembler.java Wed Oct 03 16:49:51 2012 +0200 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,80 +0,0 @@ -/* - * Copyright (c) 2009, 2011, Oracle and/or its affiliates. All rights reserved. - * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. - * - * This code is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 only, as - * published by the Free Software Foundation. - * - * This code is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License - * version 2 for more details (a copy is included in the LICENSE file that - * accompanied this code). - * - * You should have received a copy of the GNU General Public License version - * 2 along with this work; if not, write to the Free Software Foundation, - * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. - * - * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA - * or visit www.oracle.com if you need additional information or have any - * questions. - */ -package com.oracle.max.asm; - -import com.oracle.graal.api.code.*; -import com.oracle.graal.api.code.Architecture.*; - -/** - * The platform-independent base class for the assembler. - */ -public abstract class AbstractAssembler { - public final TargetDescription target; - public final Buffer codeBuffer; - - public AbstractAssembler(TargetDescription target) { - this.target = target; - - if (target.arch.byteOrder == ByteOrder.BigEndian) { - this.codeBuffer = new Buffer.BigEndian(); - } else { - this.codeBuffer = new Buffer.LittleEndian(); - } - } - - public final void bind(Label l) { - assert !l.isBound() : "can bind label only once"; - l.bind(codeBuffer.position()); - l.patchInstructions(this); - } - - public abstract void align(int modulus); - - public abstract void jmp(Label l); - - protected abstract void patchJumpTarget(int branch, int jumpTarget); - - /** - * Emits instruction(s) that access an address specified by a given displacement from the stack pointer - * in the direction that the stack grows (which is down on most architectures). - * - * @param disp the displacement from the stack pointer at which the stack should be accessed - */ - public abstract void bangStack(int disp); - - protected final void emitByte(int x) { - codeBuffer.emitByte(x); - } - - protected final void emitShort(int x) { - codeBuffer.emitShort(x); - } - - protected final void emitInt(int x) { - codeBuffer.emitInt(x); - } - - protected final void emitLong(long x) { - codeBuffer.emitLong(x); - } -}
--- a/graal/com.oracle.max.asm/src/com/oracle/max/asm/AsmOptions.java Wed Oct 03 16:49:51 2012 +0200 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,27 +0,0 @@ -/* - * Copyright (c) 2011, 2011, Oracle and/or its affiliates. All rights reserved. - * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. - * - * This code is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 only, as - * published by the Free Software Foundation. - * - * This code is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License - * version 2 for more details (a copy is included in the LICENSE file that - * accompanied this code). - * - * You should have received a copy of the GNU General Public License version - * 2 along with this work; if not, write to the Free Software Foundation, - * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. - * - * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA - * or visit www.oracle.com if you need additional information or have any - * questions. - */ -package com.oracle.max.asm; - -public class AsmOptions { - public static int InitialCodeBufferSize = 232; -}
--- a/graal/com.oracle.max.asm/src/com/oracle/max/asm/Buffer.java Wed Oct 03 16:49:51 2012 +0200 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,242 +0,0 @@ -/* - * Copyright (c) 2009, 2011, Oracle and/or its affiliates. All rights reserved. - * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. - * - * This code is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 only, as - * published by the Free Software Foundation. - * - * This code is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License - * version 2 for more details (a copy is included in the LICENSE file that - * accompanied this code). - * - * You should have received a copy of the GNU General Public License version - * 2 along with this work; if not, write to the Free Software Foundation, - * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. - * - * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA - * or visit www.oracle.com if you need additional information or have any - * questions. - */ -package com.oracle.max.asm; - -import java.util.*; - -/** - * Code buffer management for the assembler. Support for little endian and big endian architectures is implemented using subclasses. - */ -public abstract class Buffer { - protected byte[] data; - protected int position; - - public Buffer() { - data = new byte[AsmOptions.InitialCodeBufferSize]; - } - - public void reset() { - position = 0; - } - - public int position() { - return position; - } - - public void setPosition(int position) { - assert position >= 0 && position <= data.length; - this.position = position; - } - - /** - * Closes this buffer. No extra data can be written to this buffer after - * this call. - * - * @param trimmedCopy - * if {@code true}, then a copy of the underlying byte array up - * to (but not including) {@code position()} is returned - * @return the data in this buffer or a trimmed copy if {@code trimmedCopy} - * is {@code true} - */ - public byte[] close(boolean trimmedCopy) { - byte[] result = trimmedCopy ? Arrays.copyOf(data, position()) : data; - data = null; - return result; - } - - public byte[] copyData(int start, int end) { - return Arrays.copyOfRange(data, start, end); - } - - /** - * Copies the data from this buffer into a given array. - * - * @param dst - * the destination array - * @param off - * starting position in {@code dst} - * @param len - * number of bytes to copy - */ - public void copyInto(byte[] dst, int off, int len) { - System.arraycopy(data, 0, dst, off, len); - } - - protected void ensureSize(int length) { - if (length >= data.length) { - data = Arrays.copyOf(data, length * 4); - } - } - - public void emitBytes(byte[] arr, int off, int len) { - ensureSize(position + len); - System.arraycopy(arr, off, data, position, len); - position += len; - } - - public void emitByte(int b) { - position = emitByte(b, position); - } - - public void emitShort(int b) { - position = emitShort(b, position); - } - - public void emitInt(int b) { - position = emitInt(b, position); - } - - public void emitLong(long b) { - position = emitLong(b, position); - } - - public int emitByte(int b, int pos) { - assert NumUtil.isUByte(b); - int newPos = pos + 1; - ensureSize(newPos); - data[pos] = (byte) (b & 0xFF); - return newPos; - } - - public abstract int emitShort(int b, int pos); - - public abstract int emitInt(int b, int pos); - - public abstract int emitLong(long b, int pos); - - public int getByte(int pos) { - return data[pos] & 0xff; - } - - public abstract int getShort(int pos); - - public abstract int getInt(int pos); - - public static final class BigEndian extends Buffer { - @Override - public int emitShort(int b, int pos) { - assert NumUtil.isUShort(b); - int newPos = pos + 2; - ensureSize(pos + 2); - data[pos] = (byte) ((b >> 8) & 0xFF); - data[pos + 1] = (byte) (b & 0xFF); - return newPos; - } - - @Override - public int emitInt(int b, int pos) { - int newPos = pos + 4; - ensureSize(newPos); - data[pos] = (byte) ((b >> 24) & 0xFF); - data[pos + 1] = (byte) ((b >> 16) & 0xFF); - data[pos + 2] = (byte) ((b >> 8) & 0xFF); - data[pos + 3] = (byte) (b & 0xFF); - return newPos; - } - - @Override - public int emitLong(long b, int pos) { - int newPos = pos + 8; - ensureSize(newPos); - data[pos] = (byte) ((b >> 56) & 0xFF); - data[pos + 1] = (byte) ((b >> 48) & 0xFF); - data[pos + 2] = (byte) ((b >> 40) & 0xFF); - data[pos + 3] = (byte) ((b >> 32) & 0xFF); - data[pos + 4] = (byte) ((b >> 24) & 0xFF); - data[pos + 5] = (byte) ((b >> 16) & 0xFF); - data[pos + 6] = (byte) ((b >> 8) & 0xFF); - data[pos + 7] = (byte) (b & 0xFF); - return newPos; - } - - @Override - public int getShort(int pos) { - return - (data[pos + 0] & 0xff) << 8 | - (data[pos + 1] & 0xff) << 0; - } - - @Override - public int getInt(int pos) { - return - (data[pos + 0] & 0xff) << 24 | - (data[pos + 1] & 0xff) << 16 | - (data[pos + 2] & 0xff) << 8 | - (data[pos + 3] & 0xff) << 0; - } - } - - public static final class LittleEndian extends Buffer { - @Override - public int emitShort(int b, int pos) { - assert NumUtil.isUShort(b); - int newPos = pos + 2; - ensureSize(newPos); - data[pos] = (byte) (b & 0xFF); - data[pos + 1] = (byte) ((b >> 8) & 0xFF); - return newPos; - } - - @Override - public int emitInt(int b, int pos) { - int newPos = pos + 4; - ensureSize(newPos); - data[pos] = (byte) (b & 0xFF); - data[pos + 1] = (byte) ((b >> 8) & 0xFF); - data[pos + 2] = (byte) ((b >> 16) & 0xFF); - data[pos + 3] = (byte) ((b >> 24) & 0xFF); - return newPos; - } - - @Override - public int emitLong(long b, int pos) { - int newPos = pos + 8; - ensureSize(newPos); - data[pos] = (byte) (b & 0xFF); - data[pos + 1] = (byte) ((b >> 8) & 0xFF); - data[pos + 2] = (byte) ((b >> 16) & 0xFF); - data[pos + 3] = (byte) ((b >> 24) & 0xFF); - data[pos + 4] = (byte) ((b >> 32) & 0xFF); - data[pos + 5] = (byte) ((b >> 40) & 0xFF); - data[pos + 6] = (byte) ((b >> 48) & 0xFF); - data[pos + 7] = (byte) ((b >> 56) & 0xFF); - return newPos; - } - - @Override - public int getShort(int pos) { - return - (data[pos + 1] & 0xff) << 8 | - (data[pos + 0] & 0xff) << 0; - } - - @Override - public int getInt(int pos) { - return - (data[pos + 3] & 0xff) << 24 | - (data[pos + 2] & 0xff) << 16 | - (data[pos + 1] & 0xff) << 8 | - (data[pos + 0] & 0xff) << 0; - } - } -}
--- a/graal/com.oracle.max.asm/src/com/oracle/max/asm/Label.java Wed Oct 03 16:49:51 2012 +0200 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,83 +0,0 @@ -/* - * Copyright (c) 2009, 2011, Oracle and/or its affiliates. All rights reserved. - * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. - * - * This code is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 only, as - * published by the Free Software Foundation. - * - * This code is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License - * version 2 for more details (a copy is included in the LICENSE file that - * accompanied this code). - * - * You should have received a copy of the GNU General Public License version - * 2 along with this work; if not, write to the Free Software Foundation, - * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. - * - * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA - * or visit www.oracle.com if you need additional information or have any - * questions. - */ -package com.oracle.max.asm; - -import java.util.ArrayList; - -/** - * This class represents a label within assembly code. - */ -public final class Label { - private int position = -1; - - /** - * References to instructions that jump to this unresolved label. - * These instructions need to be patched when the label is bound - * using the {@link #patchInstructions(AbstractAssembler)} method. - */ - private ArrayList<Integer> patchPositions = new ArrayList<>(4); - - /** - * Returns the position of this label in the code buffer. - * @return the position - */ - public int position() { - assert position >= 0 : "Unbound label is being referenced"; - return position; - } - - public Label() { - } - - /** - * Binds the label to the specified position. - * @param pos the position - */ - protected void bind(int pos) { - this.position = pos; - assert isBound(); - } - - public boolean isBound() { - return position >= 0; - } - - public void addPatchAt(int branchLocation) { - assert !isBound() : "Label is already bound"; - patchPositions.add(branchLocation); - } - - protected void patchInstructions(AbstractAssembler masm) { - assert isBound() : "Label should be bound"; - int target = position; - for (int i = 0; i < patchPositions.size(); ++i) { - int pos = patchPositions.get(i); - masm.patchJumpTarget(pos, target); - } - } - - @Override - public String toString() { - return isBound() ? String.valueOf(position()) : "?"; - } -}
--- a/graal/com.oracle.max.asm/src/com/oracle/max/asm/NumUtil.java Wed Oct 03 16:49:51 2012 +0200 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,105 +0,0 @@ -/* - * Copyright (c) 2011, 2011, Oracle and/or its affiliates. All rights reserved. - * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. - * - * This code is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 only, as - * published by the Free Software Foundation. - * - * This code is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License - * version 2 for more details (a copy is included in the LICENSE file that - * accompanied this code). - * - * You should have received a copy of the GNU General Public License version - * 2 along with this work; if not, write to the Free Software Foundation, - * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. - * - * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA - * or visit www.oracle.com if you need additional information or have any - * questions. - */ -package com.oracle.max.asm; - -/** - * A collection of static utility functions that check ranges of numbers. - */ -public class NumUtil { - public static boolean isShiftCount(int x) { - return 0 <= x && x < 32; - } - - /** - * Determines if a given {@code int} value is the range of unsigned byte - * values. - */ - public static boolean isUByte(int x) { - return (x & 0xff) == x; - } - - /** - * Determines if a given {@code int} value is the range of signed byte - * values. - */ - public static boolean isByte(int x) { - return (byte) x == x; - } - - /** - * Determines if a given {@code long} value is the range of unsigned byte - * values. - */ - public static boolean isUByte(long x) { - return (x & 0xffL) == x; - } - - /** - * Determines if a given {@code long} value is the range of signed byte - * values. - */ - public static boolean isByte(long l) { - return (byte) l == l; - } - - /** - * Determines if a given {@code long} value is the range of unsigned int - * values. - */ - public static boolean isUInt(long x) { - return (x & 0xffffffffL) == x; - } - - /** - * Determines if a given {@code long} value is the range of signed int - * values. - */ - public static boolean isInt(long l) { - return (int) l == l; - } - - /** - * Determines if a given {@code int} value is the range of signed short - * values. - */ - public static boolean isShort(int x) { - return (short) x == x; - } - - public static boolean isUShort(int s) { - return s == (s & 0xFFFF); - } - - public static boolean is32bit(long x) { - return -0x80000000L <= x && x < 0x80000000L; - } - - public static short safeToShort(int v) { - assert isShort(v); - return (short) v; - } - - public static int roundUp(int number, int mod) { - return ((number + mod - 1) / mod) * mod; - } -}
--- a/mx/projects Wed Oct 03 16:49:51 2012 +0200 +++ b/mx/projects Wed Oct 03 17:42:12 2012 +0200 @@ -98,14 +98,14 @@ # graal.lir project@com.oracle.graal.lir@subDir=graal project@com.oracle.graal.lir@sourceDirs=src -project@com.oracle.graal.lir@dependencies=com.oracle.max.asm,com.oracle.graal.nodes +project@com.oracle.graal.lir@dependencies=com.oracle.graal.asm,com.oracle.graal.nodes project@com.oracle.graal.lir@checkstyle=com.oracle.graal.graph project@com.oracle.graal.lir@javaCompliance=1.7 # graal.lir.amd64 project@com.oracle.graal.lir.amd64@subDir=graal project@com.oracle.graal.lir.amd64@sourceDirs=src -project@com.oracle.graal.lir.amd64@dependencies=com.oracle.graal.lir,com.oracle.max.asm.amd64 +project@com.oracle.graal.lir.amd64@dependencies=com.oracle.graal.lir,com.oracle.graal.asm.amd64 project@com.oracle.graal.lir.amd64@checkstyle=com.oracle.graal.graph project@com.oracle.graal.lir.amd64@javaCompliance=1.7 @@ -227,19 +227,19 @@ project@com.oracle.graal.jtt@checkstyle=com.oracle.graal.graph project@com.oracle.graal.jtt@javaCompliance=1.7 -# max.asm -project@com.oracle.max.asm@subDir=graal -project@com.oracle.max.asm@sourceDirs=src -project@com.oracle.max.asm@dependencies=com.oracle.max.criutils -project@com.oracle.max.asm@checkstyle=com.oracle.graal.graph -project@com.oracle.max.asm@javaCompliance=1.7 +# graal.asm +project@com.oracle.graal.asm@subDir=graal +project@com.oracle.graal.asm@sourceDirs=src +project@com.oracle.graal.asm@dependencies=com.oracle.max.criutils +project@com.oracle.graal.asm@checkstyle=com.oracle.graal.graph +project@com.oracle.graal.asm@javaCompliance=1.7 -# max.asm.amd64 -project@com.oracle.max.asm.amd64@subDir=graal -project@com.oracle.max.asm.amd64@sourceDirs=src -project@com.oracle.max.asm.amd64@dependencies=com.oracle.max.asm -project@com.oracle.max.asm.amd64@checkstyle=com.oracle.graal.graph -project@com.oracle.max.asm.amd64@javaCompliance=1.7 +# graal.asm.amd64 +project@com.oracle.graal.asm.amd64@subDir=graal +project@com.oracle.graal.asm.amd64@sourceDirs=src +project@com.oracle.graal.asm.amd64@dependencies=com.oracle.graal.asm +project@com.oracle.graal.asm.amd64@checkstyle=com.oracle.graal.graph +project@com.oracle.graal.asm.amd64@javaCompliance=1.7 # max.criutils project@com.oracle.max.criutils@subDir=graal
--- a/src/share/vm/runtime/arguments.cpp Wed Oct 03 16:49:51 2012 +0200 +++ b/src/share/vm/runtime/arguments.cpp Wed Oct 03 17:42:12 2012 +0200 @@ -2148,7 +2148,7 @@ // modify its entries, not its name or shape const char* graal_projects[] = { #ifdef AMD64 - "com.oracle.max.asm.amd64", + "com.oracle.graal.asm.amd64", "com.oracle.graal.lir.amd64", "com.oracle.graal.compiler.amd64", "com.oracle.graal.hotspot.amd64", @@ -2159,7 +2159,7 @@ "com.oracle.graal.api.interpreter", "com.oracle.max.criutils", "com.oracle.graal.hotspot", - "com.oracle.max.asm", + "com.oracle.graal.asm", "com.oracle.graal.alloc", "com.oracle.graal.snippets", "com.oracle.graal.compiler",