Mercurial > hg > graal-compiler
view graal/com.oracle.graal.compiler.amd64/src/com/oracle/graal/compiler/amd64/AMD64LIRGenerator.java @ 20844:3081a57f95fd
converted @MethodSubstitutions for java.lang.Math to MethodSubstitutionPlugins
moved support for AMD64 specific Math intrinsics into AMD64 specific name spaces
author | Doug Simon <doug.simon@oracle.com> |
---|---|
date | Wed, 08 Apr 2015 22:09:05 +0200 |
parents | f259c81821ef |
children | 00bbd2badfd3 |
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/* * Copyright (c) 2009, 2015, 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.graal.compiler.amd64; import static com.oracle.graal.api.code.ValueUtil.*; import static com.oracle.graal.asm.amd64.AMD64Assembler.AMD64BinaryArithmetic.*; import static com.oracle.graal.asm.amd64.AMD64Assembler.AMD64MOp.*; import static com.oracle.graal.asm.amd64.AMD64Assembler.AMD64RMOp.*; import static com.oracle.graal.asm.amd64.AMD64Assembler.AMD64Shift.*; import static com.oracle.graal.asm.amd64.AMD64Assembler.OperandSize.*; import static com.oracle.graal.lir.amd64.AMD64Arithmetic.*; import static com.oracle.graal.lir.amd64.AMD64MathIntrinsicOp.IntrinsicOpcode.*; import com.oracle.graal.amd64.*; import com.oracle.graal.api.code.*; import com.oracle.graal.api.meta.*; import com.oracle.graal.asm.*; import com.oracle.graal.asm.amd64.AMD64Address.Scale; import com.oracle.graal.asm.amd64.AMD64Assembler.AMD64BinaryArithmetic; import com.oracle.graal.asm.amd64.AMD64Assembler.AMD64MIOp; import com.oracle.graal.asm.amd64.AMD64Assembler.AMD64MOp; import com.oracle.graal.asm.amd64.AMD64Assembler.AMD64MROp; import com.oracle.graal.asm.amd64.AMD64Assembler.AMD64RMIOp; import com.oracle.graal.asm.amd64.AMD64Assembler.AMD64RMOp; import com.oracle.graal.asm.amd64.AMD64Assembler.AMD64Shift; import com.oracle.graal.asm.amd64.AMD64Assembler.ConditionFlag; import com.oracle.graal.asm.amd64.AMD64Assembler.OperandSize; import com.oracle.graal.asm.amd64.AMD64Assembler.SSEOp; import com.oracle.graal.compiler.common.*; import com.oracle.graal.compiler.common.calc.*; import com.oracle.graal.compiler.common.spi.*; import com.oracle.graal.lir.*; import com.oracle.graal.lir.StandardOp.JumpOp; import com.oracle.graal.lir.amd64.*; import com.oracle.graal.lir.amd64.AMD64Arithmetic.FPDivRemOp; import com.oracle.graal.lir.amd64.AMD64ControlFlow.BranchOp; import com.oracle.graal.lir.amd64.AMD64ControlFlow.CondMoveOp; import com.oracle.graal.lir.amd64.AMD64ControlFlow.FloatBranchOp; import com.oracle.graal.lir.amd64.AMD64ControlFlow.FloatCondMoveOp; import com.oracle.graal.lir.amd64.AMD64ControlFlow.ReturnOp; import com.oracle.graal.lir.amd64.AMD64ControlFlow.StrategySwitchOp; import com.oracle.graal.lir.amd64.AMD64ControlFlow.TableSwitchOp; import com.oracle.graal.lir.amd64.AMD64Move.LeaDataOp; import com.oracle.graal.lir.amd64.AMD64Move.LeaOp; import com.oracle.graal.lir.amd64.AMD64Move.MembarOp; import com.oracle.graal.lir.amd64.AMD64Move.MoveFromRegOp; import com.oracle.graal.lir.amd64.AMD64Move.MoveToRegOp; import com.oracle.graal.lir.amd64.AMD64Move.StackLeaOp; import com.oracle.graal.lir.gen.*; import com.oracle.graal.phases.util.*; /** * This class implements the AMD64 specific portion of the LIR generator. */ public abstract class AMD64LIRGenerator extends LIRGenerator implements AMD64ArithmeticLIRGenerator { private static final RegisterValue RCX_I = AMD64.rcx.asValue(LIRKind.value(Kind.Int)); private class AMD64SpillMoveFactory implements LIRGeneratorTool.SpillMoveFactory { @Override public LIRInstruction createMove(AllocatableValue result, Value input) { return AMD64LIRGenerator.this.createMove(result, input); } } public AMD64LIRGenerator(LIRKindTool lirKindTool, Providers providers, CallingConvention cc, LIRGenerationResult lirGenRes) { super(lirKindTool, providers, cc, lirGenRes); } public SpillMoveFactory getSpillMoveFactory() { return new AMD64SpillMoveFactory(); } @Override public boolean canInlineConstant(JavaConstant c) { switch (c.getKind()) { case Long: return NumUtil.isInt(c.asLong()) && !getCodeCache().needsDataPatch(c); case Object: return c.isNull(); default: return true; } } protected AMD64LIRInstruction createMove(AllocatableValue dst, Value src) { if (src instanceof AMD64AddressValue) { return new LeaOp(dst, (AMD64AddressValue) src); } else if (isRegister(src) || isStackSlotValue(dst)) { return new MoveFromRegOp(dst.getKind(), dst, src); } else { return new MoveToRegOp(dst.getKind(), dst, src); } } @Override public void emitMove(AllocatableValue dst, Value src) { append(createMove(dst, src)); } public void emitData(AllocatableValue dst, byte[] data) { append(new LeaDataOp(dst, data)); } @Override public AMD64AddressValue emitAddress(Value base, long displacement, Value index, int scale) { AllocatableValue baseRegister; long finalDisp = displacement; if (isConstant(base)) { if (asConstant(base).isNull()) { baseRegister = Value.ILLEGAL; } else if (asConstant(base).getKind() != Kind.Object && !getCodeCache().needsDataPatch(asConstant(base))) { finalDisp += asConstant(base).asLong(); baseRegister = Value.ILLEGAL; } else { baseRegister = load(base); } } else { baseRegister = asAllocatable(base); } AllocatableValue indexRegister; Scale scaleEnum; if (!index.equals(Value.ILLEGAL) && scale != 0) { scaleEnum = Scale.fromInt(scale); if (isConstant(index)) { finalDisp += asConstant(index).asLong() * scale; indexRegister = Value.ILLEGAL; } else if (scaleEnum == null) { /* Scale value that architecture cannot handle, so scale manually. */ Value longIndex = index.getKind() == Kind.Long ? index : emitSignExtend(index, 32, 64); if (CodeUtil.isPowerOf2(scale)) { indexRegister = emitShl(longIndex, JavaConstant.forLong(CodeUtil.log2(scale))); } else { indexRegister = emitMul(longIndex, JavaConstant.forLong(scale), false); } scaleEnum = Scale.Times1; } else { indexRegister = asAllocatable(index); } } else { indexRegister = Value.ILLEGAL; scaleEnum = Scale.Times1; } int displacementInt; if (NumUtil.isInt(finalDisp)) { displacementInt = (int) finalDisp; } else { displacementInt = 0; AllocatableValue displacementRegister = load(JavaConstant.forLong(finalDisp)); if (baseRegister.equals(Value.ILLEGAL)) { baseRegister = displacementRegister; } else if (indexRegister.equals(Value.ILLEGAL)) { indexRegister = displacementRegister; scaleEnum = Scale.Times1; } else { baseRegister = emitAdd(baseRegister, displacementRegister, false); } } LIRKind resultKind = getAddressKind(base, displacement, index); return new AMD64AddressValue(resultKind, baseRegister, indexRegister, scaleEnum, displacementInt); } public AMD64AddressValue asAddressValue(Value address) { if (address instanceof AMD64AddressValue) { return (AMD64AddressValue) address; } else { return emitAddress(address, 0, Value.ILLEGAL, 0); } } @Override public Variable emitAddress(StackSlotValue address) { Variable result = newVariable(LIRKind.value(target().wordKind)); append(new StackLeaOp(result, address)); return result; } @Override public void emitJump(LabelRef label) { assert label != null; append(new JumpOp(label)); } @Override public void emitCompareBranch(PlatformKind cmpKind, Value left, Value right, Condition cond, boolean unorderedIsTrue, LabelRef trueLabel, LabelRef falseLabel, double trueLabelProbability) { boolean mirrored = emitCompare(cmpKind, left, right); Condition finalCondition = mirrored ? cond.mirror() : cond; if (cmpKind == Kind.Float || cmpKind == Kind.Double) { append(new FloatBranchOp(finalCondition, unorderedIsTrue, trueLabel, falseLabel, trueLabelProbability)); } else { append(new BranchOp(finalCondition, trueLabel, falseLabel, trueLabelProbability)); } } public void emitCompareBranchMemory(Kind cmpKind, Value left, AMD64AddressValue right, LIRFrameState state, Condition cond, boolean unorderedIsTrue, LabelRef trueLabel, LabelRef falseLabel, double trueLabelProbability) { boolean mirrored = emitCompareMemory(cmpKind, left, right, state); Condition finalCondition = mirrored ? cond.mirror() : cond; if (cmpKind == Kind.Float || cmpKind == Kind.Double) { append(new FloatBranchOp(finalCondition, unorderedIsTrue, trueLabel, falseLabel, trueLabelProbability)); } else { append(new BranchOp(finalCondition, trueLabel, falseLabel, trueLabelProbability)); } } @Override public void emitOverflowCheckBranch(LabelRef overflow, LabelRef noOverflow, LIRKind cmpLIRKind, double overflowProbability) { append(new BranchOp(ConditionFlag.Overflow, overflow, noOverflow, overflowProbability)); } @Override public void emitIntegerTestBranch(Value left, Value right, LabelRef trueDestination, LabelRef falseDestination, double trueDestinationProbability) { emitIntegerTest(left, right); append(new BranchOp(Condition.EQ, trueDestination, falseDestination, trueDestinationProbability)); } @Override public Variable emitConditionalMove(PlatformKind cmpKind, Value left, Value right, Condition cond, boolean unorderedIsTrue, Value trueValue, Value falseValue) { boolean mirrored = emitCompare(cmpKind, left, right); Condition finalCondition = mirrored ? cond.mirror() : cond; Variable result = newVariable(trueValue.getLIRKind()); if (cmpKind == Kind.Float || cmpKind == Kind.Double) { append(new FloatCondMoveOp(result, finalCondition, unorderedIsTrue, load(trueValue), load(falseValue))); } else { append(new CondMoveOp(result, finalCondition, load(trueValue), loadNonConst(falseValue))); } return result; } @Override public Variable emitIntegerTestMove(Value left, Value right, Value trueValue, Value falseValue) { emitIntegerTest(left, right); Variable result = newVariable(trueValue.getLIRKind()); append(new CondMoveOp(result, Condition.EQ, load(trueValue), loadNonConst(falseValue))); return result; } private void emitIntegerTest(Value a, Value b) { assert a.getKind().isNumericInteger(); OperandSize size = a.getKind() == Kind.Long ? QWORD : DWORD; if (isConstant(b) && NumUtil.is32bit(asConstant(b).asLong())) { append(new AMD64BinaryConsumer.ConstOp(AMD64MIOp.TEST, size, asAllocatable(a), (int) asConstant(b).asLong())); } else if (isConstant(a) && NumUtil.is32bit(asConstant(a).asLong())) { append(new AMD64BinaryConsumer.ConstOp(AMD64MIOp.TEST, size, asAllocatable(b), (int) asConstant(a).asLong())); } else if (isAllocatableValue(b)) { append(new AMD64BinaryConsumer.Op(AMD64RMOp.TEST, size, asAllocatable(b), asAllocatable(a))); } else { append(new AMD64BinaryConsumer.Op(AMD64RMOp.TEST, size, asAllocatable(a), asAllocatable(b))); } } protected void emitCompareOp(PlatformKind cmpKind, Variable left, Value right) { OperandSize size; switch ((Kind) cmpKind) { case Byte: case Boolean: size = BYTE; break; case Short: case Char: size = WORD; break; case Int: size = DWORD; break; case Long: case Object: size = QWORD; break; case Float: append(new AMD64BinaryConsumer.Op(SSEOp.UCOMIS, PS, left, asAllocatable(right))); return; case Double: append(new AMD64BinaryConsumer.Op(SSEOp.UCOMIS, PD, left, asAllocatable(right))); return; default: throw GraalInternalError.shouldNotReachHere("unexpected kind: " + cmpKind); } if (isConstant(right)) { JavaConstant c = asConstant(right); if (c.isDefaultForKind()) { AMD64RMOp op = size == BYTE ? TESTB : TEST; append(new AMD64BinaryConsumer.Op(op, size, left, left)); return; } else if (NumUtil.is32bit(c.asLong())) { append(new AMD64BinaryConsumer.ConstOp(CMP, size, left, (int) c.asLong())); return; } } AMD64RMOp op = CMP.getRMOpcode(size); append(new AMD64BinaryConsumer.Op(op, size, left, asAllocatable(right))); } /** * This method emits the compare against memory instruction, and may reorder the operands. It * returns true if it did so. * * @param b the right operand of the comparison * @return true if the left and right operands were switched, false otherwise */ private boolean emitCompareMemory(Kind cmpKind, Value a, AMD64AddressValue b, LIRFrameState state) { OperandSize size; switch (cmpKind) { case Byte: case Boolean: size = BYTE; break; case Short: case Char: size = WORD; break; case Int: size = DWORD; break; case Long: case Object: size = QWORD; break; case Float: append(new AMD64BinaryConsumer.MemoryRMOp(SSEOp.UCOMIS, PS, asAllocatable(a), b, state)); return false; case Double: append(new AMD64BinaryConsumer.MemoryRMOp(SSEOp.UCOMIS, PD, asAllocatable(a), b, state)); return false; default: throw GraalInternalError.shouldNotReachHere("unexpected kind: " + cmpKind); } if (isConstant(a)) { return emitCompareMemoryConOp(size, asConstant(a), b, state); } else { return emitCompareRegMemoryOp(size, a, b, state); } } protected boolean emitCompareMemoryConOp(OperandSize size, JavaConstant a, AMD64AddressValue b, LIRFrameState state) { if (NumUtil.is32bit(a.asLong())) { append(new AMD64BinaryConsumer.MemoryConstOp(CMP, size, b, (int) a.asLong(), state)); return true; } else { return emitCompareRegMemoryOp(size, a, b, state); } } private boolean emitCompareRegMemoryOp(OperandSize size, Value a, AMD64AddressValue b, LIRFrameState state) { AMD64RMOp op = CMP.getRMOpcode(size); append(new AMD64BinaryConsumer.MemoryRMOp(op, size, asAllocatable(a), b, state)); return false; } /** * This method emits the compare instruction, and may reorder the operands. It returns true if * it did so. * * @param a the left operand of the comparison * @param b the right operand of the comparison * @return true if the left and right operands were switched, false otherwise */ private boolean emitCompare(PlatformKind cmpKind, Value a, Value b) { Variable left; Value right; boolean mirrored; if (LIRValueUtil.isVariable(b)) { left = load(b); right = loadNonConst(a); mirrored = true; } else { left = load(a); right = loadNonConst(b); mirrored = false; } emitCompareOp(cmpKind, left, right); return mirrored; } @Override public Variable emitNegate(Value inputVal) { AllocatableValue input = asAllocatable(inputVal); Variable result = newVariable(LIRKind.derive(input)); switch (input.getKind()) { case Int: append(new AMD64Unary.MOp(NEG, DWORD, result, input)); break; case Long: append(new AMD64Unary.MOp(NEG, QWORD, result, input)); break; case Float: append(new AMD64Binary.DataOp(SSEOp.XOR, PS, result, input, JavaConstant.forFloat(Float.intBitsToFloat(0x80000000)), 16)); break; case Double: append(new AMD64Binary.DataOp(SSEOp.XOR, PD, result, input, JavaConstant.forDouble(Double.longBitsToDouble(0x8000000000000000L)), 16)); break; default: throw GraalInternalError.shouldNotReachHere(); } return result; } @Override public Variable emitNot(Value inputVal) { AllocatableValue input = asAllocatable(inputVal); Variable result = newVariable(LIRKind.derive(input)); switch (input.getKind()) { case Int: append(new AMD64Unary.MOp(NOT, DWORD, result, input)); break; case Long: append(new AMD64Unary.MOp(NOT, QWORD, result, input)); break; default: throw GraalInternalError.shouldNotReachHere(); } return result; } private Variable emitBinary(AMD64BinaryArithmetic op, OperandSize size, boolean commutative, Value a, Value b) { if (isConstant(b)) { return emitBinaryConst(op, size, commutative, asAllocatable(a), asConstant(b)); } else if (commutative && isConstant(a)) { return emitBinaryConst(op, size, commutative, asAllocatable(b), asConstant(a)); } else { return emitBinaryVar(op.getRMOpcode(size), size, commutative, asAllocatable(a), asAllocatable(b)); } } private Variable emitBinary(AMD64RMOp op, OperandSize size, boolean commutative, Value a, Value b) { if (isConstant(b)) { return emitBinaryConst(op, size, asAllocatable(a), asConstant(b)); } else if (commutative && isConstant(a)) { return emitBinaryConst(op, size, asAllocatable(b), asConstant(a)); } else { return emitBinaryVar(op, size, commutative, asAllocatable(a), asAllocatable(b)); } } private Variable emitBinaryConst(AMD64BinaryArithmetic op, OperandSize size, boolean commutative, AllocatableValue a, JavaConstant b) { if (NumUtil.isInt(b.asLong())) { Variable result = newVariable(LIRKind.derive(a, b)); append(new AMD64Binary.ConstOp(op, size, result, a, (int) b.asLong())); return result; } else { return emitBinaryVar(op.getRMOpcode(size), size, commutative, a, asAllocatable(b)); } } private Variable emitBinaryConst(AMD64RMOp op, OperandSize size, AllocatableValue a, JavaConstant b) { Variable result = newVariable(LIRKind.derive(a, b)); append(new AMD64Binary.DataOp(op, size, result, a, b)); return result; } private Variable emitBinaryVar(AMD64RMOp op, OperandSize size, boolean commutative, AllocatableValue a, AllocatableValue b) { Variable result = newVariable(LIRKind.derive(a, b)); if (commutative) { append(new AMD64Binary.CommutativeOp(op, size, result, a, b)); } else { append(new AMD64Binary.Op(op, size, result, a, b)); } return result; } @Override public Variable emitAdd(Value a, Value b, boolean setFlags) { switch (a.getKind().getStackKind()) { case Int: return emitBinary(ADD, DWORD, true, a, b); case Long: return emitBinary(ADD, QWORD, true, a, b); case Float: return emitBinary(SSEOp.ADD, SS, true, a, b); case Double: return emitBinary(SSEOp.ADD, SD, true, a, b); default: throw GraalInternalError.shouldNotReachHere(); } } @Override public Variable emitSub(Value a, Value b, boolean setFlags) { switch (a.getKind().getStackKind()) { case Int: return emitBinary(SUB, DWORD, false, a, b); case Long: return emitBinary(SUB, QWORD, false, a, b); case Float: return emitBinary(SSEOp.SUB, SS, false, a, b); case Double: return emitBinary(SSEOp.SUB, SD, false, a, b); default: throw GraalInternalError.shouldNotReachHere(); } } private Variable emitIMULConst(OperandSize size, AllocatableValue a, JavaConstant b) { if (NumUtil.isInt(b.asLong())) { int imm = (int) b.asLong(); AMD64RMIOp op; if (NumUtil.isByte(imm)) { op = AMD64RMIOp.IMUL_SX; } else { op = AMD64RMIOp.IMUL; } Variable ret = newVariable(LIRKind.derive(a, b)); append(new AMD64Binary.RMIOp(op, size, ret, a, imm)); return ret; } else { return emitBinaryVar(AMD64RMOp.IMUL, size, true, a, asAllocatable(b)); } } private Variable emitIMUL(OperandSize size, Value a, Value b) { if (isConstant(b)) { return emitIMULConst(size, asAllocatable(a), asConstant(b)); } else if (isConstant(a)) { return emitIMULConst(size, asAllocatable(b), asConstant(a)); } else { return emitBinaryVar(AMD64RMOp.IMUL, size, true, asAllocatable(a), asAllocatable(b)); } } @Override public Variable emitMul(Value a, Value b, boolean setFlags) { switch (a.getKind().getStackKind()) { case Int: return emitIMUL(DWORD, a, b); case Long: return emitIMUL(QWORD, a, b); case Float: return emitBinary(SSEOp.MUL, SS, true, a, b); case Double: return emitBinary(SSEOp.MUL, SD, true, a, b); default: throw GraalInternalError.shouldNotReachHere(); } } private RegisterValue moveToReg(Register reg, Value v) { RegisterValue ret = reg.asValue(v.getLIRKind()); emitMove(ret, v); return ret; } private Value emitMulHigh(AMD64MOp opcode, OperandSize size, Value a, Value b) { AMD64MulDivOp mulHigh = append(new AMD64MulDivOp(opcode, size, LIRKind.derive(a, b), moveToReg(AMD64.rax, a), asAllocatable(b))); return emitMove(mulHigh.getHighResult()); } @Override public Value emitMulHigh(Value a, Value b) { switch (a.getKind().getStackKind()) { case Int: return emitMulHigh(AMD64MOp.IMUL, DWORD, a, b); case Long: return emitMulHigh(AMD64MOp.IMUL, QWORD, a, b); default: throw GraalInternalError.shouldNotReachHere(); } } @Override public Value emitUMulHigh(Value a, Value b) { switch (a.getKind().getStackKind()) { case Int: return emitMulHigh(AMD64MOp.MUL, DWORD, a, b); case Long: return emitMulHigh(AMD64MOp.MUL, QWORD, a, b); default: throw GraalInternalError.shouldNotReachHere(); } } public Value emitBinaryMemory(AMD64RMOp op, OperandSize size, AllocatableValue a, AMD64AddressValue location, LIRFrameState state) { Variable result = newVariable(LIRKind.derive(a)); append(new AMD64Binary.MemoryOp(op, size, result, a, location, state)); return result; } protected Value emitConvertMemoryOp(PlatformKind kind, AMD64RMOp op, OperandSize size, AMD64AddressValue address, LIRFrameState state) { Variable result = newVariable(LIRKind.value(kind)); append(new AMD64Unary.MemoryOp(op, size, result, address, state)); return result; } protected Value emitZeroExtendMemory(Kind memoryKind, int resultBits, AMD64AddressValue address, LIRFrameState state) { // Issue a zero extending load of the proper bit size and set the result to // the proper kind. Variable result = newVariable(LIRKind.value(resultBits == 32 ? Kind.Int : Kind.Long)); switch (memoryKind) { case Boolean: case Byte: append(new AMD64Unary.MemoryOp(MOVZXB, DWORD, result, address, state)); break; case Char: case Short: append(new AMD64Unary.MemoryOp(MOVZX, DWORD, result, address, state)); break; case Int: append(new AMD64Unary.MemoryOp(MOV, DWORD, result, address, state)); break; case Long: append(new AMD64Unary.MemoryOp(MOV, QWORD, result, address, state)); break; default: throw GraalInternalError.shouldNotReachHere(); } return result; } private AMD64MulDivOp emitIDIV(OperandSize size, Value a, Value b, LIRFrameState state) { LIRKind kind = LIRKind.derive(a, b); AMD64SignExtendOp sx = append(new AMD64SignExtendOp(size, kind, moveToReg(AMD64.rax, a))); return append(new AMD64MulDivOp(AMD64MOp.IDIV, size, kind, sx.getHighResult(), sx.getLowResult(), asAllocatable(b), state)); } private AMD64MulDivOp emitDIV(OperandSize size, Value a, Value b, LIRFrameState state) { LIRKind kind = LIRKind.derive(a, b); RegisterValue rax = moveToReg(AMD64.rax, a); RegisterValue rdx = AMD64.rdx.asValue(kind); append(new AMD64ClearRegisterOp(size, rdx)); return append(new AMD64MulDivOp(AMD64MOp.DIV, size, kind, rdx, rax, asAllocatable(b), state)); } public Value[] emitIntegerDivRem(Value a, Value b, LIRFrameState state) { AMD64MulDivOp op; switch (a.getKind().getStackKind()) { case Int: op = emitIDIV(DWORD, a, b, state); break; case Long: op = emitIDIV(QWORD, a, b, state); break; default: throw GraalInternalError.shouldNotReachHere(); } return new Value[]{emitMove(op.getQuotient()), emitMove(op.getRemainder())}; } @Override public Value emitDiv(Value a, Value b, LIRFrameState state) { switch (a.getKind().getStackKind()) { case Int: AMD64MulDivOp op = emitIDIV(DWORD, a, b, state); return emitMove(op.getQuotient()); case Long: AMD64MulDivOp lop = emitIDIV(QWORD, a, b, state); return emitMove(lop.getQuotient()); case Float: return emitBinary(SSEOp.DIV, SS, false, a, b); case Double: return emitBinary(SSEOp.DIV, SD, false, a, b); default: throw GraalInternalError.shouldNotReachHere(); } } @Override public Value emitRem(Value a, Value b, LIRFrameState state) { switch (a.getKind().getStackKind()) { case Int: AMD64MulDivOp op = emitIDIV(DWORD, a, b, state); return emitMove(op.getRemainder()); case Long: AMD64MulDivOp lop = emitIDIV(QWORD, a, b, state); return emitMove(lop.getRemainder()); case Float: { Variable result = newVariable(LIRKind.derive(a, b)); append(new FPDivRemOp(FREM, result, load(a), load(b))); return result; } case Double: { Variable result = newVariable(LIRKind.derive(a, b)); append(new FPDivRemOp(DREM, result, load(a), load(b))); return result; } default: throw GraalInternalError.shouldNotReachHere(); } } @Override public Variable emitUDiv(Value a, Value b, LIRFrameState state) { AMD64MulDivOp op; switch (a.getKind().getStackKind()) { case Int: op = emitDIV(DWORD, a, b, state); break; case Long: op = emitDIV(QWORD, a, b, state); break; default: throw GraalInternalError.shouldNotReachHere(); } return emitMove(op.getQuotient()); } @Override public Variable emitURem(Value a, Value b, LIRFrameState state) { AMD64MulDivOp op; switch (a.getKind().getStackKind()) { case Int: op = emitDIV(DWORD, a, b, state); break; case Long: op = emitDIV(QWORD, a, b, state); break; default: throw GraalInternalError.shouldNotReachHere(); } return emitMove(op.getRemainder()); } @Override public Variable emitAnd(Value a, Value b) { switch (a.getKind().getStackKind()) { case Int: return emitBinary(AND, DWORD, true, a, b); case Long: return emitBinary(AND, QWORD, true, a, b); case Float: return emitBinary(SSEOp.AND, PS, true, a, b); case Double: return emitBinary(SSEOp.AND, PD, true, a, b); default: throw GraalInternalError.shouldNotReachHere(); } } @Override public Variable emitOr(Value a, Value b) { switch (a.getKind().getStackKind()) { case Int: return emitBinary(OR, DWORD, true, a, b); case Long: return emitBinary(OR, QWORD, true, a, b); case Float: return emitBinary(SSEOp.OR, PS, true, a, b); case Double: return emitBinary(SSEOp.OR, PD, true, a, b); default: throw GraalInternalError.shouldNotReachHere(); } } @Override public Variable emitXor(Value a, Value b) { switch (a.getKind().getStackKind()) { case Int: return emitBinary(XOR, DWORD, true, a, b); case Long: return emitBinary(XOR, QWORD, true, a, b); case Float: return emitBinary(SSEOp.XOR, PS, true, a, b); case Double: return emitBinary(SSEOp.XOR, PD, true, a, b); default: throw GraalInternalError.shouldNotReachHere(); } } private Variable emitShift(AMD64Shift op, OperandSize size, Value a, Value b) { Variable result = newVariable(LIRKind.derive(a, b).changeType(a.getPlatformKind())); AllocatableValue input = asAllocatable(a); if (isConstant(b)) { JavaConstant c = asConstant(b); if (c.asLong() == 1) { append(new AMD64Unary.MOp(op.m1Op, size, result, input)); } else { /* * c is implicitly masked to 5 or 6 bits by the CPU, so casting it to (int) is * always correct, even without the NumUtil.is32bit() test. */ append(new AMD64Binary.ConstOp(op.miOp, size, result, input, (int) c.asLong())); } } else { emitMove(RCX_I, b); append(new AMD64ShiftOp(op.mcOp, size, result, input, RCX_I)); } return result; } @Override public Variable emitShl(Value a, Value b) { switch (a.getKind().getStackKind()) { case Int: return emitShift(SHL, DWORD, a, b); case Long: return emitShift(SHL, QWORD, a, b); default: throw GraalInternalError.shouldNotReachHere(); } } @Override public Variable emitShr(Value a, Value b) { switch (a.getKind().getStackKind()) { case Int: return emitShift(SAR, DWORD, a, b); case Long: return emitShift(SAR, QWORD, a, b); default: throw GraalInternalError.shouldNotReachHere(); } } @Override public Variable emitUShr(Value a, Value b) { switch (a.getKind().getStackKind()) { case Int: return emitShift(SHR, DWORD, a, b); case Long: return emitShift(SHR, QWORD, a, b); default: throw GraalInternalError.shouldNotReachHere(); } } public Variable emitRol(Value a, Value b) { switch (a.getKind().getStackKind()) { case Int: return emitShift(ROL, DWORD, a, b); case Long: return emitShift(ROL, QWORD, a, b); default: throw GraalInternalError.shouldNotReachHere(); } } public Variable emitRor(Value a, Value b) { switch (a.getKind().getStackKind()) { case Int: return emitShift(ROR, DWORD, a, b); case Long: return emitShift(ROR, QWORD, a, b); default: throw GraalInternalError.shouldNotReachHere(); } } private AllocatableValue emitConvertOp(LIRKind kind, AMD64RMOp op, OperandSize size, Value input) { Variable result = newVariable(kind); append(new AMD64Unary.RMOp(op, size, result, asAllocatable(input))); return result; } private AllocatableValue emitConvertOp(LIRKind kind, AMD64MROp op, OperandSize size, Value input) { Variable result = newVariable(kind); append(new AMD64Unary.MROp(op, size, result, asAllocatable(input))); return result; } @Override public Value emitReinterpret(LIRKind to, Value inputVal) { LIRKind from = inputVal.getLIRKind(); if (to.equals(from)) { return inputVal; } AllocatableValue input = asAllocatable(inputVal); /* * Conversions between integer to floating point types require moves between CPU and FPU * registers. */ Kind fromKind = (Kind) from.getPlatformKind(); switch ((Kind) to.getPlatformKind()) { case Int: switch (fromKind) { case Float: return emitConvertOp(to, AMD64MROp.MOVD, DWORD, input); } break; case Long: switch (fromKind) { case Double: return emitConvertOp(to, AMD64MROp.MOVQ, QWORD, input); } break; case Float: switch (fromKind) { case Int: return emitConvertOp(to, AMD64RMOp.MOVD, DWORD, input); } break; case Double: switch (fromKind) { case Long: return emitConvertOp(to, AMD64RMOp.MOVQ, QWORD, input); } break; } throw GraalInternalError.shouldNotReachHere(); } public Value emitFloatConvert(FloatConvert op, Value input) { switch (op) { case D2F: return emitConvertOp(LIRKind.derive(input).changeType(Kind.Float), SSEOp.CVTSD2SS, SD, input); case D2I: return emitConvertOp(LIRKind.derive(input).changeType(Kind.Int), SSEOp.CVTTSD2SI, DWORD, input); case D2L: return emitConvertOp(LIRKind.derive(input).changeType(Kind.Long), SSEOp.CVTTSD2SI, QWORD, input); case F2D: return emitConvertOp(LIRKind.derive(input).changeType(Kind.Double), SSEOp.CVTSS2SD, SS, input); case F2I: return emitConvertOp(LIRKind.derive(input).changeType(Kind.Int), SSEOp.CVTTSS2SI, DWORD, input); case F2L: return emitConvertOp(LIRKind.derive(input).changeType(Kind.Long), SSEOp.CVTTSS2SI, QWORD, input); case I2D: return emitConvertOp(LIRKind.derive(input).changeType(Kind.Double), SSEOp.CVTSI2SD, DWORD, input); case I2F: return emitConvertOp(LIRKind.derive(input).changeType(Kind.Float), SSEOp.CVTSI2SS, DWORD, input); case L2D: return emitConvertOp(LIRKind.derive(input).changeType(Kind.Double), SSEOp.CVTSI2SD, QWORD, input); case L2F: return emitConvertOp(LIRKind.derive(input).changeType(Kind.Float), SSEOp.CVTSI2SS, QWORD, input); default: throw GraalInternalError.shouldNotReachHere(); } } @Override public Value emitNarrow(Value inputVal, int bits) { if (inputVal.getKind() == Kind.Long && bits <= 32) { // TODO make it possible to reinterpret Long as Int in LIR without move return emitConvertOp(LIRKind.derive(inputVal).changeType(Kind.Int), AMD64RMOp.MOV, DWORD, inputVal); } else { return inputVal; } } @Override public Value emitSignExtend(Value inputVal, int fromBits, int toBits) { assert fromBits <= toBits && toBits <= 64; if (fromBits == toBits) { return inputVal; } else if (toBits > 32) { // sign extend to 64 bits switch (fromBits) { case 8: return emitConvertOp(LIRKind.derive(inputVal).changeType(Kind.Long), MOVSXB, QWORD, inputVal); case 16: return emitConvertOp(LIRKind.derive(inputVal).changeType(Kind.Long), MOVSX, QWORD, inputVal); case 32: return emitConvertOp(LIRKind.derive(inputVal).changeType(Kind.Long), MOVSXD, QWORD, inputVal); default: throw GraalInternalError.unimplemented("unsupported sign extension (" + fromBits + " bit -> " + toBits + " bit)"); } } else { // sign extend to 32 bits (smaller values are internally represented as 32 bit values) switch (fromBits) { case 8: return emitConvertOp(LIRKind.derive(inputVal).changeType(Kind.Int), MOVSXB, DWORD, inputVal); case 16: return emitConvertOp(LIRKind.derive(inputVal).changeType(Kind.Int), MOVSX, DWORD, inputVal); case 32: return inputVal; default: throw GraalInternalError.unimplemented("unsupported sign extension (" + fromBits + " bit -> " + toBits + " bit)"); } } } @Override public Value emitZeroExtend(Value inputVal, int fromBits, int toBits) { assert fromBits <= toBits && toBits <= 64; if (fromBits == toBits) { return inputVal; } else if (fromBits > 32) { assert inputVal.getKind() == Kind.Long; Variable result = newVariable(LIRKind.derive(inputVal).changeType(Kind.Long)); long mask = CodeUtil.mask(fromBits); append(new AMD64Binary.DataOp(AND.getRMOpcode(QWORD), QWORD, result, asAllocatable(inputVal), JavaConstant.forLong(mask))); return result; } else { assert inputVal.getKind().getStackKind() == Kind.Int; Variable result = newVariable(LIRKind.derive(inputVal).changeType(Kind.Int)); int mask = (int) CodeUtil.mask(fromBits); append(new AMD64Binary.DataOp(AND.getRMOpcode(DWORD), DWORD, result, asAllocatable(inputVal), JavaConstant.forInt(mask))); if (toBits > 32) { Variable longResult = newVariable(LIRKind.derive(inputVal).changeType(Kind.Long)); emitMove(longResult, result); return longResult; } else { return result; } } } @Override public void emitMembar(int barriers) { int necessaryBarriers = target().arch.requiredBarriers(barriers); if (target().isMP && necessaryBarriers != 0) { append(new MembarOp(necessaryBarriers)); } } public abstract void emitCCall(long address, CallingConvention nativeCallingConvention, Value[] args, int numberOfFloatingPointArguments); @Override protected void emitForeignCallOp(ForeignCallLinkage linkage, Value result, Value[] arguments, Value[] temps, LIRFrameState info) { long maxOffset = linkage.getMaxCallTargetOffset(); if (maxOffset != (int) maxOffset) { append(new AMD64Call.DirectFarForeignCallOp(linkage, result, arguments, temps, info)); } else { append(new AMD64Call.DirectNearForeignCallOp(linkage, result, arguments, temps, info)); } } @Override public Variable emitBitCount(Value value) { Variable result = newVariable(LIRKind.derive(value).changeType(Kind.Int)); if (value.getKind().getStackKind() == Kind.Int) { append(new AMD64Unary.RMOp(POPCNT, DWORD, result, asAllocatable(value))); } else { append(new AMD64Unary.RMOp(POPCNT, QWORD, result, asAllocatable(value))); } return result; } @Override public Variable emitBitScanForward(Value value) { Variable result = newVariable(LIRKind.derive(value).changeType(Kind.Int)); append(new AMD64Unary.RMOp(BSF, QWORD, result, asAllocatable(value))); return result; } @Override public Variable emitBitScanReverse(Value value) { Variable result = newVariable(LIRKind.derive(value).changeType(Kind.Int)); if (value.getKind().getStackKind() == Kind.Int) { append(new AMD64Unary.RMOp(BSR, DWORD, result, asAllocatable(value))); } else { append(new AMD64Unary.RMOp(BSR, QWORD, result, asAllocatable(value))); } return result; } public Value emitCountLeadingZeros(Value value) { Variable result = newVariable(LIRKind.derive(value).changeType(Kind.Int)); if (value.getKind().getStackKind() == Kind.Int) { append(new AMD64Unary.RMOp(LZCNT, DWORD, result, asAllocatable(value))); } else { append(new AMD64Unary.RMOp(LZCNT, QWORD, result, asAllocatable(value))); } return result; } public Value emitCountTrailingZeros(Value value) { Variable result = newVariable(LIRKind.derive(value).changeType(Kind.Int)); if (value.getKind().getStackKind() == Kind.Int) { append(new AMD64Unary.RMOp(TZCNT, DWORD, result, asAllocatable(value))); } else { append(new AMD64Unary.RMOp(TZCNT, QWORD, result, asAllocatable(value))); } return result; } @Override public Value emitMathAbs(Value input) { Variable result = newVariable(LIRKind.derive(input)); switch (input.getKind()) { case Float: append(new AMD64Binary.DataOp(SSEOp.AND, PS, result, asAllocatable(input), JavaConstant.forFloat(Float.intBitsToFloat(0x7FFFFFFF)), 16)); break; case Double: append(new AMD64Binary.DataOp(SSEOp.AND, PD, result, asAllocatable(input), JavaConstant.forDouble(Double.longBitsToDouble(0x7FFFFFFFFFFFFFFFL)), 16)); break; default: throw GraalInternalError.shouldNotReachHere(); } return result; } @Override public Value emitMathSqrt(Value input) { Variable result = newVariable(LIRKind.derive(input)); switch (input.getKind()) { case Float: append(new AMD64Unary.RMOp(SSEOp.SQRT, SS, result, asAllocatable(input))); break; case Double: append(new AMD64Unary.RMOp(SSEOp.SQRT, SD, result, asAllocatable(input))); break; default: throw GraalInternalError.shouldNotReachHere(); } return result; } @Override public Value emitMathLog(Value input, boolean base10) { Variable result = newVariable(LIRKind.derive(input)); append(new AMD64MathIntrinsicOp(base10 ? LOG10 : LOG, result, asAllocatable(input))); return result; } @Override public Value emitMathCos(Value input) { Variable result = newVariable(LIRKind.derive(input)); append(new AMD64MathIntrinsicOp(COS, result, asAllocatable(input))); return result; } @Override public Value emitMathSin(Value input) { Variable result = newVariable(LIRKind.derive(input)); append(new AMD64MathIntrinsicOp(SIN, result, asAllocatable(input))); return result; } @Override public Value emitMathTan(Value input) { Variable result = newVariable(LIRKind.derive(input)); append(new AMD64MathIntrinsicOp(TAN, result, asAllocatable(input))); return result; } @Override public Variable emitByteSwap(Value input) { Variable result = newVariable(LIRKind.derive(input)); append(new AMD64ByteSwapOp(result, input)); return result; } @Override public Variable emitArrayEquals(Kind kind, Value array1, Value array2, Value length) { Variable result = newVariable(LIRKind.value(Kind.Int)); append(new AMD64ArrayEqualsOp(this, kind, result, array1, array2, asAllocatable(length))); return result; } @Override public void emitReturn(Value input) { AllocatableValue operand = Value.ILLEGAL; if (input != null) { operand = resultOperandFor(input.getLIRKind()); emitMove(operand, input); } append(new ReturnOp(operand)); } @Override public void emitStrategySwitch(SwitchStrategy strategy, Variable key, LabelRef[] keyTargets, LabelRef defaultTarget) { // a temp is needed for loading object constants boolean needsTemp = key.getKind() == Kind.Object; append(new StrategySwitchOp(strategy, keyTargets, defaultTarget, key, needsTemp ? newVariable(key.getLIRKind()) : Value.ILLEGAL)); } @Override protected void emitTableSwitch(int lowKey, LabelRef defaultTarget, LabelRef[] targets, Value key) { append(new TableSwitchOp(lowKey, defaultTarget, targets, key, newVariable(LIRKind.value(target().wordKind)), newVariable(key.getLIRKind()))); } }