Mercurial > hg > graal-compiler
view graal/com.oracle.graal.asm.amd64/src/com/oracle/graal/asm/amd64/AMD64MacroAssembler.java @ 12570:af39ea2dc39d
made ConstantNodes (optionally) not record their usages (GRAAL-508)
author | Doug Simon <doug.simon@oracle.com> |
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date | Thu, 24 Oct 2013 14:57:57 +0200 |
parents | 00b70a864d3b |
children | 2d76d0c85345 |
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/* * Copyright (c) 2009, 2013, 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.asm.amd64; import static com.oracle.graal.asm.amd64.AMD64AsmOptions.*; import com.oracle.graal.amd64.*; import com.oracle.graal.api.code.*; import com.oracle.graal.api.meta.*; /** * This class implements commonly used X86 code patterns. */ public class AMD64MacroAssembler extends AMD64Assembler { public AMD64MacroAssembler(TargetDescription target, RegisterConfig registerConfig) { super(target, registerConfig); } public final void xorptr(Register dst, Register src) { xorq(dst, src); } public final 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); } } public final void movptr(AMD64Address dst, int src) { movslq(dst, src); } public final void cmpptr(Register src1, Register src2) { cmpq(src1, src2); } public final void cmpptr(Register src1, AMD64Address src2) { cmpq(src1, src2); } public final 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 final void decrementl(AMD64Address 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 final 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 final void incrementl(AMD64Address 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 final void signExtendShort(Register reg) { movsxw(reg, reg); } public final void movflt(Register dst, Register src) { assert dst.getRegisterCategory() == AMD64.XMM && src.getRegisterCategory() == AMD64.XMM; if (UseXmmRegToRegMoveAll) { movaps(dst, src); } else { movss(dst, src); } } public final void movflt(Register dst, AMD64Address src) { assert dst.getRegisterCategory() == AMD64.XMM; movss(dst, src); } public final void movflt(AMD64Address dst, Register src) { assert src.getRegisterCategory() == AMD64.XMM; movss(dst, src); } public final void movdbl(Register dst, Register src) { assert dst.getRegisterCategory() == AMD64.XMM && src.getRegisterCategory() == AMD64.XMM; if (UseXmmRegToRegMoveAll) { movapd(dst, src); } else { movsd(dst, src); } } public final void movdbl(Register dst, AMD64Address src) { assert dst.getRegisterCategory() == AMD64.XMM; if (UseXmmLoadAndClearUpper) { movsd(dst, src); } else { movlpd(dst, src); } } /** * Non-atomic write of a 64-bit constant to memory. Do not use if the address might be a * volatile field! */ public final void movlong(AMD64Address dst, long src) { AMD64Address high = new AMD64Address(dst.getBase(), dst.getIndex(), dst.getScale(), dst.getDisplacement() + 4); movl(dst, (int) (src & 0xFFFFFFFF)); movl(high, (int) (src >> 32)); } public final void flog(Register dest, Register value, boolean base10) { if (base10) { fldlg2(); } else { fldln2(); } AMD64Address tmp = trigPrologue(value); fyl2x(); trigEpilogue(dest, tmp); } public final void fsin(Register dest, Register value) { AMD64Address tmp = trigPrologue(value); fsin(); trigEpilogue(dest, tmp); } public final void fcos(Register dest, Register value) { AMD64Address tmp = trigPrologue(value); fcos(); trigEpilogue(dest, tmp); } public final void ftan(Register dest, Register value) { AMD64Address tmp = trigPrologue(value); fptan(); fstp(0); // ftan pushes 1.0 in addition to the actual result, pop trigEpilogue(dest, tmp); } public final void fpop() { ffree(0); fincstp(); } private AMD64Address trigPrologue(Register value) { assert value.getRegisterCategory() == AMD64.XMM; AMD64Address tmp = new AMD64Address(AMD64.rsp); subq(AMD64.rsp, target.arch.getSizeInBytes(Kind.Double)); movsd(tmp, value); fldd(tmp); return tmp; } private void trigEpilogue(Register dest, AMD64Address tmp) { assert dest.getRegisterCategory() == AMD64.XMM; fstpd(tmp); movsd(dest, tmp); addq(AMD64.rsp, target.arch.getSizeInBytes(Kind.Double)); } /** * 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 final void save(CalleeSaveLayout csl, int frameToCSA) { for (Register r : csl.registers) { int offset = csl.offsetOf(r); movq(new AMD64Address(frameRegister, frameToCSA + offset), r); } } public final void restore(CalleeSaveLayout csl, int frameToCSA) { for (Register r : csl.registers) { int offset = csl.offsetOf(r); movq(r, new AMD64Address(frameRegister, frameToCSA + offset)); } } }