Mercurial > hg > truffle
view graal/com.oracle.graal.lir.amd64/src/com/oracle/graal/lir/amd64/AMD64Call.java @ 10072:62ea8789b88a
Remove leaf calls for G1 calls
author | Christos Kotselidis <christos.kotselidis@oracle.com> |
---|---|
date | Mon, 17 Jun 2013 20:39:24 +0200 |
parents | fbeda9df497d |
children | 2d3d3d36ab3c |
line wrap: on
line source
/* * Copyright (c) 2011, 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.graal.lir.amd64; import static com.oracle.graal.api.code.ValueUtil.*; import static com.oracle.graal.lir.LIRInstruction.OperandFlag.*; import com.oracle.graal.api.code.*; import com.oracle.graal.api.meta.*; import com.oracle.graal.asm.amd64.*; import com.oracle.graal.lir.*; import com.oracle.graal.lir.asm.*; import com.oracle.graal.nodes.spi.*; public class AMD64Call { public abstract static class CallOp extends AMD64LIRInstruction { @Def({REG, ILLEGAL}) protected Value result; @Use({REG, STACK}) protected Value[] parameters; @Temp protected Value[] temps; @State protected LIRFrameState state; public CallOp(Value result, Value[] parameters, Value[] temps, LIRFrameState state) { this.result = result; this.parameters = parameters; this.state = state; this.temps = temps; assert temps != null; } @Override public boolean destroysCallerSavedRegisters() { return true; } } public abstract static class MethodCallOp extends CallOp { protected final ResolvedJavaMethod callTarget; public MethodCallOp(ResolvedJavaMethod callTarget, Value result, Value[] parameters, Value[] temps, LIRFrameState state) { super(result, parameters, temps, state); this.callTarget = callTarget; } } @Opcode("CALL_DIRECT") public static class DirectCallOp extends MethodCallOp { public DirectCallOp(ResolvedJavaMethod callTarget, Value result, Value[] parameters, Value[] temps, LIRFrameState state) { super(callTarget, result, parameters, temps, state); } @Override public void emitCode(TargetMethodAssembler tasm, AMD64MacroAssembler masm) { directCall(tasm, masm, callTarget, null, true, state); } } @Opcode("CALL_INDIRECT") public static class IndirectCallOp extends MethodCallOp { @Use({REG}) protected Value targetAddress; public IndirectCallOp(ResolvedJavaMethod callTarget, Value result, Value[] parameters, Value[] temps, Value targetAddress, LIRFrameState state) { super(callTarget, result, parameters, temps, state); this.targetAddress = targetAddress; } @Override public void emitCode(TargetMethodAssembler tasm, AMD64MacroAssembler masm) { indirectCall(tasm, masm, asRegister(targetAddress), callTarget, state); } @Override protected void verify() { super.verify(); assert isRegister(targetAddress) : "The current register allocator cannot handle variables to be used at call sites, it must be in a fixed register for now"; } } public abstract static class ForeignCallOp extends CallOp { protected final ForeignCallLinkage callTarget; public ForeignCallOp(ForeignCallLinkage callTarget, Value result, Value[] parameters, Value[] temps, LIRFrameState state) { super(result, parameters, temps, state); this.callTarget = callTarget; } @Override public boolean destroysCallerSavedRegisters() { return callTarget.destroysRegisters(); } } @Opcode("NEAR_FOREIGN_CALL") public static class DirectNearForeignCallOp extends ForeignCallOp { public DirectNearForeignCallOp(ForeignCallLinkage linkage, Value result, Value[] parameters, Value[] temps, LIRFrameState state) { super(linkage, result, parameters, temps, state); } @Override public void emitCode(TargetMethodAssembler tasm, AMD64MacroAssembler masm) { directCall(tasm, masm, callTarget, null, false, state); } } @Opcode("FAR_FOREIGN_CALL") public static class DirectFarForeignCallOp extends ForeignCallOp { @Temp({REG}) protected AllocatableValue callTemp; public DirectFarForeignCallOp(LIRGeneratorTool gen, ForeignCallLinkage callTarget, Value result, Value[] parameters, Value[] temps, LIRFrameState state) { super(callTarget, result, parameters, temps, state); callTemp = gen.newVariable(Kind.Long); } @Override public void emitCode(TargetMethodAssembler tasm, AMD64MacroAssembler masm) { directCall(tasm, masm, callTarget, ((RegisterValue) callTemp).getRegister(), false, state); } } public static void directCall(TargetMethodAssembler tasm, AMD64MacroAssembler masm, InvokeTarget callTarget, Register scratch, boolean align, LIRFrameState info) { if (align) { emitAlignmentForDirectCall(tasm, masm); } int before = masm.codeBuffer.position(); if (scratch != null) { // offset might not fit a 32-bit immediate, generate an // indirect call with a 64-bit immediate masm.movq(scratch, 0L); masm.call(scratch); } else { masm.call(); } int after = masm.codeBuffer.position(); tasm.recordDirectCall(before, after, callTarget, info); tasm.recordExceptionHandlers(after, info); masm.ensureUniquePC(); } protected static void emitAlignmentForDirectCall(TargetMethodAssembler tasm, AMD64MacroAssembler masm) { // make sure that the displacement word of the call ends up word aligned int offset = masm.codeBuffer.position(); offset += tasm.target.arch.getMachineCodeCallDisplacementOffset(); int modulus = tasm.target.wordSize; if (offset % modulus != 0) { masm.nop(modulus - offset % modulus); } } public static void directJmp(TargetMethodAssembler tasm, AMD64MacroAssembler masm, InvokeTarget target) { int before = masm.codeBuffer.position(); masm.jmp(0, true); int after = masm.codeBuffer.position(); tasm.recordDirectCall(before, after, target, null); masm.ensureUniquePC(); } public static void indirectCall(TargetMethodAssembler tasm, AMD64MacroAssembler masm, Register dst, InvokeTarget callTarget, LIRFrameState info) { int before = masm.codeBuffer.position(); masm.call(dst); int after = masm.codeBuffer.position(); tasm.recordIndirectCall(before, after, callTarget, info); tasm.recordExceptionHandlers(after, info); masm.ensureUniquePC(); } }