Mercurial > hg > graal-compiler
view graal/com.oracle.graal.lir.sparc/src/com/oracle/graal/lir/sparc/SPARCCall.java @ 17237:c990248e816e
[SPARC] changed register counts due to hint
author | Stefan Anzinger <stefan.anzinger@oracle.com> |
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date | Fri, 26 Sep 2014 10:40:34 -0700 |
parents | 5a7b82c1514e |
children | 35ae3e916582 |
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/* * Copyright (c) 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.lir.sparc; import static com.oracle.graal.api.code.ValueUtil.*; import static com.oracle.graal.lir.LIRInstruction.OperandFlag.*; import static com.oracle.graal.sparc.SPARC.*; import com.oracle.graal.api.code.*; import com.oracle.graal.api.meta.*; import com.oracle.graal.asm.sparc.*; import com.oracle.graal.asm.sparc.SPARCAssembler.Call; import com.oracle.graal.asm.sparc.SPARCAssembler.Jmpl; import com.oracle.graal.asm.sparc.SPARCMacroAssembler.Jmp; import com.oracle.graal.asm.sparc.SPARCMacroAssembler.Nop; import com.oracle.graal.asm.sparc.SPARCMacroAssembler.Sethix; import com.oracle.graal.compiler.common.*; import com.oracle.graal.lir.*; import com.oracle.graal.lir.asm.*; public class SPARCCall { public abstract static class CallOp extends SPARCLIRInstruction { @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 /* implements SPARCDelayedControlTransfer */{ private boolean emitted = false; private int before = -1; public DirectCallOp(ResolvedJavaMethod callTarget, Value result, Value[] parameters, Value[] temps, LIRFrameState state) { super(callTarget, result, parameters, temps, state); } @Override public final void emitCode(CompilationResultBuilder crb, SPARCMacroAssembler masm) { if (!emitted) { emitCallPrefixCode(crb, masm); directCall(crb, masm, callTarget, null, true, state); } else { int after = masm.position(); if (after - before == 4) { new Nop().emit(masm); } else if (after - before == 8) { // everything is fine; } else { GraalInternalError.shouldNotReachHere("" + (after - before)); } after = masm.position(); crb.recordDirectCall(before, after, callTarget, state); crb.recordExceptionHandlers(after, state); masm.ensureUniquePC(); } } @SuppressWarnings("unused") public void emitCallPrefixCode(CompilationResultBuilder crb, SPARCMacroAssembler masm) { // } public void emitControlTransfer(CompilationResultBuilder crb, SPARCMacroAssembler masm) { assert !emitted; emitCallPrefixCode(crb, masm); before = masm.position(); new Call(0).emit(masm); emitted = true; } public void resetState() { emitted = false; before = -1; } } @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(CompilationResultBuilder crb, SPARCMacroAssembler masm) { indirectCall(crb, 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(CompilationResultBuilder crb, SPARCMacroAssembler masm) { directCall(crb, masm, callTarget, null, false, state); } } @Opcode("FAR_FOREIGN_CALL") public static class DirectFarForeignCallOp extends ForeignCallOp { public DirectFarForeignCallOp(ForeignCallLinkage callTarget, Value result, Value[] parameters, Value[] temps, LIRFrameState state) { super(callTarget, result, parameters, temps, state); } @Override public void emitCode(CompilationResultBuilder crb, SPARCMacroAssembler masm) { directCall(crb, masm, callTarget, o7, false, state); } } public static void directCall(CompilationResultBuilder crb, SPARCMacroAssembler masm, InvokeTarget callTarget, Register scratch, boolean align, LIRFrameState info) { if (align) { // We don't need alignment on SPARC. } int before = masm.position(); if (scratch != null) { // offset might not fit a 30-bit displacement, generate an // indirect call with a 64-bit immediate new Sethix(0L, scratch, true).emit(masm); new Jmpl(scratch, 0, o7).emit(masm); } else { new Call(0).emit(masm); } new Nop().emit(masm); // delay slot int after = masm.position(); crb.recordDirectCall(before, after, callTarget, info); crb.recordExceptionHandlers(after, info); masm.ensureUniquePC(); } public static void indirectJmp(CompilationResultBuilder crb, SPARCMacroAssembler masm, Register dst, InvokeTarget target) { int before = masm.position(); new Sethix(0L, dst, true).emit(masm); new Jmp(new SPARCAddress(dst, 0)).emit(masm); new Nop().emit(masm); // delay slot int after = masm.position(); crb.recordIndirectCall(before, after, target, null); masm.ensureUniquePC(); } public static void indirectCall(CompilationResultBuilder crb, SPARCMacroAssembler masm, Register dst, InvokeTarget callTarget, LIRFrameState info) { int before = masm.position(); new Jmpl(dst, 0, o7).emit(masm); new Nop().emit(masm); // delay slot int after = masm.position(); crb.recordIndirectCall(before, after, callTarget, info); crb.recordExceptionHandlers(after, info); masm.ensureUniquePC(); } }