Mercurial > hg > graal-jvmci-8
view graal/com.oracle.graal.hotspot.sparc/src/com/oracle/graal/hotspot/sparc/SPARCHotSpotBackend.java @ 12045:0fc653a9e019
made GraalCodeCacheProvider independent of CodeCacheProvider and renamed the former to LoweringProvider (GRAAL-511)
author | Doug Simon <doug.simon@oracle.com> |
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date | Thu, 10 Oct 2013 20:50:54 +0200 |
parents | 23ccaa863eda |
children | 9c2111d10e40 |
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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.hotspot.sparc; import java.util.*; import sun.misc.*; import com.oracle.graal.api.code.*; import com.oracle.graal.api.meta.*; import com.oracle.graal.asm.*; import com.oracle.graal.asm.sparc.*; import com.oracle.graal.asm.sparc.SPARCAssembler.*; import com.oracle.graal.compiler.gen.LIRGenerator; import com.oracle.graal.hotspot.*; import com.oracle.graal.hotspot.bridge.*; import com.oracle.graal.hotspot.meta.*; import com.oracle.graal.hotspot.stubs.Stub; import com.oracle.graal.lir.*; import com.oracle.graal.lir.asm.*; import com.oracle.graal.lir.sparc.*; import com.oracle.graal.nodes.*; import static com.oracle.graal.sparc.SPARC.*; import static com.oracle.graal.asm.sparc.SPARCMacroAssembler.*; import static com.oracle.graal.api.code.CallingConvention.Type.*; import static com.oracle.graal.api.code.ValueUtil.*; import static com.oracle.graal.phases.GraalOptions.*; import static java.lang.reflect.Modifier.*; /** * HotSpot SPARC specific backend. */ public class SPARCHotSpotBackend extends HotSpotBackend { private static final Unsafe unsafe = Unsafe.getUnsafe(); public SPARCHotSpotBackend(HotSpotRuntime runtime, TargetDescription target) { super(runtime, target); } @Override public boolean shouldAllocateRegisters() { return true; } @Override public FrameMap newFrameMap() { return new SPARCFrameMap(getRuntime(), target, getRuntime().lookupRegisterConfig()); } @Override public LIRGenerator newLIRGenerator(StructuredGraph graph, FrameMap frameMap, CallingConvention cc, LIR lir) { return new SPARCHotSpotLIRGenerator(graph, getRuntime(), getRuntime(), target, frameMap, cc, lir); } /** * Emits code to do stack overflow checking. * * @param afterFrameInit specifies if the stack pointer has already been adjusted to allocate * the current frame */ protected static void emitStackOverflowCheck(TargetMethodAssembler tasm, boolean afterFrameInit) { if (StackShadowPages.getValue() > 0) { SPARCMacroAssembler masm = (SPARCMacroAssembler) tasm.asm; final int frameSize = tasm.frameMap.totalFrameSize(); if (frameSize > 0) { int lastFramePage = frameSize / unsafe.pageSize(); // emit multiple stack bangs for methods with frames larger than a page for (int i = 0; i <= lastFramePage; i++) { int disp = (i + StackShadowPages.getValue()) * unsafe.pageSize(); if (afterFrameInit) { disp -= frameSize; } tasm.blockComment("[stack overflow check]"); // Use SPARCAddress to get the final displacement including the stack bias. SPARCAddress address = new SPARCAddress(sp, -disp); if (SPARCAssembler.isSimm13(address.getDisplacement())) { new Stx(g0, address).emit(masm); } else { new Setx(address.getDisplacement(), g3).emit(masm); new Stx(g0, new SPARCAddress(sp, g3)).emit(masm); } } } } } public class HotSpotFrameContext implements FrameContext { final boolean isStub; HotSpotFrameContext(boolean isStub) { this.isStub = isStub; } @Override public void enter(TargetMethodAssembler tasm) { final int frameSize = tasm.frameMap.totalFrameSize(); SPARCMacroAssembler masm = (SPARCMacroAssembler) tasm.asm; if (!isStub) { emitStackOverflowCheck(tasm, false); } new Save(sp, -frameSize, sp).emit(masm); if (ZapStackOnMethodEntry.getValue()) { final int slotSize = 8; for (int i = 0; i < frameSize / slotSize; ++i) { // 0xC1C1C1C1 new Stx(g0, new SPARCAddress(sp, i * slotSize)).emit(masm); } } } @Override public void leave(TargetMethodAssembler tasm) { SPARCMacroAssembler masm = (SPARCMacroAssembler) tasm.asm; new RestoreWindow().emit(masm); } } @Override protected AbstractAssembler createAssembler(FrameMap frameMap) { return new SPARCMacroAssembler(target, frameMap.registerConfig); } @Override public TargetMethodAssembler newAssembler(LIRGenerator lirGen, CompilationResult compilationResult) { SPARCHotSpotLIRGenerator gen = (SPARCHotSpotLIRGenerator) lirGen; FrameMap frameMap = gen.frameMap; assert gen.deoptimizationRescueSlot == null || frameMap.frameNeedsAllocating() : "method that can deoptimize must have a frame"; Stub stub = gen.getStub(); AbstractAssembler masm = createAssembler(frameMap); // On SPARC we always use stack frames. HotSpotFrameContext frameContext = new HotSpotFrameContext(stub != null); TargetMethodAssembler tasm = new TargetMethodAssembler(target, getRuntime(), frameMap, masm, frameContext, compilationResult); tasm.setFrameSize(frameMap.frameSize()); StackSlot deoptimizationRescueSlot = gen.deoptimizationRescueSlot; if (deoptimizationRescueSlot != null && stub == null) { tasm.compilationResult.setCustomStackAreaOffset(frameMap.offsetForStackSlot(deoptimizationRescueSlot)); } if (stub != null) { // SPARC stubs always enter a frame which saves the registers. final Set<Register> definedRegisters = new HashSet<>(); stub.initDestroyedRegisters(definedRegisters); } return tasm; } @Override public void emitCode(TargetMethodAssembler tasm, LIRGenerator lirGen, ResolvedJavaMethod installedCodeOwner) { SPARCMacroAssembler masm = (SPARCMacroAssembler) tasm.asm; FrameMap frameMap = tasm.frameMap; RegisterConfig regConfig = frameMap.registerConfig; HotSpotVMConfig config = getRuntime().config; Label unverifiedStub = installedCodeOwner == null || isStatic(installedCodeOwner.getModifiers()) ? null : new Label(); // Emit the prefix if (unverifiedStub != null) { tasm.recordMark(Marks.MARK_UNVERIFIED_ENTRY); // We need to use JavaCall here because we haven't entered the frame yet. CallingConvention cc = regConfig.getCallingConvention(JavaCall, null, new JavaType[]{getRuntime().lookupJavaType(Object.class)}, target, false); Register inlineCacheKlass = g5; // see MacroAssembler::ic_call Register scratch = g3; Register receiver = asRegister(cc.getArgument(0)); SPARCAddress src = new SPARCAddress(receiver, config.hubOffset); new Ldx(src, scratch).emit(masm); new Cmp(scratch, inlineCacheKlass).emit(masm); new Bpne(CC.Xcc, unverifiedStub).emit(masm); new Nop().emit(masm); // delay slot } masm.align(config.codeEntryAlignment); tasm.recordMark(Marks.MARK_OSR_ENTRY); tasm.recordMark(Marks.MARK_VERIFIED_ENTRY); // Emit code for the LIR lirGen.lir.emitCode(tasm); HotSpotFrameContext frameContext = (HotSpotFrameContext) tasm.frameContext; if (frameContext != null && !frameContext.isStub) { tasm.recordMark(Marks.MARK_EXCEPTION_HANDLER_ENTRY); SPARCCall.directCall(tasm, masm, getRuntime().lookupForeignCall(EXCEPTION_HANDLER), null, false, null); tasm.recordMark(Marks.MARK_DEOPT_HANDLER_ENTRY); SPARCCall.directCall(tasm, masm, getRuntime().lookupForeignCall(DEOPT_HANDLER), null, false, null); } else { // No need to emit the stubs for entries back into the method since // it has no calls that can cause such "return" entries assert !frameMap.accessesCallerFrame() : lirGen.getGraph(); } if (unverifiedStub != null) { masm.bind(unverifiedStub); Register scratch = g3; SPARCCall.indirectJmp(tasm, masm, scratch, getRuntime().lookupForeignCall(IC_MISS_HANDLER)); } } }