Mercurial > hg > graal-compiler
diff graal/GraalCompiler/src/com/sun/c1x/C1XCompilation.java @ 2509:16b9a8b5ad39
Renamings Runtime=>GraalRuntime and Compiler=>GraalCompiler
author | Thomas Wuerthinger <thomas@wuerthinger.net> |
---|---|
date | Wed, 27 Apr 2011 11:50:44 +0200 |
parents | graal/Compiler/src/com/sun/c1x/C1XCompilation.java@9ec15d6914ca |
children | 4fdef1464592 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/graal/GraalCompiler/src/com/sun/c1x/C1XCompilation.java Wed Apr 27 11:50:44 2011 +0200 @@ -0,0 +1,354 @@ +/* + * Copyright (c) 2009, 2011, 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.sun.c1x; + +import java.util.*; + +import com.sun.c1x.alloc.*; +import com.sun.c1x.asm.*; +import com.sun.c1x.gen.*; +import com.sun.c1x.gen.LIRGenerator.DeoptimizationStub; +import com.sun.c1x.graph.*; +import com.sun.c1x.ir.*; +import com.sun.c1x.lir.*; +import com.sun.c1x.observer.*; +import com.sun.c1x.value.*; +import com.sun.cri.bytecode.*; +import com.sun.cri.ci.*; +import com.sun.cri.ri.*; + +/** + * This class encapsulates global information about the compilation of a particular method, + * including a reference to the runtime, statistics about the compiled code, etc. + * + * @author Ben L. Titzer + */ +public final class C1XCompilation { + + private static ThreadLocal<C1XCompilation> currentCompilation = new ThreadLocal<C1XCompilation>(); + + public final C1XCompiler compiler; + public final CiTarget target; + public final RiRuntime runtime; + public final RiMethod method; + public final RiRegisterConfig registerConfig; + public final CiStatistics stats; + public final int osrBCI; + public final CiAssumptions assumptions = new CiAssumptions(); + public final FrameState placeholderState; + + private boolean hasExceptionHandlers; + private final C1XCompilation parent; + + /** + * @see #setNotTypesafe() + * @see #isTypesafe() + */ + private boolean typesafe = true; + + private int nextID = 1; + + private FrameMap frameMap; + private AbstractAssembler assembler; + + private IR hir; + + private LIRGenerator lirGenerator; + + /** + * Creates a new compilation for the specified method and runtime. + * + * @param compiler the compiler + * @param method the method to be compiled or {@code null} if generating code for a stub + * @param osrBCI the bytecode index for on-stack replacement, if requested + * @param stats externally supplied statistics object to be used if not {@code null} + */ + public C1XCompilation(C1XCompiler compiler, RiMethod method, int osrBCI, CiStatistics stats) { + this.parent = currentCompilation.get(); + currentCompilation.set(this); + this.compiler = compiler; + this.target = compiler.target; + this.runtime = compiler.runtime; + this.method = method; + this.osrBCI = osrBCI; + this.stats = stats == null ? new CiStatistics() : stats; + this.registerConfig = method == null ? compiler.globalStubRegisterConfig : runtime.getRegisterConfig(method); + this.placeholderState = method != null && method.minimalDebugInfo() ? new MutableFrameState(new IRScope(null, null, method, -1), 0, 0, 0) : null; + + if (compiler.isObserved()) { + compiler.fireCompilationStarted(new CompilationEvent(this)); + } + } + + public void close() { + currentCompilation.set(parent); + } + + public IR hir() { + return hir; + } + + /** + * Records that this compilation has exception handlers. + */ + public void setHasExceptionHandlers() { + hasExceptionHandlers = true; + } + + /** + * Records that this compilation encountered an instruction (e.g. {@link Bytecodes#UNSAFE_CAST}) + * that breaks the type safety invariant of the input bytecode. + */ + public void setNotTypesafe() { + typesafe = false; + } + + /** + * Checks whether this compilation is for an on-stack replacement. + * + * @return {@code true} if this compilation is for an on-stack replacement + */ + public boolean isOsrCompilation() { + return osrBCI >= 0; + } + + /** + * Translates a given kind to a canonical architecture kind. + * This is an identity function for all but {@link CiKind#Word} + * which is translated to {@link CiKind#Int} or {@link CiKind#Long} + * depending on whether or not this is a {@linkplain #is64Bit() 64-bit} + * compilation. + */ + public CiKind archKind(CiKind kind) { + if (kind.isWord()) { + return target.arch.is64bit() ? CiKind.Long : CiKind.Int; + } + return kind; + } + + /** + * Determines if two given kinds are equal at the {@linkplain #archKind(CiKind) architecture} level. + */ + public boolean archKindsEqual(CiKind kind1, CiKind kind2) { + return archKind(kind1) == archKind(kind2); + } + + /** + * Gets the frame which describes the layout of the OSR interpreter frame for this method. + * + * @return the OSR frame + */ + public RiOsrFrame getOsrFrame() { + return runtime.getOsrFrame(method, osrBCI); + } + + /** + * Records an assumption that the specified type has no finalizable subclasses. + * + * @param receiverType the type that is assumed to have no finalizable subclasses + * @return {@code true} if the assumption was recorded and can be assumed; {@code false} otherwise + */ + public boolean recordNoFinalizableSubclassAssumption(RiType receiverType) { + return false; + } + + /** + * Converts this compilation to a string. + * + * @return a string representation of this compilation + */ + @Override + public String toString() { + if (isOsrCompilation()) { + return "osr-compile @ " + osrBCI + ": " + method; + } + return "compile: " + method; + } + + /** + * Builds the block map for the specified method. + * + * @param method the method for which to build the block map + * @param osrBCI the OSR bytecode index; {@code -1} if this is not an OSR + * @return the block map for the specified method + */ + public BlockMap getBlockMap(RiMethod method, int osrBCI) { + // PERF: cache the block map for methods that are compiled or inlined often + BlockMap map = new BlockMap(method, hir.numberOfBlocks()); + boolean isOsrCompilation = false; + if (osrBCI >= 0) { + map.addEntrypoint(osrBCI, BlockBegin.BlockFlag.OsrEntry); + isOsrCompilation = true; + } + if (!map.build(!isOsrCompilation && C1XOptions.PhiLoopStores)) { + throw new CiBailout("build of BlockMap failed for " + method); + } else { + if (compiler.isObserved()) { + String label = CiUtil.format("BlockListBuilder %f %r %H.%n(%p)", method, true); + compiler.fireCompilationEvent(new CompilationEvent(this, label, map, method.code().length)); + } + } + map.cleanup(); + stats.bytecodeCount += map.numberOfBytes(); + stats.blockCount += map.numberOfBlocks(); + return map; + } + + /** + * Returns the frame map of this compilation. + * @return the frame map + */ + public FrameMap frameMap() { + return frameMap; + } + + public AbstractAssembler masm() { + if (assembler == null) { + assembler = compiler.backend.newAssembler(registerConfig); + assembler.setFrameSize(frameMap.frameSize()); + assembler.targetMethod.setCustomStackAreaOffset(frameMap.offsetToCustomArea()); + } + return assembler; + } + + public boolean hasExceptionHandlers() { + return hasExceptionHandlers; + } + + /** + * Determines if this compilation has encountered any instructions (e.g. {@link Bytecodes#UNSAFE_CAST}) + * that break the type safety invariant of the input bytecode. + */ + public boolean isTypesafe() { + return typesafe; + } + + public CiResult compile() { + CiTargetMethod targetMethod; + try { + emitHIR(); + emitLIR(); + targetMethod = emitCode(); + + if (C1XOptions.PrintMetrics) { + C1XMetrics.BytecodesCompiled += method.code().length; + } + } catch (CiBailout b) { + return new CiResult(null, b, stats); + } catch (Throwable t) { + return new CiResult(null, new CiBailout("Exception while compiling: " + method, t), stats); + } finally { + if (compiler.isObserved()) { + compiler.fireCompilationFinished(new CompilationEvent(this)); + } + } + + return new CiResult(targetMethod, null, stats); + } + + public IR emitHIR() { + hir = new IR(this); + hir.build(); + return hir; + } + + public void initFrameMap(int numberOfLocks) { + frameMap = this.compiler.backend.newFrameMap(method, numberOfLocks); + } + + private void emitLIR() { + if (C1XOptions.GenLIR) { + if (C1XOptions.PrintTimers) { + C1XTimers.LIR_CREATE.start(); + } + + initFrameMap(hir.topScope.maxLocks()); + + lirGenerator = compiler.backend.newLIRGenerator(this); + for (BlockBegin begin : hir.linearScanOrder()) { + lirGenerator.doBlock(begin); + } + + if (C1XOptions.PrintTimers) { + C1XTimers.LIR_CREATE.stop(); + } + + new LinearScan(this, hir, lirGenerator, frameMap()).allocate(); + } + } + + private CiTargetMethod emitCode() { + if (C1XOptions.GenLIR && C1XOptions.GenCode) { + final LIRAssembler lirAssembler = compiler.backend.newLIRAssembler(this); + lirAssembler.emitCode(hir.linearScanOrder()); + + // generate code for slow cases + lirAssembler.emitLocalStubs(); + + // generate exception adapters + lirAssembler.emitExceptionEntries(); + + // generate deoptimization stubs + ArrayList<DeoptimizationStub> deoptimizationStubs = lirGenerator.deoptimizationStubs(); + if (deoptimizationStubs != null) { + for (DeoptimizationStub stub : deoptimizationStubs) { + lirAssembler.emitDeoptizationStub(stub); + } + } + + // generate traps at the end of the method + lirAssembler.emitTraps(); + + CiTargetMethod targetMethod = masm().finishTargetMethod(method, runtime, lirAssembler.registerRestoreEpilogueOffset, false); + if (assumptions.count() > 0) { + targetMethod.setAssumptions(assumptions); + } + + if (compiler.isObserved()) { + compiler.fireCompilationEvent(new CompilationEvent(this, "After code generation", hir.startBlock, false, true, targetMethod)); + } + + if (C1XOptions.PrintTimers) { + C1XTimers.CODE_CREATE.stop(); + } + return targetMethod; + } + + return null; + } + + public int nextID() { + return nextID++; + } + + public static C1XCompilation compilation() { + C1XCompilation compilation = currentCompilation.get(); + assert compilation != null; + return compilation; + } + + public static C1XCompilation compilationOrNull() { + return currentCompilation.get(); + } +}