Mercurial > hg > truffle
diff graal/Compiler/src/com/sun/c1x/debug/BlockPrinter.java @ 2507:9ec15d6914ca
Pull over of compiler from maxine repository.
author | Thomas Wuerthinger <thomas@wuerthinger.net> |
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date | Wed, 27 Apr 2011 11:43:22 +0200 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/graal/Compiler/src/com/sun/c1x/debug/BlockPrinter.java Wed Apr 27 11:43:22 2011 +0200 @@ -0,0 +1,126 @@ +/* + * Copyright (c) 2009, 2010, 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.debug; + +import com.sun.c1x.graph.*; +import com.sun.c1x.ir.*; +import com.sun.c1x.util.*; +import com.sun.c1x.value.*; + +/** + * Prints a listing for a {@linkplain BlockBegin block}. + * + * @author Doug Simon + */ +public class BlockPrinter implements BlockClosure { + + private final InstructionPrinter ip; + private final boolean cfgOnly; + private final boolean liveOnly; + + public BlockPrinter(IR ir, InstructionPrinter ip, boolean cfgOnly, boolean liveOnly) { + this.ip = ip; + this.cfgOnly = cfgOnly; + this.liveOnly = liveOnly; + } + + public void apply(BlockBegin block) { + if (cfgOnly) { + ip.printInstruction(block); + ip.out().println(); + } else { + printBlock(block, liveOnly); + } + } + + public void printBlock(BlockBegin block, boolean liveOnly) { + ip.printInstruction(block); + LogStream out = ip.out(); + out.println(); + printFrameState(block.stateBefore(), out); + out.println(); + + out.println("inlining depth " + block.stateBefore().scope().level); + + ip.printInstructionListingHeader(); + + for (Instruction i = block.next(); i != null; i = i.next()) { + if (!liveOnly || i.isLive()) { + ip.printInstructionListing(i); + } + } + out.println(); + + } + + private static void printFrameState(FrameState newFrameState, LogStream out) { + int startPosition = out.position(); + if (newFrameState.stackEmpty()) { + out.print("empty stack"); + } else { + out.print("stack ["); + int i = 0; + while (i < newFrameState.stackSize()) { + if (i > 0) { + out.print(", "); + } + Value value = newFrameState.stackAt(i); + out.print(i + ":" + Util.valueString(value)); + if (value == null) { + i++; + } else { + i += value.kind.sizeInSlots(); + if (value instanceof Phi) { + Phi phi = (Phi) value; + if (phi.operand() != null) { + out.print(" "); + out.print(phi.operand().toString()); + } + } + } + } + out.print(']'); + } + if (newFrameState.locksSize() != 0) { + // print out the lines on the line below this + // one at the same indentation level. + out.println(); + out.fillTo(startPosition, ' '); + out.print("locks ["); + for (int i = 0; i < newFrameState.locksSize(); i++) { + Value value = newFrameState.lockAt(i); + if (i > 0) { + out.print(", "); + } + out.print(i + ":"); + if (value == null) { + // synchronized methods push null on the lock stack + out.print("this"); + } else { + out.print(Util.valueString(value)); + } + } + out.print("]"); + } + } +}