1 /* 2 * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 package org.graalvm.compiler.lir.alloc; 24 25 import static org.graalvm.compiler.lir.LIRValueUtil.isVariable; 26 import static org.graalvm.compiler.lir.LIRValueUtil.isVirtualStackSlot; 27 28 import java.util.EnumSet; 29 import org.graalvm.compiler.core.common.cfg.AbstractBlockBase; 30 import org.graalvm.compiler.lir.LIR; 31 import org.graalvm.compiler.lir.LIRInstruction; 32 import org.graalvm.compiler.lir.LIRInstruction.OperandFlag; 33 import org.graalvm.compiler.lir.LIRInstruction.OperandMode; 34 import org.graalvm.compiler.lir.gen.LIRGenerationResult; 35 import org.graalvm.compiler.lir.phases.AllocationPhase; 36 37 import jdk.vm.ci.code.TargetDescription; 38 import jdk.vm.ci.meta.Value; 39 40 /** 41 * Verifies that all virtual operands have been replaced by concrete values. 42 */ 43 public class AllocationStageVerifier extends AllocationPhase { 44 45 @Override 46 protected void run(TargetDescription target, LIRGenerationResult lirGenRes, AllocationContext context) { 47 verifyLIR(lirGenRes.getLIR()); 48 49 } 50 51 protected void verifyLIR(LIR lir) { 52 for (AbstractBlockBase<?> block : lir.getControlFlowGraph().getBlocks()) { 53 verifyBlock(lir, block); 54 } 55 } 56 57 protected void verifyBlock(LIR lir, AbstractBlockBase<?> block) { 58 for (LIRInstruction inst : lir.getLIRforBlock(block)) { 59 verifyInstruction(inst); 60 } 61 } 62 63 protected void verifyInstruction(LIRInstruction inst) { 64 inst.visitEachInput(this::verifyOperands); 65 inst.visitEachOutput(this::verifyOperands); 66 inst.visitEachAlive(this::verifyOperands); 67 inst.visitEachTemp(this::verifyOperands); 68 } 69 70 /** 71 * @param instruction 72 * @param value 73 * @param mode 74 * @param flags 75 */ 76 protected void verifyOperands(LIRInstruction instruction, Value value, OperandMode mode, EnumSet<OperandFlag> flags) { 77 assert !isVirtualStackSlot(value) && !isVariable(value) : "Virtual values not allowed after allocation stage: " + value; 78 } 79 80 }