| // Copyright (c) 2018, the R8 project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| package com.android.tools.r8.debug; |
| |
| import org.objectweb.asm.ClassWriter; |
| import org.objectweb.asm.Label; |
| import org.objectweb.asm.MethodVisitor; |
| import org.objectweb.asm.Opcodes; |
| |
| public class EmptyLineAfterJoinTestDump implements Opcodes { |
| |
| public static byte[] dump() { |
| |
| ClassWriter cw = new ClassWriter(0); |
| MethodVisitor mv; |
| |
| cw.visit( |
| V1_8, |
| ACC_PUBLIC + ACC_SUPER, |
| "com/android/tools/r8/debug/EmptyLineAfterJoinTest", |
| null, |
| "java/lang/Object", |
| null); |
| |
| cw.visitSource("EmptyLineAfterJoinTest.java", null); |
| |
| { |
| mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null); |
| mv.visitCode(); |
| Label l0 = new Label(); |
| mv.visitLabel(l0); |
| mv.visitLineNumber(6, l0); |
| mv.visitVarInsn(ALOAD, 0); |
| mv.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V", false); |
| mv.visitInsn(RETURN); |
| Label l1 = new Label(); |
| mv.visitLabel(l1); |
| mv.visitLocalVariable( |
| "this", "Lcom/android/tools/r8/debug/EmptyLineAfterJoinTest;", null, l0, l1, 0); |
| mv.visitMaxs(1, 1); |
| mv.visitEnd(); |
| } |
| { |
| mv = cw.visitMethod(ACC_PUBLIC, "foo", "()V", null, null); |
| mv.visitCode(); |
| Label l0 = new Label(); |
| Label l1 = new Label(); |
| Label l2 = new Label(); |
| mv.visitTryCatchBlock(l0, l1, l2, "java/lang/Throwable"); |
| Label l3 = new Label(); |
| mv.visitLabel(l3); |
| mv.visitLineNumber(10, l3); |
| mv.visitIntInsn(BIPUSH, 42); |
| mv.visitVarInsn(ISTORE, 1); |
| mv.visitLabel(l0); |
| mv.visitLineNumber(12, l0); |
| mv.visitVarInsn(ALOAD, 0); |
| mv.visitMethodInsn( |
| INVOKESPECIAL, "com/android/tools/r8/debug/EmptyLineAfterJoinTest", "bar", "()V", false); |
| Label l4 = new Label(); |
| mv.visitLabel(l4); |
| mv.visitLineNumber(13, l4); |
| mv.visitIntInsn(BIPUSH, 7); |
| mv.visitVarInsn(ISTORE, 1); |
| mv.visitLabel(l1); |
| mv.visitLineNumber(14, l1); |
| Label l5 = new Label(); |
| mv.visitJumpInsn(GOTO, l5); |
| // Force the line to be 16 prior to exiting the exception block. |
| mv.visitLabel(l2); |
| mv.visitLineNumber(16, l2); |
| mv.visitFrame( |
| Opcodes.F_FULL, |
| 2, |
| new Object[] {"com/android/tools/r8/debug/EmptyLineAfterJoinTest", Opcodes.INTEGER}, |
| 1, |
| new Object[] {"java/lang/Throwable"}); |
| mv.visitVarInsn(ASTORE, 2); |
| mv.visitLabel(l5); |
| mv.visitLineNumber(16, l5); |
| // Let the local persist such that slot 1 for x becomes y. |
| mv.visitFrame( |
| Opcodes.F_FULL, |
| 2, |
| new Object[] {"com/android/tools/r8/debug/EmptyLineAfterJoinTest", Opcodes.INTEGER}, |
| 0, |
| new Object[] {}); |
| // Was: mv.visitIntInsn(BIPUSH, 11); |
| // mv.visitVarInsn(ISTORE, 1); |
| // Replaced by NOP which causes an empty block at the join. |
| mv.visitInsn(NOP); |
| Label l6 = new Label(); |
| mv.visitLabel(l6); |
| mv.visitLineNumber(17, l6); |
| mv.visitFieldInsn(GETSTATIC, "java/lang/System", "out", "Ljava/io/PrintStream;"); |
| mv.visitVarInsn(ILOAD, 1); |
| mv.visitMethodInsn(INVOKEVIRTUAL, "java/io/PrintStream", "println", "(I)V", false); |
| Label l7 = new Label(); |
| mv.visitLabel(l7); |
| mv.visitLineNumber(18, l7); |
| mv.visitInsn(RETURN); |
| Label l8 = new Label(); |
| mv.visitLabel(l8); |
| mv.visitLocalVariable("x", "I", null, l0, l5, 1); |
| mv.visitLocalVariable( |
| "this", "Lcom/android/tools/r8/debug/EmptyLineAfterJoinTest;", null, l3, l8, 0); |
| mv.visitLocalVariable("y", "I", null, l6, l8, 1); |
| mv.visitMaxs(2, 3); |
| mv.visitEnd(); |
| } |
| { |
| mv = cw.visitMethod(ACC_PRIVATE, "bar", "()V", null, null); |
| mv.visitCode(); |
| Label l0 = new Label(); |
| mv.visitLabel(l0); |
| mv.visitLineNumber(22, l0); |
| mv.visitInsn(RETURN); |
| Label l1 = new Label(); |
| mv.visitLabel(l1); |
| mv.visitLocalVariable( |
| "this", "Lcom/android/tools/r8/debug/EmptyLineAfterJoinTest;", null, l0, l1, 0); |
| mv.visitMaxs(0, 1); |
| mv.visitEnd(); |
| } |
| { |
| mv = cw.visitMethod(ACC_PUBLIC + ACC_STATIC, "main", "([Ljava/lang/String;)V", null, null); |
| mv.visitCode(); |
| Label l0 = new Label(); |
| mv.visitLabel(l0); |
| mv.visitLineNumber(25, l0); |
| mv.visitTypeInsn(NEW, "com/android/tools/r8/debug/EmptyLineAfterJoinTest"); |
| mv.visitInsn(DUP); |
| mv.visitMethodInsn( |
| INVOKESPECIAL, |
| "com/android/tools/r8/debug/EmptyLineAfterJoinTest", |
| "<init>", |
| "()V", |
| false); |
| mv.visitMethodInsn( |
| INVOKEVIRTUAL, "com/android/tools/r8/debug/EmptyLineAfterJoinTest", "foo", "()V", false); |
| Label l1 = new Label(); |
| mv.visitLabel(l1); |
| mv.visitLineNumber(26, l1); |
| mv.visitInsn(RETURN); |
| Label l2 = new Label(); |
| mv.visitLabel(l2); |
| mv.visitLocalVariable("args", "[Ljava/lang/String;", null, l0, l2, 0); |
| mv.visitMaxs(2, 1); |
| mv.visitEnd(); |
| } |
| cw.visitEnd(); |
| |
| return cw.toByteArray(); |
| } |
| } |