Java Code Examples for org.objectweb.asm.Opcodes#IFEQ
The following examples show how to use
org.objectweb.asm.Opcodes#IFEQ .
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Example 1
Source File: LayerCustomHeadVisitor.java From GregTech with GNU Lesser General Public License v3.0 | 6 votes |
@Override public void visitMethodInsn(int opcode, String owner, String name, String desc, boolean itf) { if (checkTargetInsn(opcode, owner, name, desc)) { markPatchedSuccessfully(); Label endLabel = new Label(); Label skipLabel = new Label(); super.visitVarInsn(Opcodes.ALOAD, 1); //load entity super.visitMethodInsn(Opcodes.INVOKESTATIC, ARMOR_HOOKS_OWNER, ARMOR_HOOKS_METHOD_NAME, ARMOR_HOOKS_SIGNATURE, false); super.visitJumpInsn(Opcodes.IFEQ, skipLabel); for (int i = 0; i < 4; i++) super.visitInsn(Opcodes.POP); //pop this, entity, stack, transformType super.visitJumpInsn(Opcodes.GOTO, endLabel); super.visitLabel(skipLabel); super.visitMethodInsn(opcode, owner, name, desc, itf); super.visitLabel(endLabel); return; } super.visitMethodInsn(opcode, owner, name, desc, itf); }
Example 2
Source File: NodeUtils.java From obfuscator with MIT License | 6 votes |
public static int getInvertedJump(int opcode) { int i = -1; switch (opcode) { case Opcodes.IFEQ: i = Opcodes.IFNE; break; case Opcodes.IFNE: i = Opcodes.IFEQ; break; case Opcodes.IF_ACMPEQ: i = Opcodes.IF_ACMPNE; break; case Opcodes.IF_ACMPNE: i = Opcodes.IF_ACMPEQ; break; } return i; }
Example 3
Source File: ConditionalJumpStmt.java From maple-ir with GNU General Public License v3.0 | 6 votes |
public static ComparisonType getType(int opcode) { switch (opcode) { case Opcodes.IF_ACMPEQ: case Opcodes.IF_ICMPEQ: case Opcodes.IFEQ: return EQ; case Opcodes.IF_ACMPNE: case Opcodes.IF_ICMPNE: case Opcodes.IFNE: return NE; case Opcodes.IF_ICMPGT: case Opcodes.IFGT: return GT; case Opcodes.IF_ICMPGE: case Opcodes.IFGE: return GE; case Opcodes.IF_ICMPLT: case Opcodes.IFLT: return LT; case Opcodes.IF_ICMPLE: case Opcodes.IFLE: return LE; default: throw new IllegalArgumentException(Printer.OPCODES[opcode]); } }
Example 4
Source File: StackHelper.java From zelixkiller with GNU General Public License v3.0 | 6 votes |
public InsnValue compareConstant(AbstractInsnNode insn, InsnValue value) { if (value.getValue() == null) { return InsnValue.INT_VALUE; } int i = ((Number)value.getValue()).intValue(); switch (insn.getOpcode()) { case Opcodes.IFEQ: return InsnValue.intValue(i == 0); case Opcodes.IFNE: return InsnValue.intValue(i != 0); case Opcodes.IFLE: return InsnValue.intValue(i <= 0); case Opcodes.IFLT: return InsnValue.intValue(i < 0); case Opcodes.IFGE: return InsnValue.intValue(i >= 0); case Opcodes.IFGT: return InsnValue.intValue(i > 0); } return null; }
Example 5
Source File: NetworkManagerVisitor.java From ForgeWurst with GNU General Public License v3.0 | 6 votes |
@Override public void visitJumpInsn(int opcode, Label label) { super.visitJumpInsn(opcode, label); if(done || opcode != Opcodes.IFEQ) return; System.out.println( "NetworkManagerVisitor.ChannelRead0Visitor.visitJumpInsn()"); mv.visitVarInsn(Opcodes.ALOAD, 2); mv.visitMethodInsn(Opcodes.INVOKESTATIC, "net/wurstclient/forge/compatibility/WEventFactory", "onReceivePacket", "(Lnet/minecraft/network/Packet;)Z", false); Label l1 = new Label(); mv.visitJumpInsn(Opcodes.IFNE, l1); mv.visitInsn(Opcodes.RETURN); mv.visitLabel(l1); mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null); done = true; }
Example 6
Source File: RuntimeInstrument.java From dacapobench with Apache License 2.0 | 6 votes |
@SuppressWarnings("unused") protected void onMethodEnter() { if (done) return; overridden = true; Label start = new Label(); Label normal = new Label(); super.visitLabel(start); super.visitFieldInsn(Opcodes.GETSTATIC, CONFIGURATION, CONFIGURATION_FIELD_NAME, Type.INT_TYPE.getDescriptor()); super.visitInsn(Opcodes.DUP); super.visitJumpInsn(Opcodes.IFEQ, normal); super.visitInsn(Opcodes.IRETURN); super.visitLabel(normal); super.visitInsn(Opcodes.POP); Label end = new Label(); super.visitJumpInsn(Opcodes.GOTO, end); super.visitLabel(end); super.visitTryCatchBlock(start, normal, end, Type.getType(Throwable.class).getDescriptor()); }
Example 7
Source File: RemoveConditionalMutator.java From pitest with Apache License 2.0 | 6 votes |
private boolean canMutate(final int opcode) { switch (opcode) { case Opcodes.IFLE: case Opcodes.IFGE: case Opcodes.IFGT: case Opcodes.IFLT: case Opcodes.IF_ICMPGE: case Opcodes.IF_ICMPGT: case Opcodes.IF_ICMPLE: case Opcodes.IF_ICMPLT: return (RemoveConditionalMutator.this.kind == Choice.ORDER); case Opcodes.IFEQ: case Opcodes.IFNE: case Opcodes.IFNONNULL: case Opcodes.IFNULL: case Opcodes.IF_ICMPNE: case Opcodes.IF_ICMPEQ: case Opcodes.IF_ACMPEQ: case Opcodes.IF_ACMPNE: return (RemoveConditionalMutator.this.kind == Choice.EQUAL); default: return false; } }
Example 8
Source File: ReturnValuesMutator.java From pitest with Apache License 2.0 | 6 votes |
/** * Mutates a primitive float return (<code>Opcode.FRETURN</code>). The * strategy used was translated from jumble BCEL code. The following is * complicated by the problem of <tt>NaN</tt>s. By default the new value is * <code>-(x + 1)</code>, but this doesn't work for <tt>NaN</tt>s. But for a * <tt>NaN</tt> <code>x != x</code> is true, and we use this to detect them. * * @see #mutatePrimitiveDoubleReturn() */ private void mutatePrimitiveFloatReturn() { if (shouldMutate("primitive float", "(x != NaN)? -(x + 1) : -1 ")) { final Label label = new Label(); super.visitInsn(Opcodes.DUP); super.visitInsn(Opcodes.DUP); super.visitInsn(Opcodes.FCMPG); super.visitJumpInsn(Opcodes.IFEQ, label); super.visitInsn(Opcodes.POP); super.visitInsn(Opcodes.FCONST_0); // the following code is executed in NaN case, too super.visitLabel(label); super.visitInsn(Opcodes.FCONST_1); super.visitInsn(Opcodes.FADD); super.visitInsn(Opcodes.FNEG); super.visitInsn(Opcodes.FRETURN); } }
Example 9
Source File: ReturnValuesMutator.java From pitest with Apache License 2.0 | 6 votes |
/** * Mutates a primitive double return (<code>Opcode.DRETURN</code>). The * strategy used was translated from jumble BCEL code. The following is * complicated by the problem of <tt>NaN</tt>s. By default the new value is * <code>-(x + 1)</code>, but this doesn't work for <tt>NaN</tt>s. But for a * <tt>NaN</tt> <code>x != x</code> is true, and we use this to detect them. * * @see #mutatePrimitiveFloatReturn() */ private void mutatePrimitiveDoubleReturn() { if (shouldMutate("primitive double", "(x != NaN)? -(x + 1) : -1 ")) { final Label label = new Label(); super.visitInsn(Opcodes.DUP2); super.visitInsn(Opcodes.DUP2); super.visitInsn(Opcodes.DCMPG); super.visitJumpInsn(Opcodes.IFEQ, label); super.visitInsn(Opcodes.POP2); super.visitInsn(Opcodes.DCONST_0); // the following code is executed in NaN case, too super.visitLabel(label); super.visitInsn(Opcodes.DCONST_1); super.visitInsn(Opcodes.DADD); super.visitInsn(Opcodes.DNEG); super.visitInsn(Opcodes.DRETURN); } }
Example 10
Source File: BuildStackInfoAdapter.java From copper-engine with Apache License 2.0 | 5 votes |
@Override public void visitJumpInsn(int arg0, Label arg1) { savePreviousFrame(); switch (arg0) { case Opcodes.IF_ACMPEQ: case Opcodes.IF_ACMPNE: case Opcodes.IF_ICMPEQ: case Opcodes.IF_ICMPGE: case Opcodes.IF_ICMPGT: case Opcodes.IF_ICMPLE: case Opcodes.IF_ICMPLT: case Opcodes.IF_ICMPNE: currentFrame.popStack(); case Opcodes.IFEQ: case Opcodes.IFGE: case Opcodes.IFGT: case Opcodes.IFLE: case Opcodes.IFLT: case Opcodes.IFNE: case Opcodes.IFNONNULL: case Opcodes.IFNULL: currentFrame.popStack(); case Opcodes.GOTO: forwardFrames.put(arg1, new StackInfo(currentFrame)); break; case Opcodes.JSR: currentFrame.pushStack(retAddressType); forwardFrames.put(arg1, new StackInfo(currentFrame)); break; default: logger.debug("Unhandled: "); } if (logger.isDebugEnabled()) logger.debug("jumpInsn " + getOpCode(arg0) + " " + arg1); delegate.visitJumpInsn(arg0, arg1); }
Example 11
Source File: BytecodeTypeInference.java From bazel with Apache License 2.0 | 5 votes |
@Override public void visitJumpInsn(int opcode, Label label) { switch (opcode) { case Opcodes.IFEQ: case Opcodes.IFNE: case Opcodes.IFLT: case Opcodes.IFGE: case Opcodes.IFGT: case Opcodes.IFLE: pop(); break; case Opcodes.IF_ICMPEQ: case Opcodes.IF_ICMPNE: case Opcodes.IF_ICMPLT: case Opcodes.IF_ICMPGE: case Opcodes.IF_ICMPGT: case Opcodes.IF_ICMPLE: case Opcodes.IF_ACMPEQ: case Opcodes.IF_ACMPNE: pop(2); break; case Opcodes.GOTO: break; case Opcodes.JSR: throw new RuntimeException("The JSR instruction is not supported."); case Opcodes.IFNULL: case Opcodes.IFNONNULL: pop(1); break; default: throw new RuntimeException("Unhandled opcode " + opcode); } super.visitJumpInsn(opcode, label); }
Example 12
Source File: InstructionAdapter.java From JReFrameworker with MIT License | 4 votes |
@Override public void visitJumpInsn(final int opcode, final Label label) { switch (opcode) { case Opcodes.IFEQ: ifeq(label); break; case Opcodes.IFNE: ifne(label); break; case Opcodes.IFLT: iflt(label); break; case Opcodes.IFGE: ifge(label); break; case Opcodes.IFGT: ifgt(label); break; case Opcodes.IFLE: ifle(label); break; case Opcodes.IF_ICMPEQ: ificmpeq(label); break; case Opcodes.IF_ICMPNE: ificmpne(label); break; case Opcodes.IF_ICMPLT: ificmplt(label); break; case Opcodes.IF_ICMPGE: ificmpge(label); break; case Opcodes.IF_ICMPGT: ificmpgt(label); break; case Opcodes.IF_ICMPLE: ificmple(label); break; case Opcodes.IF_ACMPEQ: ifacmpeq(label); break; case Opcodes.IF_ACMPNE: ifacmpne(label); break; case Opcodes.GOTO: goTo(label); break; case Opcodes.JSR: jsr(label); break; case Opcodes.IFNULL: ifnull(label); break; case Opcodes.IFNONNULL: ifnonnull(label); break; default: throw new IllegalArgumentException(); } }
Example 13
Source File: InstructionAdapter.java From JReFrameworker with MIT License | 4 votes |
@Override public void visitJumpInsn(final int opcode, final Label label) { switch (opcode) { case Opcodes.IFEQ: ifeq(label); break; case Opcodes.IFNE: ifne(label); break; case Opcodes.IFLT: iflt(label); break; case Opcodes.IFGE: ifge(label); break; case Opcodes.IFGT: ifgt(label); break; case Opcodes.IFLE: ifle(label); break; case Opcodes.IF_ICMPEQ: ificmpeq(label); break; case Opcodes.IF_ICMPNE: ificmpne(label); break; case Opcodes.IF_ICMPLT: ificmplt(label); break; case Opcodes.IF_ICMPGE: ificmpge(label); break; case Opcodes.IF_ICMPGT: ificmpgt(label); break; case Opcodes.IF_ICMPLE: ificmple(label); break; case Opcodes.IF_ACMPEQ: ifacmpeq(label); break; case Opcodes.IF_ACMPNE: ifacmpne(label); break; case Opcodes.GOTO: goTo(label); break; case Opcodes.JSR: jsr(label); break; case Opcodes.IFNULL: ifnull(label); break; case Opcodes.IFNONNULL: ifnonnull(label); break; default: throw new IllegalArgumentException(); } }
Example 14
Source File: Jump.java From CodenameOne with GNU General Public License v2.0 | 4 votes |
@Override public void appendInstruction(StringBuilder b, List<Instruction> instructions) { b.append(" "); switch(opcode) { case Opcodes.IFEQ: b.append("if(POP_INT() == 0) /* IFEQ */ "); break; case Opcodes.IFNE: b.append("if(POP_INT() != 0) /* IFNE */ "); break; case Opcodes.IFLT: b.append("if(POP_INT() < 0) /* IFLT */ "); break; case Opcodes.IFGE: b.append("if(POP_INT() >= 0) /* IFGE */ "); break; case Opcodes.IFGT: b.append("if(POP_INT() > 0) /* IFGT */ "); break; case Opcodes.IFLE: b.append("if(POP_INT() <= 0) /* IFLE */ "); break; case Opcodes.IF_ICMPEQ: b.append("SP-=2; if((*SP).data.i == SP[1].data.i) /* IF_ICMPEQ */ "); break; case Opcodes.IF_ICMPNE: b.append("SP-=2; if((*SP).data.i != SP[1].data.i) /* IF_ICMPNE */ "); break; case Opcodes.IF_ICMPLT: b.append("SP-=2; if((*SP).data.i < SP[1].data.i) /* IF_ICMPLT */ "); break; case Opcodes.IF_ICMPGE: b.append("SP-=2; if((*SP).data.i >= SP[1].data.i) /* IF_ICMPGE */ "); break; case Opcodes.IF_ICMPGT: b.append("SP-=2; if((*SP).data.i > SP[1].data.i) /* IF_ICMPGT */ "); break; case Opcodes.IF_ICMPLE: b.append("SP-=2; if((*SP).data.i <= SP[1].data.i) /* IF_ICMPLE */ "); break; case Opcodes.IF_ACMPEQ: b.append("SP-=2; if((*SP).data.o == SP[1].data.o) /* IF_ACMPEQ */ "); break; case Opcodes.IF_ACMPNE: b.append("SP-=2; if((*SP).data.o != SP[1].data.o) /* IF_ACMPNE */ "); break; case Opcodes.GOTO: // this space intentionally left blank break; case Opcodes.JSR: b.append("/* JSR TODO */"); /*b.append("PUSH_") b.append("goto label_"); b.append(label.toString()); b.append(";\n"); b.append("JSR_RETURN_LABEL_"); b.append(jsrCounter); b.append(":"); jsrCounter++;*/ return; case Opcodes.IFNULL: b.append("if(POP_OBJ() == JAVA_NULL) /* IFNULL */ "); break; case Opcodes.IFNONNULL: b.append("if(POP_OBJ() != JAVA_NULL) /* IFNONNULL */ "); break; } if(TryCatch.isTryCatchInMethod()) { b.append("JUMP_TO(label_"); b.append(label.toString()); b.append(", "); b.append(LabelInstruction.getLabelCatchDepth(label, instructions)); b.append(");\n"); } else { b.append("goto label_"); b.append(label.toString()); b.append(";\n"); } }
Example 15
Source File: UselessArithmeticTransformer.java From deobfuscator with Apache License 2.0 | 4 votes |
private List<AbstractInsnNode> getPossibleInsns(AbstractInsnNode ain) { List<AbstractInsnNode> instrs = new ArrayList<>(); while(ain != null) { if(ain instanceof LineNumberNode || ain instanceof FrameNode) { ain = ain.getNext(); continue; } instrs.add(ain); if(instrs.size() >= 23) break; ain = ain.getNext(); } if(instrs.size() == 23 && instrs.get(0).getOpcode() == Opcodes.ILOAD && instrs.get(1).getOpcode() == Opcodes.ICONST_1 && instrs.get(2).getOpcode() == Opcodes.ISUB && instrs.get(3).getOpcode() == Opcodes.ISTORE) { int var1 = ((VarInsnNode)instrs.get(0)).var; int var2 = ((VarInsnNode)instrs.get(3)).var; if(instrs.get(4).getOpcode() == Opcodes.ILOAD && ((VarInsnNode)instrs.get(4)).var == var1 && instrs.get(5).getOpcode() == Opcodes.ILOAD && ((VarInsnNode)instrs.get(5)).var == var2 && instrs.get(6).getOpcode() == Opcodes.IMUL && instrs.get(7).getOpcode() == Opcodes.ISTORE && ((VarInsnNode)instrs.get(7)).var == var2 && instrs.get(8).getOpcode() == Opcodes.ILOAD && ((VarInsnNode)instrs.get(8)).var == var2 && instrs.get(9).getOpcode() == Opcodes.ICONST_2 && instrs.get(10).getOpcode() == Opcodes.IREM && instrs.get(11).getOpcode() == Opcodes.ISTORE && ((VarInsnNode)instrs.get(11)).var == var2 && instrs.get(12).getOpcode() == Opcodes.ILOAD && ((VarInsnNode)instrs.get(12)).var == var2 && instrs.get(13).getOpcode() == Opcodes.I2L && instrs.get(14).getOpcode() == Opcodes.ICONST_0 && instrs.get(15).getOpcode() == Opcodes.I2L && instrs.get(16).getOpcode() == Opcodes.LCMP && instrs.get(17).getOpcode() == Opcodes.ICONST_1 && instrs.get(18).getOpcode() == Opcodes.IXOR && instrs.get(19).getOpcode() == Opcodes.ICONST_1 && instrs.get(20).getOpcode() == Opcodes.IAND && instrs.get(21).getOpcode() == Opcodes.IFEQ && instrs.get(22).getOpcode() == Opcodes.IINC) return instrs; } return null; }
Example 16
Source File: JVMImpl.java From serianalyzer with GNU General Public License v3.0 | 4 votes |
/** * @param opcode * @param label * @param s * @return */ static boolean handleJVMJump ( int opcode, Label label, JVMStackState s ) { boolean tainted; switch ( opcode ) { case Opcodes.IF_ICMPEQ: case Opcodes.IF_ICMPNE: case Opcodes.IF_ICMPLT: case Opcodes.IF_ICMPGE: case Opcodes.IF_ICMPGT: case Opcodes.IF_ICMPLE: case Opcodes.IF_ACMPEQ: case Opcodes.IF_ACMPNE: BaseType o1 = s.pop(); BaseType o2 = s.pop(); tainted = ! ( o1 != null ) || ! ( o2 != null ) || o1.isTainted() || o2.isTainted(); break; case Opcodes.IFEQ: case Opcodes.IFNE: case Opcodes.IFLT: case Opcodes.IFGE: case Opcodes.IFGT: case Opcodes.IFLE: case Opcodes.IFNULL: case Opcodes.IFNONNULL: BaseType c = s.pop(); tainted = ( c == null || c.isTainted() ); break; case Opcodes.JSR: s.push(new BasicConstant(Type.INT_TYPE, label)); tainted = false; break; case Opcodes.GOTO: tainted = false; break; default: log.warn("Unsupported opcode " + opcode); //$NON-NLS-1$ tainted = true; } return tainted; }
Example 17
Source File: InstructionAdapter.java From JByteMod-Beta with GNU General Public License v2.0 | 4 votes |
@Override public void visitJumpInsn(final int opcode, final Label label) { switch (opcode) { case Opcodes.IFEQ: ifeq(label); break; case Opcodes.IFNE: ifne(label); break; case Opcodes.IFLT: iflt(label); break; case Opcodes.IFGE: ifge(label); break; case Opcodes.IFGT: ifgt(label); break; case Opcodes.IFLE: ifle(label); break; case Opcodes.IF_ICMPEQ: ificmpeq(label); break; case Opcodes.IF_ICMPNE: ificmpne(label); break; case Opcodes.IF_ICMPLT: ificmplt(label); break; case Opcodes.IF_ICMPGE: ificmpge(label); break; case Opcodes.IF_ICMPGT: ificmpgt(label); break; case Opcodes.IF_ICMPLE: ificmple(label); break; case Opcodes.IF_ACMPEQ: ifacmpeq(label); break; case Opcodes.IF_ACMPNE: ifacmpne(label); break; case Opcodes.GOTO: goTo(label); break; case Opcodes.JSR: jsr(label); break; case Opcodes.IFNULL: ifnull(label); break; case Opcodes.IFNONNULL: ifnonnull(label); break; default: throw new IllegalArgumentException(); } }
Example 18
Source File: NodeUtils.java From obfuscator with MIT License | 4 votes |
public static boolean isConditionalGoto(AbstractInsnNode abstractInsnNode) { return abstractInsnNode.getOpcode() >= Opcodes.IFEQ && abstractInsnNode.getOpcode() <= Opcodes.IF_ACMPNE; }
Example 19
Source File: InstructionAdapter.java From Concurnas with MIT License | 4 votes |
@Override public void visitJumpInsn(final int opcode, final Label label) { switch (opcode) { case Opcodes.IFEQ: ifeq(label); break; case Opcodes.IFNE: ifne(label); break; case Opcodes.IFLT: iflt(label); break; case Opcodes.IFGE: ifge(label); break; case Opcodes.IFGT: ifgt(label); break; case Opcodes.IFLE: ifle(label); break; case Opcodes.IF_ICMPEQ: ificmpeq(label); break; case Opcodes.IF_ICMPNE: ificmpne(label); break; case Opcodes.IF_ICMPLT: ificmplt(label); break; case Opcodes.IF_ICMPGE: ificmpge(label); break; case Opcodes.IF_ICMPGT: ificmpgt(label); break; case Opcodes.IF_ICMPLE: ificmple(label); break; case Opcodes.IF_ACMPEQ: ifacmpeq(label); break; case Opcodes.IF_ACMPNE: ifacmpne(label); break; case Opcodes.GOTO: goTo(label); break; case Opcodes.JSR: jsr(label); break; case Opcodes.IFNULL: ifnull(label); break; case Opcodes.IFNONNULL: ifnonnull(label); break; default: throw new IllegalArgumentException(); } }
Example 20
Source File: EqualsMethod.java From byte-buddy with Apache License 2.0 | 2 votes |
/** * Returns a conditional return that returns on an {@code int} value of not {@code 0}. * * @return A conditional return that returns on an {@code int} value of not {@code 0}. */ protected static ConditionalReturn onNonZeroInteger() { return new ConditionalReturn(Opcodes.IFEQ); }