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package org.apache.commons.nabla.automatic.functions; |
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import org.apache.commons.nabla.automatic.analysis.MethodDifferentiator; |
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import org.objectweb.asm.Opcodes; |
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import org.objectweb.asm.tree.InsnList; |
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import org.objectweb.asm.tree.InsnNode; |
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import org.objectweb.asm.tree.MethodInsnNode; |
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28 | 1 | public class AcosTransformer implements MathInvocationTransformer { |
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public InsnList getReplacementList(final String owner, final MethodDifferentiator methodDifferentiator) { |
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35 | 3 | final InsnList list = new InsnList(); |
36 | 3 | list.add(new InsnNode(Opcodes.DUP2_X2)); |
37 | 3 | list.add(new InsnNode(Opcodes.POP2)); |
38 | 3 | list.add(new InsnNode(Opcodes.DUP2_X2)); |
39 | 3 | list.add(new InsnNode(Opcodes.DUP2)); |
40 | 3 | list.add(new InsnNode(Opcodes.DMUL)); |
41 | 3 | list.add(new InsnNode(Opcodes.DCONST_1)); |
42 | 3 | list.add(new InsnNode(Opcodes.DSUB)); |
43 | 3 | list.add(new InsnNode(Opcodes.DNEG)); |
44 | 3 | list.add(new MethodInsnNode(Opcodes.INVOKESTATIC, owner, "sqrt", D_RETURN_D_DESCRIPTOR)); |
45 | 3 | list.add(new InsnNode(Opcodes.DDIV)); |
46 | 3 | list.add(new InsnNode(Opcodes.DNEG)); |
47 | 3 | list.add(new InsnNode(Opcodes.DUP2_X2)); |
48 | 3 | list.add(new InsnNode(Opcodes.POP2)); |
49 | 3 | list.add(new MethodInsnNode(Opcodes.INVOKESTATIC, owner, "acos", D_RETURN_D_DESCRIPTOR)); |
50 | 3 | list.add(new InsnNode(Opcodes.DUP2_X2)); |
51 | 3 | list.add(new InsnNode(Opcodes.POP2)); |
52 | 3 | return list; |
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} |
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} |