commit 1b5685f93f7b30d4466ff71199ddb9b5fb06bb18
author Logan Chien <loganchien@google.com> Tue Dec 27 18:01:14 2011 +0800
committer Shih-wei Liao <sliao@google.com> Thu Feb 16 13:05:44 2012 -0800
tree b443b842369ab5d94db3b7dc248cb5569059434c
parent a78e3c828f9a701892482909b4d06af74a4fdbd7

Implement integer negation.

Change-Id: I435fb7791ed7f57db7a27fba1fc4b66abf14cb6f

src/compiler_llvm/method_compiler.cc

diff --git a/src/compiler_llvm/method_compiler.cc b/src/compiler_llvm/method_compiler.cc
index dd8fc85..c2e03cb 100644
--- a/src/compiler_llvm/method_compiler.cc
+++ b/src/compiler_llvm/method_compiler.cc
@@ -1659,7 +1659,15 @@
 void MethodCompiler::EmitInsn_Neg(uint32_t dex_pc,
                                   Instruction const* insn,
                                   JType op_jty) {
-  // UNIMPLEMENTED(WARNING);
+
+  Instruction::DecodedInstruction dec_insn(insn);
+
+  DCHECK(op_jty == kInt || op_jty == kLong) << op_jty;
+
+  llvm::Value* src_value = EmitLoadDalvikReg(dec_insn.vB_, op_jty, kAccurate);
+  llvm::Value* result_value = irb_.CreateNeg(src_value);
+  EmitStoreDalvikReg(dec_insn.vA_, op_jty, kAccurate, result_value);
+
   irb_.CreateBr(GetNextBasicBlock(dex_pc));
 }