| Index: src/ia32/lithium-ia32.cc
|
| diff --git a/src/ia32/lithium-ia32.cc b/src/ia32/lithium-ia32.cc
|
| index 8f7a28fbed915c22a7c4f76b0879b76b623a652d..8435a3c2a1320b1e90ee0fe726f34cdad9a54f0f 100644
|
| --- a/src/ia32/lithium-ia32.cc
|
| +++ b/src/ia32/lithium-ia32.cc
|
| @@ -1682,7 +1682,11 @@ LInstruction* LChunkBuilder::DoChange(HChange* instr) {
|
| if (from.IsTagged()) {
|
| if (to.IsDouble()) {
|
| LOperand* value = UseRegister(instr->value());
|
| - LNumberUntagD* res = new(zone()) LNumberUntagD(value);
|
| + // Temp register only necessary for minus zero check.
|
| + LOperand* temp = instr->deoptimize_on_minus_zero()
|
| + ? TempRegister()
|
| + : NULL;
|
| + LNumberUntagD* res = new(zone()) LNumberUntagD(value, temp);
|
| return AssignEnvironment(DefineAsRegister(res));
|
| } else {
|
| ASSERT(to.IsInteger32());
|
|
|