[v8-dev] Implementing Math.floor and Math.sqrt for crankshaft.

src/arm/lithium-arm.cc

Index: src/arm/lithium-arm.cc
===================================================================
--- src/arm/lithium-arm.cc	(revision 6297)
+++ src/arm/lithium-arm.cc	(working copy)
@@ -1120,7 +1120,8 @@
 LInstruction* LChunkBuilder::DoUnaryMathOperation(HUnaryMathOperation* instr) {
   BuiltinFunctionId op = instr->op();
   LOperand* input = UseRegisterAtStart(instr->value());
-  LInstruction* result = new LUnaryMathOperation(input);
+  LOperand* temp = (op == kMathFloor) ? TempRegister() : NULL;
+  LInstruction* result = new LUnaryMathOperation(input, temp);
   switch (op) {
     case kMathAbs:
       return AssignEnvironment(AssignPointerMap(DefineSameAsFirst(result)));