Improve code generation for the HRandom instruction.

src/ia32/lithium-ia32.cc

Index: src/ia32/lithium-ia32.cc
diff --git a/src/ia32/lithium-ia32.cc b/src/ia32/lithium-ia32.cc
index e2eee19c841bf223e2b1f45898cfcbd6e2a2ddce..4c83f8502cd6a762081e7f2d26bf827db31054c7 100644
--- a/src/ia32/lithium-ia32.cc
+++ b/src/ia32/lithium-ia32.cc
@@ -1715,10 +1715,14 @@ LInstruction* LChunkBuilder::DoPower(HPower* instr) {
 
 LInstruction* LChunkBuilder::DoRandom(HRandom* instr) {
   ASSERT(instr->representation().IsDouble());
-  ASSERT(instr->global_object()->representation().IsSmiOrTagged());
-  LOperand* global_object = UseFixed(instr->global_object(), eax);
-  LRandom* result = new(zone()) LRandom(global_object);
-  return MarkAsCall(DefineFixedDouble(result, xmm1), instr);
+  ASSERT(instr->global_object()->representation().IsTagged());
+  LOperand* global_object = UseTempRegister(instr->global_object());
+  LOperand* scratch = TempRegister();
+  LOperand* scratch2 = TempRegister();
+  LOperand* scratch3 = TempRegister();
+  LRandom* result = new(zone()) LRandom(
+      global_object, scratch, scratch2, scratch3);
+  return DefineFixedDouble(result, xmm1);
 }