Support inlining and crankshaft optimization of Math.random.

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 9c2ff6f8857359e1df8efc1692c46b952034a112..8f7a28fbed915c22a7c4f76b0879b76b623a652d 100644
--- a/src/ia32/lithium-ia32.cc
+++ b/src/ia32/lithium-ia32.cc
@@ -1,4 +1,4 @@
-// Copyright 2011 the V8 project authors. All rights reserved.
+// Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
@@ -1469,6 +1469,15 @@ LInstruction* LChunkBuilder::DoPower(HPower* instr) {
 }
 
 
+LInstruction* LChunkBuilder::DoRandom(HRandom* instr) {
+  ASSERT(instr->representation().IsDouble());
+  ASSERT(instr->global_object()->representation().IsTagged());
+  LOperand* global_object = UseFixed(instr->global_object(), eax);
+  LRandom* result = new(zone()) LRandom(global_object);
+  return MarkAsCall(DefineFixedDouble(result, xmm1), instr);
+}
+
+
 LInstruction* LChunkBuilder::DoCompareGeneric(HCompareGeneric* instr) {
   ASSERT(instr->left()->representation().IsTagged());
   ASSERT(instr->right()->representation().IsTagged());