Increase coverage of global loads in optimized code...

src/arm/lithium-codegen-arm.cc

Index: src/arm/lithium-codegen-arm.cc
===================================================================
--- src/arm/lithium-codegen-arm.cc	(revision 7187)
+++ src/arm/lithium-codegen-arm.cc	(working copy)
@@ -2106,7 +2106,7 @@
 }
 
 
-void LCodeGen::DoLoadGlobal(LLoadGlobal* instr) {
+void LCodeGen::DoLoadGlobalCell(LLoadGlobalCell* instr) {
   Register result = ToRegister(instr->result());
   __ mov(ip, Operand(Handle<Object>(instr->hydrogen()->cell())));
   __ ldr(result, FieldMemOperand(ip, JSGlobalPropertyCell::kValueOffset));
@@ -2118,6 +2118,18 @@
 }
 
 
+void LCodeGen::DoLoadGlobalGeneric(LLoadGlobalGeneric* instr) {
+  ASSERT(ToRegister(instr->result()).is(r0));
+
+  __ ldr(r0, ContextOperand(cp, Context::GLOBAL_INDEX));
+  __ mov(r2, Operand(instr->name()));
+  RelocInfo::Mode mode = instr->for_typeof() ? RelocInfo::CODE_TARGET :
+                                               RelocInfo::CODE_TARGET_CONTEXT;
+  Handle<Code> ic(Builtins::builtin(Builtins::LoadIC_Initialize));
+  CallCode(ic, mode, instr);
+}
+
+
 void LCodeGen::DoStoreGlobal(LStoreGlobal* instr) {
   Register value = ToRegister(instr->InputAt(0));
   Register scratch = scratch0();