Replace special IC builtins and stubs in the map's cache by codestubs.

src/arm/code-stubs-arm.cc

Index: src/arm/code-stubs-arm.cc
diff --git a/src/arm/code-stubs-arm.cc b/src/arm/code-stubs-arm.cc
index 521231c02ab7efb5db9720fde2630983492204e3..4b2de4bf73d26680409842c99e285f1267721b10 100644
--- a/src/arm/code-stubs-arm.cc
+++ b/src/arm/code-stubs-arm.cc
@@ -32,6 +32,7 @@
 #include "bootstrapper.h"
 #include "code-stubs.h"
 #include "regexp-macro-assembler.h"
+#include "stub-cache.h"
 
 namespace v8 {
 namespace internal {
@@ -4502,6 +4503,36 @@ void InstanceofStub::Generate(MacroAssembler* masm) {
 }
 
 
+void StringLengthStub::Generate(MacroAssembler* masm) {
+  Label miss;
+  Register receiver;
+  if (kind_ == Code::KEYED_LOAD_IC) {
+    // ----------- S t a t e -------------
+    //  -- lr    : return address
+    //  -- r0    : key
+    //  -- r1    : receiver
+    // -----------------------------------
+    __ cmp(r0, Operand(masm->isolate()->factory()->length_symbol()));
+    __ b(ne, &miss);
+    receiver = r1;
+  } else {

[Jakob Kummerow, 2013/01/21 14:41:39]

Please add an ASSERT(kind_ == Code::LOAD_IC) for documentation purposes. (Same
on x64.)

[Toon Verwaest, 2013/01/21 14:51:17]

Done.

+    // ----------- S t a t e -------------
+    //  -- r2    : name
+    //  -- lr    : return address
+    //  -- r0    : receiver
+    //  -- sp[0] : receiver
+    // -----------------------------------
+    receiver = r0;
+  }
+
+  StubCompiler::GenerateLoadStringLength(masm, receiver, r3, r4, &miss,
+                                         support_wrapper_);
+
+  __ bind(&miss);
+  StubCompiler::GenerateLoadMiss(masm, kind_);
+}
+
+
 Register InstanceofStub::left() { return r0; }