Minimize uses of lazy initialization by adding explicit initialization functions.

src/frames.cc

Index: src/frames.cc
diff --git a/src/frames.cc b/src/frames.cc
index 0571a813f5e56b45922ac6ee3a76dc78940749ad..7e632f58e0fffc53446027a67cc891addb299462 100644
--- a/src/frames.cc
+++ b/src/frames.cc
@@ -1369,7 +1369,7 @@ int NumRegs(RegList reglist) {
 
 
 struct JSCallerSavedCodeData {
-  JSCallerSavedCodeData() {
+  void Init() {

[danno, 2012/04/04 20:47:57]

How about putting this directly in SetUpJSCallerSavedCodeData? I don't see the
need for the function on the struct any more.

[Philippe, 2012/04/05 11:30:18]

Done.

     int i = 0;
     for (int r = 0; r < kNumRegs; r++)
       if ((kJSCallerSaved & (1 << r)) != 0)
@@ -1380,13 +1380,15 @@ struct JSCallerSavedCodeData {
   int reg_code[kNumJSCallerSaved];
 };
 
+JSCallerSavedCodeData caller_saved_code_data;
 
-static LazyInstance<JSCallerSavedCodeData>::type caller_saved_code_data =
-    LAZY_INSTANCE_INITIALIZER;
+void SetUpJSCallerSavedCodeData() {
+  caller_saved_code_data.Init();
+}
 
 int JSCallerSavedCode(int n) {
   ASSERT(0 <= n && n < kNumJSCallerSaved);
-  return caller_saved_code_data.Get().reg_code[n];
+  return caller_saved_code_data.reg_code[n];
 }