Refactor MacroAssembler::Prologue.

src/ia32/macro-assembler-ia32.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "v8.h"
 
 #if V8_TARGET_ARCH_IA32
 
 #include "bootstrapper.h"
 #include "codegen.h"
@@ skipping 882 matching lines @@
 
 
 void MacroAssembler::AssertNotSmi(Register object) {
   if (emit_debug_code()) {
     test(object, Immediate(kSmiTagMask));
     Check(not_equal, kOperandIsASmi);
   }
 }
 
 
-void MacroAssembler::Prologue(CompilationInfo* info) {
-  if (info->IsStub()) {
+void MacroAssembler::StubPrologue() {
+  push(ebp);  // Caller's frame pointer.
+  mov(ebp, esp);
+  push(esi);  // Callee's context.
+  push(Immediate(Smi::FromInt(StackFrame::STUB)));
+}
+
+
+void MacroAssembler::Prologue(bool code_pre_aging) {
+  PredictableCodeSizeScope predictible_code_size_scope(this,
+      kNoCodeAgeSequenceLength);
+  if (code_pre_aging) {
+      // Pre-age the code.
+    call(isolate()->builtins()->MarkCodeAsExecutedOnce(),
+        RelocInfo::CODE_AGE_SEQUENCE);
+    Nop(kNoCodeAgeSequenceLength - Assembler::kCallInstructionLength);
+  } else {
     push(ebp);  // Caller's frame pointer.
     mov(ebp, esp);
     push(esi);  // Callee's context.
-    push(Immediate(Smi::FromInt(StackFrame::STUB)));
-  } else {
-    PredictableCodeSizeScope predictible_code_size_scope(this,
-        kNoCodeAgeSequenceLength);
-    if (info->IsCodePreAgingActive()) {
-        // Pre-age the code.
-      call(isolate()->builtins()->MarkCodeAsExecutedOnce(),
-          RelocInfo::CODE_AGE_SEQUENCE);
-      Nop(kNoCodeAgeSequenceLength - Assembler::kCallInstructionLength);
-    } else {
-      push(ebp);  // Caller's frame pointer.
-      mov(ebp, esp);
-      push(esi);  // Callee's context.
-      push(edi);  // Callee's JS function.
-    }
+    push(edi);  // Callee's JS function.
   }
 }
 
 
 void MacroAssembler::EnterFrame(StackFrame::Type type) {
   push(ebp);
   mov(ebp, esp);
   push(esi);
   push(Immediate(Smi::FromInt(type)));
   push(Immediate(CodeObject()));
@@ skipping 2525 matching lines @@
   if (ms.shift() > 0) sar(edx, ms.shift());
   mov(eax, dividend);
   shr(eax, 31);
   add(edx, eax);
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_IA32