Refactor MacroAssembler::Prologue.

src/arm/macro-assembler-arm.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 <limits.h>  // For LONG_MIN, LONG_MAX.
 
 #include "v8.h"
 
 #if V8_TARGET_ARCH_ARM
 
@@ skipping 884 matching lines @@
 void MacroAssembler::LoadConstantPoolPointerRegister() {
   if (FLAG_enable_ool_constant_pool) {
     int constant_pool_offset = Code::kConstantPoolOffset - Code::kHeaderSize -
         pc_offset() - Instruction::kPCReadOffset;
     ASSERT(ImmediateFitsAddrMode2Instruction(constant_pool_offset));
     ldr(pp, MemOperand(pc, constant_pool_offset));
   }
 }
 
 
-void MacroAssembler::Prologue(CompilationInfo* info) {
-  if (info->IsStub()) {
-    PushFixedFrame();
-    Push(Smi::FromInt(StackFrame::STUB));
+void MacroAssembler::StubPrologue() {
+  PushFixedFrame();
+  Push(Smi::FromInt(StackFrame::STUB));
+  // Adjust FP to point to saved FP.
+  add(fp, sp, Operand(StandardFrameConstants::kFixedFrameSizeFromFp));
+  if (FLAG_enable_ool_constant_pool) {
+    LoadConstantPoolPointerRegister();
+    set_constant_pool_available(true);
+  }
+}
+
+
+void MacroAssembler::Prologue(bool code_pre_aging) {
+  PredictableCodeSizeScope predictible_code_size_scope(
+      this, kNoCodeAgeSequenceLength);
+  // The following three instructions must remain together and unmodified
+  // for code aging to work properly.
+  if (code_pre_aging) {
+    // Pre-age the code.
+    Code* stub = Code::GetPreAgedCodeAgeStub(isolate());
+    add(r0, pc, Operand(-8));
+    ldr(pc, MemOperand(pc, -4));
+    emit_code_stub_address(stub);
+  } else {
+    PushFixedFrame(r1);
+    nop(ip.code());
     // Adjust FP to point to saved FP.
     add(fp, sp, Operand(StandardFrameConstants::kFixedFrameSizeFromFp));
-  } else {
-    PredictableCodeSizeScope predictible_code_size_scope(
-        this, kNoCodeAgeSequenceLength);
-    // The following three instructions must remain together and unmodified
-    // for code aging to work properly.
-    if (info->IsCodePreAgingActive()) {
-      // Pre-age the code.
-      Code* stub = Code::GetPreAgedCodeAgeStub(isolate());
-      add(r0, pc, Operand(-8));
-      ldr(pc, MemOperand(pc, -4));
-      emit_code_stub_address(stub);
-    } else {
-      PushFixedFrame(r1);
-      nop(ip.code());
-      // Adjust FP to point to saved FP.
-      add(fp, sp, Operand(StandardFrameConstants::kFixedFrameSizeFromFp));
-    }
   }
   if (FLAG_enable_ool_constant_pool) {
     LoadConstantPoolPointerRegister();
     set_constant_pool_available(true);
   }
 }
 
 
 void MacroAssembler::EnterFrame(StackFrame::Type type,
                                 bool load_constant_pool) {
@@ skipping 3120 matching lines @@
     sub(result, result, Operand(dividend));
   }
   if (ms.shift() > 0) mov(result, Operand(result, ASR, ms.shift()));
   add(result, result, Operand(dividend, LSR, 31));
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_ARM