Disable code aging due to bugs.

R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/11361182

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@12919 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/flag-definitions.h

@@ -396,7 +396,7 @@ DEFINE_bool(flush_code, true,
             "flush code that we expect not to use again (during full gc)")
 DEFINE_bool(flush_code_incrementally, false,
             "flush code that we expect not to use again (incrementally)")
-DEFINE_bool(age_code, true,
+DEFINE_bool(age_code, false,
             "track un-executed functions to age code and flush only "
             "old code")
 DEFINE_bool(incremental_marking, true, "use incremental marking")

src/ia32/full-codegen-ia32.cc

@@ -151,7 +151,8 @@ void FullCodeGenerator::Generate() {
     __ mov(Operand(esp, receiver_offset),
            Immediate(isolate()->factory()->undefined_value()));
     __ bind(&ok);
-    ASSERT_EQ(kSizeOfFullCodegenStrictModePrologue, ok.pos() - start.pos());
+    ASSERT(!FLAG_age_code ||
+           (kSizeOfFullCodegenStrictModePrologue == ok.pos() - start.pos()));
   }
 
   // Open a frame scope to indicate that there is a frame on the stack.  The

src/ia32/lithium-codegen-ia32.cc

@@ -150,7 +150,8 @@ bool LCodeGen::GeneratePrologue() {
     __ mov(Operand(esp, receiver_offset),
            Immediate(isolate()->factory()->undefined_value()));
     __ bind(&ok);
-    ASSERT_EQ(kSizeOfOptimizedStrictModePrologue, ok.pos() - begin.pos());
+    ASSERT(!FLAG_age_code ||
+           (kSizeOfOptimizedStrictModePrologue == ok.pos() - begin.pos()));
   }
 
 
@@ -179,8 +180,9 @@ bool LCodeGen::GeneratePrologue() {
     __ j(not_zero, &align_loop, Label::kNear);
     __ mov(Operand(ebx, 0), Immediate(kAlignmentZapValue));
     __ bind(&do_not_pad);
-    ASSERT_EQ(kSizeOfOptimizedAlignStackPrologue,
-              do_not_pad.pos() - begin.pos());
+    ASSERT(!FLAG_age_code ||
+           (kSizeOfOptimizedAlignStackPrologue ==
+            do_not_pad.pos() - begin.pos()));
   }
 
   __ push(ebp);  // Caller's frame pointer.

src/x64/full-codegen-x64.cc

@@ -147,7 +147,8 @@ void FullCodeGenerator::Generate() {
     __ LoadRoot(kScratchRegister, Heap::kUndefinedValueRootIndex);
     __ movq(Operand(rsp, receiver_offset), kScratchRegister);
     __ bind(&ok);
-    ASSERT_EQ(kSizeOfFullCodegenStrictModePrologue, ok.pos() - begin.pos());
+    ASSERT(!FLAG_age_code ||
+           (kSizeOfFullCodegenStrictModePrologue == ok.pos() - begin.pos()));
   }
 
   // Open a frame scope to indicate that there is a frame on the stack.  The

src/x64/lithium-codegen-x64.cc

@@ -143,7 +143,8 @@ bool LCodeGen::GeneratePrologue() {
     __ LoadRoot(kScratchRegister, Heap::kUndefinedValueRootIndex);
     __ movq(Operand(rsp, receiver_offset), kScratchRegister);
     __ bind(&ok);
-    ASSERT_EQ(kSizeOfOptimizedStrictModePrologue, ok.pos() - begin.pos());
+    ASSERT(!FLAG_age_code ||
+           (kSizeOfOptimizedStrictModePrologue == ok.pos() - begin.pos()));
   }
 
   __ push(rbp);  // Caller's frame pointer.