Age code to allow reclaiming old unexecuted functions

src/ia32/lithium-codegen-ia32.cc

Index: src/ia32/lithium-codegen-ia32.cc
diff --git a/src/ia32/lithium-codegen-ia32.cc b/src/ia32/lithium-codegen-ia32.cc
index 32c66a05f509df7df7d7314401f628dfbdcf4e87..d229baf738a321ddbaed6e6a6afceacb2cbdae85 100644
--- a/src/ia32/lithium-codegen-ia32.cc
+++ b/src/ia32/lithium-codegen-ia32.cc
@@ -140,6 +140,8 @@ bool LCodeGen::GeneratePrologue() {
   // receiver object). ecx is zero for method calls and non-zero for
   // function calls.
   if (!info_->is_classic_mode() || info_->is_native()) {
+    Label begin;
+    __ bind(&begin);
     Label ok;
     __ test(ecx, Operand(ecx));
     __ j(zero, &ok, Label::kNear);
@@ -148,10 +150,13 @@ bool LCodeGen::GeneratePrologue() {
     __ mov(Operand(esp, receiver_offset),
            Immediate(isolate()->factory()->undefined_value()));
     __ bind(&ok);
+    ASSERT_EQ(kSizeOfOptimizedStrictModePrologue, ok.pos() - begin.pos());
   }
 
 
   if (dynamic_frame_alignment_) {
+    Label begin;
+    __ bind(&begin);
     // Move state of dynamic frame alignment into edx.
     __ mov(edx, Immediate(kNoAlignmentPadding));
 
@@ -174,6 +179,8 @@ 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());
   }
 
   __ push(ebp);  // Caller's frame pointer.