* Move irregexp backtrack stack to external memory area, instead of the system stack.

src/regexp-macro-assembler-tracer.cc

 // Copyright 2008 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 58 matching lines @@
   assembler_->CheckGreedyLoop(label);
 }
 
 
 void RegExpMacroAssemblerTracer::PopCurrentPosition() {
   PrintF(" PopCurrentPosition();\n");
   assembler_->PopCurrentPosition();
 }
 
 
-void RegExpMacroAssemblerTracer::PushCurrentPosition() {
-  PrintF(" PushCurrentPosition();\n");
-  assembler_->PushCurrentPosition();
+void RegExpMacroAssemblerTracer::PushCurrentPosition(
+    StackCheckFlag check_stack_limit) {
+  PrintF(" PushCurrentPosition(%s);\n",
+         check_stack_limit ? "check stack limit" : "");
+  assembler_->PushCurrentPosition(check_stack_limit);
 }
 
 
 void RegExpMacroAssemblerTracer::Backtrack() {
   PrintF(" Backtrack();\n");
   assembler_->Backtrack();
 }
 
 
 void RegExpMacroAssemblerTracer::GoTo(Label* label) {
   PrintF(" GoTo(label[%08x]);\n\n", label);
   assembler_->GoTo(label);
 }
 
 
-void RegExpMacroAssemblerTracer::PushBacktrack(Label* label) {
-  PrintF(" PushBacktrack(label[%08x]);\n", label);
-  assembler_->PushBacktrack(label);
+void RegExpMacroAssemblerTracer::PushBacktrack(
+    Label* label,
+    StackCheckFlag check_stack_limit) {
+  PrintF(" PushBacktrack(label[%08x], %s);\n",
+         label,
+         check_stack_limit ? "check stack limit" : "");
+  assembler_->PushBacktrack(label, check_stack_limit);
 }
 
 
 void RegExpMacroAssemblerTracer::Succeed() {
   PrintF(" Succeed();\n");
   assembler_->Succeed();
 }
 
 
 void RegExpMacroAssemblerTracer::Fail() {
   PrintF(" Fail();\n");
   assembler_->Fail();
 }
 
 
 void RegExpMacroAssemblerTracer::PopRegister(int register_index) {
   PrintF(" PopRegister(register=%d);\n", register_index);
   assembler_->PopRegister(register_index);
 }
 
 
-void RegExpMacroAssemblerTracer::PushRegister(int register_index) {
-  PrintF(" PushRegister(register=%d);\n", register_index);
-  assembler_->PushRegister(register_index);
+void RegExpMacroAssemblerTracer::PushRegister(
+    int register_index,
+    StackCheckFlag check_stack_limit) {
+  PrintF(" PushRegister(register=%d, %s);\n",
+         register_index,
+         check_stack_limit ? "check stack limit" : "");
+  assembler_->PushRegister(register_index, check_stack_limit);
 }
 
 
 void RegExpMacroAssemblerTracer::AdvanceRegister(int reg, int by) {
   PrintF(" AdvanceRegister(register=%d, by=%d);\n", reg, by);
   assembler_->AdvanceRegister(reg, by);
 }
 
 
 void RegExpMacroAssemblerTracer::SetRegister(int register_index, int to) {
@@ skipping 260 matching lines @@
   return assembler_->Implementation();
 }
 
 
 Handle<Object> RegExpMacroAssemblerTracer::GetCode(Handle<String> source) {
   PrintF(" GetCode(%s);\n", *(source->ToCString()));
   return assembler_->GetCode(source);
 }
 
 }}  // namespace v8::internal