* No failures on our own tests....

src/assembler-re2k-inl.h

 // 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 20 matching lines @@
 #include "v8.h"
 #include "ast.h"
 #include "bytecodes-re2k.h"
 #include "assembler-re2k.h"
 
 
 namespace v8 { namespace internal {
 
 
 void Re2kAssembler::Emit(uint32_t byte) {
+  ASSERT(pc_ <= buffer_.length());
+  if (pc_ == buffer_.length()) {
+    Expand();
+  }
   buffer_[pc_++] = byte;
 }
 
 
 void Re2kAssembler::Emit16(uint32_t word) {
+  ASSERT(pc_ <= buffer_.length());
+  if (pc_ + 1 >= buffer_.length()) {
+    Expand();
+  }
   Store16(buffer_.start() + pc_, word);
   pc_ += 2;
 }
 
 
 void Re2kAssembler::Emit32(uint32_t word) {
+  ASSERT(pc_ <= buffer_.length());
+  if (pc_ + 3 >= buffer_.length()) {
+    Expand();
+  }
   Store32(buffer_.start() + pc_, word);
   pc_ += 4;
 }
 
 
 void Re2kAssembler::EmitOrLink(Label* l) {
     if (l->is_bound()) {
       Emit32(l->pos());
     } else {
       int pos = 0;
       if (l->is_linked()) {
         pos = l->pos();
       }
       l->link_to(pc_);
       Emit32(pos);
     }
   }
 
 } }  // namespace v8::internal