Only pass isolate parameter to C helper functions that need it.

src/ia32/regexp-macro-assembler-ia32.cc

 // Copyright 2008-2009 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 354 matching lines @@
     // Compute new value of character position after the matched part.
     __ sub(edi, Operand(esi));
   } else {
     ASSERT(mode_ == UC16);
     // Save registers before calling C function.
     __ push(esi);
     __ push(edi);
     __ push(backtrack_stackpointer());
     __ push(ebx);
 
-    static const int argument_count = 3;
+    static const int argument_count = 4;
     __ PrepareCallCFunction(argument_count, ecx);
     // Put arguments into allocated stack area, last argument highest on stack.
     // Parameters are
     //   Address byte_offset1 - Address captured substring's start.
     //   Address byte_offset2 - Address of current character position.
     //   size_t byte_length - length of capture in bytes(!)
+    //   Isolate* isolate
 
+    // Set isolate.
+    __ mov(Operand(esp, 3 * kPointerSize),
+           Immediate(ExternalReference::isolate_address()));
     // Set byte_length.
     __ mov(Operand(esp, 2 * kPointerSize), ebx);
     // Set byte_offset2.
     // Found by adding negative string-end offset of current position (edi)
     // to end of string.
     __ add(edi, Operand(esi));
     __ mov(Operand(esp, 1 * kPointerSize), edi);
     // Set byte_offset1.
     // Start of capture, where edx already holds string-end negative offset.
     __ add(edx, Operand(esi));
@@ skipping 438 matching lines @@
   if (stack_overflow_label_.is_linked()) {
     SafeCallTarget(&stack_overflow_label_);
     // Reached if the backtrack-stack limit has been hit.
 
     Label grow_failed;
     // Save registers before calling C function
     __ push(esi);
     __ push(edi);
 
     // Call GrowStack(backtrack_stackpointer())
-    static const int num_arguments = 2;
+    static const int num_arguments = 3;
     __ PrepareCallCFunction(num_arguments, ebx);
+    __ mov(Operand(esp, 2 * kPointerSize),
+           Immediate(ExternalReference::isolate_address()));
     __ lea(eax, Operand(ebp, kStackHighEnd));
     __ mov(Operand(esp, 1 * kPointerSize), eax);
     __ mov(Operand(esp, 0 * kPointerSize), backtrack_stackpointer());
     ExternalReference grow_stack =
         ExternalReference::re_grow_stack(masm_->isolate());
     __ CallCFunction(grow_stack, num_arguments);
     // If return NULL, we have failed to grow the stack, and
     // must exit with a stack-overflow exception.
     __ or_(eax, Operand(eax));
     __ j(equal, &exit_with_exception);
@@ skipping 396 matching lines @@
 }
 
 
 #undef __
 
 #endif  // V8_INTERPRETED_REGEXP
 
 }}  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_IA32