Remove support for branch hints from the IA32 and X64 assembler.

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 287 matching lines @@
     int start_reg,
     Label* on_no_match) {
   Label fallthrough;
   __ mov(edx, register_location(start_reg));  // Index of start of capture
   __ mov(ebx, register_location(start_reg + 1));  // Index of end of capture
   __ sub(ebx, Operand(edx));  // Length of capture.
 
   // The length of a capture should not be negative. This can only happen
   // if the end of the capture is unrecorded, or at a point earlier than
   // the start of the capture.
-  BranchOrBacktrack(less, on_no_match, not_taken);
+  BranchOrBacktrack(less, on_no_match);
 
   // If length is zero, either the capture is empty or it is completely
   // uncaptured. In either case succeed immediately.
   __ j(equal, &fallthrough);
 
   if (mode_ == ASCII) {
     Label success;
     Label fail;
     Label loop_increment;
     // Save register contents to make the registers available below.
@@ skipping 22 matching lines @@
 
     __ cmp(eax, Operand(ecx));
     __ j(not_equal, &fail);
 
     __ bind(&loop_increment);
     // Increment pointers into match and capture strings.
     __ add(Operand(edx), Immediate(1));
     __ add(Operand(edi), Immediate(1));
     // Compare to end of match, and loop if not done.
     __ cmp(edi, Operand(ebx));
-    __ j(below, &loop, taken);
+    __ j(below, &loop);
     __ jmp(&success);
 
     __ bind(&fail);
     // Restore original values before failing.
     __ pop(backtrack_stackpointer());
     __ pop(edi);
     BranchOrBacktrack(no_condition, on_no_match);
 
     __ bind(&success);
     // Restore original value before continuing.
@@ skipping 318 matching lines @@
 
   // Check if we have space on the stack for registers.
   Label stack_limit_hit;
   Label stack_ok;
 
   ExternalReference stack_limit =
       ExternalReference::address_of_stack_limit(masm_->isolate());
   __ mov(ecx, esp);
   __ sub(ecx, Operand::StaticVariable(stack_limit));
   // Handle it if the stack pointer is already below the stack limit.
-  __ j(below_equal, &stack_limit_hit, not_taken);
+  __ j(below_equal, &stack_limit_hit);
   // Check if there is room for the variable number of registers above
   // the stack limit.
   __ cmp(ecx, num_registers_ * kPointerSize);
-  __ j(above_equal, &stack_ok, taken);
+  __ j(above_equal, &stack_ok);
   // Exit with OutOfMemory exception. There is not enough space on the stack
   // for our working registers.
   __ mov(eax, EXCEPTION);
   __ jmp(&exit_label_);
 
   __ bind(&stack_limit_hit);
   CallCheckStackGuardState(ebx);
   __ or_(eax, Operand(eax));
   // If returned value is non-zero, we exit with the returned value as result.
   __ j(not_zero, &exit_label_);
@@ skipping 430 matching lines @@
 
 
 void RegExpMacroAssemblerIA32::CheckPosition(int cp_offset,
                                              Label* on_outside_input) {
   __ cmp(edi, -cp_offset * char_size());
   BranchOrBacktrack(greater_equal, on_outside_input);
 }
 
 
 void RegExpMacroAssemblerIA32::BranchOrBacktrack(Condition condition,
-                                                 Label* to,
-                                                 Hint hint) {
+                                                 Label* to) {
   if (condition < 0) {  // No condition
     if (to == NULL) {
       Backtrack();
       return;
     }
     __ jmp(to);
     return;
   }
   if (to == NULL) {
-    __ j(condition, &backtrack_label_, hint);
+    __ j(condition, &backtrack_label_);
     return;
   }
-  __ j(condition, to, hint);
+  __ j(condition, to);
 }
 
 
 void RegExpMacroAssemblerIA32::SafeCall(Label* to) {
   Label return_to;
   __ push(Immediate::CodeRelativeOffset(&return_to));
   __ jmp(to);
   __ bind(&return_to);
 }
 
@@ skipping 32 matching lines @@
   __ add(Operand(backtrack_stackpointer()), Immediate(kPointerSize));
 }
 
 
 void RegExpMacroAssemblerIA32::CheckPreemption() {
   // Check for preemption.
   Label no_preempt;
   ExternalReference stack_limit =
       ExternalReference::address_of_stack_limit(masm_->isolate());
   __ cmp(esp, Operand::StaticVariable(stack_limit));
-  __ j(above, &no_preempt, taken);
+  __ j(above, &no_preempt);
 
   SafeCall(&check_preempt_label_);
 
   __ bind(&no_preempt);
 }
 
 
 void RegExpMacroAssemblerIA32::CheckStackLimit() {
   Label no_stack_overflow;
   ExternalReference stack_limit =
@@ skipping 32 matching lines @@
 }
 
 
 #undef __
 
 #endif  // V8_INTERPRETED_REGEXP
 
 }}  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_IA32