Specialize GenericUnaryStub so that it knows whether it needs to...

src/codegen.cc

 // Copyright 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 442 matching lines @@
 void CodeGenerator::CodeForSourcePosition(int pos) {
   if (FLAG_debug_info && pos != RelocInfo::kNoPosition) {
     masm()->RecordPosition(pos);
   }
 }
 
 
 const char* GenericUnaryOpStub::GetName() {
   switch (op_) {
     case Token::SUB:
-      return overwrite_
-          ? "GenericUnaryOpStub_SUB_Overwrite"
-          : "GenericUnaryOpStub_SUB_Alloc";
+      if (negative_zero_ == kStrictNegativeZero) {
+        return overwrite_ == UNARY_OVERWRITE
+            ? "GenericUnaryOpStub_SUB_Overwrite_Strict0"
+            : "GenericUnaryOpStub_SUB_Alloc_Strict0";
+      } else {
+        return overwrite_ == UNARY_OVERWRITE
+            ? "GenericUnaryOpStub_SUB_Overwrite_Ignore0"
+            : "GenericUnaryOpStub_SUB_Alloc_Ignore0";
+      }
     case Token::BIT_NOT:
-      return overwrite_
+      return overwrite_ == UNARY_OVERWRITE
           ? "GenericUnaryOpStub_BIT_NOT_Overwrite"
           : "GenericUnaryOpStub_BIT_NOT_Alloc";
     default:
       UNREACHABLE();
       return "<unknown>";
   }
 }
 
 
 void ArgumentsAccessStub::Generate(MacroAssembler* masm) {
@@ skipping 25 matching lines @@
   }
 }
 
 
 void ApiGetterEntryStub::SetCustomCache(Code* value) {
   info()->set_load_stub_cache(value);
 }
 
 
 } }  // namespace v8::internal