Merge 6800:7180 from the bleeding edge branch to the experimental/gc branch.

src/x64/code-stubs-x64.h

-// Copyright 2010 the V8 project authors. All rights reserved.
+// Copyright 2011 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
 //       with the distribution.
@@ skipping 20 matching lines @@
 #include "type-info.h"
 
 namespace v8 {
 namespace internal {
 
 
 // Compute a transcendental math function natively, or call the
 // TranscendentalCache runtime function.
 class TranscendentalCacheStub: public CodeStub {
  public:
-  explicit TranscendentalCacheStub(TranscendentalCache::Type type)
-      : type_(type) {}
+  enum ArgumentType {
+    TAGGED = 0,
+    UNTAGGED = 1 << TranscendentalCache::kTranscendentalTypeBits
+  };
+
+  explicit TranscendentalCacheStub(TranscendentalCache::Type type,
+                                   ArgumentType argument_type)
+      : type_(type), argument_type_(argument_type) {}
   void Generate(MacroAssembler* masm);
  private:
   TranscendentalCache::Type type_;
+  ArgumentType argument_type_;
+
   Major MajorKey() { return TranscendentalCache; }
-  int MinorKey() { return type_; }
+  int MinorKey() { return type_ | argument_type_; }
   Runtime::FunctionId RuntimeFunction();
-  void GenerateOperation(MacroAssembler* masm, Label* on_nan_result);
+  void GenerateOperation(MacroAssembler* masm);
 };
 
 
 class ToBooleanStub: public CodeStub {
  public:
   ToBooleanStub() { }
 
   void Generate(MacroAssembler* masm);
 
  private:
@@ skipping 307 matching lines @@
                                   Register scratch);
 
  private:
   DISALLOW_IMPLICIT_CONSTRUCTORS(StringHelper);
 };
 
 
 // Flag that indicates how to generate code for the stub StringAddStub.
 enum StringAddFlags {
   NO_STRING_ADD_FLAGS = 0,
-  NO_STRING_CHECK_IN_STUB = 1 << 0  // Omit string check in stub.
+  // Omit left string check in stub (left is definitely a string).
+  NO_STRING_CHECK_LEFT_IN_STUB = 1 << 0,
+  // Omit right string check in stub (right is definitely a string).
+  NO_STRING_CHECK_RIGHT_IN_STUB = 1 << 1,
+  // Omit both string checks in stub.
+  NO_STRING_CHECK_IN_STUB =
+      NO_STRING_CHECK_LEFT_IN_STUB | NO_STRING_CHECK_RIGHT_IN_STUB
 };
 
 
 class StringAddStub: public CodeStub {
  public:
-  explicit StringAddStub(StringAddFlags flags) {
-    string_check_ = ((flags & NO_STRING_CHECK_IN_STUB) == 0);
-  }
+  explicit StringAddStub(StringAddFlags flags) : flags_(flags) {}
 
  private:
   Major MajorKey() { return StringAdd; }
-  int MinorKey() { return string_check_ ? 0 : 1; }
+  int MinorKey() { return flags_; }
 
   void Generate(MacroAssembler* masm);
 
-  // Should the stub check whether arguments are strings?
-  bool string_check_;
+  void GenerateConvertArgument(MacroAssembler* masm,
+                               int stack_offset,
+                               Register arg,
+                               Register scratch1,
+                               Register scratch2,
+                               Register scratch3,
+                               Label* slow);
+
+  const StringAddFlags flags_;
 };
 
 
 class SubStringStub: public CodeStub {
  public:
   SubStringStub() {}
 
  private:
   Major MajorKey() { return SubString; }
   int MinorKey() { return 0; }
@@ skipping 54 matching lines @@
   const char* GetName() { return "NumberToStringStub"; }
 
 #ifdef DEBUG
   void Print() {
     PrintF("NumberToStringStub\n");
   }
 #endif
 };
 
 
-// Generate code to load an element from a pixel array. The receiver is assumed
-// to not be a smi and to have elements, the caller must guarantee this
-// precondition. If key is not a smi, then the generated code branches to
-// key_not_smi. Callers can specify NULL for key_not_smi to signal that a smi
-// check has already been performed on key so that the smi check is not
-// generated. If key is not a valid index within the bounds of the pixel array,
-// the generated code jumps to out_of_range. receiver, key and elements are
-// unchanged throughout the generated code sequence.
-void GenerateFastPixelArrayLoad(MacroAssembler* masm,
-                                Register receiver,
-                                Register key,
-                                Register elements,
-                                Register untagged_key,
-                                Register result,
-                                Label* not_pixel_array,
-                                Label* key_not_smi,
-                                Label* out_of_range);
-
-// Generate code to store an element into a pixel array, clamping values between
-// [0..255]. The receiver is assumed to not be a smi and to have elements, the
-// caller must guarantee this precondition. If key is not a smi, then the
-// generated code branches to key_not_smi. Callers can specify NULL for
-// key_not_smi to signal that a smi check has already been performed on key so
-// that the smi check is not generated. If the value is not a smi, the
-// generated code will branch to value_not_smi.  If the receiver
-// doesn't have pixel array elements, the generated code will branch to
-// not_pixel_array, unless not_pixel_array is NULL, in which case the caller
-// must ensure that the receiver has pixel array elements.  If key is not a
-// valid index within the bounds of the pixel array, the generated code jumps to
-// out_of_range.
-void GenerateFastPixelArrayStore(MacroAssembler* masm,
-                                 Register receiver,
-                                 Register key,
-                                 Register value,
-                                 Register elements,
-                                 Register scratch1,
-                                 bool load_elements_from_receiver,
-                                 bool key_is_untagged,
-                                 Label* key_not_smi,
-                                 Label* value_not_smi,
-                                 Label* not_pixel_array,
-                                 Label* out_of_range);
-
 } }  // namespace v8::internal
 
 #endif  // V8_X64_CODE_STUBS_X64_H_