Version 2.0.4
Added ECMAScript 5 Object.create.
Improved performance of Math.max and Math.min.
Optimized adding of strings on 64-bit platforms.
Improved handling of external strings by using a separate table instead of weak handles. This improves garbage collection performance and uses less memory.
Changed code generation for object and array literals in toplevel code to be more compact by doing more work in the runtime.
Fixed a crash bug triggered when garbage collection happened during generation of a callback load inline cache stub.
Fixed crash bug sometimes triggered when local variables shadowed parameters in functions that used the arguments object.
git-svn-id: http://v8.googlecode.com/svn/trunk@3475 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
diff --git a/src/x64/macro-assembler-x64.h b/src/x64/macro-assembler-x64.h
index 9e7c25c..9720005 100644
--- a/src/x64/macro-assembler-x64.h
+++ b/src/x64/macro-assembler-x64.h
@@ -400,7 +400,7 @@
void Test(const Operand& dst, Smi* source);
// ---------------------------------------------------------------------------
- // Macro instructions
+ // Macro instructions.
// Load a register with a long value as efficiently as possible.
void Set(Register dst, int64_t x);
@@ -412,6 +412,8 @@
void Cmp(Register dst, Handle<Object> source);
void Cmp(const Operand& dst, Handle<Object> source);
void Push(Handle<Object> source);
+ void Drop(int stack_elements);
+ void Call(Label* target) { call(target); }
// Control Flow
void Jump(Address destination, RelocInfo::Mode rmode);
@@ -443,6 +445,8 @@
// address must be pushed before calling this helper.
void PushTryHandler(CodeLocation try_location, HandlerType type);
+ // Unlink the stack handler on top of the stack from the try handler chain.
+ void PopTryHandler();
// ---------------------------------------------------------------------------
// Inline caching support
@@ -518,6 +522,32 @@
Register scratch,
Label* gc_required);
+ // Allocate a sequential string. All the header fields of the string object
+ // are initialized.
+ void AllocateTwoByteString(Register result,
+ Register length,
+ Register scratch1,
+ Register scratch2,
+ Register scratch3,
+ Label* gc_required);
+ void AllocateAsciiString(Register result,
+ Register length,
+ Register scratch1,
+ Register scratch2,
+ Register scratch3,
+ Label* gc_required);
+
+ // Allocate a raw cons string object. Only the map field of the result is
+ // initialized.
+ void AllocateConsString(Register result,
+ Register scratch1,
+ Register scratch2,
+ Label* gc_required);
+ void AllocateAsciiConsString(Register result,
+ Register scratch1,
+ Register scratch2,
+ Label* gc_required);
+
// ---------------------------------------------------------------------------
// Support functions.
@@ -557,6 +587,9 @@
// Call a code stub.
void CallStub(CodeStub* stub);
+ // Tail call a code stub (jump).
+ void TailCallStub(CodeStub* stub);
+
// Return from a code stub after popping its arguments.
void StubReturn(int argc);