commit 0c20e676f8a0209982ff89e5a9c707771748a585
author fschneider@chromium.org <fschneider@chromium.org@ce2b1a6d-e550-0410-aec6-3dcde31c8c00> Thu Jan 14 15:28:53 2010 +0000
committer fschneider@chromium.org <fschneider@chromium.org@ce2b1a6d-e550-0410-aec6-3dcde31c8c00> Thu Jan 14 15:28:53 2010 +0000
tree add844d05e66d871f65d5f3617061bf1eb030991
parent f1579406c6fc3424517d12f711df73b3d23ea967

Version 2.0.6

        Added ES5 Object.getPrototypeOf, GetOwnPropertyDescriptor,
        GetOwnProperty, FromPropertyDescriptor.

        Fixed Mac x64 build errors.

        Improved performance of some math and string operations.

        Improved performance of some regexp operations.

        Improved performance of context creation.

        Improved performance of hash tables.


git-svn-id: http://v8.googlecode.com/svn/trunk@3608 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/ia32/stub-cache-ia32.cc

diff --git a/src/ia32/stub-cache-ia32.cc b/src/ia32/stub-cache-ia32.cc
index 75e478b..2184230 100644
--- a/src/ia32/stub-cache-ia32.cc
+++ b/src/ia32/stub-cache-ia32.cc
@@ -236,7 +236,7 @@
   // Load length from the string and convert to a smi.
   __ bind(&load_length);
   __ mov(eax, FieldOperand(receiver, String::kLengthOffset));
-  __ shl(eax, kSmiTagSize);
+  __ SmiTag(eax);
   __ ret(0);
 
   // Check if the object is a JSValue wrapper.
@@ -1900,17 +1900,23 @@
   // depending on the this.x = ...; assignment in the function.
   for (int i = 0; i < shared->this_property_assignments_count(); i++) {
     if (shared->IsThisPropertyAssignmentArgument(i)) {
-      Label not_passed;
-      // Set the property to undefined.
-      __ mov(Operand(edx, i * kPointerSize), edi);
       // Check if the argument assigned to the property is actually passed.
+      // If argument is not passed the property is set to undefined,
+      // otherwise find it on the stack.
       int arg_number = shared->GetThisPropertyAssignmentArgument(i);
+      __ mov(ebx, edi);
       __ cmp(eax, arg_number);
-      __ j(below_equal, &not_passed);
-      // Argument passed - find it on the stack.
-      __ mov(ebx, Operand(ecx, arg_number * -kPointerSize));
+      if (CpuFeatures::IsSupported(CMOV)) {
+        CpuFeatures::Scope use_cmov(CMOV);
+        __ cmov(above, ebx, Operand(ecx, arg_number * -kPointerSize));
+      } else {
+        Label not_passed;
+        __ j(below_equal, &not_passed);
+        __ mov(ebx, Operand(ecx, arg_number * -kPointerSize));
+        __ bind(&not_passed);
+      }
+      // Store value in the property.
       __ mov(Operand(edx, i * kPointerSize), ebx);
-      __ bind(&not_passed);
     } else {
       // Set the property to the constant value.
       Handle<Object> constant(shared->GetThisPropertyAssignmentConstant(i));