commit 33e09c8efd078308de3c77a88301566f65c07bef
author verwaest@chromium.org <verwaest@chromium.org@ce2b1a6d-e550-0410-aec6-3dcde31c8c00> Wed Oct 10 17:07:22 2012 +0000
committer verwaest@chromium.org <verwaest@chromium.org@ce2b1a6d-e550-0410-aec6-3dcde31c8c00> Wed Oct 10 17:07:22 2012 +0000
tree 942790a97089d2d3c8abec0ffb6f13299eec484c
parent 06ab2ec756e44eeaf7500b9794f9d2abc79dc8cf

Version 3.14.2

ARM: allowed VFP3 instructions when hardfloat is enabled. (Chromium issue 152506)

Fixed instance_descriptors() and PushStackTraceAndDie regressions. (Chromium issue 151749)

Made GDBJIT interface compile again. (issue 1804)

Fixed Accessors::FunctionGetPrototype's proto chain traversal. (Chromium issue 143967)

Made sure that names of temporaries do not clash with real variables. (issue 2322)

Rejected local module declarations. (Chromium issue 150628)

Rejected uses of lexical for-loop variable on the RHS. (issue 2322)

Fixed slot recording of code target patches. (Chromium issue 152615,chromium:144230)

Changed the Android makefile to use GCC 4.6 instead of GCC 4.4.3.

Performance and stability improvements on all platforms.

git-svn-id: http://v8.googlecode.com/svn/trunk@12693 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/ia32/code-stubs-ia32.cc

diff --git a/src/ia32/code-stubs-ia32.cc b/src/ia32/code-stubs-ia32.cc
index 1fdbaf1..142abb5 100644
--- a/src/ia32/code-stubs-ia32.cc
+++ b/src/ia32/code-stubs-ia32.cc
@@ -1793,9 +1793,10 @@
           if (result_type_ <= BinaryOpIC::INT32) {
             __ cvttsd2si(ecx, Operand(xmm0));
             __ cvtsi2sd(xmm2, ecx);
-            __ ucomisd(xmm0, xmm2);
-            __ j(not_zero, &not_int32);
-            __ j(carry, &not_int32);
+            __ pcmpeqd(xmm2, xmm0);
+            __ movmskpd(ecx, xmm2);
+            __ test(ecx, Immediate(1));
+            __ j(zero, &not_int32);
           }
           GenerateHeapResultAllocation(masm, &call_runtime);
           __ movdbl(FieldOperand(eax, HeapNumber::kValueOffset), xmm0);
@@ -3213,7 +3214,7 @@
   __ movsd(double_scratch2, double_result);  // Load double_exponent with 1.
 
   // Get absolute value of exponent.
-  Label no_neg, while_true, no_multiply, while_false;
+  Label no_neg, while_true, while_false;
   __ test(scratch, scratch);
   __ j(positive, &no_neg, Label::kNear);
   __ neg(scratch);
@@ -7205,6 +7206,11 @@
 }
 
 
+bool CodeStub::CanUseFPRegisters() {
+  return CpuFeatures::IsSupported(SSE2);
+}
+
+
 // Takes the input in 3 registers: address_ value_ and object_.  A pointer to
 // the value has just been written into the object, now this stub makes sure
 // we keep the GC informed.  The word in the object where the value has been
@@ -7325,6 +7331,17 @@
     Mode mode) {
   Label object_is_black, need_incremental, need_incremental_pop_object;
 
+  __ mov(regs_.scratch0(), Immediate(~Page::kPageAlignmentMask));
+  __ and_(regs_.scratch0(), regs_.object());
+  __ mov(regs_.scratch1(),
+         Operand(regs_.scratch0(),
+                 MemoryChunk::kWriteBarrierCounterOffset));
+  __ sub(regs_.scratch1(), Immediate(1));
+  __ mov(Operand(regs_.scratch0(),
+                 MemoryChunk::kWriteBarrierCounterOffset),
+         regs_.scratch1());
+  __ j(negative, &need_incremental);
+
   // Let's look at the color of the object:  If it is not black we don't have
   // to inform the incremental marker.
   __ JumpIfBlack(regs_.object(),