Title: [86968] trunk/Source/_javascript_Core
- Revision
- 86968
- Author
- [email protected]
- Date
- 2011-05-20 11:20:07 -0700 (Fri, 20 May 2011)
Log Message
2011-05-20 Oliver Hunt <[email protected]>
Reviewed by Sam Weinig.
Remove unnecessary double->int conversion at the end of op_div
https://bugs.webkit.org/show_bug.cgi?id=61198
We don't attempt this conversion on 64bit, removing it actually speeds
up sunspider and v8 slightly, and it reduces code size.
* jit/JITArithmetic32_64.cpp:
(JSC::JIT::emit_op_div):
Modified Paths
Diff
Modified: trunk/Source/_javascript_Core/ChangeLog (86967 => 86968)
--- trunk/Source/_javascript_Core/ChangeLog 2011-05-20 18:18:37 UTC (rev 86967)
+++ trunk/Source/_javascript_Core/ChangeLog 2011-05-20 18:20:07 UTC (rev 86968)
@@ -1,3 +1,16 @@
+2011-05-20 Oliver Hunt <[email protected]>
+
+ Reviewed by Sam Weinig.
+
+ Remove unnecessary double->int conversion at the end of op_div
+ https://bugs.webkit.org/show_bug.cgi?id=61198
+
+ We don't attempt this conversion on 64bit, removing it actually speeds
+ up sunspider and v8 slightly, and it reduces code size.
+
+ * jit/JITArithmetic32_64.cpp:
+ (JSC::JIT::emit_op_div):
+
2011-05-19 Evan Martin <[email protected]>
Reviewed by Tony Chang.
Modified: trunk/Source/_javascript_Core/jit/JITArithmetic32_64.cpp (86967 => 86968)
--- trunk/Source/_javascript_Core/jit/JITArithmetic32_64.cpp 2011-05-20 18:18:37 UTC (rev 86967)
+++ trunk/Source/_javascript_Core/jit/JITArithmetic32_64.cpp 2011-05-20 18:20:07 UTC (rev 86968)
@@ -1246,16 +1246,6 @@
convertInt32ToDouble(regT0, fpRegT0);
convertInt32ToDouble(regT2, fpRegT1);
divDouble(fpRegT1, fpRegT0);
-
- JumpList doubleResult;
- branchConvertDoubleToInt32(fpRegT0, regT0, doubleResult, fpRegT1);
-
- // Int32 result.
- emitStoreInt32(dst, regT0, (op1 == dst || op2 == dst));
- end.append(jump());
-
- // Double result.
- doubleResult.link(this);
emitStoreDouble(dst, fpRegT0);
end.append(jump());
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