Changeset 44526 in webkit for trunk/JavaScriptCore/wtf

Timestamp:

Jun 9, 2009, 1:14:09 AM (16 years ago)

Author:

[email protected]

Message:

2009-06-09 Gavin Barraclough <​[email protected]>

Reviewed by Geoff Garen.

Enable JIT_OPTIMIZE_ARITHMETIC on ARMv7 platforms.

Temporarily split support for 'branchTruncateDoubleToInt32' onto its own switch
('supportsFloatingPointTruncate'). See comment in MacroAssemblerARMv7, we need
to work out wherther we are going to be able to support the current interface on
all platforms, or whether this should be refactored.

• assembler/MacroAssemblerARMv7.h: (JSC::MacroAssemblerARMv7::supportsFloatingPoint):

Add implementation of supportsFloatingPointTruncate (returns true).

(JSC::MacroAssemblerARMv7::supportsFloatingPointTruncate):

Add implementation of supportsFloatingPointTruncate (returns false).

(JSC::MacroAssemblerARMv7::loadDouble):
(JSC::MacroAssemblerARMv7::storeDouble):
(JSC::MacroAssemblerARMv7::addDouble):
(JSC::MacroAssemblerARMv7::subDouble):
(JSC::MacroAssemblerARMv7::mulDouble):
(JSC::MacroAssemblerARMv7::convertInt32ToDouble):
(JSC::MacroAssemblerARMv7::branchDouble):

Implement FP code genertion operations.

• assembler/MacroAssemblerX86.h: (JSC::MacroAssemblerX86::supportsFloatingPointTruncate):

Add implementation of supportsFloatingPointTruncate (returns true).

• assembler/MacroAssemblerX86_64.h: (JSC::MacroAssemblerX86_64::supportsFloatingPointTruncate):

Add implementation of supportsFloatingPointTruncate (returns true).

• jit/JITArithmetic.cpp: (JSC::JIT::emit_op_rshift):

Changed to call supportsFloatingPointTruncate().

(JSC::JIT::emitSlow_op_rshift):

Changed to call supportsFloatingPointTruncate().

• wtf/Platform.h:

Change to enable JIT_OPTIMIZE_ARITHMETIC.

File:

• trunk/JavaScriptCore/wtf/Platform.h (modified) (1 diff)

trunk/JavaScriptCore/wtf/Platform.h

@@ -525 +525 @@
     #define ENABLE_JIT_OPTIMIZE_CALL 0
     #define ENABLE_JIT_OPTIMIZE_NATIVE_CALL 0
-    #define ENABLE_JIT_OPTIMIZE_ARITHMETIC 0
     #define ENABLE_JIT_OPTIMIZE_METHOD_CALLS 0
 /* The JIT is tested & working on x86 Windows */