Changeset 39958 in webkit for trunk/JavaScriptCore/wtf/Platform.h

Timestamp:

Jan 15, 2009, 7:20:35 PM (17 years ago)

Author:

[email protected]

Message:

2009-01-15 Gavin Barraclough <​[email protected]>

Reviewed by Geoff Garen.

On x86-64 allow JSImmediate to encode 64-bit double precision values.
This patch only affects builds that set USE(ALTERNATE_JSIMMEDIATE).

Updates the implementation of JSValuePtr

and JSImmediate:: methods that operate on neumeric values to be be aware of the new representation. When this representation is in use, the class JSNumberCell is redundant and is compiled out.

The format of the new immediate representation is documented in JSImmediate.h.

• JavaScriptCore.exp:
• assembler/MacroAssembler.h: (JSC::MacroAssembler::subPtr):
• assembler/X86Assembler.h: (JSC::X86Assembler::): (JSC::X86Assembler::subq_rr): (JSC::X86Assembler::movq_rr): (JSC::X86Assembler::ucomisd_rr): (JSC::X86Assembler::X86InstructionFormatter::twoByteOp64):
• interpreter/Interpreter.cpp: (JSC::Interpreter::cti_op_stricteq): (JSC::Interpreter::cti_op_nstricteq):
• jit/JIT.cpp: (JSC::JIT::compileOpStrictEq): (JSC::JIT::privateCompileMainPass): (JSC::JIT::privateCompileSlowCases):
• jit/JIT.h:
• jit/JITArithmetic.cpp: (JSC::JIT::compileFastArith_op_lshift): (JSC::JIT::compileFastArith_op_rshift): (JSC::JIT::compileFastArith_op_bitand): (JSC::JIT::compileFastArith_op_mod): (JSC::JIT::compileFastArith_op_add): (JSC::JIT::compileFastArith_op_mul): (JSC::JIT::compileFastArith_op_post_inc): (JSC::JIT::compileFastArith_op_post_dec): (JSC::JIT::compileFastArith_op_pre_inc): (JSC::JIT::compileFastArith_op_pre_dec): (JSC::JIT::putDoubleResultToJSNumberCellOrJSImmediate): (JSC::JIT::compileBinaryArithOp):
• jit/JITInlineMethods.h: (JSC::JIT::emitJumpIfBothJSCells): (JSC::JIT::emitJumpIfEitherNumber): (JSC::JIT::emitJumpIfNotEitherNumber): (JSC::JIT::emitJumpIfImmediateIntegerNumber): (JSC::JIT::emitJumpIfNotImmediateIntegerNumber): (JSC::JIT::emitJumpIfNotImmediateIntegerNumbers): (JSC::JIT::emitJumpSlowCaseIfNotImmediateIntegerNumber): (JSC::JIT::emitJumpSlowCaseIfNotImmediateIntegerNumbers): (JSC::JIT::emitFastArithDeTagImmediate): (JSC::JIT::emitFastArithDeTagImmediateJumpIfZero): (JSC::JIT::emitFastArithReTagImmediate): (JSC::JIT::emitFastArithIntToImmNoCheck):
• runtime/JSCell.h:
• runtime/JSGlobalData.cpp: (JSC::JSGlobalData::JSGlobalData):
• runtime/JSImmediate.cpp: (JSC::JSImmediate::toThisObject): (JSC::JSImmediate::toObject): (JSC::JSImmediate::toString):
• runtime/JSImmediate.h: (JSC::wtf_reinterpret_cast): (JSC::JSImmediate::isNumber): (JSC::JSImmediate::isIntegerNumber): (JSC::JSImmediate::isDoubleNumber): (JSC::JSImmediate::isPositiveIntegerNumber): (JSC::JSImmediate::areBothImmediateIntegerNumbers): (JSC::JSImmediate::makeInt): (JSC::JSImmediate::makeDouble): (JSC::JSImmediate::doubleValue): (JSC::doubleToBoolean): (JSC::JSImmediate::toBoolean): (JSC::JSImmediate::getTruncatedUInt32): (JSC::JSImmediate::makeOutOfIntegerRange): (JSC::JSImmediate::from): (JSC::JSImmediate::getTruncatedInt32): (JSC::JSImmediate::toDouble): (JSC::JSImmediate::getUInt32): (JSC::JSValuePtr::isInt32Fast): (JSC::JSValuePtr::isUInt32Fast): (JSC::JSValuePtr::areBothInt32Fast): (JSC::JSFastMath::canDoFastBitwiseOperations): (JSC::JSFastMath::xorImmediateNumbers): (JSC::JSFastMath::canDoFastRshift): (JSC::JSFastMath::canDoFastUrshift): (JSC::JSFastMath::rightShiftImmediateNumbers): (JSC::JSFastMath::canDoFastAdditiveOperations): (JSC::JSFastMath::addImmediateNumbers): (JSC::JSFastMath::subImmediateNumbers):
• runtime/JSNumberCell.cpp: (JSC::jsNumberCell):
• runtime/JSNumberCell.h: (JSC::createNumberStructure): (JSC::isNumberCell): (JSC::asNumberCell): (JSC::jsNumber): (JSC::JSValuePtr::isDoubleNumber): (JSC::JSValuePtr::getDoubleNumber): (JSC::JSValuePtr::isNumber): (JSC::JSValuePtr::uncheckedGetNumber): (JSC::jsNaN): (JSC::JSValuePtr::getNumber): (JSC::JSValuePtr::numberToInt32): (JSC::JSValuePtr::numberToUInt32):
• runtime/JSValue.h:
• runtime/NumberConstructor.cpp: (JSC::numberConstructorNegInfinity): (JSC::numberConstructorPosInfinity): (JSC::numberConstructorMaxValue): (JSC::numberConstructorMinValue):
• runtime/NumberObject.cpp: (JSC::constructNumber):
• runtime/NumberObject.h:
• runtime/Operations.h: (JSC::JSValuePtr::equal): (JSC::JSValuePtr::equalSlowCaseInline): (JSC::JSValuePtr::strictEqual): (JSC::JSValuePtr::strictEqualSlowCaseInline):
• wtf/Platform.h:

File:

• trunk/JavaScriptCore/wtf/Platform.h (modified) (2 diffs)

trunk/JavaScriptCore/wtf/Platform.h

@@ -436 +436 @@
 #endif
 
+#if !defined(WTF_USE_ALTERNATE_JSIMMEDIATE) && PLATFORM(X86_64) && PLATFORM(MAC)
+#define WTF_USE_ALTERNATE_JSIMMEDIATE 1
+#endif
+
 #if !defined(ENABLE_JIT)
 /* x86-64 support is under development. */
@@ -443 +447 @@
     #define ENABLE_JIT_OPTIMIZE_CALL 1
     #define ENABLE_JIT_OPTIMIZE_PROPERTY_ACCESS 1
-    #define WTF_USE_ALTERNATE_JSIMMEDIATE 1
 /* The JIT is tested & working on x86 Mac */
 #elif PLATFORM(X86) && PLATFORM(MAC)