Changeset 39958 in webkit for trunk/JavaScriptCore/runtime/JSValue.h

Timestamp:

Jan 15, 2009, 7:20:35 PM (16 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/runtime/JSValue.h (modified) (2 diffs)

trunk/JavaScriptCore/runtime/JSValue.h

@@ -34 +34 @@
     class Identifier;
     class JSCell;
-    class JSNumberCell;
     class JSObject;
     class JSString;
@@ -207 +206 @@
         inline const JSValuePtr asValue() const { return *this; }
 
-        bool isNumberCell() const;
-        JSNumberCell* asNumberCell() const;
+        bool isDoubleNumber() const;
+        double getDoubleNumber() const;
 
         JSCell* m_ptr;