Fix 32bit build

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@149150 268f45cc-cd09-0410-ab3c-d52691b4dbfc
Ignore invalid regular expressions for input[pattern].
https://bugs.webkit.org/show_bug.cgi?id=115204

Reviewed by Darin Adler.

Source/WebCore:

According to the specification, we should not proceed regular expression
matching if a pattern attribute value is an invalid regular
expression. We had a bug that invalid expressions such as
pattern=")foo(" made RegularExpression objects successfully.

http://www.whatwg.org/specs/web-apps/current-work/multipage/common-input-element-attributes.html#the-pattern-attribute
> If an input element has a pattern attribute specified, and the
> attribute's value, when compiled as a JavaScript regular expression with
> the global, ignoreCase, and multiline flags disabled (see ECMA262
> Edition 5, sections 15.10.7.2 through 15.10.7.4), compiles successfully,
> then the resulting regular expression is the element's compiled pattern
> regular expression. If the element has no such attribute, or if the
> value doesn't compile successfully, then the element has no compiled
> pattern regular expression.

This imports a part of Blink r148951.

Tests: Update fast/forms/ValidityState-patternMismatch.html

* html/BaseTextInputType.cpp:
(WebCore::BaseTextInputType::patternMismatch):
Check correctness of pattern attribute value before wrapping with parentheses.
* platform/text/RegularExpression.cpp:
(WebCore::RegularExpression::isValid): Added.
* platform/text/RegularExpression.h:
(RegularExpression): Declare isValid.

LayoutTests:

* fast/forms/ValidityState-patternMismatch-expected.txt:
* fast/forms/ValidityState-patternMismatch.html:


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@149151 268f45cc-cd09-0410-ab3c-d52691b4dbfc
Source/JavaScriptCore: Fix problems with processing negative zero on DFG.
https://bugs.webkit.org/show_bug.cgi?id=113862

Patch by Roman Zhuykov <zhroma@ispras.ru> on 2013-04-25
Reviewed by Filip Pizlo.

Fix NodeNeedsNegZero flag propagation in BackwardPropagationPhase.
Function arithNodeFlags should not mask NodeNeedsNegZero flag for ArithNegate and DoubleAsInt32
nodes and this flag should be always used to decide where we need to generate nezative-zero checks.
Remove unnecessary negative-zero checks from integer ArithDiv on ARM.
Also remove such checks from integer ArithMod on ARM and X86, and make them always to
check not only "modulo_result == 0" but also "dividend < 0".
Generate faster code for case when ArithMod operation divisor is constant power of 2 on ARMv7
in the same way as on ARMv7s, and add negative-zero checks into this code when needed.
Change speculationCheck ExitKind from Overflow to NegativeZero where applicable.

This shows 30% speedup of math-spectral-norm, and 5% speedup
on SunSpider overall on ARMv7 Linux.

* assembler/MacroAssemblerARM.h:
(JSC::MacroAssemblerARM::branchConvertDoubleToInt32):
* assembler/MacroAssemblerARMv7.h:
(JSC::MacroAssemblerARMv7::branchConvertDoubleToInt32):
* assembler/MacroAssemblerMIPS.h:
(JSC::MacroAssemblerMIPS::branchConvertDoubleToInt32):
* assembler/MacroAssemblerSH4.h:
(JSC::MacroAssemblerSH4::branchConvertDoubleToInt32):
* assembler/MacroAssemblerX86Common.h:
(JSC::MacroAssemblerX86Common::branchConvertDoubleToInt32):
* dfg/DFGBackwardsPropagationPhase.cpp:
(JSC::DFG::BackwardsPropagationPhase::isNotNegZero):
(JSC::DFG::BackwardsPropagationPhase::isNotPosZero):
(JSC::DFG::BackwardsPropagationPhase::propagate):
* dfg/DFGNode.h:
(JSC::DFG::Node::arithNodeFlags):
* dfg/DFGSpeculativeJIT.cpp:
(JSC::DFG::SpeculativeJIT::compileDoubleAsInt32):
(JSC::DFG::SpeculativeJIT::compileSoftModulo):
(JSC::DFG::SpeculativeJIT::compileArithNegate):

LayoutTests: Arithmetic operations with negative zero should be optimized correclty.
https://bugs.webkit.org/show_bug.cgi?id=113862

Patch by Roman Zhuykov <zhroma@ispras.ru> on 2013-04-25
Reviewed by Filip Pizlo.
* fast/js/regress/negative-zero-divide-expected.txt: Added.
* fast/js/regress/negative-zero-divide.html: Added.
* fast/js/regress/negative-zero-modulo-expected.txt: Added.
* fast/js/regress/negative-zero-modulo.html: Added.
* fast/js/regress/negative-zero-negate-expected.txt: Added.
* fast/js/regress/negative-zero-negate.html: Added.
* fast/js/regress/script-tests/negative-zero-divide.js: Added.
(foo):
* fast/js/regress/script-tests/negative-zero-modulo.js: Added.
(foo):
* fast/js/regress/script-tests/negative-zero-negate.js: Added.
(foo):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@149152 268f45cc-cd09-0410-ab3c-d52691b4dbfc