[JSC] Optimize Number.prototype.toString on Int32 / Int52 / Double
authorutatane.tea@gmail.com <utatane.tea@gmail.com@268f45cc-cd09-0410-ab3c-d52691b4dbfc>
Tue, 21 Mar 2017 11:31:43 +0000 (11:31 +0000)
committerutatane.tea@gmail.com <utatane.tea@gmail.com@268f45cc-cd09-0410-ab3c-d52691b4dbfc>
Tue, 21 Mar 2017 11:31:43 +0000 (11:31 +0000)
commit586d9d12a97008265b237bbead1ae049e2d2a45b
treed22000d5a3c9d246c1008ed4c70a0209ee2a31ff
parentb70737ae30310f5ac8fb7d6b91e53e7d670d8dc2
[JSC] Optimize Number.prototype.toString on Int32 / Int52 / Double
https://bugs.webkit.org/show_bug.cgi?id=167454

Reviewed by Saam Barati.

JSTests:

* stress/number-to-string-abstract-operation.js: Added.
(shouldBe):
(int32ToString):
(shouldBe.int32ToString.new.Number.int52ToString):
(shouldBe.int32ToString.new.Number):
(shouldBe.doubleToString):
* stress/number-to-string-radix.js: Added.
(shouldBe):
(int32ToString):
(shouldBe.int32ToString.new.Number.int52ToString):
(shouldBe.int32ToString.new.Number):
(shouldBe.doubleToString):
* stress/number-to-string.js: Added.
(shouldBe):
(int32ToString):
(shouldBe.int32ToString.new.Number.int52ToString):
(shouldBe.int32ToString.new.Number):
(shouldBe.doubleToString):

Source/JavaScriptCore:

This patch improves Number.toString(radix) performance
by introducing NumberToStringWithRadix DFG node. It directly
calls the operation and it always returns String.

                                               baseline                  patched

    stanford-crypto-sha256-iterative        45.130+-0.928             44.032+-1.184           might be 1.0250x faster

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@214219 268f45cc-cd09-0410-ab3c-d52691b4dbfc
28 files changed:
JSTests/ChangeLog
JSTests/stress/number-to-string-abstract-operation.js [new file with mode: 0644]
JSTests/stress/number-to-string-radix.js [new file with mode: 0644]
JSTests/stress/number-to-string.js [new file with mode: 0644]
Source/JavaScriptCore/ChangeLog
Source/JavaScriptCore/dfg/DFGAbstractInterpreterInlines.h
Source/JavaScriptCore/dfg/DFGByteCodeParser.cpp
Source/JavaScriptCore/dfg/DFGClobberize.h
Source/JavaScriptCore/dfg/DFGDoesGC.cpp
Source/JavaScriptCore/dfg/DFGFixupPhase.cpp
Source/JavaScriptCore/dfg/DFGNodeType.h
Source/JavaScriptCore/dfg/DFGOperations.cpp
Source/JavaScriptCore/dfg/DFGOperations.h
Source/JavaScriptCore/dfg/DFGPredictionPropagationPhase.cpp
Source/JavaScriptCore/dfg/DFGSafeToExecute.h
Source/JavaScriptCore/dfg/DFGSpeculativeJIT.cpp
Source/JavaScriptCore/dfg/DFGSpeculativeJIT.h
Source/JavaScriptCore/dfg/DFGSpeculativeJIT32_64.cpp
Source/JavaScriptCore/dfg/DFGSpeculativeJIT64.cpp
Source/JavaScriptCore/dfg/DFGStrengthReductionPhase.cpp
Source/JavaScriptCore/ftl/FTLCapabilities.cpp
Source/JavaScriptCore/ftl/FTLLowerDFGToB3.cpp
Source/JavaScriptCore/jit/CCallHelpers.h
Source/JavaScriptCore/jit/JITOperations.h
Source/JavaScriptCore/runtime/Intrinsic.h
Source/JavaScriptCore/runtime/NumberPrototype.cpp
Source/JavaScriptCore/runtime/NumberPrototype.h
Source/JavaScriptCore/runtime/StringPrototype.cpp