[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
