FixupPhase should be more eager to demote bit math to untyped
https://bugs.webkit.org/show_bug.cgi?id=157746
Reviewed by Mark Lam.
Source/JavaScriptCore:
This just makes the logic for how we fixup bit math match the way we do it in other places.
This doesn't affect performance on any major benchmark but it's a big win on new
microbenchmarks added in this change.
Details:
object-and 11.1610+-0.7602 ^ 4.8105+-0.1690 ^ definitely 2.3201x faster
object-or 11.0845+-0.2487 ^ 4.7146+-0.0374 ^ definitely 2.3511x faster
object-xor 10.2946+-0.9946 ^ 4.7278+-0.0814 ^ definitely 2.1775x faster
object-lshift 10.4896+-1.0867 ^ 4.7699+-0.0721 ^ definitely 2.1991x faster
object-rshift 11.1239+-0.5010 ^ 4.7194+-0.0445 ^ definitely 2.3570x faster
object-urshift 10.9745+-0.1315 ^ 4.7848+-0.0479 ^ definitely 2.2936x faster
* dfg/DFGFixupPhase.cpp:
(JSC::DFG::FixupPhase::fixupNode):
LayoutTests:
* js/regress/object-and-expected.txt: Added.
* js/regress/object-and.html: Added.
* js/regress/object-int-and-array-expected.txt: Added.
* js/regress/object-int-and-array.html: Added.
* js/regress/object-lshift-expected.txt: Added.
* js/regress/object-lshift.html: Added.
* js/regress/object-or-expected.txt: Added.
* js/regress/object-or.html: Added.
* js/regress/object-rshift-expected.txt: Added.
* js/regress/object-rshift.html: Added.
* js/regress/object-urshift-expected.txt: Added.
* js/regress/object-urshift.html: Added.
* js/regress/object-xor-expected.txt: Added.
* js/regress/object-xor.html: Added.
* js/regress/script-tests/object-and.js: Added.
(o.valueOf):
* js/regress/script-tests/object-int-and-array.js: Added.
(i.o.valueOf):
* js/regress/script-tests/object-lshift.js: Added.
(o.valueOf):
* js/regress/script-tests/object-or.js: Added.
(o.valueOf):
* js/regress/script-tests/object-rshift.js: Added.
(o.valueOf):
* js/regress/script-tests/object-urshift.js: Added.
(o.valueOf):
* js/regress/script-tests/object-xor.js: Added.
(o.valueOf):
git-svn-id: http://svn.webkit.org/repository/webkit/trunk@200958 268f45cc-cd09-0410-ab3c-d52691b4dbfc
24 files changed
