commit 31940dfd21fb8319c15f7e6db20e1082e2abab9b
author bfulgham@webkit.org <bfulgham@webkit.org@268f45cc-cd09-0410-ab3c-d52691b4dbfc> Wed Nov 14 19:26:04 2012 +0000
committer bfulgham@webkit.org <bfulgham@webkit.org@268f45cc-cd09-0410-ab3c-d52691b4dbfc> Wed Nov 14 19:26:04 2012 +0000
tree bb7a3b637af91d24a6b28eaabc6d01fd3c3d1c6f
parent 5276c451782a7eda7a287fd08197e046558ebe92

Replace (typeof(x) != <"object", "undefined", ...>) with
!(typeof(x) == <"object",..>). Later is_object, is_<...>  bytecode operation
will be used.

https://bugs.webkit.org/show_bug.cgi?id=98893

Patch by Valery Ignatyev <valery.ignatyev@ispras.ru> on 2012-11-14
Reviewed by Filip Pizlo.

This eliminates expensive  typeof implementation and
allows to use DFG optimizations, which doesn't support 'typeof'.

* bytecompiler/NodesCodegen.cpp:
(JSC::BinaryOpNode::emitBytecode):


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@134634 268f45cc-cd09-0410-ab3c-d52691b4dbfc