Bug 126652

Summary: Make it possible to disable the disabling of AVX
Product: WebKit Reporter: Filip Pizlo <fpizlo>
Component: JavaScriptCoreAssignee: Filip Pizlo <fpizlo>
Severity: Normal CC: barraclough, ggaren, mark.lam, mhahnenberg, msaboff, oliver, sam
Priority: P2    
Version: 528+ (Nightly build)   
Hardware: All   
OS: All   
Bug Depends on:    
Bug Blocks: 112840    
Description Flags
the patch ggaren: review+

Description Filip Pizlo 2014-01-08 11:56:11 PST
Yes, disable the disabling.  Why?  Because LLVM's default is to use AVX if it's available, and WebKit can merely just ask LLVM to always avoid AVX even if it's available.  Hence WebKit can disable AVX, and we can disable the disabling of AVX to allow LLVM do just do its default.
Comment 1 Filip Pizlo 2014-01-08 11:57:40 PST
Created attachment 220648 [details]
the patch
Comment 2 Filip Pizlo 2014-01-08 11:59:02 PST
Landed on branch in http://trac.webkit.org/changeset/161515
Comment 3 Geoffrey Garen 2014-01-08 12:43:32 PST
Comment on attachment 220648 [details]
the patch