search for: pr20600

Displaying 1 result from an estimated 1 matches for "pr20600".

2014 Nov 28
5
[LLVMdev] [RFC] Removing BBVectorize?
...izer that we do use in production, had have for some time. - BBVectorize otherwise needs refactoring, and the implementation has lots of cutoffs (because the underlying algorithm is asymptotically expensive). - It has bugs (the way it tracks anti-dependencies from calls, for example, is broken: PR20600). In short, while BBVectorize was useful when it was added, it is unclear to me whether or not its continuing presence outweighs the ongoing maintenance costs and resulting user confusion (I still occasionally see users turning it on when they likely would be happier with the SLP vectorizer instea...