[PATCH] D27919: [Loop Vectorizer] Interleave vs Gather - in some cases Gather is better.

Elena Demikhovsky via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Wed Jan 18 02:40:22 PST 2017

delena updated this revision to Diff 84811.
delena added a comment.

I'm revisiting the set of Scalars and Uniforms after cost modeling. Taking into account that the cost model uses Uniforms and the Uniforms are changed after the cost modeling, I still think that there is no circular dependency here. 
(1) I remove uniform GEP (and the corresponding induction) when we decide to scalarize memory instruction.
(2) I do not remove GEP from scalars if it will not be used in Gather/Scatter.

I added a test that Matthew sent me.




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