[PATCH] D23509: [LoopVectorize] Query TTI when deciding to splat IV

Sam Parker via llvm-commits llvm-commits at lists.llvm.org
Mon Aug 22 05:52:11 PDT 2016


samparker added a comment.

Hi Michael,

The splatting of the indvar seems to be problematic for ARM because a VDUP instruction gets generated, which has a long latency,


https://reviews.llvm.org/D23509





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