[PATCH] D29956: [LV] Remove constant-step restriction for vector phi creation

[Matthew Simpson via Phabricator via llvm-commits]

mssimpso added inline comments.


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Comment at: test/Transforms/LoopVectorize/induction-step.ll:201
+  ret void
+}
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mssimpso wrote:
> mkuper wrote:
> > Do we have a negative test-case showing we don't try anything stupid for loop-variant values?
> I'll add one.
Actually, we don't handle inductions with loop-variant steps at all (InductionDescriptor::isInductionPHI). So I'll probably change the patch to assert instead of checking for loop-invariance.


https://reviews.llvm.org/D29956