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[AArch64][GlobalISel] Make vector dup optimization look at last elt of ZeroVec
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Authored by paquette on Jul 23 2019, 2:34 PM.

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Summary

Fix an off-by-one error which made us not look at the last element of the zero vector. This caused a miscompile on 188.ammp.

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Repository
rL LLVM

Event Timeline

paquette created this revision.Jul 23 2019, 2:34 PM
aemerson accepted this revision.Jul 23 2019, 2:37 PM

LGTM.

This revision is now accepted and ready to land.Jul 23 2019, 2:37 PM
This revision was automatically updated to reflect the committed changes.