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Commit 742ac98d authored by Craig Topper's avatar Craig Topper
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[X86] When lowering truncates to vXi1, don't sign extend i16/i8 types to 512-bit if we have VLX. 

This should only affect what we do for v8i16. Previously we went to v8i64, but if we have VLX we only need v8i32. This prevents an unnecessary zmm usage.

llvm-svn: 321303
parent df898cc5
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