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Commit b560fd6c authored by Craig Topper's avatar Craig Topper
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[X86] Improve the AVX512 bailout in combineTruncateWithSat to allow pack... 

[X86] Improve the AVX512 bailout in combineTruncateWithSat to allow pack instructions in more situations.

If we don't have VLX we won't end up selecting a saturating
truncate for 256-bit or smaller vectors so we should just use
the pack lowering.

llvm-svn: 374487
parent 4dc27c69
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