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Commit 731ea7db authored by Craig Topper's avatar Craig Topper
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[X86] Turn X86ISD::VSEXT into X86ISD::VZEXT if the upper bits aren't demanded. 

This makes X86ISD::VSEXT more similar to ISD::SIGN_EXTEND and ISD::ZERO_EXTEND.

I'm hoping to replace X86ISD::VSEXT/VZEXT with target independent nodes. Making the target specific nodes similar to the target independent nodes helps minimize test diffs in that patch.

llvm-svn: 346539
parent fc8f1d7d
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