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Commit 4b1808d8 authored by Craig Topper's avatar Craig Topper
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[SelectionDAG] Teach LegalizeVectorOps to not unroll CTLZ_ZERO_UNDEF and... 

[SelectionDAG] Teach LegalizeVectorOps to not unroll CTLZ_ZERO_UNDEF and CTTZ_ZERO_UNDEF if the non-ZERO_UNDEF form is legal or custom. Will be used to simplify X86 code in a follow on commit.

llvm-svn: 256476
parent c48fa89e
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