[PATCH] D147243: [X86] MatchVectorAllZeroTest - add support for icmp(bitcast(icmp_ne(X,Y)),0) vector reduction patterns

[Alexander Kornienko via Phabricator via llvm-commits]

alexfh added a comment.

After this commit we started seeing clang crashes with "Do not know how to split this operator's operand" (likely coming from `DAGTypeLegalizer::SplitVectorOperand`, 
 llvm/lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp:2831). I'm trying to get a reduced test case. This can take non-trivial time, since we're seeing this in a ThinLTO build.


Repository:
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  https://reviews.llvm.org/D147243/new/

https://reviews.llvm.org/D147243