[X86] combineBitcastvxi1 - peek through bitcast(concat(X,undef)) -> aext(bitcast(X))
authorSimon Pilgrim <llvm-dev@redking.me.uk>
Tue, 4 Apr 2023 13:24:52 +0000 (14:24 +0100)
committerSimon Pilgrim <llvm-dev@redking.me.uk>
Tue, 4 Apr 2023 13:24:59 +0000 (14:24 +0100)
commiteb435b7ff569b35ae603886b881f51ac8600bd60
treebccf803f5ef0f7ad2a31f98b57eedb50f60aff11
parentc7161e73ca0afdf9cc016ce4e9f1e23a6a140b51
[X86] combineBitcastvxi1 - peek through bitcast(concat(X,undef)) -> aext(bitcast(X))

Fixes #61683
llvm/lib/Target/X86/X86ISelLowering.cpp
llvm/test/CodeGen/X86/bitcast-and-setcc-256.ll