[PATCH] D110170: [InstCombine] fold cast of right-shift if high bits are not demanded
Martin Storsjö via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Wed Sep 22 00:15:27 PDT 2021
mstorsjo added a comment.
I also run into infinite loops caused by this commit. It's reproducible with https://martin.st/temp/qsettings-preproc.cpp with `clang -target x86_64-w64-mingw32 -c qsettings-preproc.cpp -O3 -std=c++17`. But that's not minimzed/reduced at all (and that source file takes a pretty significant amount of time to compile even to begin with).
Repository:
rG LLVM Github Monorepo
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https://reviews.llvm.org/D110170/new/
https://reviews.llvm.org/D110170
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