[PATCH] D149383: [SelectionDAG][WIP] Add support for evaluating SetCC based on knownbits
Noah Goldstein via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Sat Apr 29 14:42:09 PDT 2023
goldstein.w.n added inline comments.
================
Comment at: llvm/test/CodeGen/X86/fold-rmw-ops.ll:1372
store i64 %or, ptr @g64
%cond = icmp eq i64 %or, 0
br i1 %cond, label %a, label %b
----------------
RKSimon wrote:
> comparing against zero in all these or-with-imm tests just seems to be a copy+paste from the other logic ops in this file - maybe change it to something that isn't constant foldable (test for -ve?)
re: 'test for -ve?' hmm?
But would generally prefer to add new tests than modify existing.
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D149383/new/
https://reviews.llvm.org/D149383
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