[PATCH] D149197: [X86] Add tests for `div/rem %x, (select c, <const>, 1)`; NFC
Phoebe Wang via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Tue Apr 25 20:21:09 PDT 2023
pengfei added inline comments.
================
Comment at: llvm/test/CodeGen/X86/divrem-by-select.ll:140
+; CHECK-X64-V4-NEXT: retq
+ %non_zero = add nsw nuw <2 x i64> %y, <i64 1, i64 1>
+ %d = select <2 x i1> %c, <2 x i64> %non_zero, <2 x i64> <i64 1, i64 1>
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Why non_zero matters here? Dividen by 0 is posion, we don't need to cary its result.
Repository:
rG LLVM Github Monorepo
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https://reviews.llvm.org/D149197/new/
https://reviews.llvm.org/D149197
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