[PATCH] D101174: [IRCE] Relieve bound check on isSafeIncreasingBound and isSafeDecreasingBound
Roman Lebedev via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Tue Apr 27 03:36:56 PDT 2021
lebedev.ri added inline comments.
================
Comment at: llvm/test/Transforms/IRCE/variable-loop-bounds.ll:374
+7: ; preds = %6, %3
+ %8 = add nuw nsw i64 %4, -1
+ %9 = icmp eq i64 %8, 0
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This doesn't make sense.
`%8` is `-1` then: https://alive2.llvm.org/ce/z/SeYHXr
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D101174/new/
https://reviews.llvm.org/D101174
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