[llvm-bugs] [Bug 43802] [LVI] Miscompile by CorrelatedValuePropagation: LVI doesn't take nsw into account
via llvm-bugs
llvm-bugs at lists.llvm.org
Mon Oct 28 06:18:02 PDT 2019
https://bugs.llvm.org/show_bug.cgi?id=43802
Sanjay Patel <spatel+llvm at rotateright.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |FIXED
Status|CONFIRMED |RESOLVED
--- Comment #4 from Sanjay Patel <spatel+llvm at rotateright.com> ---
Should be minimally fixed with:
https://reviews.llvm.org/rGf2e93d10fe0c
As noted in https://reviews.llvm.org/D69442 - the patch appears to be
sufficient given current LVI behavior. If that analysis changes, we might need
a different/stronger fix. We can also try to restore the wrapping flags with
further analysis.
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