[PATCH] D156845: [ConstantRange] Calculate precise range for shl by -1
Noah Goldstein via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Thu Aug 10 08:36:59 PDT 2023
goldstein.w.n added inline comments.
================
Comment at: llvm/lib/IR/ConstantRange.cpp:1484
+ Neg = true;
+ }
+
----------------
`bool Neg = getSingleElement && isAllNegative();`
================
Comment at: llvm/lib/IR/ConstantRange.cpp:1499
+ std::swap(Min, Max);
+ }
return ConstantRange::getNonEmpty(std::move(Min), std::move(Max) + 1);
----------------
(style)
```
// Comment
if (Neg)
std::swap(...)
```
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D156845/new/
https://reviews.llvm.org/D156845
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