[llvm] [ScalarEvolution] howManyLessThans infer stride isPositive from guard (PR #214014)

via llvm-commits llvm-commits at lists.llvm.org
Mon Sep 14 12:52:19 PDT 2026


github-actions[bot] wrote:

<!--LLVM CODE FORMAT COMMENT: {clang-format}-->


:warning: C/C++ code formatter, clang-format found issues in your code. :warning:

<details>
<summary>
You can test this locally with the following command:
</summary>

``````````bash
git-clang-format --diff origin/main HEAD --extensions cpp -- llvm/lib/Analysis/ScalarEvolution.cpp --diff_from_common_commit
``````````

:warning:
The reproduction instructions above might return results for more than one PR
in a stack if you are using a stacked PR workflow. You can limit the results by
changing `origin/main` to the base branch/commit you want to compare against.
:warning:

</details>

<details>
<summary>
View the diff from clang-format here.
</summary>

``````````diff
diff --git a/llvm/lib/Analysis/ScalarEvolution.cpp b/llvm/lib/Analysis/ScalarEvolution.cpp
index beee7137e..a57c489b5 100644
--- a/llvm/lib/Analysis/ScalarEvolution.cpp
+++ b/llvm/lib/Analysis/ScalarEvolution.cpp
@@ -13439,7 +13439,7 @@ ScalarEvolution::howManyLessThans(const SCEV *LHS, const SCEV *RHS,
   bool PositiveStride = isKnownPositive(Stride);
   // A dominating guard may prove the stride positive.
   if (!PositiveStride) {
-    const SCEV* LoopGuardedStride = applyLoopGuards(Stride, L);
+    const SCEV *LoopGuardedStride = applyLoopGuards(Stride, L);
     if (isKnownPositive(LoopGuardedStride)) {
       GuardedStride = LoopGuardedStride;
       PositiveStride = true;

``````````

</details>


https://github.com/llvm/llvm-project/pull/214014


More information about the llvm-commits mailing list