[llvm] [ScalarEvolution] Avoid recursive proof blowup for recurrence starts (PR #225000)
via llvm-commits
llvm-commits at lists.llvm.org
Mon Sep 21 00:13:28 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 0067f0fe2..b0a4de387 100644
--- a/llvm/lib/Analysis/ScalarEvolution.cpp
+++ b/llvm/lib/Analysis/ScalarEvolution.cpp
@@ -13197,7 +13197,8 @@ bool ScalarEvolution::isKnownViaNonRecursiveReasoning(CmpPredicate Pred,
isKnownPredicateViaConstantRanges(Pred, LHS, RHS) ||
IsKnownPredicateViaMinOrMax(*this, Pred, LHS, RHS) ||
IsKnownPredicateViaAddRecStart(
- Pred, LHS, RHS, [&](const SCEV *LStart, const SCEV *RStart) {
+ Pred, LHS, RHS,
+ [&](const SCEV *LStart, const SCEV *RStart) {
// Reentering the full predicate prover here can recursively
// branch into induction proofs for a chain of recurrences.
return isKnownViaNonRecursiveReasoning(Pred, LStart, RStart);
``````````
</details>
https://github.com/llvm/llvm-project/pull/225000
More information about the llvm-commits
mailing list