[llvm] [IndVars] Preserve flags of narrow IV inc if replacing with wider inc. (PR #80446)

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git-clang-format --diff 275729ae06d568e9589392c142a416fb8c2bb1a8 f0a1a50a31901f11b286cae3bfe5d3a39c7ad098 -- llvm/lib/Transforms/Utils/SimplifyIndVar.cpp
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View the diff from clang-format here.
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``````````diff
diff --git a/llvm/lib/Transforms/Utils/SimplifyIndVar.cpp b/llvm/lib/Transforms/Utils/SimplifyIndVar.cpp
index 9cea161402..27449486a7 100644
--- a/llvm/lib/Transforms/Utils/SimplifyIndVar.cpp
+++ b/llvm/lib/Transforms/Utils/SimplifyIndVar.cpp
@@ -1978,7 +1978,8 @@ PHINode *WidenIV::createWideIV(SCEVExpander &Rewriter) {
       // should not wrap either. Set the flags to be the union of both wide
       // increment and original increment; this ensures we preserve flags SCEV
       // could infer for the wider increment.
-      const SCEV *TruncInc = SE->getTruncateOrNoop(WideIncExpr, OrigInc->getType());
+      const SCEV *TruncInc =
+          SE->getTruncateOrNoop(WideIncExpr, OrigInc->getType());
       if (SE->getSCEV(OrigInc) == TruncInc &&
           isa<OverflowingBinaryOperator>(OrigInc) &&
           isa<OverflowingBinaryOperator>(WideInc)) {

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https://github.com/llvm/llvm-project/pull/80446