[llvm] [ScalarEvolutionExpander] Don't drop nowrap flags on addrec expansion (PR #78199)

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git-clang-format --diff 2e08e821b7ea5bf7c0fe0775feb94a7fdb5204c7 1286729a394bac679f9aa57544ce3f920422a30b -- llvm/lib/Transforms/Utils/ScalarEvolutionExpander.cpp
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View the diff from clang-format here.
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``````````diff
diff --git a/llvm/lib/Transforms/Utils/ScalarEvolutionExpander.cpp b/llvm/lib/Transforms/Utils/ScalarEvolutionExpander.cpp
index e87b430d6b..17a43c80c3 100644
--- a/llvm/lib/Transforms/Utils/ScalarEvolutionExpander.cpp
+++ b/llvm/lib/Transforms/Utils/ScalarEvolutionExpander.cpp
@@ -1250,12 +1250,11 @@ Value *SCEVExpander::visitAddRecExpr(const SCEVAddRecExpr *S) {
 
   // If this is a simple linear addrec, emit it now as a special case.
   if (S->isAffine())    // {0,+,F} --> i*F
-    return
-      expand(SE.getTruncateOrNoop(
-        SE.getMulExpr(SE.getUnknown(CanonicalIV),
-                      SE.getNoopOrAnyExtend(S->getOperand(1),
-                                            CanonicalIV->getType()),
-                                        S->getNoWrapFlags(SCEV::FlagNW)),
+    return expand(SE.getTruncateOrNoop(
+        SE.getMulExpr(
+            SE.getUnknown(CanonicalIV),
+            SE.getNoopOrAnyExtend(S->getOperand(1), CanonicalIV->getType()),
+            S->getNoWrapFlags(SCEV::FlagNW)),
         Ty));
 
   // If this is a chain of recurrences, turn it into a closed form, using the

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https://github.com/llvm/llvm-project/pull/78199