[llvm] [SCEV] Move NoWrapFlags definition outside SCEV scope, use for SCEVUse. (PR #190199)

[Nikita Popov via llvm-commits]

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@@ -1046,6 +1046,20 @@ class SCEVLoopAddRecRewriter
   LoopToScevMapT ⤅
 };
 
+template <typename SCEVPtrT>
+inline SCEVWrap::NoWrapFlags
+SCEVUseT<SCEVPtrT>::getNoWrapFlags(SCEVWrap::NoWrapFlags Mask) const {
+  unsigned Flags = SCEV::FlagAnyWrap;
+  if (auto *NAry = dyn_cast<SCEVNAryExpr>(Base::getPointer()))
+    Flags = NAry->getNoWrapFlags();
+  // Use-flags only encode NUW/NSW in 2 bits; shift to align with NoWrapFlags.
+  unsigned UseFlags = Base::getInt() << 1;
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nikic wrote:

Reuse getUseNoWrapFlags() here?

https://github.com/llvm/llvm-project/pull/190199