[clang] [llvm] [polly] [DebugInfo] Remove dead debug intrinsic handling (NFC) (PR #231379)

[Alexis Engelke via cfe-commits]

================
@@ -5556,10 +5556,7 @@ static FixedVectorType *tryCanonicalizeStructToVector(StructType *STy,
       return true;
 
     User *Usr = U->getUser();
-    if (isa<LifetimeIntrinsic>(Usr) || isa<DbgInfoIntrinsic>(Usr))
-      return true;
-
-    return isa<MemIntrinsic>(Usr);
+    return isa<LifetimeIntrinsic, MemIntrinsic>(Usr);
----------------
aengelke wrote:

`return !U || isa<LifetimeIntrinsic, MemIntrinsic>(U->getUser());`

https://github.com/llvm/llvm-project/pull/231379