[llvm] [Attributor] Propagate alignment through ptrmask (PR #150158)

[via llvm-commits]

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@@ -5202,6 +5252,8 @@ static unsigned getKnownAlignForUse(Attributor &A, AAAlign &QueryingAA,
       TrackUse = true;
     return 0;
   }
+  if (const IntrinsicInst *II = dyn_cast<IntrinsicInst>(I))
+    return getKnownAlignForIntrinsic(A, QueryingAA, *II).value();
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Shoreshen wrote:

Hi @shiltian , as Matthew mentioned in https://github.com/llvm/llvm-project/pull/150158#discussion_r2247435706, it cannot be tell if the intrinsic is handled since the intrinsic it self may also return alignment of 1.

What I can do is continuing the code if the returned align is 1..... but it could be a valid return....

https://github.com/llvm/llvm-project/pull/150158