[llvm] [FunctionAttrs] Don't bail out on unknown calls (PR #150958)

[Eli Friedman via llvm-commits]

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@@ -2087,11 +2086,13 @@ static void addNoRecurseAttrs(const SCCNodeSet &SCCNodes,
   for (auto &BB : *F)
     for (auto &I : BB.instructionsWithoutDebug())
       if (auto *CB = dyn_cast<CallBase>(&I)) {
+        if (CB->hasFnAttr(Attribute::NoRecurse))
+          continue;
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efriedma-quic wrote:

Oh, didn't realize there was already an active discussion.  If the current norecurse inference is self-consistent, that fine for now.

https://github.com/llvm/llvm-project/pull/150958