[llvm] DAG: Assert fcmp uno runtime calls are boolean values (PR #142898)

[Eli Friedman via llvm-commits]

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@@ -429,8 +429,20 @@ void TargetLowering::softenSetCCOperands(SelectionDAG &DAG, EVT VT,
     // Update Chain.
     Chain = Call.second;
   } else {
+    assert(CCCode == (ShouldInvertCC ? ISD::SETEQ : ISD::SETNE) &&
+           "unordered call should be simple boolean");
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efriedma-quic wrote:

You're adding an assertion that CCCode should be SETEQ or SETNE... then you're changing the condition code for RTLIB::UO_F32 to SETCC_INVALID, which then goes through here?  I must be missing something...

https://github.com/llvm/llvm-project/pull/142898