[llvm] DAG: Handle lowering unordered compare with inf (PR #100378)

[Matt Arsenault via llvm-commits]

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@@ -219,9 +219,13 @@ findSplitPointForStackProtector(MachineBasicBlock *BB,
 /// (i.e. fewer instructions should be required to lower it).  An example is the
 /// test "inf|normal|subnormal|zero", which is an inversion of "nan".
 /// \param Test The test as specified in 'is_fpclass' intrinsic invocation.
+///
+/// \param UseFP The intention is to perform the comparison using floating-point
+/// compare instructions which check for nan.
+///
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arsenm wrote:

I think they usually separate separate param lines? 

https://github.com/llvm/llvm-project/pull/100378