[clang] [CIR][NFC] Cleanup unhandled NYI in atomic libcall codegen (PR #223732)

[Sirui Mu via cfe-commits]

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@@ -1363,6 +1341,14 @@ static RValue emitLibCallForAtomicExpr(CIRGenFunction &cgf, AtomicExpr *e,
   case AtomicExpr::AO__scoped_atomic_max_fetch:
   case AtomicExpr::AO__scoped_atomic_fetch_uinc:
   case AtomicExpr::AO__scoped_atomic_fetch_udec:
+  case AtomicExpr::AO__atomic_fetch_fmaximum:
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Lancern wrote:

OGCG includes these.

https://github.com/llvm/llvm-project/pull/223732