[clang] [llvm] [APFloat] Add APFloat support for FP6 data types (PR #94735)

[Thorsten Schütt via cfe-commits]

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@@ -3518,13 +3542,17 @@ APInt IEEEFloat::convertIEEEFloatToAPInt() const {
     myexponent = ::exponentZero(S) + bias;
     mysignificand.fill(0);
   } else if (category == fcInfinity) {
-    if (S.nonFiniteBehavior == fltNonfiniteBehavior::NanOnly) {
+    if (S.nonFiniteBehavior == fltNonfiniteBehavior::NanOnly ||
+        S.nonFiniteBehavior == fltNonfiniteBehavior::NoNanInf) {
       llvm_unreachable("semantics don't support inf!");
     }
     myexponent = ::exponentInf(S) + bias;
     mysignificand.fill(0);
   } else {
     assert(category == fcNaN && "Unknown category!");
+    if (S.nonFiniteBehavior == fltNonfiniteBehavior::NoNanInf) {
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tschuett wrote:

No redundant braces.

https://github.com/llvm/llvm-project/pull/94735