[llvm] [llvm] `APFloat`: Add helpers to query NaN/inf semantics (PR #116315)

[Durgadoss R via llvm-commits]

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@@ -375,7 +375,12 @@ bool APFloatBase::semanticsHasSignedRepr(const fltSemantics &semantics) {
   return semantics.hasSignedRepr;
 }
 
-bool APFloatBase::semanticsHasNanOrInf(const fltSemantics &semantics) {
+bool APFloatBase::semanticsHasInf(const fltSemantics &semantics) {
+  return semantics.nonFiniteBehavior != fltNonfiniteBehavior::NanOnly &&
+         semantics.nonFiniteBehavior != fltNonfiniteBehavior::FiniteOnly;
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durga4github wrote:

Since the only other one left is IEEE semantics, should we check (== IEEE754) ?

https://github.com/llvm/llvm-project/pull/116315