[clang] Clang: Support minimumnum and maximumnum intrinsics (PR #96281)

[YunQiang Su via cfe-commits]

================
@@ -15314,6 +15314,32 @@ bool FloatExprEvaluator::VisitCallExpr(const CallExpr 
*E) {
       Result = RHS;
     return true;
   }
+
+  case Builtin::BI__builtin_fmaximum_num:
+  case Builtin::BI__builtin_fmaximum_numf:
+  case Builtin::BI__builtin_fmaximum_numl:
+  case Builtin::BI__builtin_fmaximum_numf16:
+  case Builtin::BI__builtin_fmaximum_numf128: {
+    APFloat RHS(0.);
+    if (!EvaluateFloat(E->getArg(0), Result, Info) ||
----------------
wzssyqa wrote:

Thanks.
@tbaederr It seems that `__builtin_fmaximum_num` cannot work with 
`-fexperimental-new-constant-interpreter`.
I guess I must miss something.
Any idea?

https://github.com/llvm/llvm-project/pull/96281
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