[clang] [llvm] [C++23] [CLANG] Adding C++23 constexpr math functions: fmin, fmax and frexp. (PR #88978)

[Hubert Tong via llvm-commits]

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@@ -3622,15 +3623,15 @@ def Fma : FPMathTemplate, LibBuiltin<"math.h"> {
 
 def Fmax : FPMathTemplate, LibBuiltin<"math.h"> {
   let Spellings = ["fmax"];
-  let Attributes = [NoThrow, Const];
+  let Attributes = [NoThrow, Const, Constexpr];
   let Prototype = "T(T, T)";
   let AddBuiltinPrefixedAlias = 1;
   let OnlyBuiltinPrefixedAliasIsConstexpr = 1;
 }
 
 def Fmin : FPMathTemplate, LibBuiltin<"math.h"> {
   let Spellings = ["fmin"];
-  let Attributes = [NoThrow, Const];
+  let Attributes = [NoThrow, Const, Constexpr];
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hubert-reinterpretcast wrote:

Same comment re: making the non-prefixed versions `constexpr` only for C++23 and up.

https://github.com/llvm/llvm-project/pull/88978