================
@@ -660,15 +660,23 @@ def Clz : Builtin, BitShort_Int_Long_LongLongTemplate {
let Prototype = "int(unsigned T)";
}
-// FIXME: Add int clzimax(uintmax_t)
+def Clzg : Builtin {
+ let Spellings = ["__builtin_clzg"];
+ let Attributes = [NoThrow, Const, CustomTypeChecking];
----------------
overmighty wrote:
I will implement `constexpr` support. It requires adding a few lines in
clang/lib/AST/ExprConstant.cpp and clang/lib/AST/Interp/InterpBuiltin.cpp.
https://github.com/llvm/llvm-project/pull/83431
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