Elementwise builtins are not constexpr #57905
Description
https://simd.godbolt.org/z/E4KcoTfdP
typedef int __v4si __attribute__((__vector_size__(16)));
constexpr __v4si minmax(__v4si x, __v4si y) {
return __builtin_elementwise_max(x, y);
}clang -g0 -O3
<source>:3:18: error: constexpr function never produces a constant expression [-Winvalid-constexpr]
constexpr __v4si minmax(__v4si x, __v4si y) {
^
<source>:4:12: note: subexpression not valid in a constant expression
return __builtin_elementwise_max(x, y);