Here is the benchmark result for is_const.
https://github.com/ken-matsui/gcc-benches/blob/main/is_const.md#sat-jun-24-044815-am-pdt-2023
Time: -2.86467%
Peak Memory Usage: -1.0654%
Total Memory Usage: -1.62369%
On Sat, Jun 24, 2023 at 6:41 AM Ken Matsui wrote:
>
> This patch implements built-in
This patch implements built-in trait for std::is_const.
gcc/cp/ChangeLog:
* cp-trait.def: Define __is_const.
* constraint.cc (diagnose_trait_expr): Handle CPTK_IS_CONST.
* semantics.cc (trait_expr_value): Likewise.
(finish_trait_expr): Likewise.
gcc/testsuite/Chan
