This patch series implements __is_integral, __is_floating_point, __is_arithmetic, __is_unsigned, __is_signed, and __is_scalar built-in traits and optimizes std::is_integral, std::is_floating_point, std::is_arithmetic, std::is_unsigned, std::is_signed, std::is_scalar, std::is_fundamental, and std::is_compound compilation performance. Here are the benchmark results:
std::is_integral: https://github.com/ken-matsui/gcc-bench/blob/main/is_integral.md#wed-jan-10-112014-am-pst-2024 Time: -28.5606%, Peak Mem: -25.0022%, Total Mem: -22.4503% std::is_integral_v: https://github.com/ken-matsui/gcc-bench/blob/main/is_integral_v.md#wed-jan-10-112014-am-pst-2024 Time: -44.9068%, Peak Mem: -37.046%, Total Mem: -36.3088% std::is_floating_point: https://github.com/ken-matsui/gcc-bench/blob/main/is_floating_point.md#wed-jan-10-112014-am-pst-2024 Time: -22.1413%, Peak Mem: -24.9831%, Total Mem: -22.4503% std::is_floating_point_v: https://github.com/ken-matsui/gcc-bench/blob/main/is_floating_point_v.md#wed-jan-10-112014-am-pst-2024 Time: -44.9223%, Peak Mem: -37.0304%, Total Mem: -36.2869% std::is_arithmetic: https://github.com/ken-matsui/gcc-bench/blob/main/is_arithmetic.md#wed-jan-10-112014-am-pst-2024 Time: -67.5805%, Peak Mem: -55.3318%, Total Mem: -58.5106% std::is_arithmetic_v: https://github.com/ken-matsui/gcc-bench/blob/main/is_arithmetic_v.md#wed-jan-10-112014-am-pst-2024 Time: -74.1939%, Peak Mem: -61.3623%, Total Mem: -64.8586% std::is_fundamental: https://github.com/ken-matsui/gcc-bench/blob/main/is_fundamental.md#wed-jan-10-112014-am-pst-2024 Time: -62.5392%, Peak Mem: -49.5002%, Total Mem: -53.3734% std::is_fundamental_v: https://github.com/ken-matsui/gcc-bench/blob/main/is_fundamental_v.md#wed-jan-10-112014-am-pst-2024 Time: -56.9926%, Peak Mem: -49.3151%, Total Mem: -53.8913% std::is_compound: https://github.com/ken-matsui/gcc-bench/blob/main/is_compound.md#wed-jan-10-112014-am-pst-2024 Time: -56.3176%, Peak Mem: -45.7971%, Total Mem: -49.4637% std::is_compound_v: https://github.com/ken-matsui/gcc-bench/blob/main/is_compound_v.md#wed-jan-10-112014-am-pst-2024 Time: -56.0783%, Peak Mem: -47.7484%, Total Mem: -52.5631% std::is_unsigned: https://github.com/ken-matsui/gcc-bench/blob/main/is_unsigned.md#wed-jan-10-112014-am-pst-2024 Time: -75.9165%, Peak Mem: -65.632%, Total Mem: -68.8883% std::is_unsigned_v: https://github.com/ken-matsui/gcc-bench/blob/main/is_unsigned_v.md#wed-jan-10-112014-am-pst-2024 Time: -81.7237%, Peak Mem: -70.1175%, Total Mem: -73.4473% std::is_signed: https://github.com/ken-matsui/gcc-bench/blob/main/is_signed.md#wed-jan-10-112014-am-pst-2024 Time: -72.8341%, Peak Mem: -61.9239%, Total Mem: -64.5455% std::is_signed_v: https://github.com/ken-matsui/gcc-bench/blob/main/is_signed_v.md#wed-jan-10-112014-am-pst-2024 Time: -79.9365%, Peak Mem: -66.9684%, Total Mem: -69.8372% std::is_scalar: https://github.com/ken-matsui/gcc-bench/blob/main/is_scalar.md#wed-jan-10-112014-am-pst-2024 Time: -87.2356%, Peak Mem: -79.0888%, Total Mem: -82.2095% std::is_scalar_v: https://github.com/ken-matsui/gcc-bench/blob/main/is_scalar_v.md#wed-jan-10-112014-am-pst-2024 Time: -89.5349%, Peak Mem: -83.2528%, Total Mem: -85.6074% Ken Matsui (14): c++: Implement __is_integral built-in trait libstdc++: Optimize std::is_integral compilation performance c++: Implement __is_floating_point built-in trait libstdc++: Optimize std::is_floating_point compilation performance c++: Implement __is_arithmetic built-in trait libstdc++: Optimize std::is_arithmetic compilation performance libstdc++: Optimize std::is_fundamental compilation performance libstdc++: Optimize std::is_compound compilation performance c++: Implement __is_unsigned built-in trait libstdc++: Optimize std::is_unsigned compilation performance c++: Implement __is_signed built-in trait libstdc++: Optimize std::is_signed compilation performance c++: Implement __is_scalar built-in trait libstdc++: Optimize std::is_scalar compilation performance gcc/cp/constraint.cc | 18 ++++ gcc/cp/cp-trait.def | 6 ++ gcc/cp/semantics.cc | 65 +++++++++++- gcc/testsuite/g++.dg/ext/has-builtin-1.C | 18 ++++ gcc/testsuite/g++.dg/ext/is_arithmetic.C | 31 ++++++ gcc/testsuite/g++.dg/ext/is_floating_point.C | 43 ++++++++ gcc/testsuite/g++.dg/ext/is_integral.C | 49 +++++++++ gcc/testsuite/g++.dg/ext/is_scalar.C | 28 +++++ gcc/testsuite/g++.dg/ext/is_signed.C | 45 +++++++++ gcc/testsuite/g++.dg/ext/is_unsigned.C | 45 +++++++++ libstdc++-v3/include/std/type_traits | 101 ++++++++++++++++++- 11 files changed, 441 insertions(+), 8 deletions(-) create mode 100644 gcc/testsuite/g++.dg/ext/is_arithmetic.C create mode 100644 gcc/testsuite/g++.dg/ext/is_floating_point.C create mode 100644 gcc/testsuite/g++.dg/ext/is_integral.C create mode 100644 gcc/testsuite/g++.dg/ext/is_scalar.C create mode 100644 gcc/testsuite/g++.dg/ext/is_signed.C create mode 100644 gcc/testsuite/g++.dg/ext/is_unsigned.C -- 2.43.0