diff options
| author | Patrick Palka <ppalka@redhat.com> | 2024-01-02 21:31:20 -0500 |
|---|---|---|
| committer | Patrick Palka <ppalka@redhat.com> | 2024-01-02 21:31:20 -0500 |
| commit | a138b99646a5551c53b860648521adb5bfe8c2fa (patch) | |
| tree | 38a6ba0a7a211a84e750410e6d45cdfa538e0134 | |
| parent | 45c807b79479a725c968db638ddd0fd5f25deeaa (diff) | |
| download | gcc-a138b99646a5551c53b860648521adb5bfe8c2fa.zip gcc-a138b99646a5551c53b860648521adb5bfe8c2fa.tar.gz gcc-a138b99646a5551c53b860648521adb5bfe8c2fa.tar.bz2 | |
libstdc++: testsuite: Reduce max_size_type.cc exec time [PR113175]
The adjustment to max_size_type.cc in r14-205-g83470a5cd4c3d2
inadvertently increased the execution time of this test by over 5x due
to making the two main loops actually run in the signed_p case instead
of being dead code.
To compensate, this patch cuts the relevant loops' range [-1000,1000] by
10x as proposed in the PR. This shouldn't significantly weaken the test
since the same important edge cases are still checked in the smaller range
and/or elsewhere. On my machine this reduces the test's execution time by
roughly 10x (and 1.6x relative to before r14-205).
PR testsuite/113175
libstdc++-v3/ChangeLog:
* testsuite/std/ranges/iota/max_size_type.cc (test02): Reduce
'limit' to 100 from 1000 and adjust 'log2_limit' accordingly.
(test03): Likewise.
| -rw-r--r-- | libstdc++-v3/testsuite/std/ranges/iota/max_size_type.cc | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/libstdc++-v3/testsuite/std/ranges/iota/max_size_type.cc b/libstdc++-v3/testsuite/std/ranges/iota/max_size_type.cc index a1fbc3241..27f25c7 100644 --- a/libstdc++-v3/testsuite/std/ranges/iota/max_size_type.cc +++ b/libstdc++-v3/testsuite/std/ranges/iota/max_size_type.cc @@ -199,8 +199,8 @@ test02() using max_type = std::conditional_t<signed_p, max_diff_t, max_size_t>; using shorten_type = std::conditional_t<shorten_p, hw_type, max_type>; const int hw_type_bit_size = sizeof(hw_type) * __CHAR_BIT__; - const int limit = 1000; - const int log2_limit = 10; + const unsigned limit = 100; + const int log2_limit = 7; static_assert((1 << log2_limit) >= limit); const int min = (signed_p ? -limit : 0); const int max = limit; @@ -257,8 +257,8 @@ test03() using max_type = std::conditional_t<signed_p, max_diff_t, max_size_t>; using base_type = std::conditional_t<toggle_base_p, hw_type, max_type>; constexpr int hw_type_bit_size = sizeof(hw_type) * __CHAR_BIT__; - constexpr int limit = 1000; - constexpr int log2_limit = 10; + constexpr unsigned limit = 100; + constexpr int log2_limit = 7; static_assert((1 << log2_limit) >= limit); const int min = (signed_p ? -limit : 0); const int max = limit; |