| commit | 545480506fc6576ea37a14e56c654935c691709d | |
| author | Junxian Zhu <zhujunxian@oss.cipunited.com> | |
| Tue, 6 Feb 2024 08:34:56 +0000 (6 16:34 +0800) | ||
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | |
| Wed, 14 Feb 2024 15:20:49 +0000 (14 12:20 -0300) | ||
| tree | 35a29428ec2c82aef6ed6a0f3af2ebd9a40726be | treesnapshot (tar.gz zip) |
| parent | 491e55beab7457ed310a4a47496f4a333c5d1032 | commitdiff |
mips: Use builtins for ffs and ffsll
__builtin_ffs{,ll} basically on __builtin_ctz{,ll} in MIPS GCC compiler.
The hardware ctz instructions were available after MIPS{32,64} Release1. By using builtin ctz. It can also reduce code size of ffs/ffsll.
Checked on mips o32. mips64.
Signed-off-by: Junxian Zhu <zhujunxian@oss.cipunited.com>
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Reviewed-by: Maxim Kuvyrkov <maxim.kuvyrkov@linaro.org>
__builtin_ffs{,ll} basically on __builtin_ctz{,ll} in MIPS GCC compiler.
The hardware ctz instructions were available after MIPS{32,64} Release1. By using builtin ctz. It can also reduce code size of ffs/ffsll.
Checked on mips o32. mips64.
Signed-off-by: Junxian Zhu <zhujunxian@oss.cipunited.com>
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Reviewed-by: Maxim Kuvyrkov <maxim.kuvyrkov@linaro.org>
| sysdeps/mips/math-use-builtins-ffs.h | [new file with mode: 0644] | blob |