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| author | Evandro Menezes <evandro@gcc.gnu.org> | 2016-06-13 19:02:52 +0000 |
|---|---|---|
| committer | Evandro Menezes <evandro@gcc.gnu.org> | 2016-06-13 19:02:52 +0000 |
| commit | 9acc9cbeb8570573b8d73053453d65becc2d386a (patch) | |
| tree | 83b24b59e7b7a16a7bcfa358cd38d75be76f2d6f /gcc/selftest.c | |
| parent | d4f076c9b8f4288d748c871b5849146a518dee7b (diff) | |
| download | gcc-9acc9cbeb8570573b8d73053453d65becc2d386a.zip gcc-9acc9cbeb8570573b8d73053453d65becc2d386a.tar.gz gcc-9acc9cbeb8570573b8d73053453d65becc2d386a.tar.bz2 | |
[AArch64] Add more choices for the reciprocal square root approximation
Allow a target to prefer such operation depending on the operation mode.
gcc/
* config/aarch64/aarch64-protos.h
(AARCH64_APPROX_MODE): New macro.
(AARCH64_APPROX_{NONE,ALL}): Likewise.
(cpu_approx_modes): New structure.
(tune_params): New member "approx_modes".
* config/aarch64/aarch64-tuning-flags.def
(AARCH64_EXTRA_TUNE_APPROX_RSQRT): Remove macro.
* config/aarch64/aarch64.c
({generic,exynosm1,xgene1}_approx_modes): New core
"cpu_approx_modes" structures.
(generic_tunings): New member "approx_modes".
(cortexa35_tunings): Likewise.
(cortexa53_tunings): Likewise.
(cortexa57_tunings): Likewise.
(cortexa72_tunings): Likewise.
(exynosm1_tunings): Likewise.
(thunderx_tunings): Likewise.
(xgene1_tunings): Likewise.
(use_rsqrt_p): New argument for the mode and use new member from
"tune_params".
(aarch64_builtin_reciprocal): Devise mode from builtin.
(aarch64_optab_supported_p): New argument for the mode.
* doc/invoke.texi (-mlow-precision-recip-sqrt): Reword description.
From-SVN: r237395
Diffstat (limited to 'gcc/selftest.c')
0 files changed, 0 insertions, 0 deletions