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| author | David Edelsohn <dje.gcc@gmail.com> | 2021-01-27 16:47:22 -0500 |
|---|---|---|
| committer | David Edelsohn <dje.gcc@gmail.com> | 2021-01-30 12:08:00 -0500 |
| commit | 2e7750cb518f5abedbd6fb2725882079a6934dce (patch) | |
| tree | 3c2f26f33e101db09a2eebcdd6824214e9c96674 /gcc/system.h | |
| parent | 92dd3e71f957c7818f4ce4189bd187b59af20d9b (diff) | |
| download | gcc-2e7750cb518f5abedbd6fb2725882079a6934dce.zip gcc-2e7750cb518f5abedbd6fb2725882079a6934dce.tar.gz gcc-2e7750cb518f5abedbd6fb2725882079a6934dce.tar.bz2 | |
aix: Permit use of AIX Vector extended ABI mode
AIX only permits use of Altivec VSRs 20-31 in a Vector Extended ABI mode.
This patch explicitly enables use of the VSRs using the new -mabi=vec-extabi
command line option also implemented in LLVM for AIX.
Bootstrapped on powerpc-ibm-aix7.2.3.0 and powerpc64le-linux-gnu.
gcc/ChangeLog:
* config/rs6000/rs6000.opt (mabi=vec-extabi): New.
(mabi=vec-default): New.
* config/rs6000/rs6000-c.c (rs6000_target_modify_macros): Define
__EXTABI__ for AIX Vector extended ABI.
* config/rs6000/rs6000.c (rs6000_debug_reg_global): Print AIX Vector
extabi info.
(conditional_register_usage): If AIX vec_extabi enabled, vs20-vs31
are non-volatile.
* doc/invoke.texi (PowerPC mabi): Add AIX vec-extabi and vec-default.
Diffstat (limited to 'gcc/system.h')
0 files changed, 0 insertions, 0 deletions