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| author | Jonathan Wright <jonathan.wright@arm.com> | 2021-10-11 18:37:32 +0100 |
|---|---|---|
| committer | Jonathan Wright <jonathan.wright@arm.com> | 2021-11-04 14:50:55 +0000 |
| commit | 2fc20260619b9f68044b7a3eb042726a382b5002 (patch) | |
| tree | 953d804f181780777925d5ca4867a95272f10e1a /gcc/genmodes.c | |
| parent | 8197ab94b47c814632d758dd36a121ad4114ff70 (diff) | |
| download | gcc-2fc20260619b9f68044b7a3eb042726a382b5002.zip gcc-2fc20260619b9f68044b7a3eb042726a382b5002.tar.gz gcc-2fc20260619b9f68044b7a3eb042726a382b5002.tar.bz2 | |
gcc/expr.c: Remove historic workaround for broken SIMD subreg
A long time ago, using a parallel to take a subreg of a SIMD register
was broken. This temporary fix[1] (from 2003) spilled these registers
to memory and reloaded the appropriate part to obtain the subreg.
The fix initially existed for the benefit of the PowerPC E500 - a
platform for which GCC removed support a number of years ago.
Regardless, a proper mechanism for taking a subreg of a SIMD register
exists now anyway.
This patch removes the workaround thus preventing SIMD registers
being dumped to memory unnecessarily - which sometimes can't be fixed
by later passes.
[1] https://gcc.gnu.org/pipermail/gcc-patches/2003-April/102099.html
gcc/ChangeLog:
2021-10-11 Jonathan Wright <jonathan.wright@arm.com>
* expr.c (emit_group_load_1): Remove historic workaround.
Diffstat (limited to 'gcc/genmodes.c')
0 files changed, 0 insertions, 0 deletions