diff options
| author | James Greenhalgh <james.greenhalgh@arm.com> | 2014-11-01 08:13:09 +0000 |
|---|---|---|
| committer | James Greenhalgh <jgreenhalgh@gcc.gnu.org> | 2014-11-01 08:13:09 +0000 |
| commit | 7cbed00872ff3e20e5183f0cb788cd0c86bdf168 (patch) | |
| tree | c478897b6815f2a9b6b21d0aca73130690f0b5fd /gcc/defaults.h | |
| parent | 240decf782968d137494cc9850fad5b310192c38 (diff) | |
| download | gcc-7cbed00872ff3e20e5183f0cb788cd0c86bdf168.zip gcc-7cbed00872ff3e20e5183f0cb788cd0c86bdf168.tar.gz gcc-7cbed00872ff3e20e5183f0cb788cd0c86bdf168.tar.bz2 | |
[Patch 1/7] Hookize *_BY_PIECES_P
gcc/
* target.def (use_by_pieces_infrastructure_p): New.
* doc/tm.texi.in (MOVE_BY_PIECES_P): Describe that this macro
is deprecated.
(STORE_BY_PIECES_P): Likewise.
(CLEAR_BY_PIECES_P): Likewise.
(SET_BY_PIECES_P): Likewise.
(TARGET_MOVE_BY_PIECES_PROFITABLE_P): Add hook.
* doc/tm.texi: Regenerate.
* expr.c (MOVE_BY_PIECES_P): Rewrite in terms of
TARGET_USE_BY_PIECES_INFRASTRUCTURE_P.
(STORE_BY_PIECES_P): Likewise.
(CLEAR_BY_PIECES_P): Likewise.
(SET_BY_PIECES_P): Likewise.
(STORE_MAX_PIECES): Move to...
* defaults.h (STORE_MAX_PIECES): ...here.
* targhooks.c (get_move_ratio): New.
(default_use_by_pieces_infrastructure_p): Likewise.
* targhooks.h (default_use_by_pieces_infrastructure_p): New.
* target.h (by_pieces_operation): New.
From-SVN: r216996
Diffstat (limited to 'gcc/defaults.h')
| -rw-r--r-- | gcc/defaults.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/gcc/defaults.h b/gcc/defaults.h index c1776b0..d2609e7 100644 --- a/gcc/defaults.h +++ b/gcc/defaults.h @@ -1006,6 +1006,15 @@ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see #define MOVE_MAX_PIECES MOVE_MAX #endif +/* STORE_MAX_PIECES is the number of bytes at a time that we can + store efficiently. Due to internal GCC limitations, this is + MOVE_MAX_PIECES limited by the number of bytes GCC can represent + for an immediate constant. */ + +#ifndef STORE_MAX_PIECES +#define STORE_MAX_PIECES MIN (MOVE_MAX_PIECES, 2 * sizeof (HOST_WIDE_INT)) +#endif + #ifndef MAX_MOVE_MAX #define MAX_MOVE_MAX MOVE_MAX #endif |