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| author | Joern Rennecke <joern.rennecke@embecosm.com> | 2011-12-10 09:40:02 +0000 |
|---|---|---|
| committer | Joern Rennecke <amylaar@gcc.gnu.org> | 2011-12-10 09:40:02 +0000 |
| commit | af7476b83de4f3072debb9e4638360274db0351a (patch) | |
| tree | f1b985857cb95e7fb4c1c47f2103ff82a4cb36d4 /gcc/config | |
| parent | 2ac69a0c6c54cc878a732ae9a647ac701396ad2f (diff) | |
| download | gcc-af7476b83de4f3072debb9e4638360274db0351a.tar.gz | |
epiphany.h (USE_LOAD_POST_INCREMENT): Define.
* config/epiphany/epiphany.h (USE_LOAD_POST_INCREMENT): Define.
(USE_LOAD_POST_DECREMENT, USE_STORE_POST_INCREMENT): Likewise.
(USE_STORE_POST_DECREMENT): Likewise.
From-SVN: r182185
Diffstat (limited to 'gcc/config')
| -rw-r--r-- | gcc/config/epiphany/epiphany.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/gcc/config/epiphany/epiphany.h b/gcc/config/epiphany/epiphany.h index 9d03ee909b8..08b121b8cde 100644 --- a/gcc/config/epiphany/epiphany.h +++ b/gcc/config/epiphany/epiphany.h @@ -602,6 +602,21 @@ typedef struct GTY (()) machine_function #define HAVE_POST_MODIFY_DISP TARGET_POST_MODIFY #define HAVE_POST_MODIFY_REG TARGET_POST_MODIFY +/* Currently, the only users of the USE_*CREMENT macros are + move_by_pieces / store_by_pieces_1 . We don't want them to use + POST_MODIFY modes, because we got ample addressing range for the + reg+offset addressing mode; besides, there are short index+offset loads, + but the only short post-modify load uses POST_MODIFY_REG. + Moreover, using auto-increment in move_by_pieces from structure copying + in the prologue causes confused debug output. + If another pass starts using these macros where the use of these + addressing modes would make more sense, we can try checking the + current pass. */ +#define USE_LOAD_POST_INCREMENT(MODE) 0 +#define USE_LOAD_POST_DECREMENT(MODE) 0 +#define USE_STORE_POST_INCREMENT(MODE) 0 +#define USE_STORE_POST_DECREMENT(MODE) 0 + /* Recognize any constant value that is a valid address. */ #define CONSTANT_ADDRESS_P(X) \ (GET_CODE (X) == LABEL_REF || GET_CODE (X) == SYMBOL_REF \ |