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| author | Michael Hayes <m.hayes@elec.canterbury.ac.nz> | 1999-04-02 15:39:55 +0000 |
|---|---|---|
| committer | Michael Hayes <m.hayes@gcc.gnu.org> | 1999-04-02 15:39:55 +0000 |
| commit | 6e01bd94f8b53772367ee1860fde5f5c06891873 (patch) | |
| tree | 6f697a65ccb6286b9ce4a6e8687a4a9f20a8d2fb /gcc/rtl.h | |
| parent | 8f0327178b2158f8c6ee5996b2bd12c7dde8dbe8 (diff) | |
| download | gcc-6e01bd94f8b53772367ee1860fde5f5c06891873.zip gcc-6e01bd94f8b53772367ee1860fde5f5c06891873.tar.gz gcc-6e01bd94f8b53772367ee1860fde5f5c06891873.tar.bz2 | |
tm.texi (USE_LOAD_POST_DECREMENT, [...]): Document.
* tm.texi (USE_LOAD_POST_DECREMENT, USE_LOAD_PRE_DECREMENT,
USE_STORE_POST_DECREMENT, USE_STORE_PRE_DECREMENT): Document.
(USE_LOAD_POST_INCREMENT, USE_LOAD_PRE_INCREMENT,
USE_STORE_POST_INCREMENT, USE_STORE_PRE_INCREMENT): Fix documentation.
* rtl.h (USE_LOAD_POST_DECREMENT, USE_LOAD_PRE_DECREMENT,
USE_STORE_POST_DECREMENT, USE_STORE_PRE_DECREMENT,
USE_LOAD_POST_INCREMENT, USE_LOAD_PRE_INCREMENT,
USE_STORE_POST_INCREMENT, USE_STORE_PRE_INCREMENT): Provide default
definition.
* expr.c: (USE_LOAD_POST_INCREMENT, USE_LOAD_PRE_INCREMENT,
USE_STORE_POST_INCREMENT, USE_STORE_PRE_INCREMENT): Delete default
definition.
From-SVN: r26134
Diffstat (limited to 'gcc/rtl.h')
| -rw-r--r-- | gcc/rtl.h | 38 |
1 files changed, 38 insertions, 0 deletions
@@ -755,6 +755,44 @@ extern char *note_insn_name[]; #define HAVE_POST_DECREMENT 0 #endif + +/* Some architectures do not have complete pre/post increment/decrement + instruction sets, or only move some modes efficiently. These macros + allow us to tune autoincrement generation. */ + +#ifndef USE_LOAD_POST_INCREMENT +#define USE_LOAD_POST_INCREMENT(MODE) HAVE_POST_INCREMENT +#endif + +#ifndef USE_LOAD_POST_DECREMENT +#define USE_LOAD_POST_DECREMENT(MODE) HAVE_POST_DECREMENT +#endif + +#ifndef USE_LOAD_PRE_INCREMENT +#define USE_LOAD_PRE_INCREMENT(MODE) HAVE_PRE_INCREMENT +#endif + +#ifndef USE_LOAD_PRE_DECREMENT +#define USE_LOAD_PRE_DECREMENT(MODE) HAVE_PRE_DECREMENT +#endif + +#ifndef USE_STORE_POST_INCREMENT +#define USE_STORE_POST_INCREMENT(MODE) HAVE_POST_INCREMENT +#endif + +#ifndef USE_STORE_POST_DECREMENT +#define USE_STORE_POST_DECREMENT(MODE) HAVE_POST_DECREMENT +#endif + +#ifndef USE_STORE_PRE_INCREMENT +#define USE_STORE_PRE_INCREMENT(MODE) HAVE_PRE_INCREMENT +#endif + +#ifndef USE_STORE_PRE_DECREMENT +#define USE_STORE_PRE_DECREMENT(MODE) HAVE_PRE_DECREMENT +#endif + + /* Accessors for RANGE_INFO. */ /* For RANGE_{START,END} notes return the RANGE_START note. */ #define RANGE_INFO_NOTE_START(INSN) (XEXP (INSN, 0)) |