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| author | Richard Kenner <kenner@gcc.gnu.org> | 1995-08-21 12:18:56 -0400 |
|---|---|---|
| committer | Richard Kenner <kenner@gcc.gnu.org> | 1995-08-21 12:18:56 -0400 |
| commit | 32c5cac2a5b73cc2ad5e8017ffc21c1f4da00025 (patch) | |
| tree | f6ccf778f407fa3b87f51afda116c727608649c4 | |
| parent | 46d81ffa4acfe8c6ae8a2701b1458d95a403dac8 (diff) | |
| download | gcc-32c5cac2a5b73cc2ad5e8017ffc21c1f4da00025.zip gcc-32c5cac2a5b73cc2ad5e8017ffc21c1f4da00025.tar.gz gcc-32c5cac2a5b73cc2ad5e8017ffc21c1f4da00025.tar.bz2 | |
(PROMOTE_FUNCTION_ARGS, PROMOTE_FUNCTION_RETURN): Define.
From-SVN: r10260
| -rw-r--r-- | gcc/config/sh/sh.h | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/gcc/config/sh/sh.h b/gcc/config/sh/sh.h index 35acd14..6c37a99 100644 --- a/gcc/config/sh/sh.h +++ b/gcc/config/sh/sh.h @@ -1430,10 +1430,12 @@ extern int pragma_interrupt; && GET_MODE_SIZE (MODE) < UNITS_PER_WORD) \ MODE = SImode; -/* PROMOTE_FUNCTION_ARGS and PROMOTE_FUNCTION_RETURN appear to have no - effect, because all unprototyped char/shorts are already promoted to - int, and because PROMOTE_PROTOTYPES causes all prototypes char/shorts - to be promoted to it. */ +/* Defining PROMOTE_FUNCTION_ARGS eliminates some unnecessary zero/sign + extensions applied to char/short functions arguments. Defining + PROMOTE_FUNCTION_RETURN does the same for function returns. */ + +#define PROMOTE_FUNCTION_ARGS +#define PROMOTE_FUNCTION_RETURN /* ??? Define ACCUMULATE_OUTGOING_ARGS? This is more efficient than pushing and poping arguments. However, we do have push/pop instructions, and |