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| author | Jakub Jelinek <jakub@redhat.com> | 2002-03-13 08:56:19 +0100 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2002-03-13 08:56:19 +0100 |
| commit | e387e99b29b8860d7e766d805f329b71167e1c85 (patch) | |
| tree | f24c9e8242be1410ea02b25be13e9bd998a25d46 /gcc | |
| parent | 09948ece3d6f36ebf908a5a2ee6b98d856bf0c92 (diff) | |
| download | gcc-e387e99b29b8860d7e766d805f329b71167e1c85.zip gcc-e387e99b29b8860d7e766d805f329b71167e1c85.tar.gz gcc-e387e99b29b8860d7e766d805f329b71167e1c85.tar.bz2 | |
sparc.h (INITIAL_FRAME_POINTER_OFFSET): Remove.
* config/sparc/sparc.h (INITIAL_FRAME_POINTER_OFFSET): Remove.
(ELIMINABLE_REGS): Add sfp->sp.
(INITIAL_ELIMINATION_OFFSET): Compute sfp->sp offset too.
From-SVN: r50725
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 8 | ||||
| -rw-r--r-- | gcc/config/sparc/sparc.h | 30 |
2 files changed, 25 insertions, 13 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 7127531..d78dd6c 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,4 +1,10 @@ -2002-03-12 Jakub Jelinek <jakub@redhat.com> +2002-03-13 Jakub Jelinek <jakub@redhat.com> + + * config/sparc/sparc.h (INITIAL_FRAME_POINTER_OFFSET): Remove. + (ELIMINABLE_REGS): Add sfp->sp. + (INITIAL_ELIMINATION_OFFSET): Compute sfp->sp offset too. + +2002-03-13 Jakub Jelinek <jakub@redhat.com> PR optimization/5892 * config/ia64/ia64.c (rotate_one_bundle): Update current packet. diff --git a/gcc/config/sparc/sparc.h b/gcc/config/sparc/sparc.h index 92c8ace..8caa932 100644 --- a/gcc/config/sparc/sparc.h +++ b/gcc/config/sparc/sparc.h @@ -1139,16 +1139,6 @@ extern int sparc_mode_class[]; || !leaf_function_p ()) \ : ! (leaf_function_p () && only_leaf_regs_used ())) -/* C statement to store the difference between the frame pointer - and the stack pointer values immediately after the function prologue. - - Note, we always pretend that this is a leaf function because if - it's not, there's no point in trying to eliminate the - frame pointer. If it is a leaf function, we guessed right! */ -#define INITIAL_FRAME_POINTER_OFFSET(VAR) \ - ((VAR) = (TARGET_FLAT ? sparc_flat_compute_frame_size (get_frame_size ()) \ - : compute_frame_size (get_frame_size (), 1))) - /* Base register for access to arguments of the function. */ #define ARG_POINTER_REGNUM FRAME_POINTER_REGNUM @@ -1577,12 +1567,28 @@ extern const char leaf_reg_remap[]; /* ??? In TARGET_FLAT mode we needn't have a hard frame pointer. */ #define ELIMINABLE_REGS \ - {{ FRAME_POINTER_REGNUM, HARD_FRAME_POINTER_REGNUM}} + {{ FRAME_POINTER_REGNUM, STACK_POINTER_REGNUM}, \ + { FRAME_POINTER_REGNUM, HARD_FRAME_POINTER_REGNUM} } #define CAN_ELIMINATE(FROM, TO) 1 #define INITIAL_ELIMINATION_OFFSET(FROM, TO, OFFSET) \ - ((OFFSET) = SPARC_STACK_BIAS) + do { \ + (OFFSET) = 0; \ + if ((TO) == STACK_POINTER_REGNUM) \ + { \ + /* Note, we always pretend that this is a leaf function \ + because if it's not, there's no point in trying to \ + eliminate the frame pointer. If it is a leaf \ + function, we guessed right! */ \ + if (TARGET_FLAT) \ + (OFFSET) = \ + sparc_flat_compute_frame_size (get_frame_size ()); \ + else \ + (OFFSET) = compute_frame_size (get_frame_size (), 1); \ + } \ + (OFFSET) += SPARC_STACK_BIAS; \ + } while (0) /* Keep the stack pointer constant throughout the function. This is both an optimization and a necessity: longjmp |