diff options
| author | jakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4> | 2002-03-13 07:56:19 +0000 |
|---|---|---|
| committer | jakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4> | 2002-03-13 07:56:19 +0000 |
| commit | 937b20588517d8e28fe15dcb8fc28855e3c2e79d (patch) | |
| tree | f24c9e8242be1410ea02b25be13e9bd998a25d46 | |
| parent | 5e60cbe4248e8b6ee061e00052945628e766950d (diff) | |
| download | gcc-937b20588517d8e28fe15dcb8fc28855e3c2e79d.tar.gz | |
* config/sparc/sparc.h (INITIAL_FRAME_POINTER_OFFSET): Remove.
(ELIMINABLE_REGS): Add sfp->sp.
(INITIAL_ELIMINATION_OFFSET): Compute sfp->sp offset too.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@50725 138bc75d-0d04-0410-961f-82ee72b054a4
| -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 7127531117c..d78dd6c6248 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 92c8ace9e13..8caa9328acd 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 |