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sparc.h (INITIAL_FRAME_POINTER_OFFSET): Remove.

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* 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
This commit is contained in:
Jakub Jelinek 2002-03-13 08:56:19 +01:00 committed by Jakub Jelinek
parent 09948ece3d
commit e387e99b29
2 changed files with 25 additions and 13 deletions
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8
gcc/ChangeLog
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@ -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.

30
gcc/config/sparc/sparc.h
View File

@ -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