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rs6000.c (rs6000_emit_prologue): Don't save the link register if we're not going to use it.

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* config/rs6000/rs6000.c (rs6000_emit_prologue): Don't save
	the link register if we're not going to use it.

	* config/rs6000/rs6000.c (output_profile_hook): Fix a warning.
	(output_function_profiler): Likewise.

From-SVN: r41888
This commit is contained in:
Geoffrey Keating 2001-05-07 02:54:29 +00:00 • committed by Geoffrey Keating
parent ff5a340ad5
commit d5fa86ba42
2 changed files with 13 additions and 6 deletions
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8
gcc/ChangeLog
View file

@ -1,3 +1,11 @@
2001-05-06 Geoff Keating <geoffk@redhat.com>
* config/rs6000/rs6000.c (rs6000_emit_prologue): Don't save
the link register if we're not going to use it.
* config/rs6000/rs6000.c (output_profile_hook): Fix a warning.
(output_function_profiler): Likewise.
2001-05-07 Alan Modra <amodra@one.net.au>
* pa.c (compute_frame_size): 64-bit frame marker is 16 bytes.

11
gcc/config/rs6000/rs6000.c
View file

@ -37,6 +37,7 @@ Boston, MA 02111-1307, USA. */
#include "except.h"
#include "function.h"
#include "output.h"
#include "basic-block.h"
#include "toplev.h"
#include "ggc.h"
#include "hashtab.h"
@ -5940,8 +5941,9 @@ rs6000_emit_prologue ()
it. We use R11 for this purpose because emit_load_toc_table
can use register 0. This allows us to use a plain 'blr' to return
from the procedure more often. */
int save_LR_around_toc_setup = (TARGET_ELF && flag_pic != 0 &&
! info->lr_save_p);
int save_LR_around_toc_setup = (TARGET_ELF && flag_pic != 0
&& ! info->lr_save_p
&& EXIT_BLOCK_PTR->pred != NULL);
if (save_LR_around_toc_setup)
emit_move_insn (gen_rtx_REG (Pmode, 11),
gen_rtx_REG (Pmode, LINK_REGISTER_REGNUM));
@ -7347,7 +7349,7 @@ output_profile_hook (labelno)
}
else if (DEFAULT_ABI == ABI_DARWIN)
{
char *mcount_name = RS6000_MCOUNT;
const char *mcount_name = RS6000_MCOUNT;
int caller_addr_regno = LINK_REGISTER_REGNUM;
/* Be conservative and always set this, at least for now. */
@ -7376,9 +7378,6 @@ output_function_profiler (file, labelno)
FILE *file;
int labelno;
{
/* The last used parameter register. */
int last_parm_reg;
int i, j;
char buf[100];
ASM_GENERATE_INTERNAL_LABEL (buf, "LP", labelno);