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sh.h (REGISTER_NATURAL_MODE): Save part-clobbered registers in SImode.

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* config/sh/sh.h (REGISTER_NATURAL_MODE): Save part-clobbered
registers in SImode.
(HARD_REGNO_CALL_PART_CLOBBERED) [TARGET_SHMEDIA32]: Set r18 as
part-clobbered.

From-SVN: r49632
This commit is contained in:
Alexandre Oliva 2002-02-09 03:58:50 +00:00 • committed by Alexandre Oliva
parent 2b1fd83f62
commit a138247b54
2 changed files with 11 additions and 3 deletions
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5
gcc/ChangeLog
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@ -1,5 +1,10 @@
2002-02-09 Alexandre Oliva <aoliva@redhat.com>
* config/sh/sh.h (REGISTER_NATURAL_MODE): Save part-clobbered
registers in SImode.
(HARD_REGNO_CALL_PART_CLOBBERED) [TARGET_SHMEDIA32]: Set r18 as
part-clobbered.
* config/sh/sh.c (expand_prologue): Fix mis-applied 2001-11-09's
patch.

9
gcc/config/sh/sh.h
View file

@ -720,7 +720,9 @@ extern char sh_additional_register_names[ADDREGNAMES_SIZE] \
#define REGISTER_NATURAL_MODE(REGNO) \
(FP_REGISTER_P (REGNO) ? SFmode \
: XD_REGISTER_P (REGNO) ? DFmode \
: TARGET_SHMEDIA ? DImode : SImode)
: TARGET_SHMEDIA && ! HARD_REGNO_CALL_PART_CLOBBERED ((REGNO), DImode) \
? DImode \
: SImode)
#define FIRST_PSEUDO_REGISTER 153
@ -811,8 +813,9 @@ extern char sh_additional_register_names[ADDREGNAMES_SIZE] \
#define HARD_REGNO_CALL_PART_CLOBBERED(REGNO,MODE) \
(TARGET_SHMEDIA32 \
&& GET_MODE_SIZE (MODE) > 4 \
&& (REGNO) >= FIRST_GENERAL_REG + 10 \
&& (REGNO) <= FIRST_GENERAL_REG + 14)
&& (((REGNO) >= FIRST_GENERAL_REG + 10 \
&& (REGNO) <= FIRST_GENERAL_REG + 14) \
|| (REGNO) == PR_MEDIA_REG))
/* Return number of consecutive hard regs needed starting at reg REGNO
to hold something of mode MODE.