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sh-protos.h (sh_pr_interrupt): Declare.

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* sh-protos.h (sh_pr_interrupt): Declare.
	* sh.c (sh_pr_interrupt): New function.
	(print_operand, calc_live_regs, sh_expand_prologue): Use it.
	(sh_hard_regno_rename_ok): Likewise.
	* sh.h (NORMAL_MODE): FP_MODE_NONE for interupt handlers.

From-SVN: r54756
This commit is contained in:
J"orn Rennecke 2002-06-18 19:03:18 +00:00 • committed by Joern Rennecke
parent ab928b3241
commit e3ba8d11f8
4 changed files with 23 additions and 29 deletions
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8
gcc/ChangeLog
View file

@ -1,3 +1,11 @@
Tue Jun 18 20:00:37 2002 J"orn Rennecke <joern.rennecke@superh.com>
* sh-protos.h (sh_pr_interrupt): Declare.
* sh.c (sh_pr_interrupt): New function.
(print_operand, calc_live_regs, sh_expand_prologue): Use it.
(sh_hard_regno_rename_ok): Likewise.
* sh.h (NORMAL_MODE): FP_MODE_NONE for interupt handlers.
2002-06-18 Vladimir Makarov <vmakarov@redhat.com>
* rtl.def (DEFINE_AUTOMATON): Add description of new options

1
gcc/config/sh/sh-protos.h
View file

@ -123,6 +123,7 @@ extern int initial_elimination_offset PARAMS ((int, int));
extern int fldi_ok PARAMS ((void));
extern int sh_pr_n_sets PARAMS ((void));
extern int sh_hard_regno_rename_ok PARAMS ((unsigned int, unsigned int));
extern int sh_cfun_interrupt_handler_p (void);
#ifdef HARD_CONST
extern void fpscr_set_from_mem PARAMS ((int, HARD_REG_SET));

39
gcc/config/sh/sh.c
View file

@ -341,25 +341,13 @@ print_operand (stream, x, code)
fprintf (stream, "%s", LOCAL_LABEL_PREFIX);
break;
case '@':
{
int interrupt_handler;
if ((lookup_attribute
("interrupt_handler",
DECL_ATTRIBUTES (current_function_decl)))
!= NULL_TREE)
interrupt_handler = 1;
else
interrupt_handler = 0;
if (trap_exit)
fprintf (stream, "trapa #%d", trap_exit);
else if (interrupt_handler)
else if (sh_cfun_interrupt_handler_p ())
fprintf (stream, "rte");
else
fprintf (stream, "rts");
break;
}
case '#':
/* Output a nop if there's nothing in the delay slot. */
if (dbr_sequence_length () == 0)
@ -4364,13 +4352,7 @@ calc_live_regs (count_ptr, live_regs_mask)
int interrupt_handler;
int pr_live;
if ((lookup_attribute
("interrupt_handler",
DECL_ATTRIBUTES (current_function_decl)))
!= NULL_TREE)
interrupt_handler = 1;
else
interrupt_handler = 0;
interrupt_handler = sh_cfun_interrupt_handler_p ();
for (count = 0; 32 * count < FIRST_PSEUDO_REGISTER; count++)
live_regs_mask[count] = 0;
@ -4489,10 +4471,7 @@ sh_expand_prologue ()
int d_rounding = 0;
int save_flags = target_flags;
current_function_interrupt
= lookup_attribute ("interrupt_handler",
DECL_ATTRIBUTES (current_function_decl))
!= NULL_TREE;
current_function_interrupt = sh_cfun_interrupt_handler_p ();
/* We have pretend args if we had an object sent partially in registers
and partially on the stack, e.g. a large structure. */
@ -5747,6 +5726,13 @@ sh_handle_trap_exit_attribute (node, name, args, flags, no_add_attrs)
return NULL_TREE;
}
int
sh_cfun_interrupt_handler_p (void)
{
return (lookup_attribute ("interrupt_handler",
DECL_ATTRIBUTES (current_function_decl))
!= NULL_TREE);
}
/* Predicates used by the templates. */
@ -6712,10 +6698,7 @@ sh_hard_regno_rename_ok (old_reg, new_reg)
saved by the prologue, even if they would normally be
call-clobbered. */
if ((lookup_attribute ("interrupt_handler",
DECL_ATTRIBUTES (current_function_decl))
!= NULL_TREE)
&& !regs_ever_live[new_reg])
if (sh_cfun_interrupt_handler_p () && !regs_ever_live[new_reg])
return 0;
return 1;

4
gcc/config/sh/sh.h
View file

@ -3251,7 +3251,9 @@ extern struct rtx_def *fpscr_rtx;
#define OPTIMIZE_MODE_SWITCHING(ENTITY) TARGET_SH4
#define NORMAL_MODE(ENTITY) \
(TARGET_FPU_SINGLE ? FP_MODE_SINGLE : FP_MODE_DOUBLE)
(sh_cfun_interrupt_handler_p () ? FP_MODE_NONE \
: TARGET_FPU_SINGLE ? FP_MODE_SINGLE \
: FP_MODE_DOUBLE)
#define EPILOGUE_USES(REGNO) ((TARGET_SH3E || TARGET_SH4) \
&& (REGNO) == FPSCR_REG)