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regclass.c (choose_hard_reg_mode): Add third argument. 

* regclass.c (choose_hard_reg_mode): Add third argument.
	Changed all callers.
	* rtl.h (choose_hard_reg_mode): Update declaration.
	* dwarf2out.c (expand_builtin_init_dwarf_reg_sizes):
	Take HARD_REGNO_CALL_PART_CLOBBERED into account.

From-SVN: r69234
This commit is contained in:
J"orn Rennecke 2003-07-11 14:09:29 +00:00 committed by Joern Rennecke
parent 7efa3e22e5
commit fee226d25f
6 changed files with 31 additions and 12 deletions
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8
gcc/ChangeLog
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@ -1,3 +1,11 @@
2003-07-11 J"orn Rennecke <joern.rennecke@superh.com>
* regclass.c (choose_hard_reg_mode): Add third argument.
Changed all callers.
* rtl.h (choose_hard_reg_mode): Update declaration.
* dwarf2out.c (expand_builtin_init_dwarf_reg_sizes):
Take HARD_REGNO_CALL_PART_CLOBBERED into account.
2003-07-11 Geoffrey Keating <geoffk@apple.com>
* c-decl.c (finish_decl): Handle 'used' here...

2
gcc/config/i386/i386.h
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@ -1135,7 +1135,7 @@ do { \
#define HARD_REGNO_CALLER_SAVE_MODE(REGNO, NREGS, MODE) \
(CC_REGNO_P (REGNO) ? VOIDmode \
: (MODE) == VOIDmode && (NREGS) != 1 ? VOIDmode \
: (MODE) == VOIDmode ? choose_hard_reg_mode ((REGNO), (NREGS)) \
: (MODE) == VOIDmode ? choose_hard_reg_mode ((REGNO), (NREGS), false)\
: (MODE) == HImode && !TARGET_PARTIAL_REG_STALL ? SImode \
: (MODE) == QImode && (REGNO) >= 4 && !TARGET_64BIT ? SImode \
: (MODE))

6
gcc/dwarf2out.c
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@ -448,8 +448,12 @@ expand_builtin_init_dwarf_reg_sizes (tree address)
if (DWARF_FRAME_REGNUM (i) < DWARF_FRAME_REGISTERS)
{
HOST_WIDE_INT offset = DWARF_FRAME_REGNUM (i) * GET_MODE_SIZE (mode);
HOST_WIDE_INT size = GET_MODE_SIZE (reg_raw_mode[i]);
enum machine_mode save_mode = reg_raw_mode[i];
HOST_WIDE_INT size;
if (HARD_REGNO_CALL_PART_CLOBBERED (i, save_mode))
save_mode = choose_hard_reg_mode (i, 1, true);
size = GET_MODE_SIZE (save_mode);
if (offset < 0)
continue;

22
gcc/regclass.c
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@ -553,7 +553,7 @@ init_reg_modes (void)
for (i = 0; i < FIRST_PSEUDO_REGISTER; i++)
{
reg_raw_mode[i] = choose_hard_reg_mode (i, 1);
reg_raw_mode[i] = choose_hard_reg_mode (i, 1, false);
/* If we couldn't find a valid mode, just use the previous mode.
??? One situation in which we need to do this is on the mips where
@ -653,11 +653,12 @@ memory_move_secondary_cost (enum machine_mode mode, enum reg_class class, int in
#endif
/* Return a machine mode that is legitimate for hard reg REGNO and large
enough to save nregs. If we can't find one, return VOIDmode. */
enough to save nregs. If we can't find one, return VOIDmode.
If CALL_SAVED is true, only consider modes that are call saved. */
enum machine_mode
choose_hard_reg_mode (unsigned int regno ATTRIBUTE_UNUSED,
unsigned int nregs)
unsigned int nregs, bool call_saved)
{
unsigned int /* enum machine_mode */ m;
enum machine_mode found_mode = VOIDmode, mode;
@ -670,7 +671,8 @@ choose_hard_reg_mode (unsigned int regno ATTRIBUTE_UNUSED,
mode != VOIDmode;
mode = GET_MODE_WIDER_MODE (mode))
if ((unsigned) HARD_REGNO_NREGS (regno, mode) == nregs
&& HARD_REGNO_MODE_OK (regno, mode))
&& HARD_REGNO_MODE_OK (regno, mode)
&& (! call_saved || ! HARD_REGNO_CALL_PART_CLOBBERED (regno, mode)))
found_mode = mode;
if (found_mode != VOIDmode)
@ -680,7 +682,8 @@ choose_hard_reg_mode (unsigned int regno ATTRIBUTE_UNUSED,
mode != VOIDmode;
mode = GET_MODE_WIDER_MODE (mode))
if ((unsigned) HARD_REGNO_NREGS (regno, mode) == nregs
&& HARD_REGNO_MODE_OK (regno, mode))
&& HARD_REGNO_MODE_OK (regno, mode)
&& (! call_saved || ! HARD_REGNO_CALL_PART_CLOBBERED (regno, mode)))
found_mode = mode;
if (found_mode != VOIDmode)
@ -690,7 +693,8 @@ choose_hard_reg_mode (unsigned int regno ATTRIBUTE_UNUSED,
mode != VOIDmode;
mode = GET_MODE_WIDER_MODE (mode))
if ((unsigned) HARD_REGNO_NREGS (regno, mode) == nregs
&& HARD_REGNO_MODE_OK (regno, mode))
&& HARD_REGNO_MODE_OK (regno, mode)
&& (! call_saved || ! HARD_REGNO_CALL_PART_CLOBBERED (regno, mode)))
found_mode = mode;
if (found_mode != VOIDmode)
@ -700,7 +704,8 @@ choose_hard_reg_mode (unsigned int regno ATTRIBUTE_UNUSED,
mode != VOIDmode;
mode = GET_MODE_WIDER_MODE (mode))
if ((unsigned) HARD_REGNO_NREGS (regno, mode) == nregs
&& HARD_REGNO_MODE_OK (regno, mode))
&& HARD_REGNO_MODE_OK (regno, mode)
&& (! call_saved || ! HARD_REGNO_CALL_PART_CLOBBERED (regno, mode)))
found_mode = mode;
if (found_mode != VOIDmode)
@ -711,7 +716,8 @@ choose_hard_reg_mode (unsigned int regno ATTRIBUTE_UNUSED,
{
mode = (enum machine_mode) m;
if ((unsigned) HARD_REGNO_NREGS (regno, mode) == nregs
&& HARD_REGNO_MODE_OK (regno, mode))
&& HARD_REGNO_MODE_OK (regno, mode)
&& (! call_saved || ! HARD_REGNO_CALL_PART_CLOBBERED (regno, mode)))
return mode;
}

2
gcc/regs.h
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@ -210,7 +210,7 @@ extern int caller_save_needed;
/* Select a register mode required for caller save of hard regno REGNO. */
#ifndef HARD_REGNO_CALLER_SAVE_MODE
#define HARD_REGNO_CALLER_SAVE_MODE(REGNO, NREGS, MODE) \
choose_hard_reg_mode (REGNO, NREGS)
choose_hard_reg_mode (REGNO, NREGS, false)
#endif
/* Registers that get partially clobbered by a call in a given mode.

3
gcc/rtl.h
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@ -1602,7 +1602,8 @@ extern rtx avoid_constant_pool_reference (rtx);
extern rtx gen_mem_addressof (rtx, tree, int);
/* In regclass.c */
extern enum machine_mode choose_hard_reg_mode (unsigned int, unsigned int);
extern enum machine_mode choose_hard_reg_mode (unsigned int, unsigned int,
bool);
/* In emit-rtl.c */
extern rtx set_unique_reg_note (rtx, enum reg_note, rtx);