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| author | Aldy Hernandez <aldyh@redhat.com> | 2002-11-04 16:58:39 +0000 |
|---|---|---|
| committer | Aldy Hernandez <aldyh@gcc.gnu.org> | 2002-11-04 16:58:39 +0000 |
| commit | cff9f8d50930e9e8dd627c92ce5255323576ed02 (patch) | |
| tree | 9864774f05d9aef4abaed8431d0fa7b660a6a998 /gcc/config/alpha | |
| parent | f1c129e309fc1681abecfd655bafa9318306bbb8 (diff) | |
| download | gcc-cff9f8d50930e9e8dd627c92ce5255323576ed02.tar.gz | |
hard-reg-set.h (REG_CANNOT_CHANGE_MODE_P): New.
2002-11-04 Aldy Hernandez <aldyh@redhat.com>
* hard-reg-set.h (REG_CANNOT_CHANGE_MODE_P): New.
* config/rs6000/rs6000.h (CLASS_CANNOT_CHANGE_MODE_P): Remove.
(CLASS_CANNOT_CHANGE_MODE): Remove.
(CANNOT_CHANGE_MODE_CLASS): New.
* config/alpha/alpha.h: Same.
* config/ia64/ia64.h: Same.
* config/mips/mips.h: Same.
* config/s390/s390.h: Same.
* config/sh/sh.h: Same.
* config/pa/pa64-regs.h: Same.
* config/sh/sh-protos.h (sh_cannot_change_mode_class): Add prototype.
* config/sh/sh.c (sh_cannot_change_mode_class): New.
* config/mips/mips-protos.h (mips_cannot_change_mode_class): Add
prototype.
* config/mips/mips.c (mips_cannot_change_mode_class): New.
* doc/tm.texi (Register Classes): Remove
CLASS_CANNOT_CHANGE_MODE and CLASS_CANNOT_CHANGE_MODE_P.
Document CANNOT_CHANGE_MODE_CLASS.
* reload.c (push_reload): Use CANNOT_CHANGE_MODE_CLASS.
(push_reload): Same.
* simplify-rtx.c (simplify_subreg): Same.
* reload1.c (choose_reload_regs): Same.
* recog.c (register_operand): Same.
* regrename.c (mode_change_ok): Change to use new
CANNOT_CHANGE_MODE_CLASS infrastructure.
* regclass.c (cannot_change_mode_set_regs): New.
Declare subregs_of_mode.
(regclass): Use subregs_of_mode.
Remove references to reg_changes_mode.
(init_reg_sets_1): Remove class_can_change_mode and
reg_changes_mode code.
(invalid_mode_change_p): New.
(dump_regclass): Use invalid_mode_change_p instead of
class_can_change_mode.
(regclass): Same.
(record_operand_costs): Do not set reg_changes_mode.
* local-alloc.c (struct qty): Remove changes_mode field.
(alloc_qty): Remove changes_mode initialization.
(update_qty_class): Remove set of changes_mode.
(find_free_reg): Use subregs_of_mode.
* global.c (find_reg): Use subregs_of_mode info.
* rtl.h (cannot_change_mode_set_regs): New prototype.
(invalid_mode_change_p): Same.
(REG_CANNOT_CHANGE_MODE_P): New macro.
* flow.c (mark_used_regs): Calculate subregs_of_mode. Remove
REG_CHANGES_MODE.
(life_analysis): Clear subregs_of_mode.
* combine.c (subst): Pass class to CLASS_CANNOT_CHANGE_MODE_P.
Remove use of CLASS_CANNOT_CHANGE_MODE.
(simplify_set): Same.
(gen_lowpart_for_combine): Calculate subregs_of_mode. Remove
REG_CHANGES_MODE.
* regs.h: Add extern for subregs_of_mode;
Include hard-reg-set and basic-block.
(REG_CHANGES_MODE): Delete.
From-SVN: r58794
Diffstat (limited to 'gcc/config/alpha')
| -rw-r--r-- | gcc/config/alpha/alpha.h | 11 |
1 files changed, 3 insertions, 8 deletions
diff --git a/gcc/config/alpha/alpha.h b/gcc/config/alpha/alpha.h index 39973770d71..9e39a40395b 100644 --- a/gcc/config/alpha/alpha.h +++ b/gcc/config/alpha/alpha.h @@ -857,15 +857,10 @@ enum reg_class { #define CLASS_MAX_NREGS(CLASS, MODE) \ ((GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) / UNITS_PER_WORD) -/* If defined, gives a class of registers that cannot be used as the - operand of a SUBREG that changes the mode of the object illegally. */ +/* Return the class of registers that cannot change mode from FROM to TO. */ -#define CLASS_CANNOT_CHANGE_MODE FLOAT_REGS - -/* Defines illegal mode changes for CLASS_CANNOT_CHANGE_MODE. */ - -#define CLASS_CANNOT_CHANGE_MODE_P(FROM,TO) \ - (GET_MODE_SIZE (FROM) != GET_MODE_SIZE (TO)) +#define CANNOT_CHANGE_MODE_CLASS(FROM, TO) \ + (GET_MODE_SIZE (FROM) != GET_MODE_SIZE (TO) ? FLOAT_REGS : NO_REGS) /* Define the cost of moving between registers of various classes. Moving between FLOAT_REGS and anything else except float regs is expensive. |