diff options
| author | rth <rth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2000-06-13 21:47:44 +0000 |
|---|---|---|
| committer | rth <rth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2000-06-13 21:47:44 +0000 |
| commit | c5af420ec97dd94ae5687cdba874f25f64cd6660 (patch) | |
| tree | 18a58d10aaf4181b83524ed496b484df5ceed88e /gcc/reload1.c | |
| parent | d2a6ef1c68ee7ca2c078facde9bf04ec194f12a4 (diff) | |
| download | gcc-c5af420ec97dd94ae5687cdba874f25f64cd6660.tar.gz | |
* combine.c (subst): Use CLASS_CANNOT_CHANGE_MODE and
CLASS_CANNOT_CHANGE_MODE_P instead of CLASS_CANNOT_CHANGE_SIZE
and hard-coded tests.
(simplify_set): Likewise.
(gen_lowpart_for_combine): Likewise.
* emit-rtl.c (gen_lowpart_common): Likewise.
* global.c (find_reg): Likewise.
* local-alloc.c (find_free_reg): Likewise.
* recog.c (register_operand): Likewise.
* regclass.c (init_reg_sets_1): Likewise.
(record_operand_costs, regclass): Likewise.
* reload.c (push_reload): Likewise.
* reload1.c (choose_reload_regs): Likewise.
* flow.c (mark_used_regs): Conditionally set REG_CHANGES_MODE.
* local-alloc.c (struct qty): Rename changes_size to changes_mode.
Update all references.
* regs.h (struct reg_info_def): Likewise.
(REG_CHANGES_MODE): Rename from REG_CHANGES_SIZE.
* tm.texi (CLASS_CANNOT_CHANGE_MODE): Document.
(CLASS_CANNOT_CHANGE_MODE_P): Likewise.
* config/alpha/alpha.h (CLASS_CANNOT_CHANGE_MODE): Rename.
(CLASS_CANNOT_CHANGE_MODE_P): New.
* config/mips/mips.h: Likewise.
* config/pa/pa32-regs.h: Likewise.
* config/pa/pa64-regs.h: Likewise.
* config/rs6000/rs6000.h: Likewise.
* config/sh/sh.h: Likewise.
* config/ia64/ia64.h (CLASS_CANNOT_CHANGE_MODE): New.
(CLASS_CANNOT_CHANGE_MODE_P): New.
* config/avr/avr.h (CLASS_CANNOT_CHANGE_SIZE): Remove dead code.
* config/d30v/d30v.h: Likewise.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@34526 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/reload1.c')
| -rw-r--r-- | gcc/reload1.c | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/gcc/reload1.c b/gcc/reload1.c index 6f73aeaf13a..4949b89362f 100644 --- a/gcc/reload1.c +++ b/gcc/reload1.c @@ -5305,20 +5305,25 @@ choose_reload_regs (chain) { enum reg_class class = rld[r].class, last_class; rtx last_reg = reg_last_reload_reg[regno]; + enum machine_mode need_mode; i = REGNO (last_reg) + word; last_class = REGNO_REG_CLASS (i); + + need_mode = smallest_mode_for_size ((word+1) * UNITS_PER_WORD, + GET_MODE_CLASS (mode)); + if ( -#ifdef CLASS_CANNOT_CHANGE_SIZE +#ifdef CLASS_CANNOT_CHANGE_MODE (TEST_HARD_REG_BIT - (reg_class_contents[CLASS_CANNOT_CHANGE_SIZE], i) - ? (GET_MODE_SIZE (GET_MODE (last_reg)) - == GET_MODE_SIZE (mode) + word * UNITS_PER_WORD) + (reg_class_contents[(int) CLASS_CANNOT_CHANGE_MODE], i) + ? ! CLASS_CANNOT_CHANGE_MODE_P (GET_MODE (last_reg), + need_mode) : (GET_MODE_SIZE (GET_MODE (last_reg)) - >= GET_MODE_SIZE (mode) + word * UNITS_PER_WORD)) + >= GET_MODE_SIZE (need_mode))) #else (GET_MODE_SIZE (GET_MODE (last_reg)) - >= GET_MODE_SIZE (mode) + word * UNITS_PER_WORD) + >= GET_MODE_SIZE (need_mode)) #endif && reg_reloaded_contents[i] == regno && TEST_HARD_REG_BIT (reg_reloaded_valid, i) |