diff options
Diffstat (limited to 'contrib/gcc/reload.h')
| -rw-r--r-- | contrib/gcc/reload.h | 58 |
1 files changed, 20 insertions, 38 deletions
diff --git a/contrib/gcc/reload.h b/contrib/gcc/reload.h index 9a5e33c..6de5e84 100644 --- a/contrib/gcc/reload.h +++ b/contrib/gcc/reload.h @@ -1,6 +1,6 @@ /* Communication between reload.c and reload1.c. Copyright (C) 1987, 1991, 1992, 1993, 1994, 1995, 1997, 1998, - 1999, 2000, 2001, 2003 Free Software Foundation, Inc. + 1999, 2000, 2001, 2003, 2004 Free Software Foundation, Inc. This file is part of GCC. @@ -16,8 +16,8 @@ for more details. You should have received a copy of the GNU General Public License along with GCC; see the file COPYING. If not, write to the Free -Software Foundation, 59 Temple Place - Suite 330, Boston, MA -02111-1307, USA. */ +Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA +02110-1301, USA. */ /* If secondary reloads are the same for inputs and outputs, define those @@ -30,19 +30,10 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA SECONDARY_RELOAD_CLASS (CLASS, MODE, X) #endif -/* If either macro is defined, show that we need secondary reloads. */ -#if defined(SECONDARY_INPUT_RELOAD_CLASS) || defined(SECONDARY_OUTPUT_RELOAD_CLASS) -#define HAVE_SECONDARY_RELOADS -#endif - /* If MEMORY_MOVE_COST isn't defined, give it a default here. */ #ifndef MEMORY_MOVE_COST -#ifdef HAVE_SECONDARY_RELOADS #define MEMORY_MOVE_COST(MODE,CLASS,IN) \ (4 + memory_move_secondary_cost ((MODE), (CLASS), (IN))) -#else -#define MEMORY_MOVE_COST(MODE,CLASS,IN) 4 -#endif #endif extern int memory_move_secondary_cost (enum machine_mode, enum reg_class, int); @@ -164,10 +155,20 @@ extern struct reload rld[MAX_RELOADS]; extern int n_reloads; #endif +extern GTY (()) VEC(rtx,gc) *reg_equiv_memory_loc_vec; extern rtx *reg_equiv_constant; +extern rtx *reg_equiv_invariant; extern rtx *reg_equiv_memory_loc; extern rtx *reg_equiv_address; extern rtx *reg_equiv_mem; +extern rtx *reg_equiv_alt_mem_list; + +/* Element N is the list of insns that initialized reg N from its equivalent + constant or memory slot. */ +extern GTY((length("reg_equiv_init_size"))) rtx *reg_equiv_init; + +/* The size of the previous array, for GC purposes. */ +extern GTY(()) int reg_equiv_init_size; /* All the "earlyclobber" operands of the current insn are recorded here. */ @@ -192,13 +193,6 @@ extern char double_reg_address_ok; extern int num_not_at_initial_offset; -struct needs -{ - /* [0] is normal, [1] is nongroup. */ - short regs[2][N_REG_CLASSES]; - short groups[N_REG_CLASSES]; -}; - #if defined SET_HARD_REG_BIT && defined CLEAR_REG_SET /* This structure describes instructions which are relevant for reload. Apart from all regular insns, this also includes CODE_LABELs, since they @@ -228,9 +222,6 @@ struct insn_chain /* Indicates which registers have already been used for spills. */ HARD_REG_SET used_spill_regs; - /* Describe the needs for reload registers of this insn. */ - struct needs need; - /* Nonzero if find_reloads said the insn requires reloading. */ unsigned int need_reload:1; /* Nonzero if find_reloads needs to be run during reload_as_needed to @@ -254,6 +245,13 @@ extern void compute_use_by_pseudos (HARD_REG_SET *, regset); /* Functions from reload.c: */ +extern enum reg_class secondary_reload_class (bool, enum reg_class, + enum machine_mode, rtx); + +#ifdef GCC_INSN_CODES_H +extern enum reg_class scratch_reload_class (enum insn_code); +#endif + /* Return a memory location that will be used to copy X in mode MODE. If we haven't already made a location for this mode in this insn, call find_reloads_address on the location being returned. */ @@ -307,19 +305,9 @@ extern void move_replacements (rtx *x, rtx *y); Otherwise, return *LOC. */ extern rtx find_replacement (rtx *); -/* Return nonzero if register in range [REGNO, ENDREGNO) - appears either explicitly or implicitly in X - other than being stored into. */ -extern int refers_to_regno_for_reload_p (unsigned int, unsigned int, - rtx, rtx *); - /* Nonzero if modifying X will affect IN. */ extern int reg_overlap_mentioned_for_reload_p (rtx, rtx); -/* Return nonzero if anything in X contains a MEM. Look also for pseudo - registers. */ -extern int refers_to_mem_for_reload_p (rtx); - /* Check the insns before INSN to see if there is a suitable register containing the same value as GOAL. */ extern rtx find_equiv_reg (rtx, rtx, enum reg_class, int, short *, @@ -340,7 +328,6 @@ extern int push_reload (rtx, rtx, rtx *, rtx *, enum reg_class, extern void reload_cse_regs (rtx); /* Functions in reload1.c: */ -extern int reloads_conflict (int, int); /* Initialize the reload pass once per compilation. */ extern void init_reload (void); @@ -356,11 +343,6 @@ extern void mark_home_live (int); replacement (such as sp), plus an offset. */ extern rtx eliminate_regs (rtx, enum machine_mode, rtx); -/* Emit code to perform a reload from IN (which may be a reload register) to - OUT (which may also be a reload register). IN or OUT is from operand - OPNUM with reload type TYPE. */ -extern rtx gen_reload (rtx, rtx, int, enum reload_type); - /* Deallocate the reload register used by reload number R. */ extern void deallocate_reload_reg (int r); |
