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regclass.c (dump_regclass): New function.

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* regclass.c (dump_regclass): New function.
	(regclass): New parameter DUMP, call DUMP_REGCLASS.
	* toplev.c (rest_of_compilation): Opent lreg dump file before regclass,
	pass rtl_dump_file to regclass.
	* rtl.h (regclass): Update prototype.

From-SVN: r30600
This commit is contained in:
Jan Hubicka 1999-11-21 12:33:17 +00:00 committed by Jan Hubicka
parent eeae2112fa
commit 246fd41f2d
4 changed files with 41 additions and 6 deletions
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8
gcc/ChangeLog
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@ -1,3 +1,11 @@
Fro Nov 19 05:48:45 CET 1999 Jan Hubicka <hubicka@freesoft.cz>
* regclass.c (dump_regclass): New function.
(regclass): New parameter DUMP, call DUMP_REGCLASS.
* toplev.c (rest_of_compilation): Opent lreg dump file before regclass,
pass rtl_dump_file to regclass.
* rtl.h (regclass): Update prototype.
Sun Nov 21 17:11:13 1999 Geoffrey Keating <geoffk@cygnus.com>
* varasm.c (output_constructor): Solve problem with long long

28
gcc/regclass.c
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@ -696,6 +696,7 @@ static int loop_depth;
static int loop_cost;
static rtx scan_one_insn PROTO((rtx, int));
static void dump_regclass PROTO((FILE *));
static void record_reg_classes PROTO((int, int, rtx *, enum machine_mode *,
char *, const char **, rtx));
static int copy_cost PROTO((rtx, enum machine_mode,
@ -744,6 +745,28 @@ regclass_init ()
before regclass is run. */
prefclass = 0;
}
/* Dump register costs. */
void
dump_regclass (dump)
FILE *dump;
{
static const char *const reg_class_names[] = REG_CLASS_NAMES;
int i;
for (i = FIRST_PSEUDO_REGISTER; i < max_regno; i++)
{
enum reg_class class;
if (REG_N_REFS (i))
{
fprintf (dump, ";; Register %i costs:", i);
for (class = 0; class < N_REG_CLASSES; class++)
fprintf (dump, " %s:%i", reg_class_names[(int) class],
costs[i].cost[class]);
fprintf (dump, " MEM:%i\n\n", costs[i].mem_cost);
}
}
}
/* Subroutine of regclass, processes one insn INSN. Scan it and record each
time it would save code to put a certain register in a certain class.
@ -951,9 +974,10 @@ scan_one_insn (insn, pass)
This pass comes just before local register allocation. */
void
regclass (f, nregs)
regclass (f, nregs, dump)
rtx f;
int nregs;
FILE *dump;
{
register rtx insn;
register int i;
@ -1109,6 +1133,8 @@ regclass (f, nregs)
}
}
if (dump)
dump_regclass (dump);
#ifdef FORBIDDEN_INC_DEC_CLASSES
free (in_inc_dec);
#endif

2
gcc/rtl.h
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@ -1571,7 +1571,7 @@ extern void init_regs PROTO ((void));
extern void init_reg_sets PROTO ((void));
extern void regset_release_memory PROTO ((void));
extern void regclass_init PROTO ((void));
extern void regclass PROTO ((rtx, int));
extern void regclass PROTO ((rtx, int, FILE *));
extern void reg_scan PROTO ((rtx, int, int));
extern void reg_scan_update PROTO ((rtx, rtx, int));
extern void fix_register PROTO ((const char *, int, int));

9
gcc/toplev.c
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@ -4032,7 +4032,7 @@ rest_of_compilation (decl)
{
TIMEVAR (flow_time,
{
regclass (insns, max_reg_num ());
regclass (insns, max_reg_num (), NULL);
stupid_life_analysis (insns, max_reg_num (),
rtl_dump_file);
});
@ -4146,6 +4146,9 @@ rest_of_compilation (decl)
epilogue thus changing register elimination offsets. */
current_function_is_leaf = leaf_function_p ();
if (local_reg_dump)
open_dump_file (".12.lreg", decl_printable_name (decl, 2));
/* Unless we did stupid register allocation,
allocate pseudo-regs that are used only within 1 basic block.
@ -4159,7 +4162,7 @@ rest_of_compilation (decl)
of life info during sched. */
if (! flag_schedule_insns)
recompute_reg_usage (insns, ! optimize_size);
regclass (insns, max_reg_num ());
regclass (insns, max_reg_num (), rtl_dump_file);
rebuild_label_notes_after_reload = local_alloc ();
});
else
@ -4169,8 +4172,6 @@ rest_of_compilation (decl)
if (local_reg_dump)
{
open_dump_file (".12.lreg", decl_printable_name (decl, 2));
TIMEVAR (dump_time, dump_flow_info (rtl_dump_file));
TIMEVAR (dump_time, dump_local_alloc (rtl_dump_file));