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loop-iv.c: Include df.h and hashtab.h.

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* loop-iv.c: Include df.h and hashtab.h.
	(enum iv_grd_result): New enum.
	(DF_REF_IV, DF_REF_IV_SET): New macros.
	(struct biv_entry): New.
	(df, bivs): New global variables.
	(struct insn_info, insn_info, last_def, bivs, max_insn_no, max_reg_no,
	assign_luids, mark_sets, kill_sets, mark_single_set, simple_set_p):
	Removed.
	(clear_iv_info, latch_dominating_def, record_iv, iv_analyze_expr,
	iv_analyze_result, iv_analyze_def, biv_hash, biv_eq,
	analyzed_for_bivness_p, record_biv): New functions.
	(iv_analysis_loop_init, iv_get_reaching_def, simple_reg_p,
	get_biv_step_1, get_biv_step, iv_analyze_biv, iv_analyze_op,
	iv_analyze, biv_p, iv_analysis_done): Work with df representation of
	UD chains.
	(iv_constant, iv_subreg, iv_extend, iv_mult, iv_shift): Do not set
	analysed.
	(iv_number_of_iterations): Use new interface to iv analysis.
	* loop-unroll.c: Do not include varray.h.
	(analyze_iv_to_split_insn): Use new interface to iv
	analysis.
	* loop-unswitch.c (may_unswitch_on): Ditto.
	* df.c (df_bitmaps_free): Only work for bbs for that structures are
	allocated.
	(df_bb_modify): Realloc tables to the new index.
	(df_find_use): New function.
	* df.h (df_find_use): Declare.
	* optabs.c (expand_unop): Make the mode of the REG_EQUAL node be
	outmode.
	* cfgloop.h (struct rtx_iv): Remove analysed field.
	(iv_get_reaching_def): Removed.
	(iv_analyze_result, iv_analyze_expr, iv_current_loop_df): Declare.
	* Makefile.in (loop-unroll.o): Remove VARRAY_H dependency.
	(loop-iv.o): Add df.h and hashtab.h dependency.
	* df-problems.c (df_ru_alloc, df_rd_alloc): Fix memory reallocation.

From-SVN: r110005
This commit is contained in:
Zdenek Dvorak 2006-01-20 01:46:37 +01:00 committed by Zdenek Dvorak
parent b04c90638b
commit 03fd221518
8 changed files with 546 additions and 520 deletions
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38
gcc/ChangeLog
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@ -1,3 +1,41 @@
2006-01-20 Zdenek Dvorak <dvorakz@suse.cz>
* loop-iv.c: Include df.h and hashtab.h.
(enum iv_grd_result): New enum.
(DF_REF_IV, DF_REF_IV_SET): New macros.
(struct biv_entry): New.
(df, bivs): New global variables.
(struct insn_info, insn_info, last_def, bivs, max_insn_no, max_reg_no,
assign_luids, mark_sets, kill_sets, mark_single_set, simple_set_p):
Removed.
(clear_iv_info, latch_dominating_def, record_iv, iv_analyze_expr,
iv_analyze_result, iv_analyze_def, biv_hash, biv_eq,
analyzed_for_bivness_p, record_biv): New functions.
(iv_analysis_loop_init, iv_get_reaching_def, simple_reg_p,
get_biv_step_1, get_biv_step, iv_analyze_biv, iv_analyze_op,
iv_analyze, biv_p, iv_analysis_done): Work with df representation of
UD chains.
(iv_constant, iv_subreg, iv_extend, iv_mult, iv_shift): Do not set
analysed.
(iv_number_of_iterations): Use new interface to iv analysis.
* loop-unroll.c: Do not include varray.h.
(analyze_iv_to_split_insn): Use new interface to iv
analysis.
* loop-unswitch.c (may_unswitch_on): Ditto.
* df.c (df_bitmaps_free): Only work for bbs for that structures are
allocated.
(df_bb_modify): Realloc tables to the new index.
(df_find_use): New function.
* df.h (df_find_use): Declare.
* optabs.c (expand_unop): Make the mode of the REG_EQUAL node be
outmode.
* cfgloop.h (struct rtx_iv): Remove analysed field.
(iv_get_reaching_def): Removed.
(iv_analyze_result, iv_analyze_expr, iv_current_loop_df): Declare.
* Makefile.in (loop-unroll.o): Remove VARRAY_H dependency.
(loop-iv.o): Add df.h and hashtab.h dependency.
* df-problems.c (df_ru_alloc, df_rd_alloc): Fix memory reallocation.
2006-01-20 Alan Modra <amodra@bigpond.net.au>
* libgcc2.c (__floatdisf, __floatdidf): Don't use IBM Extended

4
gcc/Makefile.in
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@ -2431,7 +2431,7 @@ struct-equiv.o : struct-equiv.c $(CONFIG_H) $(SYSTEM_H) coretypes.h $(TM_H) \
$(REGS_H) $(EMIT_RTL_H)
loop-iv.o : loop-iv.c $(CONFIG_H) $(SYSTEM_H) $(RTL_H) $(BASIC_BLOCK_H) \
hard-reg-set.h $(CFGLOOP_H) $(EXPR_H) coretypes.h $(TM_H) $(OBSTACK_H) \
output.h intl.h
output.h intl.h $(DF_H) $(HASHTAB_H)
loop-invariant.o : loop-invariant.c $(CONFIG_H) $(SYSTEM_H) $(RTL_H) \
$(BASIC_BLOCK_H) hard-reg-set.h $(CFGLOOP_H) $(EXPR_H) coretypes.h \
$(TM_H) $(TM_P_H) $(FUNCTION_H) $(FLAGS_H) $(DF_H) $(OBSTACK_H) output.h \
@ -2447,7 +2447,7 @@ loop-unswitch.o : loop-unswitch.c $(CONFIG_H) $(SYSTEM_H) $(RTL_H) $(TM_H) \
output.h $(EXPR_H) coretypes.h $(TM_H) $(OBSTACK_H)
loop-unroll.o: loop-unroll.c $(CONFIG_H) $(SYSTEM_H) $(RTL_H) $(TM_H) \
$(BASIC_BLOCK_H) hard-reg-set.h $(CFGLOOP_H) $(CFGLAYOUT_H) $(PARAMS_H) \
output.h $(EXPR_H) coretypes.h $(TM_H) $(HASHTAB_H) $(RECOG_H) $(VARRAY_H) \
output.h $(EXPR_H) coretypes.h $(TM_H) $(HASHTAB_H) $(RECOG_H) \
$(OBSTACK_H)
dominance.o : dominance.c $(CONFIG_H) $(SYSTEM_H) coretypes.h $(TM_H) $(RTL_H) \
hard-reg-set.h $(BASIC_BLOCK_H) et-forest.h $(OBSTACK_H) toplev.h

7
gcc/cfgloop.h
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@ -352,9 +352,6 @@ struct rtx_iv
/* The mode the variable iterates in. */
enum machine_mode mode;
/* Whether we have already filled the remaining fields. */
unsigned analysed : 1;
/* Whether the first iteration needs to be handled specially. */
unsigned first_special : 1;
};
@ -404,12 +401,14 @@ struct niter_desc
};
extern void iv_analysis_loop_init (struct loop *);
extern rtx iv_get_reaching_def (rtx, rtx);
extern bool iv_analyze (rtx, rtx, struct rtx_iv *);
extern bool iv_analyze_result (rtx, rtx, struct rtx_iv *);
extern bool iv_analyze_expr (rtx, rtx, enum machine_mode, struct rtx_iv *);
extern rtx get_iv_value (struct rtx_iv *, rtx);
extern bool biv_p (rtx, rtx);
extern void find_simple_exit (struct loop *, struct niter_desc *);
extern void iv_analysis_done (void);
extern struct df *iv_current_loop_df (void);
extern struct niter_desc *get_simple_loop_desc (struct loop *loop);
extern void free_simple_loop_desc (struct loop *loop);

12
gcc/df-problems.c
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@ -369,12 +369,12 @@ df_ru_alloc (struct dataflow *dflow, bitmap blocks_to_rescan)
}
}
if (problem_data->use_sites_size > reg_size)
if (problem_data->use_sites_size < reg_size)
{
problem_data->use_sites
= xrealloc (problem_data->use_sites, reg_size *sizeof (bitmap));
memset (problem_data->use_sites, 0,
(reg_size - problem_data->use_sites_size) *sizeof (bitmap));
= xrealloc (problem_data->use_sites, reg_size * sizeof (bitmap));
memset (problem_data->use_sites + problem_data->use_sites_size, 0,
(reg_size - problem_data->use_sites_size) * sizeof (bitmap));
problem_data->use_sites_size = reg_size;
}
@ -876,11 +876,11 @@ df_rd_alloc (struct dataflow *dflow, bitmap blocks_to_rescan)
}
}
if (problem_data->def_sites_size > reg_size)
if (problem_data->def_sites_size < reg_size)
{
problem_data->def_sites
= xrealloc (problem_data->def_sites, reg_size *sizeof (bitmap));
memset (problem_data->def_sites, 0,
memset (problem_data->def_sites + problem_data->def_sites_size, 0,
(reg_size - problem_data->def_sites_size) *sizeof (bitmap));
problem_data->def_sites_size = reg_size;
}

995
gcc/loop-iv.c
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File diff suppressed because it is too large Load Diff

3
gcc/loop-unroll.c
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@ -33,7 +33,6 @@ Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
#include "expr.h"
#include "hashtab.h"
#include "recog.h"
#include "varray.h"
/* This pass performs loop unrolling and peeling. We only perform these
optimizations on innermost loops (with single exception) because
@ -1670,7 +1669,7 @@ analyze_iv_to_split_insn (rtx insn)
if (!biv_p (insn, dest))
return NULL;
ok = iv_analyze (insn, dest, &iv);
ok = iv_analyze_result (insn, dest, &iv);
gcc_assert (ok);
if (iv.step == const0_rtx

5
gcc/loop-unswitch.c
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@ -172,7 +172,7 @@ unswitch_loops (struct loops *loops)
static rtx
may_unswitch_on (basic_block bb, struct loop *loop, rtx *cinsn)
{
rtx test, at, insn, op[2], stest;
rtx test, at, op[2], stest;
struct rtx_iv iv;
unsigned i;
enum machine_mode mode;
@ -205,8 +205,7 @@ may_unswitch_on (basic_block bb, struct loop *loop, rtx *cinsn)
if (CONSTANT_P (op[i]))
continue;
insn = iv_get_reaching_def (at, op[i]);
if (!iv_analyze (insn, op[i], &iv))
if (!iv_analyze (at, op[i], &iv))
return NULL_RTX;
if (iv.step != const0_rtx
|| iv.first_special)

2
gcc/optabs.c
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@ -2721,7 +2721,7 @@ expand_unop (enum machine_mode mode, optab unoptab, rtx op0, rtx target,
target = gen_reg_rtx (outmode);
emit_libcall_block (insns, target, value,
gen_rtx_fmt_e (unoptab->code, mode, op0));
gen_rtx_fmt_e (unoptab->code, outmode, op0));
return target;
}