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loop-init.c (rest_of_handle_loop2): Remove.

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* loop-init.c (rest_of_handle_loop2): Remove.
	(rtl_loop_init, rtl_loop_done, rtl_move_loop_invariants,
	rtl_unswitch, rtl_unroll_and_peel_loops, rtl_doloop): New functions.
	(pass_rtl_loop_init, pass_rtl_loop_done,
	pass_rtl_move_loop_invariants, pass_rtl_unswitch,
	pass_rtl_unroll_and_peel_loops, pass_rtl_doloop): New passes.
	* tree-ssa-loop.c (pass_loop, pass_loop_init, pass_loop_done,
	pass_unswitch): Rename to pass_tree_loop, pass_tree_loop_init,
	pass_tree_loop_done, and pass_tree_unswitch.
	(gate_loop): Rename to gate_tree_loop.
	* passes.c (init_optimization_passes): Update for renamed tree
	loop passes.  Add the new loop2 passes as subpasses of loop2.
	* tree-pass.h: Add extern declarations for the new loop2 subpasses.
	Update for the renamed tree loop passes.

From-SVN: r102149
This commit is contained in:
Steven Bosscher 2005-07-19 00:44:45 +00:00 committed by Steven Bosscher
parent 067b91227a
commit 9fa264571d
5 changed files with 233 additions and 51 deletions
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17
gcc/ChangeLog
View File

@ -1,3 +1,20 @@
2005-07-19 Steven Bosscher <stevenb@suse.de>
* loop-init.c (rest_of_handle_loop2): Remove.
(rtl_loop_init, rtl_loop_done, rtl_move_loop_invariants,
rtl_unswitch, rtl_unroll_and_peel_loops, rtl_doloop): New functions.
(pass_rtl_loop_init, pass_rtl_loop_done,
pass_rtl_move_loop_invariants, pass_rtl_unswitch,
pass_rtl_unroll_and_peel_loops, pass_rtl_doloop): New passes.
* tree-ssa-loop.c (pass_loop, pass_loop_init, pass_loop_done,
pass_unswitch): Rename to pass_tree_loop, pass_tree_loop_init,
pass_tree_loop_done, and pass_tree_unswitch.
(gate_loop): Rename to gate_tree_loop.
* passes.c (init_optimization_passes): Update for renamed tree
loop passes. Add the new loop2 passes as subpasses of loop2.
* tree-pass.h: Add extern declarations for the new loop2 subpasses.
Update for the renamed tree loop passes.
2005-07-18 Ian Lance Taylor <ian@airs.com>
PR middle-end/22057

217
gcc/loop-init.c
View File

@ -1,4 +1,4 @@
/* Loop optimizer initialization routines.
/* Loop optimizer initialization routines and RTL loop optimization passes.
Copyright (C) 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
This file is part of GCC.
@ -32,7 +32,9 @@ Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
#include "timevar.h"
#include "flags.h"
/* Initialize loop optimizer. */
/* Initialize loop optimizer. This is used by the tree and RTL loop
optimizers. */
struct loops *
loop_optimizer_init (FILE *dumpfile)
@ -119,7 +121,11 @@ loop_optimizer_finalize (struct loops *loops, FILE *dumpfile)
verify_flow_info ();
#endif
}
/* Gate for the RTL loop superpass. The actual passes are subpasses.
See passes.c for more on that. */
static bool
gate_handle_loop2 (void)
{
@ -131,45 +137,64 @@ gate_handle_loop2 (void)
|| flag_branch_on_count_reg));
}
/* Perform loop optimizations. It might be better to do them a bit
sooner, but we want the profile feedback to work more
efficiently. */
static void
rest_of_handle_loop2 (void)
struct tree_opt_pass pass_loop2 =
{
struct loops *loops;
basic_block bb;
"loop2", /* name */
gate_handle_loop2, /* gate */
NULL, /* execute */
NULL, /* sub */
NULL, /* next */
0, /* static_pass_number */
TV_LOOP, /* tv_id */
0, /* properties_required */
0, /* properties_provided */
0, /* properties_destroyed */
0, /* todo_flags_start */
TODO_dump_func |
TODO_ggc_collect, /* todo_flags_finish */
'L' /* letter */
};
/* Initialization of the RTL loop passes. */
static void
rtl_loop_init (void)
{
if (dump_file)
dump_flow_info (dump_file);
/* Initialize structures for layout changes. */
cfg_layout_initialize (0);
loops = loop_optimizer_init (dump_file);
current_loops = loop_optimizer_init (dump_file);
}
if (loops)
{
/* The optimizations: */
if (flag_move_loop_invariants)
move_loop_invariants (loops);
struct tree_opt_pass pass_rtl_loop_init =
{
"loopinit", /* name */
NULL, /* gate */
rtl_loop_init, /* execute */
NULL, /* sub */
NULL, /* next */
0, /* static_pass_number */
TV_LOOP, /* tv_id */
0, /* properties_required */
0, /* properties_provided */
0, /* properties_destroyed */
0, /* todo_flags_start */
TODO_dump_func, /* todo_flags_finish */
'L' /* letter */
};
if (flag_unswitch_loops)
unswitch_loops (loops);
/* Finalization of the RTL loop passes. */
static void
rtl_loop_done (void)
{
basic_block bb;
if (flag_peel_loops || flag_unroll_loops)
unroll_and_peel_loops (loops,
(flag_peel_loops ? UAP_PEEL : 0) |
(flag_unroll_loops ? UAP_UNROLL : 0) |
(flag_unroll_all_loops ? UAP_UNROLL_ALL : 0));
#ifdef HAVE_doloop_end
if (flag_branch_on_count_reg && HAVE_doloop_end)
doloop_optimize_loops (loops);
#endif /* HAVE_doloop_end */
loop_optimizer_finalize (loops, dump_file);
}
if (current_loops)
loop_optimizer_finalize (current_loops, dump_file);
free_dominance_info (CDI_DOMINATORS);
@ -184,13 +209,15 @@ rest_of_handle_loop2 (void)
reg_scan (get_insns (), max_reg_num ());
if (dump_file)
dump_flow_info (dump_file);
current_loops = NULL;
}
struct tree_opt_pass pass_loop2 =
struct tree_opt_pass pass_rtl_loop_done =
{
"loop2", /* name */
gate_handle_loop2, /* gate */
rest_of_handle_loop2, /* execute */
"loopdone", /* name */
NULL, /* gate */
rtl_loop_done, /* execute */
NULL, /* sub */
NULL, /* next */
0, /* static_pass_number */
@ -199,8 +226,126 @@ struct tree_opt_pass pass_loop2 =
0, /* properties_provided */
0, /* properties_destroyed */
0, /* todo_flags_start */
TODO_dump_func |
TODO_ggc_collect, /* todo_flags_finish */
TODO_dump_func, /* todo_flags_finish */
'L' /* letter */
};
/* Loop invariant code motion. */
static void
rtl_move_loop_invariants (void)
{
if (current_loops && flag_move_loop_invariants)
move_loop_invariants (current_loops);
}
struct tree_opt_pass pass_rtl_move_loop_invariants =
{
"loop_invariant", /* name */
NULL, /* gate */
rtl_move_loop_invariants, /* execute */
NULL, /* sub */
NULL, /* next */
0, /* static_pass_number */
TV_LOOP, /* tv_id */
0, /* properties_required */
0, /* properties_provided */
0, /* properties_destroyed */
0, /* todo_flags_start */
TODO_dump_func, /* todo_flags_finish */
'L' /* letter */
};
/* Loop unswitching for RTL. */
static void
rtl_unswitch (void)
{
if (current_loops && flag_unswitch_loops)
unswitch_loops (current_loops);
}
struct tree_opt_pass pass_rtl_unswitch =
{
"loop_unswitch", /* name */
NULL, /* gate */
rtl_unswitch, /* execute */
NULL, /* sub */
NULL, /* next */
0, /* static_pass_number */
TV_LOOP, /* tv_id */
0, /* properties_required */
0, /* properties_provided */
0, /* properties_destroyed */
0, /* todo_flags_start */
TODO_dump_func, /* todo_flags_finish */
'L' /* letter */
};
/* Loop unswitching for RTL. */
static void
rtl_unroll_and_peel_loops (void)
{
if (current_loops
&& (flag_peel_loops || flag_unroll_loops || flag_unroll_all_loops))
{
int flags = 0;
if (flag_peel_loops)
flags |= UAP_PEEL;
if (flag_unroll_loops)
flags |= UAP_UNROLL;
if (flag_unroll_all_loops)
flags |= UAP_UNROLL_ALL;
unroll_and_peel_loops (current_loops, flags);
}
}
struct tree_opt_pass pass_rtl_unroll_and_peel_loops =
{
"loop_unroll", /* name */
NULL, /* gate */
rtl_unroll_and_peel_loops, /* execute */
NULL, /* sub */
NULL, /* next */
0, /* static_pass_number */
TV_LOOP, /* tv_id */
0, /* properties_required */
0, /* properties_provided */
0, /* properties_destroyed */
0, /* todo_flags_start */
TODO_dump_func, /* todo_flags_finish */
'L' /* letter */
};
/* The doloop optimization. */
static void
rtl_doloop (void)
{
#ifdef HAVE_doloop_end
if (current_loops
&& (flag_branch_on_count_reg && HAVE_doloop_end))
doloop_optimize_loops (current_loops);
#endif
}
struct tree_opt_pass pass_rtl_doloop =
{
"loop_doloop", /* name */
NULL, /* gate */
rtl_doloop, /* execute */
NULL, /* sub */
NULL, /* next */
0, /* static_pass_number */
TV_LOOP, /* tv_id */
0, /* properties_required */
0, /* properties_provided */
0, /* properties_destroyed */
0, /* todo_flags_start */
TODO_dump_func, /* todo_flags_finish */
'L' /* letter */
};

22
gcc/passes.c
View File

@ -525,7 +525,7 @@ init_optimization_passes (void)
NEXT_PASS (pass_reassoc);
NEXT_PASS (pass_pre);
NEXT_PASS (pass_sink_code);
NEXT_PASS (pass_loop);
NEXT_PASS (pass_tree_loop);
NEXT_PASS (pass_dominator);
NEXT_PASS (pass_copy_prop);
NEXT_PASS (pass_cd_dce);
@ -553,11 +553,11 @@ init_optimization_passes (void)
NEXT_PASS (pass_cleanup_cfg_post_optimizing);
*p = NULL;
p = &pass_loop.sub;
NEXT_PASS (pass_loop_init);
p = &pass_tree_loop.sub;
NEXT_PASS (pass_tree_loop_init);
NEXT_PASS (pass_copy_prop);
NEXT_PASS (pass_lim);
NEXT_PASS (pass_unswitch);
NEXT_PASS (pass_tree_unswitch);
NEXT_PASS (pass_scev_cprop);
NEXT_PASS (pass_empty_loop);
NEXT_PASS (pass_record_bounds);
@ -571,7 +571,16 @@ init_optimization_passes (void)
NEXT_PASS (pass_lower_vector_ssa);
NEXT_PASS (pass_complete_unroll);
NEXT_PASS (pass_iv_optimize);
NEXT_PASS (pass_loop_done);
NEXT_PASS (pass_tree_loop_done);
*p = NULL;
p = &pass_loop2.sub;
NEXT_PASS (pass_rtl_loop_init);
NEXT_PASS (pass_rtl_move_loop_invariants);
NEXT_PASS (pass_rtl_unswitch);
NEXT_PASS (pass_rtl_unroll_and_peel_loops);
NEXT_PASS (pass_rtl_doloop);
NEXT_PASS (pass_rtl_loop_done);
*p = NULL;
p = &pass_rest_of_compilation.sub;
@ -592,6 +601,9 @@ init_optimization_passes (void)
NEXT_PASS (pass_profiling);
NEXT_PASS (pass_rtl_ifcvt);
NEXT_PASS (pass_tracer);
/* Perform loop optimizations. It might be better to do them a bit
sooner, but we want the profile feedback to work more
efficiently. */
NEXT_PASS (pass_loop2);
NEXT_PASS (pass_web);
NEXT_PASS (pass_cse2);

16
gcc/tree-pass.h
View File

@ -222,10 +222,10 @@ extern struct tree_opt_pass pass_referenced_vars;
extern struct tree_opt_pass pass_sra;
extern struct tree_opt_pass pass_tail_recursion;
extern struct tree_opt_pass pass_tail_calls;
extern struct tree_opt_pass pass_loop;
extern struct tree_opt_pass pass_loop_init;
extern struct tree_opt_pass pass_tree_loop;
extern struct tree_opt_pass pass_tree_loop_init;
extern struct tree_opt_pass pass_lim;
extern struct tree_opt_pass pass_unswitch;
extern struct tree_opt_pass pass_tree_unswitch;
extern struct tree_opt_pass pass_iv_canon;
extern struct tree_opt_pass pass_scev_cprop;
extern struct tree_opt_pass pass_empty_loop;
@ -234,7 +234,7 @@ extern struct tree_opt_pass pass_if_conversion;
extern struct tree_opt_pass pass_vectorize;
extern struct tree_opt_pass pass_complete_unroll;
extern struct tree_opt_pass pass_iv_optimize;
extern struct tree_opt_pass pass_loop_done;
extern struct tree_opt_pass pass_tree_loop_done;
extern struct tree_opt_pass pass_ch;
extern struct tree_opt_pass pass_ccp;
extern struct tree_opt_pass pass_build_ssa;
@ -316,7 +316,15 @@ extern struct tree_opt_pass pass_cfg;
extern struct tree_opt_pass pass_profiling;
extern struct tree_opt_pass pass_rtl_ifcvt;
extern struct tree_opt_pass pass_tracer;
extern struct tree_opt_pass pass_loop2;
extern struct tree_opt_pass pass_rtl_loop_init;
extern struct tree_opt_pass pass_rtl_move_loop_invariants;
extern struct tree_opt_pass pass_rtl_unswitch;
extern struct tree_opt_pass pass_rtl_unroll_and_peel_loops;
extern struct tree_opt_pass pass_rtl_doloop;
extern struct tree_opt_pass pass_rtl_loop_done;
extern struct tree_opt_pass pass_web;
extern struct tree_opt_pass pass_cse2;
extern struct tree_opt_pass pass_life;

12
gcc/tree-ssa-loop.c
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@ -61,15 +61,15 @@ tree_loop_optimizer_init (FILE *dump)
/* The loop superpass. */
static bool
gate_loop (void)
gate_tree_loop (void)
{
return flag_tree_loop_optimize != 0;
}
struct tree_opt_pass pass_loop =
struct tree_opt_pass pass_tree_loop =
{
"loop", /* name */
gate_loop, /* gate */
gate_tree_loop, /* gate */
NULL, /* execute */
NULL, /* sub */
NULL, /* next */
@ -98,7 +98,7 @@ tree_ssa_loop_init (void)
scev_initialize (current_loops);
}
struct tree_opt_pass pass_loop_init =
struct tree_opt_pass pass_tree_loop_init =
{
"loopinit", /* name */
NULL, /* gate */
@ -166,7 +166,7 @@ gate_tree_ssa_loop_unswitch (void)
return flag_unswitch_loops != 0;
}
struct tree_opt_pass pass_unswitch =
struct tree_opt_pass pass_tree_unswitch =
{
"unswitch", /* name */
gate_tree_ssa_loop_unswitch, /* gate */
@ -454,7 +454,7 @@ tree_ssa_loop_done (void)
current_loops = NULL;
}
struct tree_opt_pass pass_loop_done =
struct tree_opt_pass pass_tree_loop_done =
{
"loopdone", /* name */
NULL, /* gate */