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jump.c: Update comments.

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* jump.c: Update comments.
	(delete_barrier_successors, delete_unreferenced_labels,
	delete_noop_moves, tension_vector_labels, delete_from_jump_chain,
	delete_labelref_insn, redirect_tablejump, jump_optimize_1,
	jump_optimize, jump_optimize_minimal): Kill.
	(rebuild_jump_labels): Move code from jump_optimize_1.
	(purge_line_number_notes): Likewise.
	(copy_loop_headers): Likewise.
	* reg-stack.c: Update comment.
	* stmt.c: Likewise.
	* rtl.h (jump_optimize, jump_optimize_1, JUMP_NOOP_MOVES,
	JUMP_AFTER_REGSCAN): Kill.
	* toplev.c (rest_of_compilation): Use cleanup_cfg, call
	purge_line_number_notes and copy_loop_headers.

From-SVN: r44245
This commit is contained in:
Jan Hubicka 2001-07-22 21:34:13 +02:00 committed by Jan Hubicka
parent 3914abb46e
commit 0045d50435
6 changed files with 92 additions and 844 deletions
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17
gcc/ChangeLog
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@ -1,3 +1,20 @@
Sun Jul 22 21:31:04 CEST 2001 Jan Hubicka <jh@suse.cz>
* jump.c: Update comments.
(delete_barrier_successors, delete_unreferenced_labels,
delete_noop_moves, tension_vector_labels, delete_from_jump_chain,
delete_labelref_insn, redirect_tablejump, jump_optimize_1,
jump_optimize, jump_optimize_minimal): Kill.
(rebuild_jump_labels): Move code from jump_optimize_1.
(purge_line_number_notes): Likewise.
(copy_loop_headers): Likewise.
* reg-stack.c: Update comment.
* stmt.c: Likewise.
* rtl.h (jump_optimize, jump_optimize_1, JUMP_NOOP_MOVES,
JUMP_AFTER_REGSCAN): Kill.
* toplev.c (rest_of_compilation): Use cleanup_cfg, call
purge_line_number_notes and copy_loop_headers.
2001-07-22 Neil Booth <neil@daikokuya.demon.co.uk>
Richard Henderson <rth@redhat.com>

883
gcc/jump.c
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File diff suppressed because it is too large Load Diff

2
gcc/reg-stack.c
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@ -406,7 +406,7 @@ pop_stack (regstack, regno)
dump file, if used.
Construct a CFG and run life analysis. Then convert each insn one
by one. Run a last jump_optimize pass, if optimizing, to eliminate
by one. Run a last cleanup_cfg pass, if optimizing, to eliminate
code duplication created when the converter inserts pop insns on
the edges. */

8
gcc/rtl.h
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@ -1715,8 +1715,6 @@ extern int rtx_renumbered_equal_p PARAMS ((rtx, rtx));
extern int true_regnum PARAMS ((rtx));
extern int redirect_jump_1 PARAMS ((rtx, rtx));
extern int redirect_jump PARAMS ((rtx, rtx, int));
extern void jump_optimize PARAMS ((rtx, int, int));
extern void jump_optimize_minimal PARAMS ((rtx));
extern void rebuild_jump_labels PARAMS ((rtx));
extern void thread_jumps PARAMS ((rtx, int, int));
extern int rtx_equal_for_thread_p PARAMS ((rtx, rtx, rtx));
@ -1727,10 +1725,8 @@ extern enum rtx_code reversed_comparison_code_parts PARAMS ((enum rtx_code,
extern void delete_for_peephole PARAMS ((rtx, rtx));
extern int condjump_in_parallel_p PARAMS ((rtx));
extern void never_reached_warning PARAMS ((rtx));
/* Flags for jump_optimize() */
#define JUMP_NOOP_MOVES 1
#define JUMP_AFTER_REGSCAN 1
extern void purge_line_number_notes PARAMS ((rtx));
extern void copy_loop_headers PARAMS ((rtx));
/* In emit-rtl.c. */
extern int max_reg_num PARAMS ((void));

2
gcc/stmt.c
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@ -3467,7 +3467,7 @@ expand_nl_handler_label (slot, before_insn)
rtx insns;
rtx handler_label = gen_label_rtx ();
/* Don't let jump_optimize delete the handler. */
/* Don't let cleanup_cfg delete the handler. */
LABEL_PRESERVE_P (handler_label) = 1;
start_sequence ();

24
gcc/toplev.c
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@ -2774,7 +2774,7 @@ rest_of_compilation (decl)
purge_hard_subreg_sets (get_insns ());
emit_initial_value_sets ();
/* Don't return yet if -Wreturn-type; we need to do jump_optimize. */
/* Don't return yet if -Wreturn-type; we need to do cleanup_cfg. */
if ((rtl_dump_and_exit || flag_syntax_only) && !warn_return_type)
goto exit_rest_of_compilation;
@ -2839,7 +2839,11 @@ rest_of_compilation (decl)
expected_value_to_br_prob ();
reg_scan (insns, max_reg_num (), 0);
jump_optimize (insns, !JUMP_NOOP_MOVES, JUMP_AFTER_REGSCAN);
rebuild_jump_labels (insns);
find_basic_blocks (insns, max_reg_num (), rtl_dump_file);
cleanup_cfg (optimize ? CLEANUP_EXPENSIVE : 0);
copy_loop_headers (insns);
purge_line_number_notes (insns);
timevar_pop (TV_JUMP);
@ -2981,7 +2985,9 @@ rest_of_compilation (decl)
if (tem || optimize > 1)
{
timevar_push (TV_JUMP);
jump_optimize (insns, !JUMP_NOOP_MOVES, !JUMP_AFTER_REGSCAN);
rebuild_jump_labels (insns);
find_basic_blocks (insns, max_reg_num (), rtl_dump_file);
cleanup_cfg (CLEANUP_EXPENSIVE);
timevar_pop (TV_JUMP);
}
@ -3053,7 +3059,8 @@ rest_of_compilation (decl)
{
tem = tem2 = 0;
timevar_push (TV_JUMP);
jump_optimize (insns, !JUMP_NOOP_MOVES, !JUMP_AFTER_REGSCAN);
rebuild_jump_labels (insns);
cleanup_cfg (CLEANUP_EXPENSIVE);
timevar_pop (TV_JUMP);
if (flag_expensive_optimizations)
@ -3126,7 +3133,6 @@ rest_of_compilation (decl)
delete_trivially_dead_insns (insns, max_reg_num (), 0);
reg_scan (insns, max_reg_num (), 0);
jump_optimize (insns, !JUMP_NOOP_MOVES, JUMP_AFTER_REGSCAN);
timevar_push (TV_IFCVT);
@ -3144,7 +3150,9 @@ rest_of_compilation (decl)
if (tem)
{
timevar_push (TV_JUMP);
jump_optimize (insns, !JUMP_NOOP_MOVES, !JUMP_AFTER_REGSCAN);
rebuild_jump_labels (insns);
find_basic_blocks (insns, max_reg_num (), rtl_dump_file);
cleanup_cfg (CLEANUP_EXPENSIVE);
timevar_pop (TV_JUMP);
}
}
@ -3461,8 +3469,8 @@ rest_of_compilation (decl)
timevar_push (TV_FLOW2);
open_dump_file (DFI_flow2, decl);
jump_optimize (insns, JUMP_NOOP_MOVES, !JUMP_AFTER_REGSCAN);
find_basic_blocks (insns, max_reg_num (), rtl_dump_file);
cleanup_cfg (0);
/* On some machines, the prologue and epilogue code, or parts thereof,
can be represented as RTL. Doing so lets us schedule insns between
@ -3599,6 +3607,8 @@ rest_of_compilation (decl)
/* CFG no longer kept up to date. */
purge_line_number_notes (insns);
/* If a scheduling pass for delayed branches is to be done,
call the scheduling code. */