diff options
author | Jan Hubicka <jh@suse.cz> | 2001-09-16 20:21:30 +0000 |
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committer | Jan Hubicka <hubicka@gcc.gnu.org> | 2001-09-16 20:21:30 +0000 |
commit | 3c030e88e793d2aff78a76e9df248bc029c9048c (patch) | |
tree | 3f3b141a9f45004a367eed069d691638b036e04f | |
parent | 345894b43fd5709b3990ff7897ed2b941d62742c (diff) | |
download | gcc-3c030e88e793d2aff78a76e9df248bc029c9048c.zip gcc-3c030e88e793d2aff78a76e9df248bc029c9048c.tar.gz gcc-3c030e88e793d2aff78a76e9df248bc029c9048c.tar.bz2 |
basic-block.h (free_bb_for_insn): Declare.
* basic-block.h (free_bb_for_insn): Declare.
* bb-reorder.c (label_for_bb): Use block_label.
(emit_jump_to_block_after): Remove.
(insert_intra_1): Do not update block_for_insn.
(insert_inter_bb_scope_notes): Likewise; update bb->end
* cfg.c (free_bb_for_insn): New.
(try_rediret_by_replacing_jump): Avoid set_block_for_new_insns call.
(force_nonfallthru_and_redirect): Likewise; do not update BB boundaries.
(commit_one_edge_insertion): Likewise.
(commit_one_edge_insertion): Do not update BB boundary.
(commit_edge_insertions): Do not call compute_bb_for_insn.
* cfgbuild.c (find_basic_blocks): Do not free basic_block_for_insn.
* cfgcleanup.c (merge_blocks_move_predecessor): Use reorder_insns_nobb.
(merge_blocks_move_successor_nojumps): Likewise.
(try_crossjump_to_edge): Do not update block_for_insn.
* combine.c (combine_instructions): Remove compute_bb_for_insn call.
* df.c (df_pattern_emit_later): Do not update BB boundary.
(df_jump_pattern_emit_after): Likewise.
(df_insn_move_before): Use emit_insn_before.
* emit-rtl.c (try_split): Emit after trial to get bb boundary updated
properly.
(add_insn_after, add_insn_before, emit_insns_after): Update BB
boundaries and basic_block_for_insn.
(reorder_insns_nobb): Rename from reorder_insns.
(reorder_insns): New.
(emit_block_insn_before, emit_block_insn_after): Kill.
* flow.c (check_function_return_warnings): Do not call
compute_bb_for_insn; Do not free basic_block_for_insn.
(attempt_auto_inc): Do not update basic_block_for_insn.
* function.c (emit_return_into_block): Likewise;
do not update BB boundaries.
* gcse.c (handle_avail_expr): Do not update basic_block_for_insn.
(insert_insn_end_bb): Use emit_insn_before; Likewise.
(pre_insert_copy_insn): Likewise.
(update_ld_motion_notes): Likewise.
(insert_insn_start_bb): Likewise.
(replace_store_insn): Likewise.
* ifcvt.c (noce_process_if_block): Likewise.
(if_convert): Do not call compute_bb_for_insn.
* lcm.c (optimize_mode_switching): Do not update BB boundaries.
Use emit_insn_before and emit_insn_after.
* recog.c (split_all_insns): Do not update BB boundaries;
Do not call compute_bb_for_insn.
(peephole2_optimize): Do not update BB boundaries.
* reg-stack.c (emit_pop_insn): Use emit_insn_after and
emit_insn_before.
(emit_swap_insn): Likewise.
(convert_regs_1): Likewise.
* reload1.c (reload): Call compute_bb_for_insn.
* rtl.h (reorder_insns_nobb): Declare.
* ssa.c (rename_equivalent_regs): Use emit_insn_before.
* toplev.c (rest_of_compilation): Call free_bb_for_insn
at places CFG is invalidated; do not call compute_bb_for_insn.
* cfg.c (expunge_block): Invalidate BB structure.
* (merge_blocks_nomove): Update properly BLOCK_FOR_INSN
array.
* cfg.c (verify_flow_info): Verify the basic_block_for_insn array.
From-SVN: r45647
-rw-r--r-- | gcc/ChangeLog | 63 | ||||
-rw-r--r-- | gcc/basic-block.h | 1 | ||||
-rw-r--r-- | gcc/bb-reorder.c | 62 | ||||
-rw-r--r-- | gcc/cfg.c | 61 | ||||
-rw-r--r-- | gcc/cfgbuild.c | 2 | ||||
-rw-r--r-- | gcc/cfgcleanup.c | 6 | ||||
-rw-r--r-- | gcc/combine.c | 1 | ||||
-rw-r--r-- | gcc/df.c | 8 | ||||
-rw-r--r-- | gcc/emit-rtl.c | 111 | ||||
-rw-r--r-- | gcc/flow.c | 12 | ||||
-rw-r--r-- | gcc/function.c | 15 | ||||
-rw-r--r-- | gcc/gcse.c | 34 | ||||
-rw-r--r-- | gcc/haifa-sched.c | 6 | ||||
-rw-r--r-- | gcc/ifcvt.c | 5 | ||||
-rw-r--r-- | gcc/lcm.c | 10 | ||||
-rw-r--r-- | gcc/recog.c | 17 | ||||
-rw-r--r-- | gcc/reg-stack.c | 10 | ||||
-rw-r--r-- | gcc/reload1.c | 1 | ||||
-rw-r--r-- | gcc/rtl.h | 1 | ||||
-rw-r--r-- | gcc/ssa.c | 2 | ||||
-rw-r--r-- | gcc/toplev.c | 32 |
21 files changed, 242 insertions, 218 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 934d0b1..069d527 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,66 @@ +Sun Sep 16 21:59:46 CEST 2001 Jan hubicka <jh@suse.cz> + + * basic-block.h (free_bb_for_insn): Declare. + * bb-reorder.c (label_for_bb): Use block_label. + (emit_jump_to_block_after): Remove. + (insert_intra_1): Do not update block_for_insn. + (insert_inter_bb_scope_notes): Likewise; update bb->end + * cfg.c (free_bb_for_insn): New. + (try_rediret_by_replacing_jump): Avoid set_block_for_new_insns call. + (force_nonfallthru_and_redirect): Likewise; do not update BB boundaries. + (commit_one_edge_insertion): Likewise. + (commit_one_edge_insertion): Do not update BB boundary. + (commit_edge_insertions): Do not call compute_bb_for_insn. + * cfgbuild.c (find_basic_blocks): Do not free basic_block_for_insn. + * cfgcleanup.c (merge_blocks_move_predecessor): Use reorder_insns_nobb. + (merge_blocks_move_successor_nojumps): Likewise. + (try_crossjump_to_edge): Do not update block_for_insn. + * combine.c (combine_instructions): Remove compute_bb_for_insn call. + * df.c (df_pattern_emit_later): Do not update BB boundary. + (df_jump_pattern_emit_after): Likewise. + (df_insn_move_before): Use emit_insn_before. + * emit-rtl.c (try_split): Emit after trial to get bb boundary updated + properly. + (add_insn_after, add_insn_before, emit_insns_after): Update BB + boundaries and basic_block_for_insn. + (reorder_insns_nobb): Rename from reorder_insns. + (reorder_insns): New. + (emit_block_insn_before, emit_block_insn_after): Kill. + * flow.c (check_function_return_warnings): Do not call + compute_bb_for_insn; Do not free basic_block_for_insn. + (attempt_auto_inc): Do not update basic_block_for_insn. + * function.c (emit_return_into_block): Likewise; + do not update BB boundaries. + * gcse.c (handle_avail_expr): Do not update basic_block_for_insn. + (insert_insn_end_bb): Use emit_insn_before; Likewise. + (pre_insert_copy_insn): Likewise. + (update_ld_motion_notes): Likewise. + (insert_insn_start_bb): Likewise. + (replace_store_insn): Likewise. + * ifcvt.c (noce_process_if_block): Likewise. + (if_convert): Do not call compute_bb_for_insn. + * lcm.c (optimize_mode_switching): Do not update BB boundaries. + Use emit_insn_before and emit_insn_after. + * recog.c (split_all_insns): Do not update BB boundaries; + Do not call compute_bb_for_insn. + (peephole2_optimize): Do not update BB boundaries. + * reg-stack.c (emit_pop_insn): Use emit_insn_after and + emit_insn_before. + (emit_swap_insn): Likewise. + (convert_regs_1): Likewise. + * reload1.c (reload): Call compute_bb_for_insn. + * rtl.h (reorder_insns_nobb): Declare. + * ssa.c (rename_equivalent_regs): Use emit_insn_before. + * toplev.c (rest_of_compilation): Call free_bb_for_insn + at places CFG is invalidated; do not call compute_bb_for_insn. + + * cfg.c (expunge_block): Invalidate BB structure. + + * (merge_blocks_nomove): Update properly BLOCK_FOR_INSN + array. + + * cfg.c (verify_flow_info): Verify the basic_block_for_insn array. + 2001-09-16 Neil Booth <neil@daikokuya.demon.co.uk> * cpphash.h (_cpp_lex_token): Update prototype. diff --git a/gcc/basic-block.h b/gcc/basic-block.h index 1a61328..8771b78 100644 --- a/gcc/basic-block.h +++ b/gcc/basic-block.h @@ -288,6 +288,7 @@ extern varray_type basic_block_for_insn; #define BLOCK_NUM(INSN) (BLOCK_FOR_INSN (INSN)->index + 0) extern void compute_bb_for_insn PARAMS ((int)); +extern void free_bb_for_insn PARAMS ((void)); extern void update_bb_for_insn PARAMS ((basic_block)); extern void set_block_for_insn PARAMS ((rtx, basic_block)); extern void set_block_for_new_insns PARAMS ((rtx, basic_block)); diff --git a/gcc/bb-reorder.c b/gcc/bb-reorder.c index f51294b..c471a6f 100644 --- a/gcc/bb-reorder.c +++ b/gcc/bb-reorder.c @@ -180,7 +180,6 @@ static void record_effective_endpoints PARAMS ((void)); static void make_reorder_chain PARAMS ((void)); static basic_block make_reorder_chain_1 PARAMS ((basic_block, basic_block)); static rtx label_for_bb PARAMS ((basic_block)); -static rtx emit_jump_to_block_after PARAMS ((basic_block, rtx)); static void fixup_reorder_chain PARAMS ((void)); static void relate_bbs_with_scopes PARAMS ((scope)); static scope make_new_scope PARAMS ((int, rtx)); @@ -505,60 +504,15 @@ label_for_bb (bb) fprintf (rtl_dump_file, "Emitting label for block %d\n", bb->index); - label = emit_label_before (gen_label_rtx (), label); - if (bb->head == RBI (bb)->eff_head) + label = block_label (bb); + if (bb->head == PREV_INSN (RBI (bb)->eff_head)) RBI (bb)->eff_head = label; - bb->head = label; - if (basic_block_for_insn) - set_block_for_insn (label, bb); } return label; } -/* Emit a jump to BB after insn AFTER. */ - -static rtx -emit_jump_to_block_after (bb, after) - basic_block bb; - rtx after; -{ - rtx jump; - - if (bb != EXIT_BLOCK_PTR) - { - rtx label = label_for_bb (bb); - jump = emit_jump_insn_after (gen_jump (label), after); - JUMP_LABEL (jump) = label; - LABEL_NUSES (label) += 1; - if (basic_block_for_insn) - set_block_for_new_insns (jump, bb); - - if (rtl_dump_file) - fprintf (rtl_dump_file, "Emitting jump to block %d\n", - bb->index); - } - else - { -#ifdef HAVE_return - if (! HAVE_return) - abort (); - jump = emit_jump_insn_after (gen_return (), after); - if (basic_block_for_insn) - set_block_for_new_insns (jump, bb); - - if (rtl_dump_file) - fprintf (rtl_dump_file, "Emitting return\n"); -#else - abort (); -#endif - } - - return jump; -} - - /* Given a reorder chain, rearrange the code to match. */ static void @@ -1122,8 +1076,6 @@ insert_intra_1 (s, ip, bb) { *ip = emit_note_after (NOTE_INSN_BLOCK_BEG, *ip); NOTE_BLOCK (*ip) = NOTE_BLOCK (s->note_beg); - if (basic_block_for_insn) - set_block_for_insn (*ip, bb); } for (p = s->inner; p; p = p->next) @@ -1133,8 +1085,6 @@ insert_intra_1 (s, ip, bb) { *ip = emit_note_after (NOTE_INSN_BLOCK_END, *ip); NOTE_BLOCK (*ip) = NOTE_BLOCK (s->note_end); - if (basic_block_for_insn) - set_block_for_insn (*ip, bb); } } @@ -1220,6 +1170,8 @@ insert_inter_bb_scope_notes (bb1, bb2) /* Close scopes. */ if (bb1) { + rtx end = bb1->end; + scope s = RBI (bb1)->scope; ip = RBI (bb1)->eff_end; while (s != com) @@ -1228,11 +1180,11 @@ insert_inter_bb_scope_notes (bb1, bb2) { ip = emit_note_after (NOTE_INSN_BLOCK_END, ip); NOTE_BLOCK (ip) = NOTE_BLOCK (s->note_end); - if (basic_block_for_insn) - set_block_for_insn (ip, bb1); } s = s->outer; } + /* Emitting note may move the end of basic block to unwanted place. */ + bb1->end = end; } /* Open scopes. */ @@ -1246,8 +1198,6 @@ insert_inter_bb_scope_notes (bb1, bb2) { ip = emit_note_before (NOTE_INSN_BLOCK_BEG, ip); NOTE_BLOCK (ip) = NOTE_BLOCK (s->note_beg); - if (basic_block_for_insn) - set_block_for_insn (ip, bb2); } s = s->outer; } @@ -451,6 +451,9 @@ expunge_block (b) x->index = i; } + /* Invalidate data to make bughunting easier. */ + memset (b, 0, sizeof (*b)); + b->index = -3; basic_block_info->num_elements--; n_basic_blocks--; } @@ -552,6 +555,16 @@ compute_bb_for_insn (max) } } +/* Release the basic_block_for_insn array. */ + +void +free_bb_for_insn () +{ + if (basic_block_for_insn) + VARRAY_FREE (basic_block_for_insn); + basic_block_for_insn = 0; +} + /* Update insns block within BB. */ void @@ -933,7 +946,7 @@ merge_blocks_nomove (a, b) } #endif - a_end = prev; + a_end = PREV_INSN (del_first); } else if (GET_CODE (NEXT_INSN (a_end)) == BARRIER) del_first = NEXT_INSN (a_end); @@ -960,13 +973,14 @@ merge_blocks_nomove (a, b) /* Reassociate the insns of B with A. */ if (!b_empty) { + rtx x = a_end; if (basic_block_for_insn) { - BLOCK_FOR_INSN (b_head) = a; - while (b_head != b_end) + BLOCK_FOR_INSN (x) = a; + while (x != b_end) { - b_head = NEXT_INSN (b_head); - BLOCK_FOR_INSN (b_head) = a; + x = NEXT_INSN (x); + BLOCK_FOR_INSN (x) = a; } } a_end = b_end; @@ -1061,8 +1075,6 @@ try_redirect_by_replacing_jump (e, target) src->end = emit_jump_insn_before (gen_jump (target_label), kill_from); JUMP_LABEL (src->end) = target_label; LABEL_NUSES (target_label)++; - if (basic_block_for_insn) - set_block_for_new_insns (src->end, src); if (rtl_dump_file) fprintf (rtl_dump_file, "Replacing insn %i by jump %i\n", INSN_UID (insn), INSN_UID (src->end)); @@ -1279,11 +1291,9 @@ force_nonfallthru_and_redirect (e, target) jump_block = e->src; e->flags &= ~EDGE_FALLTHRU; label = block_label (target); - jump_block->end = emit_jump_insn_after (gen_jump (label), jump_block->end); + emit_jump_insn_after (gen_jump (label), jump_block->end); JUMP_LABEL (jump_block->end) = label; LABEL_NUSES (label)++; - if (basic_block_for_insn) - set_block_for_new_insns (jump_block->end, jump_block); emit_barrier_after (jump_block->end); redirect_edge_succ_nodup (e, target); @@ -1641,28 +1651,13 @@ commit_one_edge_insertion (e) /* Now that we've found the spot, do the insertion. */ - /* Set the new block number for these insns, if structure is allocated. */ - if (basic_block_for_insn) - { - rtx i; - for (i = insns; i != NULL_RTX; i = NEXT_INSN (i)) - set_block_for_insn (i, bb); - } - if (before) { emit_insns_before (insns, before); - if (before == bb->head) - bb->head = insns; - last = prev_nonnote_insn (before); } else - { - last = emit_insns_after (insns, after); - if (after == bb->end) - bb->end = last; - } + last = emit_insns_after (insns, after); if (returnjump_p (last)) { @@ -1679,7 +1674,6 @@ commit_one_edge_insertion (e) e->flags &= ~EDGE_FALLTHRU; emit_barrier_after (last); - bb->end = last; if (before) flow_delete_insn (before); @@ -1696,7 +1690,6 @@ commit_edge_insertions () { int i; basic_block bb; - compute_bb_for_insn (get_max_uid ()); #ifdef ENABLE_CHECKING verify_flow_info (); @@ -2171,6 +2164,18 @@ verify_flow_info () edge_checksum[e->dest->index + 2] -= (size_t) e; e = e->pred_next; } + for (x = bb->head; x != NEXT_INSN (bb->end); x = NEXT_INSN (x)) + if (basic_block_for_insn && BLOCK_FOR_INSN (x) != bb) + { + debug_rtx (x); + if (! BLOCK_FOR_INSN (x)) + error ("Insn %d is inside basic block %d but block_for_insn is NULL", + INSN_UID (x), bb->index); + else + error ("Insn %d is inside basic block %d but block_for_insn is %i", + INSN_UID (x), bb->index, BLOCK_FOR_INSN (x)->index); + err = 1; + } /* OK pointers are correct. Now check the header of basic block. It ought to contain optional CODE_LABEL followed diff --git a/gcc/cfgbuild.c b/gcc/cfgbuild.c index a6ac3a0..85185e5 100644 --- a/gcc/cfgbuild.c +++ b/gcc/cfgbuild.c @@ -604,8 +604,6 @@ find_basic_blocks (f, nregs, file) int max_uid; timevar_push (TV_CFG); - if (basic_block_for_insn) - VARRAY_FREE (basic_block_for_insn); basic_block_for_insn = 0; /* Flush out existing data. */ diff --git a/gcc/cfgcleanup.c b/gcc/cfgcleanup.c index 2dbf8ef..7e227f6 100644 --- a/gcc/cfgcleanup.c +++ b/gcc/cfgcleanup.c @@ -290,7 +290,7 @@ merge_blocks_move_predecessor_nojumps (a, b) /* Scramble the insn chain. */ if (a->end != PREV_INSN (b->head)) - reorder_insns (a->head, a->end, PREV_INSN (b->head)); + reorder_insns_nobb (a->head, a->end, PREV_INSN (b->head)); if (rtl_dump_file) { @@ -349,7 +349,7 @@ merge_blocks_move_successor_nojumps (a, b) squeeze_notes (&b->head, &b->end); /* Scramble the insn chain. */ - reorder_insns (b->head, b->end, a->end); + reorder_insns_nobb (b->head, b->end, a->end); /* Now blocks A and B are contiguous. Merge them. */ merge_blocks_nomove (a, b); @@ -904,8 +904,6 @@ try_crossjump_to_edge (mode, e1, e2) src1->end = emit_jump_insn_before (gen_jump (label), newpos1); JUMP_LABEL (src1->end) = label; LABEL_NUSES (label)++; - if (basic_block_for_insn) - set_block_for_new_insns (src1->end, src1); /* Delete the now unreachable instructions. */ flow_delete_insn_chain (newpos1, last); diff --git a/gcc/combine.c b/gcc/combine.c index 1512ef0..ed1c45f 100644 --- a/gcc/combine.c +++ b/gcc/combine.c @@ -717,7 +717,6 @@ combine_instructions (f, nregs) if (need_refresh) { - compute_bb_for_insn (get_max_uid ()); update_life_info (refresh_blocks, UPDATE_LIFE_GLOBAL_RM_NOTES, PROP_DEATH_NOTES); } @@ -2959,9 +2959,6 @@ df_pattern_emit_after (df, pattern, bb, insn) if (ret_insn == insn) return ret_insn; - if (bb->end == insn) - bb->end = ret_insn; - df_insns_modify (df, bb, NEXT_INSN (insn), ret_insn); return ret_insn; } @@ -2981,9 +2978,6 @@ df_jump_pattern_emit_after (df, pattern, bb, insn) if (ret_insn == insn) return ret_insn; - if (bb->end == insn) - bb->end = ret_insn; - df_insns_modify (df, bb, NEXT_INSN (insn), ret_insn); return ret_insn; } @@ -3023,7 +3017,7 @@ df_insn_move_before (df, bb, insn, before_bb, before_insn) /* ???? Perhaps all the insns moved should be stored on a list which df_analyse removes when it recalculates data flow. */ - return emit_block_insn_before (insn, before_insn, before_bb); + return emit_insn_before (insn, before_insn); } /* Functions to query dataflow information. */ diff --git a/gcc/emit-rtl.c b/gcc/emit-rtl.c index 863ad294..82bff92 100644 --- a/gcc/emit-rtl.c +++ b/gcc/emit-rtl.c @@ -2574,7 +2574,7 @@ try_split (pat, trial, last) if (GET_CODE (XVECEXP (seq, 0, i)) == INSN) mark_label_nuses (PATTERN (XVECEXP (seq, 0, i))); - tem = emit_insn_after (seq, before); + tem = emit_insn_after (seq, trial); delete_insn (trial); if (has_barrier) @@ -2710,6 +2710,7 @@ add_insn_after (insn, after) rtx insn, after; { rtx next = NEXT_INSN (after); + basic_block bb; if (optimize && INSN_DELETED_P (after)) abort (); @@ -2740,6 +2741,21 @@ add_insn_after (insn, after) abort (); } + if (basic_block_for_insn + && (unsigned int)INSN_UID (after) < basic_block_for_insn->num_elements + && (bb = BLOCK_FOR_INSN (after))) + { + set_block_for_insn (insn, bb); + /* Should not happen as first in the BB is always + eigther NOTE or LABEL. */ + if (bb->end == after + /* Avoid clobbering of structure when creating new BB. */ + && GET_CODE (insn) != BARRIER + && (GET_CODE (insn) != NOTE + || NOTE_LINE_NUMBER (insn) != NOTE_INSN_BASIC_BLOCK)) + bb->end = insn; + } + NEXT_INSN (after) = insn; if (GET_CODE (after) == INSN && GET_CODE (PATTERN (after)) == SEQUENCE) { @@ -2758,6 +2774,7 @@ add_insn_before (insn, before) rtx insn, before; { rtx prev = PREV_INSN (before); + basic_block bb; if (optimize && INSN_DELETED_P (before)) abort (); @@ -2791,6 +2808,21 @@ add_insn_before (insn, before) abort (); } + if (basic_block_for_insn + && (unsigned int)INSN_UID (before) < basic_block_for_insn->num_elements + && (bb = BLOCK_FOR_INSN (before))) + { + set_block_for_insn (insn, bb); + /* Should not happen as first in the BB is always + eigther NOTE or LABEl. */ + if (bb->head == insn + /* Avoid clobbering of structure when creating new BB. */ + && GET_CODE (insn) != BARRIER + && (GET_CODE (insn) != NOTE + || NOTE_LINE_NUMBER (insn) != NOTE_INSN_BASIC_BLOCK)) + abort (); + } + PREV_INSN (before) = insn; if (GET_CODE (before) == INSN && GET_CODE (PATTERN (before)) == SEQUENCE) PREV_INSN (XVECEXP (PATTERN (before), 0, 0)) = insn; @@ -2879,7 +2911,7 @@ delete_insns_since (from) called after delay-slot filling has been done. */ void -reorder_insns (from, to, after) +reorder_insns_nobb (from, to, after) rtx from, to, after; { /* Splice this bunch out of where it is now. */ @@ -2903,6 +2935,38 @@ reorder_insns (from, to, after) last_insn = to; } +/* Same as function above, but take care to update BB boundaries. */ +void +reorder_insns (from, to, after) + rtx from, to, after; +{ + rtx prev = PREV_INSN (from); + basic_block bb, bb2; + + reorder_insns_nobb (from, to, after); + + if (basic_block_for_insn + && (unsigned int)INSN_UID (after) < basic_block_for_insn->num_elements + && (bb = BLOCK_FOR_INSN (after))) + { + rtx x; + + if (basic_block_for_insn + && (unsigned int)INSN_UID (from) < basic_block_for_insn->num_elements + && (bb2 = BLOCK_FOR_INSN (from))) + { + if (bb2->end == to) + bb2->end = prev; + } + + if (bb->end == after) + bb->end = to; + + for (x = from; x != NEXT_INSN (to); x = NEXT_INSN (x)) + set_block_for_insn (x, bb); + } +} + /* Return the line note insn preceding INSN. */ static rtx @@ -3089,20 +3153,6 @@ emit_insn_before (pattern, before) return insn; } -/* Similar to emit_insn_before, but update basic block boundaries as well. */ - -rtx -emit_block_insn_before (pattern, before, block) - rtx pattern, before; - basic_block block; -{ - rtx prev = PREV_INSN (before); - rtx r = emit_insn_before (pattern, before); - if (block && block->head == before) - block->head = NEXT_INSN (prev); - return r; -} - /* Make an instruction with body PATTERN and code JUMP_INSN and output it before the instruction BEFORE. */ @@ -3243,19 +3293,6 @@ emit_insn_after_with_line_notes (pattern, after, from) insn); } -/* Similar to emit_insn_after, but update basic block boundaries as well. */ - -rtx -emit_block_insn_after (pattern, after, block) - rtx pattern, after; - basic_block block; -{ - rtx r = emit_insn_after (pattern, after); - if (block && block->end == after) - block->end = r; - return r; -} - /* Make an insn of code JUMP_INSN with body PATTERN and output it after the insn AFTER. */ @@ -3431,6 +3468,7 @@ emit_insns_after (first, after) { register rtx last; register rtx after_after; + basic_block bb; if (!after) abort (); @@ -3438,8 +3476,19 @@ emit_insns_after (first, after) if (!first) return first; - for (last = first; NEXT_INSN (last); last = NEXT_INSN (last)) - continue; + if (basic_block_for_insn + && (unsigned int)INSN_UID (after) < basic_block_for_insn->num_elements + && (bb = BLOCK_FOR_INSN (after))) + { + for (last = first; NEXT_INSN (last); last = NEXT_INSN (last)) + set_block_for_insn (last, bb); + set_block_for_insn (last, bb); + if (bb->end == after) + bb->end = last; + } + else + for (last = first; NEXT_INSN (last); last = NEXT_INSN (last)) + continue; after_after = NEXT_INSN (after); @@ -377,8 +377,6 @@ check_function_return_warnings () { /* Recompute insn->block mapping, since the initial mapping is set before we delete unreachable blocks. */ - compute_bb_for_insn (max_uid); - if (BLOCK_FOR_INSN (cfun->x_clobber_return_insn) != NULL) warning ("control reaches end of non-void function"); } @@ -739,12 +737,6 @@ void free_basic_block_vars (keep_head_end_p) int keep_head_end_p; { - if (basic_block_for_insn) - { - VARRAY_FREE (basic_block_for_insn); - basic_block_for_insn = NULL; - } - if (! keep_head_end_p) { if (basic_block_info) @@ -3099,10 +3091,6 @@ attempt_auto_inc (pbi, inc, insn, mem, incr, incr_reg) insns = get_insns (); end_sequence (); - if (basic_block_for_insn) - for (temp = insns; temp; temp = NEXT_INSN (temp)) - set_block_for_insn (temp, pbi->bb); - /* If we can't make the auto-inc, or can't make the replacement into Y, exit. There's no point in making the change below if we can't do the auto-inc and doing diff --git a/gcc/function.c b/gcc/function.c index f2beb9f..e6a269e 100644 --- a/gcc/function.c +++ b/gcc/function.c @@ -7118,16 +7118,7 @@ emit_return_into_block (bb, line_note) end = emit_jump_insn_after (gen_return (), bb->end); if (line_note) emit_line_note_after (NOTE_SOURCE_FILE (line_note), - NOTE_LINE_NUMBER (line_note), bb->end); - - while (1) - { - set_block_for_insn (p, bb); - if (p == bb->end) - break; - p = PREV_INSN (p); - } - bb->end = end; + NOTE_LINE_NUMBER (line_note), PREV_INSN (bb->end)); } #endif /* HAVE_return */ @@ -7418,10 +7409,6 @@ epilogue_done: i = PREV_INSN (insn); newinsn = emit_insn_before (seq, insn); - /* Update the UID to basic block map. */ - for (i = NEXT_INSN (i); i != insn; i = NEXT_INSN (i)) - set_block_for_insn (i, bb); - /* Retain a map of the epilogue insns. Used in life analysis to avoid getting rid of sibcall epilogue insns. */ record_insns (GET_CODE (seq) == SEQUENCE @@ -3508,9 +3508,6 @@ handle_avail_expr (insn, expr) SET_DEST (expr_set)), insn_computes_expr); - /* Keep block number table up to date. */ - set_block_for_new_insns (new_insn, BLOCK_FOR_INSN (insn_computes_expr)); - /* Keep register set table up to date. */ record_one_set (REGNO (to), new_insn); @@ -4636,7 +4633,7 @@ insert_insn_end_bb (expr, bb, pre) } #endif /* FIXME: What if something in cc0/jump uses value set in new insn? */ - new_insn = emit_block_insn_before (pat, insn, bb); + new_insn = emit_insn_before (pat, insn); } /* Likewise if the last insn is a call, as will happen in the presence @@ -4674,13 +4671,10 @@ insert_insn_end_bb (expr, bb, pre) || NOTE_INSN_BASIC_BLOCK_P (insn)) insn = NEXT_INSN (insn); - new_insn = emit_block_insn_before (pat, insn, bb); + new_insn = emit_insn_before (pat, insn); } else - { - new_insn = emit_insn_after (pat, insn); - bb->end = new_insn; - } + new_insn = emit_insn_after (pat, insn); /* Keep block number table up to date. Note, PAT could be a multiple insn sequence, we have to make @@ -4690,8 +4684,6 @@ insert_insn_end_bb (expr, bb, pre) for (i = 0; i < XVECLEN (pat, 0); i++) { rtx insn = XVECEXP (pat, 0, i); - - set_block_for_insn (insn, bb); if (INSN_P (insn)) add_label_notes (PATTERN (insn), new_insn); @@ -4701,7 +4693,6 @@ insert_insn_end_bb (expr, bb, pre) else { add_label_notes (SET_SRC (pat), new_insn); - set_block_for_new_insns (new_insn, bb); /* Keep register set table up to date. */ record_one_set (regno, new_insn); @@ -4815,20 +4806,14 @@ pre_insert_copy_insn (expr, insn) int indx = expr->bitmap_index; rtx set = single_set (insn); rtx new_insn; - basic_block bb = BLOCK_FOR_INSN (insn); if (!set) abort (); new_insn = emit_insn_after (gen_move_insn (reg, SET_DEST (set)), insn); - /* Keep block number table up to date. */ - set_block_for_new_insns (new_insn, bb); - /* Keep register set table up to date. */ record_one_set (regno, new_insn); - if (insn == bb->end) - bb->end = new_insn; gcse_create_count++; @@ -6254,7 +6239,6 @@ update_ld_motion_stores (expr) copy = gen_move_insn ( reg, SET_SRC (pat)); new = emit_insn_before (copy, insn); record_one_set (REGNO (reg), new); - set_block_for_new_insns (new, BLOCK_FOR_INSN (insn)); SET_SRC (pat) = reg; /* un-recognize this pattern since it's probably different now. */ @@ -6753,11 +6737,6 @@ insert_insn_start_bb (insn, bb) insn = emit_insn_after (insn, prev); - if (prev == bb->end) - bb->end = insn; - - set_block_for_new_insns (insn, bb); - if (gcse_file) { fprintf (gcse_file, "STORE_MOTION insert store at start of BB %d:\n", @@ -6846,7 +6825,6 @@ replace_store_insn (reg, del, bb) insn = gen_move_insn (reg, SET_SRC (PATTERN (del))); insn = emit_insn_after (insn, del); - set_block_for_new_insns (insn, bb); if (gcse_file) { @@ -6858,12 +6836,6 @@ replace_store_insn (reg, del, bb) fprintf(gcse_file, "\n"); } - if (bb->end == del) - bb->end = insn; - - if (bb->head == del) - bb->head = insn; - delete_insn (del); } diff --git a/gcc/haifa-sched.c b/gcc/haifa-sched.c index d341f37..fe4153d 100644 --- a/gcc/haifa-sched.c +++ b/gcc/haifa-sched.c @@ -1971,7 +1971,11 @@ sched_init (dump_file) && GET_CODE (insn) != CODE_LABEL /* Don't emit a NOTE if it would end up before a BARRIER. */ && GET_CODE (NEXT_INSN (insn)) != BARRIER)) - emit_note_after (NOTE_INSN_DELETED, BLOCK_END (n_basic_blocks - 1)); + { + emit_note_after (NOTE_INSN_DELETED, BLOCK_END (n_basic_blocks - 1)); + /* Make insn to appear outside BB. */ + BLOCK_END (n_basic_blocks - 1) = PREV_INSN (BLOCK_END (n_basic_blocks - 1)); + } /* Compute INSN_REG_WEIGHT for all blocks. We must do this before removing death notes. */ diff --git a/gcc/ifcvt.c b/gcc/ifcvt.c index ee6397f..4a76d22 100644 --- a/gcc/ifcvt.c +++ b/gcc/ifcvt.c @@ -1796,7 +1796,7 @@ noce_process_if_block (test_bb, then_bb, else_bb, join_bb) insn_b = gen_sequence (); end_sequence (); - test_bb->end = emit_insn_after (insn_b, test_bb->end); + emit_insn_after (insn_b, test_bb->end); } /* Merge the blocks! */ @@ -2723,9 +2723,6 @@ if_convert (x_life_data_ok) if (rtl_dump_file) fflush (rtl_dump_file); - /* Rebuild basic_block_for_insn for update_life_info and for gcse. */ - compute_bb_for_insn (get_max_uid ()); - /* Rebuild life info for basic blocks that require it. */ if (num_removed_blocks && life_data_ok) { @@ -1251,7 +1251,7 @@ optimize_mode_switching (file) the case of EH edges, EH entry points also start in normal mode, so a similar reasoning applies. */ else if (GET_CODE (src_bb->end) == INSN) - src_bb->end = emit_insn_after (mode_set, src_bb->end); + emit_insn_after (mode_set, src_bb->end); else abort (); bb_info[j][src_bb->index].computing = mode; @@ -1313,7 +1313,7 @@ optimize_mode_switching (file) if (GET_CODE (eg->src->end) == JUMP_INSN) emit_insn_before (mode_set, eg->src->end); else if (GET_CODE (eg->src->end) == INSN) - eg->src->end = emit_insn_after (mode_set, eg->src->end); + emit_insn_after (mode_set, eg->src->end); else abort (); } @@ -1345,11 +1345,9 @@ optimize_mode_switching (file) if (GET_CODE (ptr->insn_ptr) == NOTE && (NOTE_LINE_NUMBER (ptr->insn_ptr) == NOTE_INSN_BASIC_BLOCK)) - emit_block_insn_after (mode_set, ptr->insn_ptr, - BASIC_BLOCK (ptr->bbnum)); + emit_insn_after (mode_set, ptr->insn_ptr); else - emit_block_insn_before (mode_set, ptr->insn_ptr, - BASIC_BLOCK (ptr->bbnum)); + emit_insn_before (mode_set, ptr->insn_ptr); } free (ptr); diff --git a/gcc/recog.c b/gcc/recog.c index c7d1dd7..21de5e5 100644 --- a/gcc/recog.c +++ b/gcc/recog.c @@ -2742,10 +2742,14 @@ split_all_insns (upd_life) last = split_insn (insn); if (last) { + /* The split sequence may include barrier, but the + BB boundary we are interested in will be set to previous + one. */ + + while (GET_CODE (last) == BARRIER) + last = PREV_INSN (last); SET_BIT (blocks, i); changed = 1; - if (insn == bb->end) - bb->end = last; insn = last; } @@ -2759,7 +2763,6 @@ split_all_insns (upd_life) if (changed) { - compute_bb_for_insn (get_max_uid ()); for (i = 0; i < n_basic_blocks; i++) find_sub_basic_blocks (BASIC_BLOCK (i)); } @@ -3061,14 +3064,8 @@ peephole2_optimize (dump_file) i -= MAX_INSNS_PER_PEEP2 + 1; /* Replace the old sequence with the new. */ + try = emit_insn_after (try, peep2_insn_data[i].insn); flow_delete_insn_chain (insn, peep2_insn_data[i].insn); - try = emit_insn_after (try, prev); - - /* Adjust the basic block boundaries. */ - if (peep2_insn_data[i].insn == bb->end) - bb->end = try; - if (insn == bb->head) - bb->head = NEXT_INSN (prev); #ifdef HAVE_conditional_execution /* With conditional execution, we cannot back up the diff --git a/gcc/reg-stack.c b/gcc/reg-stack.c index 2c542c6..a8a9ef1 100644 --- a/gcc/reg-stack.c +++ b/gcc/reg-stack.c @@ -964,9 +964,9 @@ emit_pop_insn (insn, regstack, reg, where) FP_MODE_REG (FIRST_STACK_REG, DFmode)); if (where == EMIT_AFTER) - pop_insn = emit_block_insn_after (pop_rtx, insn, current_block); + pop_insn = emit_insn_after (pop_rtx, insn); else - pop_insn = emit_block_insn_before (pop_rtx, insn, current_block); + pop_insn = emit_insn_before (pop_rtx, insn); REG_NOTES (pop_insn) = gen_rtx_EXPR_LIST (REG_DEAD, FP_MODE_REG (FIRST_STACK_REG, DFmode), @@ -1062,9 +1062,9 @@ emit_swap_insn (insn, regstack, reg) FP_MODE_REG (FIRST_STACK_REG, XFmode)); if (i1) - emit_block_insn_after (swap_rtx, i1, current_block); + emit_insn_after (swap_rtx, i1); else if (current_block) - emit_block_insn_before (swap_rtx, current_block->head, current_block); + emit_insn_before (swap_rtx, current_block->head); else emit_insn_before (swap_rtx, insn); } @@ -2748,7 +2748,7 @@ convert_regs_1 (file, block) set = gen_rtx_SET (VOIDmode, FP_MODE_REG (reg, SFmode), nan); - insn = emit_block_insn_after (set, insn, block); + insn = emit_insn_after (set, insn); subst_stack_regs (insn, ®stack); } } diff --git a/gcc/reload1.c b/gcc/reload1.c index c405981..32303a5 100644 --- a/gcc/reload1.c +++ b/gcc/reload1.c @@ -1266,6 +1266,7 @@ reload (first, global) /* Free all the insn_chain structures at once. */ obstack_free (&reload_obstack, reload_startobj); unused_insn_chains = 0; + compute_bb_for_insn (get_max_uid ()); fixup_abnormal_edges (); return failure; @@ -1743,6 +1743,7 @@ extern void mark_reg_pointer PARAMS ((rtx, int)); extern void mark_user_reg PARAMS ((rtx)); extern void reset_used_flags PARAMS ((rtx)); extern void reorder_insns PARAMS ((rtx, rtx, rtx)); +extern void reorder_insns_nobb PARAMS ((rtx, rtx, rtx)); extern int get_max_uid PARAMS ((void)); extern int in_sequence_p PARAMS ((void)); extern void force_next_line_note PARAMS ((void)); @@ -2121,7 +2121,7 @@ rename_equivalent_regs (reg_partition) PATTERN (insn) = XVECEXP (s, 0, slen-1); for (i = 0; i < slen - 1; i++) - emit_block_insn_before (XVECEXP (s, 0, i), insn, b); + emit_insn_before (XVECEXP (s, 0, i), insn); } } diff --git a/gcc/toplev.c b/gcc/toplev.c index d09dcca..6364305 100644 --- a/gcc/toplev.c +++ b/gcc/toplev.c @@ -2751,6 +2751,9 @@ rest_of_compilation (decl) find_basic_blocks (insns, max_reg_num (), rtl_dump_file); cleanup_cfg (CLEANUP_PRE_SIBCALL | CLEANUP_PRE_LOOP); optimize = saved_optimize; + + /* CFG is no longer maitained up-to-date. */ + free_bb_for_insn (); } current_function_nothrow = nothrow_function_p (); @@ -2859,6 +2862,9 @@ rest_of_compilation (decl) rebuild_jump_labels (insns); find_basic_blocks (insns, max_reg_num (), rtl_dump_file); cleanup_cfg ((optimize ? CLEANUP_EXPENSIVE : 0) | CLEANUP_PRE_LOOP); + + /* CFG is no longer maitained up-to-date. */ + free_bb_for_insn (); copy_loop_headers (insns); purge_line_number_notes (insns); @@ -2940,6 +2946,8 @@ rest_of_compilation (decl) timevar_pop (TV_FROM_SSA); ggc_collect (); + /* CFG is no longer maitained up-to-date. */ + free_bb_for_insn (); } timevar_push (TV_JUMP); @@ -2957,6 +2965,8 @@ rest_of_compilation (decl) if_convert (0); timevar_pop (TV_IFCVT); + /* CFG is no longer maitained up-to-date. */ + free_bb_for_insn (); /* Try to identify useless null pointer tests and delete them. */ if (flag_delete_null_pointer_checks) delete_null_pointer_checks (insns); @@ -3006,6 +3016,8 @@ rest_of_compilation (decl) find_basic_blocks (insns, max_reg_num (), rtl_dump_file); cleanup_cfg (CLEANUP_EXPENSIVE | CLEANUP_PRE_LOOP); timevar_pop (TV_JUMP); + /* CFG is no longer maitained up-to-date. */ + free_bb_for_insn (); } /* Run this after jump optmizations remove all the unreachable code @@ -3021,6 +3033,8 @@ rest_of_compilation (decl) cleanup_cfg (CLEANUP_EXPENSIVE | CLEANUP_PRE_LOOP); delete_null_pointer_checks (insns); + /* CFG is no longer maitained up-to-date. */ + free_bb_for_insn (); timevar_pop (TV_JUMP); } @@ -3059,6 +3073,8 @@ rest_of_compilation (decl) save_cfj = flag_cse_follow_jumps; flag_cse_skip_blocks = flag_cse_follow_jumps = 0; + /* CFG is no longer maitained up-to-date. */ + free_bb_for_insn (); /* If -fexpensive-optimizations, re-run CSE to clean up things done by gcse. */ if (flag_expensive_optimizations) @@ -3080,6 +3096,8 @@ rest_of_compilation (decl) delete_trivially_dead_insns (insns, max_reg_num (), 0); find_basic_blocks (insns, max_reg_num (), rtl_dump_file); cleanup_cfg (CLEANUP_EXPENSIVE | CLEANUP_PRE_LOOP); + /* CFG is no longer maitained up-to-date. */ + free_bb_for_insn (); timevar_pop (TV_JUMP); if (flag_expensive_optimizations) @@ -3105,6 +3123,7 @@ rest_of_compilation (decl) { timevar_push (TV_LOOP); open_dump_file (DFI_loop, decl); + free_bb_for_insn (); if (flag_rerun_loop_opt) { @@ -3166,6 +3185,8 @@ rest_of_compilation (decl) timevar_pop (TV_JUMP); + /* CFG is no longer maitained up-to-date. */ + free_bb_for_insn (); reg_scan (insns, max_reg_num (), 0); tem = cse_main (insns, max_reg_num (), 1, rtl_dump_file); @@ -3175,6 +3196,8 @@ rest_of_compilation (decl) rebuild_jump_labels (insns); find_basic_blocks (insns, max_reg_num (), rtl_dump_file); cleanup_cfg (CLEANUP_EXPENSIVE); + /* CFG is no longer maitained up-to-date. */ + free_bb_for_insn (); timevar_pop (TV_JUMP); } } @@ -3488,8 +3511,6 @@ rest_of_compilation (decl) verify_flow_info (); #endif - compute_bb_for_insn (get_max_uid ()); - /* If optimizing, then go ahead and split insns now. */ if (optimize > 0) split_all_insns (0); @@ -3594,7 +3615,7 @@ rest_of_compilation (decl) reg_to_stack (insns, rtl_dump_file); - close_dump_file (DFI_stack, print_rtl, insns); + close_dump_file (DFI_stack, print_rtl_with_bb, insns); timevar_pop (TV_REG_STACK); ggc_collect (); @@ -3619,6 +3640,9 @@ rest_of_compilation (decl) } compute_alignments (); + /* CFG is no longer maitained up-to-date. */ + free_bb_for_insn (); + /* If a machine dependent reorganization is needed, call it. */ #ifdef MACHINE_DEPENDENT_REORG timevar_push (TV_MACH_DEP); @@ -3632,8 +3656,6 @@ rest_of_compilation (decl) ggc_collect (); #endif - /* CFG no longer kept up to date. */ - purge_line_number_notes (insns); cleanup_barriers (); |