diff options
Diffstat (limited to 'gcc/dce.c')
| -rw-r--r-- | gcc/dce.c | 32 |
1 files changed, 16 insertions, 16 deletions
diff --git a/gcc/dce.c b/gcc/dce.c index a2c6973f53f..855bef32237 100644 --- a/gcc/dce.c +++ b/gcc/dce.c @@ -622,7 +622,7 @@ mark_artificial_uses (void) FOR_ALL_BB (bb) { - for (use_rec = df_get_artificial_uses (bb->index); + for (use_rec = df_get_artificial_uses (bb->index); *use_rec; use_rec++) for (defs = DF_REF_CHAIN (*use_rec); defs; defs = defs->next) if (! DF_REF_IS_ARTIFICIAL (defs->ref)) @@ -825,7 +825,7 @@ byte_dce_process_block (basic_block bb, bool redo_out, bitmap au) mark_insn (insn, true); goto quickexit; } - + last = start + len; while (start < last) if (bitmap_bit_p (local_live, start++)) @@ -834,9 +834,9 @@ byte_dce_process_block (basic_block bb, bool redo_out, bitmap au) goto quickexit; } } - - quickexit: - + + quickexit: + /* No matter if the instruction is needed or not, we remove any regno in the defs from the live set. */ df_byte_lr_simulate_defs (insn, local_live); @@ -848,12 +848,12 @@ byte_dce_process_block (basic_block bb, bool redo_out, bitmap au) if (dump_file) { - fprintf (dump_file, "finished processing insn %d live out = ", + fprintf (dump_file, "finished processing insn %d live out = ", INSN_UID (insn)); df_print_byte_regset (dump_file, local_live); } } - + df_byte_lr_simulate_artificial_refs_at_top (bb, local_live); block_changed = !bitmap_equal_p (local_live, DF_BYTE_LR_IN (bb)); @@ -913,10 +913,10 @@ dce_process_block (basic_block bb, bool redo_out, bitmap au) needed = true; break; } - + if (needed) mark_insn (insn, true); - + /* No matter if the instruction is needed or not, we remove any regno in the defs from the live set. */ df_simulate_defs (insn, local_live); @@ -926,7 +926,7 @@ dce_process_block (basic_block bb, bool redo_out, bitmap au) if (marked_insn_p (insn)) df_simulate_uses (insn, local_live); } - + df_simulate_finalize_backwards (bb, local_live); block_changed = !bitmap_equal_p (local_live, DF_LR_IN (bb)); @@ -986,15 +986,15 @@ fast_dce (bool byte_level) } if (byte_level) - local_changed + local_changed = byte_dce_process_block (bb, bitmap_bit_p (redo_out, index), bb_has_eh_pred (bb) ? au_eh : au); else - local_changed + local_changed = dce_process_block (bb, bitmap_bit_p (redo_out, index), bb_has_eh_pred (bb) ? au_eh : au); bitmap_set_bit (processed, index); - + if (local_changed) { edge e; @@ -1010,7 +1010,7 @@ fast_dce (bool byte_level) bitmap_set_bit (redo_out, e->src->index); } } - + if (global_changed) { /* Turn off the RUN_DCE flag to prevent recursive calls to @@ -1023,11 +1023,11 @@ fast_dce (bool byte_level) sbitmap_zero (marked); bitmap_clear (processed); bitmap_clear (redo_out); - + /* We do not need to rescan any instructions. We only need to redo the dataflow equations for the blocks that had a change at the top of the block. Then we need to redo the - iteration. */ + iteration. */ if (byte_level) df_analyze_problem (df_byte_lr, all_blocks, postorder, n_blocks); else |