diff options
Diffstat (limited to 'gcc/dce.c')
| -rw-r--r-- | gcc/dce.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/gcc/dce.c b/gcc/dce.c index 9a42da761c2..efc26222e7e 100644 --- a/gcc/dce.c +++ b/gcc/dce.c @@ -1,5 +1,5 @@ /* RTL dead code elimination. - Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011 + Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 Free Software Foundation, Inc. This file is part of GCC. @@ -724,7 +724,7 @@ init_dce (bool fast) can_alter_cfg = true; marked = sbitmap_alloc (get_max_uid () + 1); - sbitmap_zero (marked); + bitmap_clear (marked); } @@ -880,7 +880,10 @@ word_dce_process_block (basic_block bb, bool redo_out, for (def_rec = DF_INSN_DEFS (insn); *def_rec; def_rec++) dead_debug_insert_temp (&debug, DF_REF_REGNO (*def_rec), insn, - DEBUG_TEMP_BEFORE_WITH_VALUE); + marked_insn_p (insn) + && !control_flow_insn_p (insn) + ? DEBUG_TEMP_AFTER_WITH_REG_FORCE + : DEBUG_TEMP_BEFORE_WITH_VALUE); } if (dump_file) @@ -981,7 +984,9 @@ dce_process_block (basic_block bb, bool redo_out, bitmap au, if (debug.used && !bitmap_empty_p (debug.used)) for (def_rec = DF_INSN_DEFS (insn); *def_rec; def_rec++) dead_debug_insert_temp (&debug, DF_REF_REGNO (*def_rec), insn, - DEBUG_TEMP_BEFORE_WITH_VALUE); + needed && !control_flow_insn_p (insn) + ? DEBUG_TEMP_AFTER_WITH_REG_FORCE + : DEBUG_TEMP_BEFORE_WITH_VALUE); } dead_debug_local_finish (&debug, NULL); @@ -1082,7 +1087,7 @@ fast_dce (bool word_level) /* So something was deleted that requires a redo. Do it on the cheap. */ delete_unmarked_insns (); - sbitmap_zero (marked); + bitmap_clear (marked); bitmap_clear (processed); bitmap_clear (redo_out); |