OpenE2K
/
gcc
2
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

df-problems.c (df_note_bb_compute): Made computation of live info consistent with df_lr. 

2007-06-21  Kenneth Zadeck <zadeck@naturalbridge.com>

        * df-problems.c (df_note_bb_compute): Made computation of live
	info consistent with df_lr.

From-SVN: r125924
This commit is contained in:
Kenneth Zadeck 2007-06-21 16:24:59 +00:00 committed by Kenneth Zadeck
parent 4228997795
commit e44e043cb3
2 changed files with 16 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
gcc/ChangeLog
View File

@ -1,3 +1,8 @@
2007-06-21 Kenneth Zadeck <zadeck@naturalbridge.com>
* df-problems.c (df_note_bb_compute): Made computation of live
info consistent with df_lr.
2007-06-21 Richard Guenther <rguenther@suse.de>
PR tree-optimization/32453

13
gcc/df-problems.c
View File

@ -46,6 +46,9 @@ Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
#include "dce.h"
#include "vecprim.h"
/* Note that turning REG_DEAD_DEBUGGING on will cause
gcc.c-torture/unsorted/dump-noaddr.c to fail because it prints
addresses in the dumps. */
#if 0
#define REG_DEAD_DEBUGGING
#endif
@ -3960,8 +3963,8 @@ df_note_bb_compute (unsigned int bb_index,
df_print_regset (dump_file, live);
}
#endif
/* We only care about real sets for calls. Clobbers only
may clobbers cannot be depended on. */
/* We only care about real sets for calls. Clobbers cannot
be depended on to really die. */
mws_rec = DF_INSN_UID_MWS (uid);
while (*mws_rec)
{
@ -3985,6 +3988,12 @@ df_note_bb_compute (unsigned int bb_index,
= df_create_unused_note (insn, old_unused_notes,
def, live, do_not_gen,
artificial_uses);
/* However a may or must clobber still needs to kill the
reg so that REG_DEAD notes are later placed
appropriately. */
else
bitmap_clear_bit (live, DF_REF_REGNO (def));
}
}
else