mirror/gcc
2
0
Fork 0
mirror of git://gcc.gnu.org/git/gcc.git synced 2025-03-30 23:11:09 +08:00
Code Issues Packages Projects Releases Wiki Activity

re PR middle-end/32749 (gfortran.dg/auto_array_1.f90)

Browse Source 
2007-07-26  Kenneth Zadeck <zadeck@naturalbridge.com>

	PR middle-end/32749
	
	* df-problems.c (df_create_unused_note): Removed do_not_gen parm
	and the updating of the live and do_not_gen sets.
	(df_note_bb_compute): Added updating of live and do_not_gen sets
	for regular defs so that the case of clobber inside conditional
	call is processed correctly.

From-SVN: r126987
This commit is contained in:
Kenneth Zadeck 2007-07-27 17:22:14 +00:00
parent 83144bd60c
commit e4142b7c1b
2 changed files with 35 additions and 26 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
gcc/ChangeLog
View File

@ -1,3 +1,13 @@
2007-07-26 Kenneth Zadeck <zadeck@naturalbridge.com>
PR middle-end/32749
* df-problems.c (df_create_unused_note): Removed do_not_gen parm
and the updating of the live and do_not_gen sets.
(df_note_bb_compute): Added updating of live and do_not_gen sets
for regular defs so that the case of clobber inside conditional
call is processed correctly.
2007-07-27 Zdenek Dvorak <dvorakz@suse.cz>
* config/rs6000/rs6000.c (rs6000_gimplify_va_arg): Generate the
@ -12517,7 +12527,7 @@
* c-common.c (warn_logical_operator): Fix condition.
2007-03-10 Tobias Schl<EFBFBD>ter <tobi@gcc.gnu.org>
2007-03-10 Tobias Schl�ter <tobi@gcc.gnu.org>
* config/i386/darwin.h (DARWIN_MINVERSION_SPEC): Add missing
quotation mark.
@ -19659,7 +19669,7 @@
* langhooks.h (struct lang_hooks): Removed field
'can_use_bit_fields_p'.
2007-01-10 Ralf Corsépius <ralf.corsepius@rtems.org>
2007-01-10 Ralf Corsépius <ralf.corsepius@rtems.org>
* config/bfin/t-bfin, config/bfin/t-bfin-elf: Remove GCC_CFLAGS.
@ -19888,7 +19898,7 @@
* config/frv/predicates.md (reg_or_0_operand): Accept
CONST_DOUBLEs.
2007-01-08 Ralf Corsépius <ralf.corsepius@rtems.org>
2007-01-08 Ralf Corsépius <ralf.corsepius@rtems.org>
* config/bfin/rtems.h, config/bfin/t-rtems: New.
* config.gcc: Add bfin*-rtems*.

45
gcc/df-problems.c
View File

@ -3868,13 +3868,12 @@ df_set_dead_notes_for_mw (rtx insn, rtx old, struct df_mw_hardreg *mws,
}
/* Create a REG_UNUSED note if necessary for DEF in INSN updating LIVE
and DO_NOT_GEN. Do not generate notes for registers in artificial
uses. */
/* Create a REG_UNUSED note if necessary for DEF in INSN updating
LIVE. Do not generate notes for registers in ARTIFICIAL_USES. */
static rtx
df_create_unused_note (rtx insn, rtx old, struct df_ref *def,
bitmap live, bitmap do_not_gen, bitmap artificial_uses)
bitmap live, bitmap artificial_uses)
{
unsigned int dregno = DF_REF_REGNO (def);
@ -3899,12 +3898,6 @@ df_create_unused_note (rtx insn, rtx old, struct df_ref *def,
#endif
}
if (!(DF_REF_FLAGS (def) & (DF_REF_MUST_CLOBBER + DF_REF_MAY_CLOBBER)))
bitmap_set_bit (do_not_gen, dregno);
/* Kill this register if it is not a subreg store or conditional store. */
if (!(DF_REF_FLAGS (def) & (DF_REF_PARTIAL | DF_REF_CONDITIONAL)))
bitmap_clear_bit (live, dregno);
return old;
}
@ -3915,7 +3908,7 @@ df_create_unused_note (rtx insn, rtx old, struct df_ref *def,
static void
df_note_bb_compute (unsigned int bb_index,
bitmap live, bitmap do_not_gen, bitmap artificial_uses)
bitmap live, bitmap do_not_gen, bitmap artificial_uses)
{
basic_block bb = BASIC_BLOCK (bb_index);
rtx insn;
@ -4012,17 +4005,17 @@ df_note_bb_compute (unsigned int bb_index,
for (def_rec = DF_INSN_UID_DEFS (uid); *def_rec; def_rec++)
{
struct df_ref *def = *def_rec;
if (!(DF_REF_FLAGS (def) & (DF_REF_MUST_CLOBBER | DF_REF_MAY_CLOBBER)))
old_unused_notes
= df_create_unused_note (insn, old_unused_notes,
def, live, do_not_gen,
artificial_uses);
unsigned int dregno = DF_REF_REGNO (def);
if (!DF_REF_FLAGS_IS_SET (def, DF_REF_MUST_CLOBBER | DF_REF_MAY_CLOBBER))
{
old_unused_notes
= df_create_unused_note (insn, old_unused_notes,
def, live, artificial_uses);
bitmap_set_bit (do_not_gen, dregno);
}
/* 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));
if (!DF_REF_FLAGS_IS_SET (def, DF_REF_PARTIAL | DF_REF_CONDITIONAL))
bitmap_clear_bit (live, dregno);
}
}
else
@ -4043,10 +4036,16 @@ df_note_bb_compute (unsigned int bb_index,
for (def_rec = DF_INSN_UID_DEFS (uid); *def_rec; def_rec++)
{
struct df_ref *def = *def_rec;
unsigned int dregno = DF_REF_REGNO (def);
old_unused_notes
= df_create_unused_note (insn, old_unused_notes,
def, live, do_not_gen,
artificial_uses);
def, live, artificial_uses);
if (!DF_REF_FLAGS_IS_SET (def, DF_REF_MUST_CLOBBER | DF_REF_MAY_CLOBBER))
bitmap_set_bit (do_not_gen, dregno);
if (!DF_REF_FLAGS_IS_SET (def, DF_REF_PARTIAL | DF_REF_CONDITIONAL))
bitmap_clear_bit (live, dregno);
}
}