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

re PR debug/42861 (Spill slots not tracked during var-tracking) 

PR debug/42861
	* var-tracking.c (val_store): Add modified argument, obey it.
	Adjust callers.
	(count_uses): Move down logging of main.
	(compute_bb_dataflow): Use val_store for MO_VAL_USEs that
	don't need resolution.
	(emit_notes_in_bb): Likewise.

From-SVN: r156292
This commit is contained in:
Alexandre Oliva 2010-01-27 16:36:57 +00:00 committed by Jakub Jelinek
parent e87da26377
commit fb4cbb9f9e
2 changed files with 33 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
gcc/ChangeLog
View File

@ -1,3 +1,13 @@
2010-01-27 Alexandre Oliva <aoliva@redhat.com>
PR debug/42861
* var-tracking.c (val_store): Add modified argument, obey it.
Adjust callers.
(count_uses): Move down logging of main.
(compute_bb_dataflow): Use val_store for MO_VAL_USEs that
don't need resolution.
(emit_notes_in_bb): Likewise.
2010-01-27 Richard Guenther <rguenther@suse.de>
PR middle-end/42878

34
gcc/var-tracking.c
View File

@ -1518,10 +1518,12 @@ var_mem_delete (dataflow_set *set, rtx loc, bool clobber)
delete_variable_part (set, loc, dv_from_decl (decl), offset);
}
/* Map a value to a location it was just stored in. */
/* Bind a value to a location it was just stored in. If MODIFIED
holds, assume the location was modified, detaching it from any
values bound to it. */
static void
val_store (dataflow_set *set, rtx val, rtx loc, rtx insn)
val_store (dataflow_set *set, rtx val, rtx loc, rtx insn, bool modified)
{
cselib_val *v = CSELIB_VAL_PTR (val);
@ -1547,7 +1549,8 @@ val_store (dataflow_set *set, rtx val, rtx loc, rtx insn)
if (REG_P (loc))
{
var_regno_delete (set, REGNO (loc));
if (modified)
var_regno_delete (set, REGNO (loc));
var_reg_decl_set (set, loc, VAR_INIT_STATUS_INITIALIZED,
dv_from_value (val), 0, NULL_RTX, INSERT);
}
@ -4530,11 +4533,6 @@ count_uses (rtx *ploc, void *cuip)
cselib_val *val;
enum machine_mode mode = GET_MODE (loc);
VTI (cui->bb)->n_mos++;
if (dump_file && (dump_flags & TDF_DETAILS))
log_op_type (loc, cui->bb, cui->insn, mopt, dump_file);
switch (mopt)
{
case MO_VAL_LOC:
@ -4550,12 +4548,15 @@ count_uses (rtx *ploc, void *cuip)
{
enum machine_mode address_mode
= targetm.addr_space.address_mode (MEM_ADDR_SPACE (loc));
val = cselib_lookup (XEXP (loc, 0), address_mode, false);
val = cselib_lookup (XEXP (loc, 0), address_mode, 0);
if (val && !cselib_preserved_value_p (val))
{
VTI (cui->bb)->n_mos++;
cselib_preserve_value (val);
if (dump_file && (dump_flags & TDF_DETAILS))
log_op_type (XEXP (loc, 0), cui->bb, cui->insn,
MO_VAL_USE, dump_file);
}
}
@ -4578,6 +4579,9 @@ count_uses (rtx *ploc, void *cuip)
{
VTI (cui->bb)->n_mos++;
cselib_preserve_value (oval);
if (dump_file && (dump_flags & TDF_DETAILS))
log_op_type (loc, cui->bb, cui->insn,
MO_VAL_USE, dump_file);
}
}
@ -4592,6 +4596,10 @@ count_uses (rtx *ploc, void *cuip)
default:
break;
}
VTI (cui->bb)->n_mos++;
if (dump_file && (dump_flags & TDF_DETAILS))
log_op_type (loc, cui->bb, cui->insn, mopt, dump_file);
}
return 0;
@ -5331,6 +5339,8 @@ compute_bb_dataflow (basic_block bb)
if (VAL_NEEDS_RESOLUTION (loc))
val_resolve (out, val, vloc, insn);
else
val_store (out, val, uloc, insn, false);
if (VAL_HOLDS_TRACK_EXPR (loc))
{
@ -5422,7 +5432,7 @@ compute_bb_dataflow (basic_block bb)
else if (REG_P (uloc))
var_regno_delete (out, REGNO (uloc));
val_store (out, val, vloc, insn);
val_store (out, val, vloc, insn, true);
}
break;
@ -6951,6 +6961,8 @@ emit_notes_in_bb (basic_block bb, dataflow_set *set)
if (VAL_NEEDS_RESOLUTION (loc))
val_resolve (set, val, vloc, insn);
else
val_store (set, val, uloc, insn, false);
if (VAL_HOLDS_TRACK_EXPR (loc))
{
@ -7038,7 +7050,7 @@ emit_notes_in_bb (basic_block bb, dataflow_set *set)
else if (REG_P (uloc))
var_regno_delete (set, REGNO (uloc));
val_store (set, val, vloc, insn);
val_store (set, val, vloc, insn, true);
emit_notes_for_changes (NEXT_INSN (insn), EMIT_NOTE_BEFORE_INSN,
set->vars);