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);
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);
}
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:
{
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);
}
}
{
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);
}
}
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;
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))
{
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;
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))
{
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);