tree-vrp.c (update_value_range): Intersect the range with old recorded SSA name range information.
2015-01-27 Richard Biener <rguenther@suse.de> * tree-vrp.c (update_value_range): Intersect the range with old recorded SSA name range information. From-SVN: r220164
This commit is contained in:
parent
eb42aba984
commit
755359b75e
|
@ -1,3 +1,8 @@
|
|||
2015-01-27 Richard Biener <rguenther@suse.de>
|
||||
|
||||
* tree-vrp.c (update_value_range): Intersect the range with
|
||||
old recorded SSA name range information.
|
||||
|
||||
2015-01-27 Nick Clifton <nickc@redhat.com>
|
||||
|
||||
* config/rl78/rl78.c (rl78_expand_prologue): In G10 mode push the
|
||||
|
|
|
@ -847,6 +847,23 @@ update_value_range (const_tree var, value_range_t *new_vr)
|
|||
value_range_t *old_vr;
|
||||
bool is_new;
|
||||
|
||||
/* If there is a value-range on the SSA name from earlier analysis
|
||||
factor that in. */
|
||||
if (INTEGRAL_TYPE_P (TREE_TYPE (var)))
|
||||
{
|
||||
wide_int min, max;
|
||||
value_range_type rtype = get_range_info (var, &min, &max);
|
||||
if (rtype == VR_RANGE || rtype == VR_ANTI_RANGE)
|
||||
{
|
||||
value_range_d nr;
|
||||
nr.type = rtype;
|
||||
nr.min = wide_int_to_tree (TREE_TYPE (var), min);
|
||||
nr.max = wide_int_to_tree (TREE_TYPE (var), max);
|
||||
nr.equiv = NULL;
|
||||
vrp_intersect_ranges (new_vr, &nr);
|
||||
}
|
||||
}
|
||||
|
||||
/* Update the value range, if necessary. */
|
||||
old_vr = get_value_range (var);
|
||||
is_new = old_vr->type != new_vr->type
|
||||
|
|
Loading…
Reference in New Issue