diff options
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/tree-vrp.c | 16 |
2 files changed, 14 insertions, 8 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 76db5d5..de0acb9 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2018-11-30 Richard Biener <rguenther@suse.de> + + PR tree-optimization/88274 + * tree-vrp.c (ranges_from_anti_range): Fix handling of + TYPE_MIN/MAX_VALUE. + 2018-11-29 Andi Kleen <ak@linux.intel.com> * config/i386/i386.c (current_fentry_section): Add. diff --git a/gcc/tree-vrp.c b/gcc/tree-vrp.c index eb4d5b0..aa6309e 100644 --- a/gcc/tree-vrp.c +++ b/gcc/tree-vrp.c @@ -1249,14 +1249,14 @@ ranges_from_anti_range (const value_range_base *ar, || !vrp_val_max (type)) return false; - if (!vrp_val_is_min (ar->min ())) - *vr0 = value_range (VR_RANGE, - vrp_val_min (type), - wide_int_to_tree (type, wi::to_wide (ar->min ()) - 1)); - if (!vrp_val_is_max (ar->max ())) - *vr1 = value_range (VR_RANGE, - wide_int_to_tree (type, wi::to_wide (ar->max ()) + 1), - vrp_val_max (type)); + if (tree_int_cst_lt (vrp_val_min (type), ar->min ())) + vr0->set (VR_RANGE, + vrp_val_min (type), + wide_int_to_tree (type, wi::to_wide (ar->min ()) - 1)); + if (tree_int_cst_lt (ar->max (), vrp_val_max (type))) + vr1->set (VR_RANGE, + wide_int_to_tree (type, wi::to_wide (ar->max ()) + 1), + vrp_val_max (type)); if (vr0->undefined_p ()) { *vr0 = *vr1; |