diff options
Diffstat (limited to 'gcc-4.9/gcc/tree-vrp.c')
| -rw-r--r-- | gcc-4.9/gcc/tree-vrp.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/gcc-4.9/gcc/tree-vrp.c b/gcc-4.9/gcc/tree-vrp.c index b31194410..fb3e05d85 100644 --- a/gcc-4.9/gcc/tree-vrp.c +++ b/gcc-4.9/gcc/tree-vrp.c @@ -7172,7 +7172,7 @@ vrp_evaluate_conditional (enum tree_code code, tree op0, tree op1, gimple stmt) tree type = TREE_TYPE (op0); value_range_t *vr0 = get_value_range (op0); - if (vr0->type != VR_VARYING + if (vr0->type == VR_RANGE && INTEGRAL_TYPE_P (type) && vrp_val_is_min (vr0->min) && vrp_val_is_max (vr0->max) @@ -9377,8 +9377,10 @@ simplify_internal_call_using_ranges (gimple_stmt_iterator *gsi, gimple stmt) } else { - tree r1 = int_const_binop (subcode, vr0.min, vr1.min); - tree r2 = int_const_binop (subcode, vr0.max, vr1.max); + tree r1 = int_const_binop (subcode, vr0.min, + subcode == MINUS_EXPR ? vr1.max : vr1.min); + tree r2 = int_const_binop (subcode, vr0.max, + subcode == MINUS_EXPR ? vr1.min : vr1.max); if (r1 == NULL_TREE || TREE_OVERFLOW (r1) || r2 == NULL_TREE || TREE_OVERFLOW (r2)) return false; |