diff options
Diffstat (limited to 'gcc/value-range.h')
| -rw-r--r-- | gcc/value-range.h | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/gcc/value-range.h b/gcc/value-range.h index a8adc50..ff6c0a6 100644 --- a/gcc/value-range.h +++ b/gcc/value-range.h @@ -73,6 +73,7 @@ public: // In-place operators. void union_ (const irange &); void intersect (const irange &); + void intersect (const wide_int& lb, const wide_int& ub); void invert (); // Operator overloads. @@ -476,10 +477,21 @@ irange::set_varying (tree type) if (INTEGRAL_TYPE_P (type)) { + // Strict enum's require varying to be not TYPE_MIN/MAX, but rather + // min_value and max_value. wide_int min = wi::min_value (TYPE_PRECISION (type), TYPE_SIGN (type)); wide_int max = wi::max_value (TYPE_PRECISION (type), TYPE_SIGN (type)); - m_base[0] = wide_int_to_tree (type, min); - m_base[1] = wide_int_to_tree (type, max); + if (wi::eq_p (max, wi::to_wide (TYPE_MAX_VALUE (type))) + && wi::eq_p (min, wi::to_wide (TYPE_MIN_VALUE (type)))) + { + m_base[0] = TYPE_MIN_VALUE (type); + m_base[1] = TYPE_MAX_VALUE (type); + } + else + { + m_base[0] = wide_int_to_tree (type, min); + m_base[1] = wide_int_to_tree (type, max); + } } else if (POINTER_TYPE_P (type)) { |