SCEV won't work without dominators and we can get called without
dominators from debug_ranger.
Another option would be to rename scev_initialized_p to something like
scev_available_p and move the check there. For now, this will do.
Committed.
gcc/ChangeLog:
* gimple-range-fold.cc (fold_using_range::range_of_phi): Check
dom_info_available_p.
---
gcc/gimple-range-fold.cc | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/gcc/gimple-range-fold.cc b/gcc/gimple-range-fold.cc
index 997d02dd4b9..4dbf4188ec2 100644
--- a/gcc/gimple-range-fold.cc
+++ b/gcc/gimple-range-fold.cc
@@ -781,7 +781,9 @@ fold_using_range::range_of_phi (irange &r, gphi *phi,
fur_source &src)
}
// If SCEV is available, query if this PHI has any knonwn values.
- if (scev_initialized_p () && !POINTER_TYPE_P (TREE_TYPE (phi_def)))
+ if (dom_info_available_p (CDI_DOMINATORS)
+ && scev_initialized_p ()
+ && !POINTER_TYPE_P (TREE_TYPE (phi_def)))
{
value_range loop_range;
class loop *l = loop_containing_stmt (phi);
--
2.31.1
