The pattern recognizer fends off against recognizing conversions
from VECT_SCALAR_BOOLEAN_TYPE_P to precision one types but what
it really needs to fend off is conversions between
VECT_SCALAR_BOOLEAN_TYPE_P types - the Ada FE uses an 8 bit
boolean type that satisfies this predicate.
Bootstrapped and tested on x86_64-unknown-linux-gnu, pushed.
2020-12-11 Richard Biener <rguent...@suse.de>
PR tree-optimization/95582
* tree-vect-patterns.c (vect_recog_bool_pattern): Check
for VECT_SCALAR_BOOLEAN_TYPE_P, not just precision one.
---
gcc/tree-vect-patterns.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/gcc/tree-vect-patterns.c b/gcc/tree-vect-patterns.c
index f2ce75aac3e..bf57c49bf04 100644
--- a/gcc/tree-vect-patterns.c
+++ b/gcc/tree-vect-patterns.c
@@ -4067,7 +4067,7 @@ vect_recog_bool_pattern (vec_info *vinfo,
|| rhs_code == VIEW_CONVERT_EXPR)
{
if (! INTEGRAL_TYPE_P (TREE_TYPE (lhs))
- || TYPE_PRECISION (TREE_TYPE (lhs)) == 1)
+ || VECT_SCALAR_BOOLEAN_TYPE_P (TREE_TYPE (lhs)))
return NULL;
vectype = get_vectype_for_scalar_type (vinfo, TREE_TYPE (lhs));
if (vectype == NULL_TREE)
--
2.26.2
