Adds a check to ensure that the input vector arguments
to a function are not variable length. Previously, only the
output vector of a function was checked.
The ICE in question is within the neon-sve-bridge.c test,
and is related to https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111268
gcc/ChangeLog:
* tree-vect-slp.cc (vectorizable_slp_permutation_1):
Add variable-length check for vector input arguments
to a function.diff --git a/gcc/tree-vect-slp.cc b/gcc/tree-vect-slp.cc
index 086377a9ac08528880c90bee3b1d1e08341a6288..7cf9504398c98cccfdba3b91c3e995f73f8b5d50 100644
--- a/gcc/tree-vect-slp.cc
+++ b/gcc/tree-vect-slp.cc
@@ -8987,7 +8987,8 @@ vectorizable_slp_permutation_1 (vec_info *vinfo, gimple_stmt_iterator *gsi,
{
/* Calculate every element of every permute mask vector explicitly,
instead of relying on the pattern described above. */
- if (!nunits.is_constant (&npatterns))
+ if (!nunits.is_constant (&npatterns)
+ || !TYPE_VECTOR_SUBPARTS (op_vectype).is_constant ())
return -1;
nelts_per_pattern = ncopies = 1;
if (loop_vec_info linfo = dyn_cast <loop_vec_info> (vinfo))
