diff options
| author | Richard Biener <rguenth@gcc.gnu.org> | 2019-10-29 13:46:19 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2019-10-29 13:46:19 +0000 |
| commit | 318bd8c60d83ca294b237559908dd9f88ee7c300 (patch) | |
| tree | e7d041c184dd85ef4125c4541f0697a6fb8d5acb /gcc/tree-vect-slp.c | |
| parent | 97c146036750e7cb3966d292572ec158a78f356e (diff) | |
re PR tree-optimization/92260 (ICE in exact_div, at poly-int.h:2162)
2019-10-29 Richard Biener <rguenther@suse.de>
PR tree-optimization/92260
* tree-vect-slp.c (vect_get_constant_vectors): Special-case
lane-reducing ops.
* gcc.dg/pr92260.c: New testcase.
From-SVN: r277571
Diffstat (limited to 'gcc/tree-vect-slp.c')
| -rw-r--r-- | gcc/tree-vect-slp.c | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/gcc/tree-vect-slp.c b/gcc/tree-vect-slp.c index b75594c36e9..9d65471ae70 100644 --- a/gcc/tree-vect-slp.c +++ b/gcc/tree-vect-slp.c @@ -3395,10 +3395,19 @@ vect_get_constant_vectors (slp_tree op_node, slp_tree slp_node, else vector_type = get_vectype_for_scalar_type (vinfo, TREE_TYPE (op)); - unsigned int number_of_vectors - = vect_get_num_vectors (SLP_TREE_NUMBER_OF_VEC_STMTS (slp_node) - * TYPE_VECTOR_SUBPARTS (stmt_vectype), - vector_type); + /* ??? For lane-reducing ops we should also have the required number + of vector stmts initialized rather than second-guessing here. */ + unsigned int number_of_vectors; + if (is_gimple_assign (stmt_vinfo->stmt) + && (gimple_assign_rhs_code (stmt_vinfo->stmt) == SAD_EXPR + || gimple_assign_rhs_code (stmt_vinfo->stmt) == DOT_PROD_EXPR + || gimple_assign_rhs_code (stmt_vinfo->stmt) == WIDEN_SUM_EXPR)) + number_of_vectors = SLP_TREE_NUMBER_OF_VEC_STMTS (slp_node); + else + number_of_vectors + = vect_get_num_vectors (SLP_TREE_NUMBER_OF_VEC_STMTS (slp_node) + * TYPE_VECTOR_SUBPARTS (stmt_vectype), + vector_type); vec_oprnds->create (number_of_vectors); auto_vec<tree> voprnds (number_of_vectors); |