diff options
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 7 | ||||
| -rw-r--r-- | gcc/tree-vect-data-refs.c | 5 | ||||
| -rw-r--r-- | gcc/tree-vect-stmts.c | 17 |
3 files changed, 25 insertions, 4 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 9933288..bb20e58 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,10 @@ +2012-05-14 Richard Guenther <rguenther@suse.de> + + PR tree-optimization/53331 + * tree-vect-data-refs.c (vect_verify_datarefs_alignment): Ignore + strided loads. + * tree-vect-stmts.c (vect_model_load_cost): Handle strided loads. + 2012-05-14 Manuel López-Ibáñez <manu@gcc.gnu.org> PR 53063 diff --git a/gcc/tree-vect-data-refs.c b/gcc/tree-vect-data-refs.c index e536321..1a87d1e 100644 --- a/gcc/tree-vect-data-refs.c +++ b/gcc/tree-vect-data-refs.c @@ -1078,6 +1078,11 @@ vect_verify_datarefs_alignment (loop_vec_info loop_vinfo, bb_vec_info bb_vinfo) || !STMT_VINFO_VECTORIZABLE (stmt_info)) continue; + /* Strided loads perform only component accesses, alignment is + irrelevant for them. */ + if (STMT_VINFO_STRIDE_LOAD_P (stmt_info)) + continue; + supportable_dr_alignment = vect_supportable_dr_alignment (dr, false); if (!supportable_dr_alignment) { diff --git a/gcc/tree-vect-stmts.c b/gcc/tree-vect-stmts.c index 88204fe..bdb6828 100644 --- a/gcc/tree-vect-stmts.c +++ b/gcc/tree-vect-stmts.c @@ -1032,10 +1032,19 @@ vect_model_load_cost (stmt_vec_info stmt_info, int ncopies, bool load_lanes_p, } /* The loads themselves. */ - vect_get_load_cost (first_dr, ncopies, - ((!STMT_VINFO_GROUPED_ACCESS (stmt_info)) || group_size > 1 - || slp_node), - &inside_cost, &outside_cost); + if (STMT_VINFO_STRIDE_LOAD_P (stmt_info)) + { + /* N scalar loads plus gathering them into a vector. + ??? scalar_to_vec isn't the cost for that. */ + inside_cost += (vect_get_stmt_cost (scalar_load) * ncopies + * TYPE_VECTOR_SUBPARTS (STMT_VINFO_VECTYPE (stmt_info))); + inside_cost += ncopies * vect_get_stmt_cost (scalar_to_vec); + } + else + vect_get_load_cost (first_dr, ncopies, + ((!STMT_VINFO_GROUPED_ACCESS (stmt_info)) + || group_size > 1 || slp_node), + &inside_cost, &outside_cost); if (vect_print_dump_info (REPORT_COST)) fprintf (vect_dump, "vect_model_load_cost: inside_cost = %d, " |