diff options
Diffstat (limited to 'gcc/tree-vect-loop.c')
| -rw-r--r-- | gcc/tree-vect-loop.c | 31 |
1 files changed, 20 insertions, 11 deletions
diff --git a/gcc/tree-vect-loop.c b/gcc/tree-vect-loop.c index 77dcdd6137a..9ae4403f38c 100644 --- a/gcc/tree-vect-loop.c +++ b/gcc/tree-vect-loop.c @@ -3388,23 +3388,33 @@ vect_transform_loop (loop_vec_info loop_vinfo) bool strided_store; bool slp_scheduled = false; unsigned int nunits; + tree cond_expr = NULL_TREE; + gimple_seq cond_expr_stmt_list = NULL; + bool do_peeling_for_loop_bound; if (vect_print_dump_info (REPORT_DETAILS)) fprintf (vect_dump, "=== vec_transform_loop ==="); + /* Peel the loop if there are data refs with unknown alignment. + Only one data ref with unknown store is allowed. */ + + if (LOOP_PEELING_FOR_ALIGNMENT (loop_vinfo)) + vect_do_peeling_for_alignment (loop_vinfo); + + do_peeling_for_loop_bound + = (!LOOP_VINFO_NITERS_KNOWN_P (loop_vinfo) + || (LOOP_VINFO_NITERS_KNOWN_P (loop_vinfo) + && LOOP_VINFO_INT_NITERS (loop_vinfo) % vectorization_factor != 0)); + if (VEC_length (gimple, LOOP_VINFO_MAY_MISALIGN_STMTS (loop_vinfo)) || VEC_length (ddr_p, LOOP_VINFO_MAY_ALIAS_DDRS (loop_vinfo))) - vect_loop_versioning (loop_vinfo); + vect_loop_versioning (loop_vinfo, + !do_peeling_for_loop_bound, + &cond_expr, &cond_expr_stmt_list); /* CHECKME: we wouldn't need this if we called update_ssa once for all loops. */ bitmap_zero (vect_memsyms_to_rename); - - /* Peel the loop if there are data refs with unknown alignment. - Only one data ref with unknown store is allowed. */ - - if (LOOP_PEELING_FOR_ALIGNMENT (loop_vinfo)) - vect_do_peeling_for_alignment (loop_vinfo); /* If the loop has a symbolic number of iterations 'n' (i.e. it's not a compile time constant), or it is a constant that doesn't divide by the @@ -3414,10 +3424,9 @@ vect_transform_loop (loop_vec_info loop_vinfo) will remain scalar and will compute the remaining (n%VF) iterations. (VF is the vectorization factor). */ - if (!LOOP_VINFO_NITERS_KNOWN_P (loop_vinfo) - || (LOOP_VINFO_NITERS_KNOWN_P (loop_vinfo) - && LOOP_VINFO_INT_NITERS (loop_vinfo) % vectorization_factor != 0)) - vect_do_peeling_for_loop_bound (loop_vinfo, &ratio); + if (do_peeling_for_loop_bound) + vect_do_peeling_for_loop_bound (loop_vinfo, &ratio, + cond_expr, cond_expr_stmt_list); else ratio = build_int_cst (TREE_TYPE (LOOP_VINFO_NITERS (loop_vinfo)), LOOP_VINFO_INT_NITERS (loop_vinfo) / vectorization_factor); |