diff options
Diffstat (limited to 'gcc/tree-vect-generic.cc')
| -rw-r--r-- | gcc/tree-vect-generic.cc | 41 |
1 files changed, 27 insertions, 14 deletions
diff --git a/gcc/tree-vect-generic.cc b/gcc/tree-vect-generic.cc index 12a553ec8be..8b7227e8b58 100644 --- a/gcc/tree-vect-generic.cc +++ b/gcc/tree-vect-generic.cc @@ -317,8 +317,11 @@ expand_vector_piecewise (gimple_stmt_iterator *gsi, elem_op_func f, int i; location_t loc = gimple_location (gsi_stmt (*gsi)); - if (nunits == 1) - /* Do not diagnose decomposing single element vectors. */ + if (nunits == 1 + || warning_suppressed_p (gsi_stmt (*gsi), + OPT_Wvector_operation_performance)) + /* Do not diagnose decomposing single element vectors or when + decomposing vectorizer produced operations. */ ; else if (ret_type || !parallel_p) warning_at (loc, OPT_Wvector_operation_performance, @@ -379,14 +382,16 @@ expand_vector_parallel (gimple_stmt_iterator *gsi, elem_op_func f, tree type, else { /* Use a single scalar operation with a mode no wider than word_mode. */ + if (!warning_suppressed_p (gsi_stmt (*gsi), + OPT_Wvector_operation_performance)) + warning_at (loc, OPT_Wvector_operation_performance, + "vector operation will be expanded with a " + "single scalar operation"); scalar_int_mode mode = int_mode_for_size (tree_to_uhwi (TYPE_SIZE (type)), 0).require (); compute_type = lang_hooks.types.type_for_mode (mode, 1); result = f (gsi, compute_type, a, b, bitsize_zero_node, TYPE_SIZE (compute_type), code, type); - warning_at (loc, OPT_Wvector_operation_performance, - "vector operation will be expanded with a " - "single scalar operation"); } return result; @@ -487,8 +492,10 @@ expand_vector_comparison (gimple_stmt_iterator *gsi, tree type, tree op0, if (TYPE_PRECISION (ret_inner_type) != 1) ret_inner_type = build_nonstandard_integer_type (1, 1); - warning_at (loc, OPT_Wvector_operation_performance, - "vector operation will be expanded piecewise"); + if (!warning_suppressed_p (gsi_stmt (*gsi), + OPT_Wvector_operation_performance)) + warning_at (loc, OPT_Wvector_operation_performance, + "vector operation will be expanded piecewise"); for (i = 0; i < nunits; i++, index = int_const_binop (PLUS_EXPR, index, part_width)) { @@ -1098,8 +1105,9 @@ expand_vector_condition (gimple_stmt_iterator *gsi, bitmap dce_ssa_names) /* TODO: try and find a smaller vector type. */ - warning_at (loc, OPT_Wvector_operation_performance, - "vector condition will be expanded piecewise"); + if (!warning_suppressed_p (stmt, OPT_Wvector_operation_performance)) + warning_at (loc, OPT_Wvector_operation_performance, + "vector condition will be expanded piecewise"); if (!a_is_comparison && VECTOR_BOOLEAN_TYPE_P (TREE_TYPE (a)) @@ -1591,9 +1599,10 @@ lower_vec_perm (gimple_stmt_iterator *gsi) } else if (can_vec_perm_var_p (TYPE_MODE (vect_type))) return; - - warning_at (loc, OPT_Wvector_operation_performance, - "vector shuffling operation will be expanded piecewise"); + + if (!warning_suppressed_p (stmt, OPT_Wvector_operation_performance)) + warning_at (loc, OPT_Wvector_operation_performance, + "vector shuffling operation will be expanded piecewise"); vec_alloc (v, elements); bool constant_p = true; @@ -2029,8 +2038,12 @@ expand_vector_conversion (gimple_stmt_iterator *gsi) location_t loc = gimple_location (gsi_stmt (*gsi)); if (compute_type != arg_type) - warning_at (loc, OPT_Wvector_operation_performance, - "vector operation will be expanded piecewise"); + { + if (!warning_suppressed_p (gsi_stmt (*gsi), + OPT_Wvector_operation_performance)) + warning_at (loc, OPT_Wvector_operation_performance, + "vector operation will be expanded piecewise"); + } else { nunits = 1; |