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X-OriginatorOrg: arm.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 26 Jun 2023 15:34:39.8774 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: cf34258e-75aa-4321-bc66-08db765adb2d X-MS-Exchange-CrossTenant-Id: f34e5979-57d9-4aaa-ad4d-b122a662184d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=f34e5979-57d9-4aaa-ad4d-b122a662184d;Ip=[63.35.35.123];Helo=[64aa7808-outbound-1.mta.getcheckrecipient.com] X-MS-Exchange-CrossTenant-AuthSource: AM7EUR03FT039.eop-EUR03.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DBBPR08MB6140 X-Spam-Status: No, score=-11.7 required=5.0 tests=BAYES_00,DKIM_SIGNED,DKIM_VALID,FORGED_SPF_HELO,GIT_PATCH_0,KAM_DMARC_NONE,KAM_LOTSOFHASH,RCVD_IN_DNSWL_NONE,RCVD_IN_MSPIKE_H2,SPF_HELO_PASS,SPF_NONE,TXREP,T_SCC_BODY_TEXT_LINE,UNPARSEABLE_RELAY autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org List-Id: From: oluade01 This updates vect_recog_abd_pattern to recognize the widening variant of absolute difference (ABDL, ABDL2). gcc/ChangeLog: * internal-fn.cc (widening_fn_p, decomposes_to_hilo_fn_p): Add IFN_VEC_WIDEN_ABD to the switch statement. * internal-fn.def (VEC_WIDEN_ABD): New internal hilo optab. * optabs.def (vec_widen_sabd_optab, vec_widen_sabd_hi_optab, vec_widen_sabd_lo_optab, vec_widen_sabd_odd_even, vec_widen_sabd_even_optab, vec_widen_uabd_optab, vec_widen_uabd_hi_optab, vec_widen_uabd_lo_optab, vec_widen_uabd_odd_even, vec_widen_uabd_even_optab): New optabs. * tree-vect-patterns.cc (vect_recog_abd_pattern): Update to to build a VEC_WIDEN_ABD call if the input precision is smaller than the precision of the output. (vect_recog_widen_abd_pattern): Should an ABD expression be found preceeding an extension, replace the two with a VEC_WIDEN_ABD. --- gcc/internal-fn.def | 5 ++ gcc/optabs.def | 10 +++ gcc/tree-vect-patterns.cc | 174 ++++++++++++++++++++++++++++++++------ 3 files changed, 161 insertions(+), 28 deletions(-) diff --git a/gcc/internal-fn.def b/gcc/internal-fn.def index 116965f4830cec8f60642ff011a86b6562e2c509..d67274d68b49943a88c531e903fd03b42343ab97 100644 --- a/gcc/internal-fn.def +++ b/gcc/internal-fn.def @@ -352,6 +352,11 @@ DEF_INTERNAL_WIDENING_OPTAB_FN (VEC_WIDEN_MINUS, first, vec_widen_ssub, vec_widen_usub, binary) +DEF_INTERNAL_WIDENING_OPTAB_FN (VEC_WIDEN_ABD, + ECF_CONST | ECF_NOTHROW, + first, + vec_widen_sabd, vec_widen_uabd, + binary) DEF_INTERNAL_OPTAB_FN (VEC_FMADDSUB, ECF_CONST, vec_fmaddsub, ternary) DEF_INTERNAL_OPTAB_FN (VEC_FMSUBADD, ECF_CONST, vec_fmsubadd, ternary) diff --git a/gcc/optabs.def b/gcc/optabs.def index 35b835a6ac56d72417dac8ddfd77a8a7e2475e65..68dfa1550f791a2fe833012157601ecfa68f1e09 100644 --- a/gcc/optabs.def +++ b/gcc/optabs.def @@ -418,6 +418,11 @@ OPTAB_D (vec_widen_sadd_hi_optab, "vec_widen_sadd_hi_$a") OPTAB_D (vec_widen_sadd_lo_optab, "vec_widen_sadd_lo_$a") OPTAB_D (vec_widen_sadd_odd_optab, "vec_widen_sadd_odd_$a") OPTAB_D (vec_widen_sadd_even_optab, "vec_widen_sadd_even_$a") +OPTAB_D (vec_widen_sabd_optab, "vec_widen_sabd_$a") +OPTAB_D (vec_widen_sabd_hi_optab, "vec_widen_sabd_hi_$a") +OPTAB_D (vec_widen_sabd_lo_optab, "vec_widen_sabd_lo_$a") +OPTAB_D (vec_widen_sabd_odd_optab, "vec_widen_sabd_odd_$a") +OPTAB_D (vec_widen_sabd_even_optab, "vec_widen_sabd_even_$a") OPTAB_D (vec_widen_sshiftl_hi_optab, "vec_widen_sshiftl_hi_$a") OPTAB_D (vec_widen_sshiftl_lo_optab, "vec_widen_sshiftl_lo_$a") OPTAB_D (vec_widen_umult_even_optab, "vec_widen_umult_even_$a") @@ -436,6 +441,11 @@ OPTAB_D (vec_widen_uadd_hi_optab, "vec_widen_uadd_hi_$a") OPTAB_D (vec_widen_uadd_lo_optab, "vec_widen_uadd_lo_$a") OPTAB_D (vec_widen_uadd_odd_optab, "vec_widen_uadd_odd_$a") OPTAB_D (vec_widen_uadd_even_optab, "vec_widen_uadd_even_$a") +OPTAB_D (vec_widen_uabd_optab, "vec_widen_uabd_$a") +OPTAB_D (vec_widen_uabd_hi_optab, "vec_widen_uabd_hi_$a") +OPTAB_D (vec_widen_uabd_lo_optab, "vec_widen_uabd_lo_$a") +OPTAB_D (vec_widen_uabd_odd_optab, "vec_widen_uabd_odd_$a") +OPTAB_D (vec_widen_uabd_even_optab, "vec_widen_uabd_even_$a") OPTAB_D (vec_addsub_optab, "vec_addsub$a3") OPTAB_D (vec_fmaddsub_optab, "vec_fmaddsub$a4") OPTAB_D (vec_fmsubadd_optab, "vec_fmsubadd$a4") diff --git a/gcc/tree-vect-patterns.cc b/gcc/tree-vect-patterns.cc index e2392113bff4065c909aefc760b4c48978b73a5a..852c4e99edb19d215c354b666b991c87c48620b4 100644 --- a/gcc/tree-vect-patterns.cc +++ b/gcc/tree-vect-patterns.cc @@ -1404,15 +1404,28 @@ vect_recog_sad_pattern (vec_info *vinfo, gcall *abd_stmt = dyn_cast (abs_stmt_vinfo->stmt); if (!abd_stmt || !gimple_call_internal_p (abd_stmt) - || gimple_call_internal_fn (abd_stmt) != IFN_ABD) + || gimple_call_num_args (abd_stmt) != 2) return NULL; tree abd_oprnd0 = gimple_call_arg (abd_stmt, 0); tree abd_oprnd1 = gimple_call_arg (abd_stmt, 1); - if (!vect_look_through_possible_promotion (vinfo, abd_oprnd0, &unprom[0]) - || !vect_look_through_possible_promotion (vinfo, abd_oprnd1, - &unprom[1])) + if (gimple_call_internal_fn (abd_stmt) == IFN_ABD) + { + if (!vect_look_through_possible_promotion (vinfo, abd_oprnd0, + &unprom[0]) + || !vect_look_through_possible_promotion (vinfo, abd_oprnd1, + &unprom[1])) + return NULL; + } + else if (gimple_call_internal_fn (abd_stmt) == IFN_VEC_WIDEN_ABD) + { + unprom[0].op = abd_oprnd0; + unprom[0].type = TREE_TYPE (abd_oprnd0); + unprom[1].op = abd_oprnd1; + unprom[1].type = TREE_TYPE (abd_oprnd1); + } + else return NULL; half_type = unprom[0].type; @@ -1442,16 +1455,25 @@ vect_recog_sad_pattern (vec_info *vinfo, /* Function vect_recog_abd_pattern - Try to find the following ABsolute Difference (ABD) pattern: + Try to find the following ABsolute Difference (ABD) or + ABsolute Difference Long (ABDL) pattern: - VTYPE x, y, out; + VTYPE x, y; + WTYPE out; type diff; loop i in range: S1 diff = x[i] - y[i] S2 out[i] = ABS_EXPR ; - where 'type' is a integer and 'VTYPE' is a vector of integers - the same size as 'type' + where 'VTYPE' and 'WTYPE' are vectors of integers. + 'WTYPE' may be wider than 'VTYPE'. + 'type' is as wide as 'WTYPE'. + + In the case of ABD, should the precision of 'WTYPE' be wider than + 'VTYPE' or narrower, conversion operations will succeed the ABD or + ABDL expression. + In the case of ABDL, the same occurs if the precision of 'WTYPE' is + more than twice as wide or narrower. Input: @@ -1459,12 +1481,14 @@ vect_recog_sad_pattern (vec_info *vinfo, Output: - * TYPE_out: The type of the output of this pattern + * TYPE_OUT: The type of the output of this pattern * Return value: A new stmt that will be used to replace the sequence of - stmts that constitute the pattern; either SABD or UABD: + stmts that constitute the pattern; either SABD, UABD, SABDL or UABDL: SABD_EXPR UABD_EXPR + SABDL_EXPR + UABDL_EXPR */ static gimple * @@ -1479,8 +1503,9 @@ vect_recog_abd_pattern (vec_info *vinfo, out[i] = DAD In which - - X, Y, DIFF, DAD all have the same type - - x, y, out are all vectors of the same type + - X, Y have the same type + - x, y are all vectors of the same type + - DIFF, DAD, out may be wider than X, Y */ gassign *last_stmt = dyn_cast (STMT_VINFO_STMT (stmt_vinfo)); @@ -1496,37 +1521,74 @@ vect_recog_abd_pattern (vec_info *vinfo, unprom, &diff_stmt)) return NULL; - tree abd_type = out_type, vectype; - tree abd_oprnds[2]; + internal_fn ifn = IFN_ABD; + tree abd_in_type, abd_out_type; bool extend = false; + if (half_type) { - vectype = get_vectype_for_scalar_type (vinfo, half_type); - abd_type = half_type; - extend = TYPE_PRECISION (abd_type) < TYPE_PRECISION (out_type); + abd_in_type = half_type; + abd_out_type = abd_in_type; + + if (stmt_vinfo->min_output_precision == TYPE_PRECISION (abd_out_type)) + extend = TYPE_PRECISION (abd_in_type) < TYPE_PRECISION (out_type); + else + { + ifn = IFN_VEC_WIDEN_ABD; + abd_out_type + = build_nonstandard_integer_type (TYPE_PRECISION (abd_in_type) * 2, + TYPE_UNSIGNED (abd_in_type)); + extend = TYPE_PRECISION (abd_out_type) < TYPE_PRECISION (out_type); + } } else { unprom[0].op = gimple_assign_rhs1 (diff_stmt); unprom[1].op = gimple_assign_rhs2 (diff_stmt); - tree signed_out = signed_type_for (out_type); - vectype = get_vectype_for_scalar_type (vinfo, signed_out); + abd_in_type = signed_type_for (out_type); + abd_out_type = abd_in_type; } - vect_pattern_detected ("vect_recog_abd_pattern", last_stmt); + tree vectype_in = get_vectype_for_scalar_type (vinfo, abd_in_type); + tree vectype_out = get_vectype_for_scalar_type (vinfo, abd_out_type); + if (!vectype_in || !vectype_out) + return NULL; - if (!vectype - || !direct_internal_fn_supported_p (IFN_ABD, vectype, + if (ifn == IFN_VEC_WIDEN_ABD) + { + code_helper dummy_code; + int dummy_int; + auto_vec dummy_vec; + if (!supportable_widening_operation (vinfo, ifn, stmt_vinfo, + vectype_out, vectype_in, + &dummy_code, &dummy_code, + &dummy_int, &dummy_vec)) + { + /* There are architectures that have the ABD instructions + but not the ABDL instructions. If we just return NULL here + we will miss an occasion where we should have used ABD. + So we change back to ABD and try again. */ + ifn = IFN_ABD; + abd_out_type = abd_in_type; + extend = true; + } + } + + if (ifn == IFN_ABD + && !direct_internal_fn_supported_p (ifn, vectype_in, OPTIMIZE_FOR_SPEED)) return NULL; + vect_pattern_detected ("vect_recog_abd_pattern", last_stmt); + + tree abd_oprnds[2]; vect_convert_inputs (vinfo, stmt_vinfo, 2, abd_oprnds, - TREE_TYPE (vectype), unprom, vectype); + abd_in_type, unprom, vectype_in); *type_out = get_vectype_for_scalar_type (vinfo, out_type); - tree abd_result = vect_recog_temp_ssa_var (abd_type, NULL); - gcall *abd_stmt = gimple_build_call_internal (IFN_ABD, 2, + tree abd_result = vect_recog_temp_ssa_var (abd_out_type, NULL); + gcall *abd_stmt = gimple_build_call_internal (ifn, 2, abd_oprnds[0], abd_oprnds[1]); gimple_call_set_lhs (abd_stmt, abd_result); gimple_set_location (abd_stmt, gimple_location (last_stmt)); @@ -1535,15 +1597,15 @@ vect_recog_abd_pattern (vec_info *vinfo, return abd_stmt; gimple *stmt = abd_stmt; - if (!TYPE_UNSIGNED (abd_type)) + if (!TYPE_UNSIGNED (abd_out_type)) { - tree unsign = unsigned_type_for (abd_type); + tree unsign = unsigned_type_for (abd_out_type); tree unsign_vectype = get_vectype_for_scalar_type (vinfo, unsign); stmt = vect_convert_output (vinfo, stmt_vinfo, unsign, stmt, unsign_vectype); } - return vect_convert_output (vinfo, stmt_vinfo, out_type, stmt, vectype); + return vect_convert_output (vinfo, stmt_vinfo, out_type, stmt, vectype_out); } /* Recognize an operation that performs ORIG_CODE on widened inputs, @@ -1703,6 +1765,61 @@ vect_recog_widen_minus_pattern (vec_info *vinfo, stmt_vec_info last_stmt_info, &subtype); } +/* Try to detect abd on widened inputs, converting IFN_ABD + to IFN_VEC_WIDEN_ABD. */ +static gimple * +vect_recog_widen_abd_pattern (vec_info *vinfo, stmt_vec_info stmt_vinfo, + tree *type_out) +{ + gassign *last_stmt = dyn_cast (STMT_VINFO_STMT (stmt_vinfo)); + if (!last_stmt || !gimple_assign_cast_p (last_stmt)) + return NULL; + + tree last_rhs = gimple_assign_rhs1 (last_stmt); + stmt_vec_info abs_vinfo = vect_get_internal_def (vinfo, last_rhs); + if (!abs_vinfo) + return NULL; + + stmt_vec_info abd_pattern_vinfo = STMT_VINFO_RELATED_STMT (abs_vinfo); + if (!abd_pattern_vinfo) + return NULL; + + gcall *abd_stmt = dyn_cast (STMT_VINFO_STMT (abd_pattern_vinfo)); + if (!abd_stmt || gimple_call_internal_fn (abd_stmt) != IFN_ABD) + return NULL; + + tree abd_oprnd0 = gimple_call_arg (abd_stmt, 0); + tree abd_oprnd1 = gimple_call_arg (abd_stmt, 1); + + tree in_type = TREE_TYPE (abd_oprnd0); + tree out_type = TREE_TYPE (gimple_assign_lhs (last_stmt)); + if (TYPE_PRECISION (in_type) * 2 != TYPE_PRECISION (out_type)) + return NULL; + + tree vectype_in = get_vectype_for_scalar_type (vinfo, in_type); + tree vectype_out = get_vectype_for_scalar_type (vinfo, out_type); + + code_helper dummy_code; + int dummy_int; + auto_vec dummy_vec; + if (!supportable_widening_operation (vinfo, IFN_VEC_WIDEN_ABD, stmt_vinfo, + vectype_out, vectype_in, + &dummy_code, &dummy_code, + &dummy_int, &dummy_vec)) + return NULL; + + vect_pattern_detected ("vect_recog_widen_abd_pattern", last_stmt); + + *type_out = vectype_out; + + tree abdl_result = vect_recog_temp_ssa_var (out_type, NULL); + gcall *abdl_stmt = gimple_build_call_internal (IFN_VEC_WIDEN_ABD, 2, + abd_oprnd0, abd_oprnd1); + gimple_call_set_lhs (abdl_stmt, abdl_result); + gimple_set_location (abdl_stmt, gimple_location (last_stmt)); + return abdl_stmt; +} + /* Function vect_recog_ctz_ffs_pattern Try to find the following pattern: @@ -6670,6 +6787,7 @@ static vect_recog_func vect_vect_recog_func_ptrs[] = { { vect_recog_mask_conversion_pattern, "mask_conversion" }, { vect_recog_widen_plus_pattern, "widen_plus" }, { vect_recog_widen_minus_pattern, "widen_minus" }, + { vect_recog_widen_abd_pattern, "widen_abd" }, /* These must come after the double widening ones. */ }; -- 2.25.1