#include "optabs-query.h"
Go to the source code of this file.
Enumerations | |
| enum | optab_subtype { optab_default , optab_scalar , optab_vector , optab_vector_mixed_sign } |
Functions | |
| optab | optab_for_tree_code (enum tree_code, const_tree, enum optab_subtype) |
| bool | supportable_half_widening_operation (enum tree_code, tree, tree, enum tree_code *) |
| bool | supportable_convert_operation (enum tree_code, tree, tree, enum tree_code *) |
| bool | expand_vec_cmp_expr_p (tree, tree, enum tree_code) |
| bool | expand_vec_cond_expr_p (tree, tree, enum tree_code) |
| void | init_tree_optimization_optabs (tree) |
| bool | target_supports_op_p (tree, enum tree_code, enum optab_subtype=optab_default) |
| bool | can_vec_mask_load_store_p (machine_mode, machine_mode, bool, internal_fn *=nullptr) |
| opt_machine_mode | get_len_load_store_mode (machine_mode, bool, internal_fn *=nullptr) |
Enumeration Type Documentation
◆ optab_subtype
Tree-based target query functions relating to optabs Copyright (C) 2001-2024 Free Software Foundation, Inc. This file is part of GCC. GCC is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3, or (at your option) any later version. GCC is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with GCC; see the file COPYING3. If not see <http://www.gnu.org/licenses/>.
An extra flag to control optab_for_tree_code's behavior. This is needed to distinguish between machines with a vector shift that takes a scalar for the shift amount vs. machines that take a vector for the shift amount.
| Enumerator | |
|---|---|
| optab_default | |
| optab_scalar | |
| optab_vector | |
| optab_vector_mixed_sign | |
Function Documentation
◆ can_vec_mask_load_store_p()
| bool can_vec_mask_load_store_p | ( | machine_mode | mode, |
| machine_mode | mask_mode, | ||
| bool | is_load, | ||
| internal_fn * | ifn ) |
Return true if target supports vector masked load/store for mode.
An additional output in the last argument which is the IFN pointer.
We set IFN as MASK_{LOAD,STORE} or MASK_LEN_{LOAD,STORE} according
which optab is supported in the target.
References opt_mode< T >::exists(), ggc_alloc(), related_vector_mode(), target_supports_mask_load_store_p(), targetm, and VECTOR_MODE_P.
Referenced by check_load_store_for_partial_vectors(), ifcvt_can_use_mask_load_store(), vectorizable_load(), and vectorizable_store().
◆ expand_vec_cmp_expr_p()
Return TRUE if appropriate vector insn is available for vector comparison expr with vector type VALUE_TYPE and resulting mask with MASK_TYPE.
References ggc_alloc(), vec_cmp_eq_icode_p(), and vec_cmp_icode_p().
Referenced by check_bool_pattern(), do_store_flag(), expand_vector_comparison(), expand_vector_condition(), gimple_expand_vec_cond_expr(), vect_determine_mask_precision(), vect_verify_full_masking_avx512(), vectorizable_comparison_1(), and vectorizable_condition().
◆ expand_vec_cond_expr_p()
Return TRUE iff, appropriate vector insns are available for vector cond expr with vector type VALUE_TYPE and a comparison with operand vector types in CMP_OP_TYPE.
References GET_MODE_NUNITS(), get_vcond_mask_icode(), ggc_alloc(), tcc_comparison, TREE_CODE_CLASS, TYPE_MODE, vcond_eq_icode_p(), vcond_icode_p(), and VECTOR_BOOLEAN_TYPE_P.
Referenced by check_bool_pattern(), expand_vector_condition(), expand_vector_divmod(), scan_store_can_perm_p(), vect_recog_mask_conversion_pattern(), vect_recog_mixed_size_cond_pattern(), vectorizable_condition(), vectorizable_reduction(), and vectorizable_simd_clone_call().
◆ get_len_load_store_mode()
| opt_machine_mode get_len_load_store_mode | ( | machine_mode | mode, |
| bool | is_load, | ||
| internal_fn * | ifn ) |
If target supports vector load/store with length for vector mode MODE,
return the corresponding vector mode, otherwise return opt_machine_mode ().
There are two flavors for vector load/store with length, one is to measure
length with bytes, the other is to measure length with lanes.
As len_{load,store} optabs point out, for the flavor with bytes, we use
VnQI to wrap the other supportable same size vector modes.
An additional output in the last argument which is the IFN pointer.
We set IFN as LEN_{LOAD,STORE} or MASK_LEN_{LOAD,STORE} according
which optab is supported in the target.
References gcc_assert, GET_MODE_SIZE(), ggc_alloc(), related_vector_mode(), target_supports_len_load_store_p(), and VECTOR_MODE_P.
Referenced by check_load_store_for_partial_vectors(), vect_verify_loop_lens(), vectorizable_load(), and vectorizable_store().
◆ init_tree_optimization_optabs()
Use the current target and options to initialize TREE_OPTIMIZATION_OPTABS (OPTNODE).
References ggc_alloc(), ggc_free(), NULL, TREE_OPTIMIZATION_BASE_OPTABS, and TREE_OPTIMIZATION_OPTABS.
Referenced by invoke_set_current_function_hook().
◆ optab_for_tree_code()
| optab optab_for_tree_code | ( | enum tree_code | code, |
| const_tree | type, | ||
| enum optab_subtype | subtype ) |
Return the optab used for computing the given operation on the type given by the second argument. The third argument distinguishes between the types of vector shifts and rotates.
Tree-based target query functions relating to optabs Copyright (C) 1987-2024 Free Software Foundation, Inc. This file is part of GCC. GCC is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3, or (at your option) any later version. GCC is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with GCC; see the file COPYING3. If not see <http://www.gnu.org/licenses/>.
Return the optab used for computing the operation given by the tree code, CODE and the tree EXP. This function is not always usable (for example, it cannot give complete results for multiplication or division) but probably ought to be relied on more widely throughout the expander.
References gcc_assert, ggc_alloc(), INTEGRAL_TYPE_P, optab_scalar, optab_vector, optab_vector_mixed_sign, TYPE_OVERFLOW_TRAPS, TYPE_SATURATING, TYPE_UNSIGNED, unknown_optab, and VECTOR_TYPE_P.
Referenced by add_rshift(), check_scan_store(), convert_plusminus_to_widen(), directly_supported_p(), expand_expr_real_2(), expand_vector_conversion(), expand_vector_divmod(), expand_vector_operations_1(), expand_vector_ubsan_overflow(), expand_widen_pattern_expr(), optimize_vector_constructor(), simplify_vector_constructor(), supportable_half_widening_operation(), supportable_narrowing_operation(), supportable_widening_operation(), target_has_vecop_for_code(), target_supports_op_p(), undistribute_bitref_for_vector(), vect_recog_average_pattern(), vect_recog_divmod_pattern(), vect_recog_mult_pattern(), vect_recog_rotate_pattern(), vect_supportable_direct_optab_p(), vect_supportable_shift(), vectorizable_comparison_1(), vectorizable_condition(), vectorizable_operation(), and vectorizable_shift().
◆ supportable_convert_operation()
| bool supportable_convert_operation | ( | enum tree_code | code, |
| tree | vectype_out, | ||
| tree | vectype_in, | ||
| enum tree_code * | code1 ) |
Function supportable_convert_operation Check whether an operation represented by the code CODE is a convert operation that is supported by the target platform in vector form (i.e., when operating on arguments of type VECTYPE_IN producing a result of type VECTYPE_OUT). Convert operations we currently support directly are FIX_TRUNC and FLOAT. This function checks if these operations are supported by the target platform directly (via vector tree-codes). Output: - CODE1 is code of vector operation to be used when vectorizing the operation, if available.
References can_extend_p(), can_fix_p(), can_float_p(), convert_optab_handler(), gcc_assert, GET_MODE_UNIT_PRECISION, ggc_alloc(), TYPE_MODE, TYPE_UNSIGNED, VECTOR_MODE_P, and VECTOR_TYPE_P.
Referenced by expand_vector_conversion(), simplify_vector_constructor(), supportable_half_widening_operation(), and vectorizable_conversion().
◆ supportable_half_widening_operation()
| bool supportable_half_widening_operation | ( | enum tree_code | code, |
| tree | vectype_out, | ||
| tree | vectype_in, | ||
| enum tree_code * | code1 ) |
Check whether an operation represented by CODE is a 'half' widening operation in which the input vector type has half the number of bits of the output vector type e.g. V8QI->V8HI. This is handled by widening the inputs using NOP_EXPRs then using a non-widening stmt e.g. MINUS_EXPR. RTL fusing converts these to the widening hardware instructions if supported. The more typical case (handled in supportable_widening_operation) is where the input vector type has the same number of bits as the output vector type. In this case half the elements of the input vectors must be processed at a time into respective vector outputs with elements twice as wide i.e. a 'hi'/'lo' pair using codes such as VEC_WIDEN_MINUS_HI/LO. Supported widening operations: WIDEN_MULT_EXPR WIDEN_LSHIFT_EXPR Output: - CODE1 - The non-widened code, which will be used after the inputs are converted to the wide type.
References gcc_assert, ggc_alloc(), optab_for_tree_code(), optab_handler(), optab_vector, supportable_convert_operation(), TYPE_MODE, TYPE_VECTOR_SUBPARTS(), VECTOR_MODE_P, and VECTOR_TYPE_P.
Referenced by vectorizable_conversion().
◆ target_supports_op_p()
Return TRUE if the target has support for vector right shift of an operand of type TYPE. If OT_TYPE is OPTAB_DEFAULT, check for existence of a shift by either a scalar or a vector. Otherwise, check only for a shift that matches OT_TYPE.
References ggc_alloc(), optab_for_tree_code(), optab_handler(), TYPE_MODE, and unknown_optab.
Referenced by determine_max_movement().
