This patch adds the binary_rshift_narrow shape description. 2022-09-08 Christophe Lyon <christophe.l...@arm.com>
gcc/ * config/arm/arm-mve-builtins-shapes.cc (binary_rshift_narrow): New. * config/arm/arm-mve-builtins-shapes.h (binary_rshift_narrow): New. --- gcc/config/arm/arm-mve-builtins-shapes.cc | 47 +++++++++++++++++++++++ gcc/config/arm/arm-mve-builtins-shapes.h | 1 + 2 files changed, 48 insertions(+) diff --git a/gcc/config/arm/arm-mve-builtins-shapes.cc b/gcc/config/arm/arm-mve-builtins-shapes.cc index 4ecb612ece5..88934e1ca15 100644 --- a/gcc/config/arm/arm-mve-builtins-shapes.cc +++ b/gcc/config/arm/arm-mve-builtins-shapes.cc @@ -617,6 +617,53 @@ struct binary_lshift_r_def : public overloaded_base<0> }; SHAPE (binary_lshift_r) +/* <T0:half>_t vfoo[_n_t0](<T0:half>_t, <T0>_t, const int) + + Narrowing right shifts. + Check that 'imm' is in the [1..#bits/2] range. + + Example: vqrshrnbq. + int8x16_t [__arm_]vqrshrnbq[_n_s16](int8x16_t a, int16x8_t b, const int imm) + int8x16_t [__arm_]vqrshrnbq_m[_n_s16](int8x16_t a, int16x8_t b, const int imm, mve_pred16_t p) */ +struct binary_rshift_narrow_def : public overloaded_base<0> +{ + void + build (function_builder &b, const function_group_info &group, + bool preserve_user_namespace) const override + { + b.add_overloaded_functions (group, MODE_n, preserve_user_namespace); + build_all (b, "vh0,vh0,v0,ss32", group, MODE_n, preserve_user_namespace); + } + + tree + resolve (function_resolver &r) const override + { + unsigned int i, nargs; + type_suffix_index type; + if (!r.check_gp_argument (3, i, nargs) + || (type = r.infer_vector_type (1)) == NUM_TYPE_SUFFIXES + || !r.require_integer_immediate (i)) + return error_mark_node; + + type_suffix_index narrow_suffix + = find_type_suffix (type_suffixes[type].tclass, + type_suffixes[type].element_bits / 2); + + if (!r.require_matching_vector_type (0, narrow_suffix)) + return error_mark_node; + + return r.resolve_to (r.mode_suffix_id, type); + } + + bool + check (function_checker &c) const override + { + unsigned int bits = c.type_suffix (0).element_bits; + return c.require_immediate_range (2, 1, bits / 2); + } +}; +SHAPE (binary_rshift_narrow) + /* <T0>xN_t vfoo[_t0](uint64_t, uint64_t) where there are N arguments in total. diff --git a/gcc/config/arm/arm-mve-builtins-shapes.h b/gcc/config/arm/arm-mve-builtins-shapes.h index 25d9b60a670..d72686d187b 100644 --- a/gcc/config/arm/arm-mve-builtins-shapes.h +++ b/gcc/config/arm/arm-mve-builtins-shapes.h @@ -40,6 +40,7 @@ namespace arm_mve extern const function_shape *const binary_opt_n; extern const function_shape *const binary_orrq; extern const function_shape *const binary_round_lshift; + extern const function_shape *const binary_rshift_narrow; extern const function_shape *const create; extern const function_shape *const inherent; extern const function_shape *const unary_convert; -- 2.34.1