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// 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/>.
#include "rust-builtins.h"
namespace Rust {
namespace Compile {
static const int builtin_const = 1 << 0;
static const int builtin_noreturn = 1 << 1;
static const int builtin_novops = 1 << 2;
BuiltinsContext &
BuiltinsContext::get ()
{
static BuiltinsContext instance;
return instance;
}
bool
BuiltinsContext::lookup_simple_builtin (const std::string &name, tree *builtin)
{
auto it = rust_intrinsic_to_gcc_builtin.find (name);
if (it == rust_intrinsic_to_gcc_builtin.end ())
return false;
return lookup_gcc_builtin (it->second, builtin);
}
BuiltinsContext::BuiltinsContext () { setup (); }
void
BuiltinsContext::setup_overflow_fns ()
{
tree overflow_type
= build_varargs_function_type_list (boolean_type_node, NULL_TREE);
define_builtin ("add_overflow", BUILT_IN_ADD_OVERFLOW,
"__builtin_add_overflow", "add_overflow", overflow_type, 0);
define_builtin ("sub_overflow", BUILT_IN_SUB_OVERFLOW,
"__builtin_sub_overflow", "sub_overflow", overflow_type, 0);
define_builtin ("mul_overflow", BUILT_IN_MUL_OVERFLOW,
"__builtin_mul_overflow", "mul_overflow", overflow_type, 0);
}
void
BuiltinsContext::setup_math_fns ()
{
tree fn_type_f32_to_f32
= build_function_type_list (float_type_node, float_type_node, NULL_TREE);
tree fn_type_f64_to_f64
= build_function_type_list (double_type_node, double_type_node, NULL_TREE);
tree fn_type_f32_f32_to_f32
= build_function_type_list (float_type_node, float_type_node,
float_type_node, NULL_TREE);
tree fn_type_f64_f64_to_f64
= build_function_type_list (double_type_node, double_type_node,
double_type_node, NULL_TREE);
tree fn_type_f32_i32_to_f32
= build_function_type_list (float_type_node, float_type_node,
integer_type_node, NULL_TREE);
tree fn_type_f64_i32_to_f64
= build_function_type_list (double_type_node, double_type_node,
integer_type_node, NULL_TREE);
define_builtin ("sqrtf32", BUILT_IN_SQRTF, "__builtin_sqrtf", "sqrtf",
fn_type_f32_to_f32, builtin_const);
define_builtin ("sqrtf64", BUILT_IN_SQRT, "__builtin_sqrt", "sqrt",
fn_type_f64_to_f64, builtin_const);
define_builtin ("powif32", BUILT_IN_POWIF, "__builtin_powif", "powif",
fn_type_f32_i32_to_f32, builtin_const);
define_builtin ("powif64", BUILT_IN_POWI, "__builtin_powi", "powi",
fn_type_f64_i32_to_f64, builtin_const);
define_builtin ("sinf32", BUILT_IN_SINF, "__builtin_sinf", "sinf",
fn_type_f32_to_f32, builtin_const);
define_builtin ("sinf64", BUILT_IN_SIN, "__builtin_sin", "sin",
fn_type_f64_to_f64, builtin_const);
define_builtin ("cosf32", BUILT_IN_COSF, "__builtin_cosf", "cosf",
fn_type_f32_to_f32, builtin_const);
define_builtin ("cosf64", BUILT_IN_COS, "__builtin_cos", "cos",
fn_type_f64_to_f64, builtin_const);
define_builtin ("powf32", BUILT_IN_POWF, "__builtin_powf", "powf",
fn_type_f32_f32_to_f32, builtin_const);
define_builtin ("powf64", BUILT_IN_POW, "__builtin_pow", "pow",
fn_type_f64_f64_to_f64, builtin_const);
define_builtin ("expf32", BUILT_IN_EXPF, "__builtin_expf", "expf",
fn_type_f32_to_f32, builtin_const);
define_builtin ("expf64", BUILT_IN_EXP, "__builtin_exp", "exp",
fn_type_f64_to_f64, builtin_const);
define_builtin ("exp2f32", BUILT_IN_EXP2F, "__builtin_exp2f", "exp2f",
fn_type_f32_to_f32, builtin_const);
define_builtin ("exp2f64", BUILT_IN_EXP2, "__builtin_exp2", "exp2",
fn_type_f64_to_f64, builtin_const);
define_builtin ("logf32", BUILT_IN_LOGF, "__builtin_logf", "logf",
fn_type_f32_to_f32, builtin_const);
define_builtin ("logf64", BUILT_IN_LOG, "__builtin_log", "log",
fn_type_f64_to_f64, builtin_const);
define_builtin ("log10f32", BUILT_IN_LOG10F, "__builtin_log10f", "log10f",
fn_type_f32_to_f32, builtin_const);
define_builtin ("log10f64", BUILT_IN_LOG10, "__builtin_log10", "log10",
fn_type_f64_to_f64, builtin_const);
define_builtin ("log2f32", BUILT_IN_LOG2F, "__builtin_log2f", "log2f",
fn_type_f32_to_f32, builtin_const);
define_builtin ("log2f64", BUILT_IN_LOG2, "__builtin_log2", "log2",
fn_type_f64_to_f64, builtin_const);
define_builtin ("fmaf32", BUILT_IN_FMAF, "__builtin_fmaf", "fmaf",
fn_type_f32_f32_to_f32, builtin_const);
define_builtin ("fmaf64", BUILT_IN_FMA, "__builtin_fma", "fma",
fn_type_f64_f64_to_f64, builtin_const);
define_builtin ("fabsf32", BUILT_IN_FABSF, "__builtin_fabsf", "fabsf",
fn_type_f32_to_f32, builtin_const);
define_builtin ("fabsf64", BUILT_IN_FABS, "__builtin_fabs", "fabs",
fn_type_f64_to_f64, builtin_const);
define_builtin ("minnumf32", BUILT_IN_FMINF, "__builtin_fminf", "fminf",
fn_type_f32_f32_to_f32, builtin_const);
define_builtin ("minnumf64", BUILT_IN_FMIN, "__builtin_fmin", "fmin",
fn_type_f64_f64_to_f64, builtin_const);
define_builtin ("maxnumf32", BUILT_IN_FMAXF, "__builtin_fmaxf", "fmaxf",
fn_type_f32_f32_to_f32, builtin_const);
define_builtin ("maxnumf64", BUILT_IN_FMAX, "__builtin_fmax", "fmax",
fn_type_f64_f64_to_f64, builtin_const);
define_builtin ("copysignf32", BUILT_IN_COPYSIGNF, "__builtin_copysignf",
"copysignf", fn_type_f32_f32_to_f32, builtin_const);
define_builtin ("copysignf64", BUILT_IN_COPYSIGN, "__builtin_copysign",
"copysign", fn_type_f64_f64_to_f64, builtin_const);
define_builtin ("floorf32", BUILT_IN_FLOORF, "__builtin_floorf", "floorf",
fn_type_f32_to_f32, builtin_const);
define_builtin ("floorf64", BUILT_IN_FLOOR, "__builtin_floor", "floor",
fn_type_f64_to_f64, builtin_const);
define_builtin ("ceilf32", BUILT_IN_CEILF, "__builtin_ceilf", "ceilf",
fn_type_f32_to_f32, builtin_const);
define_builtin ("ceilf64", BUILT_IN_CEIL, "__builtin_ceil", "ceil",
fn_type_f64_to_f64, builtin_const);
define_builtin ("truncf32", BUILT_IN_TRUNCF, "__builtin_truncf", "truncf",
fn_type_f32_to_f32, builtin_const);
define_builtin ("truncf64", BUILT_IN_TRUNC, "__builtin_trunc", "trunc",
fn_type_f64_to_f64, builtin_const);
define_builtin ("rintf32", BUILT_IN_RINTF, "__builtin_rintf", "rintf",
fn_type_f32_to_f32, builtin_const);
define_builtin ("rintf64", BUILT_IN_RINT, "__builtin_rint", "rint",
fn_type_f64_to_f64, builtin_const);
define_builtin ("nearbyintf32", BUILT_IN_NEARBYINTF, "__builtin_nearbyintf",
"nearbyintf", fn_type_f32_to_f32, builtin_const);
define_builtin ("nearbyintf64", BUILT_IN_NEARBYINT, "__builtin_nearbyint",
"nearbyint", fn_type_f64_to_f64, builtin_const);
define_builtin ("roundf32", BUILT_IN_ROUNDF, "__builtin_roundf", "roundf",
fn_type_f32_to_f32, builtin_const);
define_builtin ("roundf64", BUILT_IN_ROUND, "__builtin_round", "round",
fn_type_f64_to_f64, builtin_const);
}
void
BuiltinsContext::setup_atomic_fns ()
{
auto atomic_store_type
= build_varargs_function_type_list (void_type_node, NULL_TREE);
auto atomic_load_type = [] (tree ret_type_node) {
return build_function_type_list (ret_type_node,
ptr_type_node, // const_ptr_type_node?
integer_type_node, NULL_TREE);
};
// FIXME: These should be the definition for the generic version of the
// atomic_store builtins, but I cannot get them to work properly. Revisit
// later. define_builtin ("atomic_store", BUILT_IN_ATOMIC_STORE,
// "__atomic_store", NULL,
// atomic_store_type, 0);
// define_builtin ("atomic_store_n", BUILT_IN_ATOMIC_STORE_N,
// "__atomic_store_n",
// NULL, atomic_store_type, 0);
define_builtin ("atomic_store_1", BUILT_IN_ATOMIC_STORE_1, "__atomic_store_1",
NULL, atomic_store_type, 0);
define_builtin ("atomic_store_2", BUILT_IN_ATOMIC_STORE_2, "__atomic_store_2",
NULL, atomic_store_type, 0);
define_builtin ("atomic_store_4", BUILT_IN_ATOMIC_STORE_4, "__atomic_store_4",
NULL, atomic_store_type, 0);
define_builtin ("atomic_store_8", BUILT_IN_ATOMIC_STORE_8, "__atomic_store_8",
NULL, atomic_store_type, 0);
define_builtin ("atomic_store_16", BUILT_IN_ATOMIC_STORE_16,
"__atomic_store_16", NULL, atomic_store_type, 0);
define_builtin ("atomic_load_1", BUILT_IN_ATOMIC_LOAD_1, "__atomic_load_1",
NULL, atomic_load_type (integer_type_node), 0);
define_builtin ("atomic_load_2", BUILT_IN_ATOMIC_LOAD_2, "__atomic_load_2",
NULL, atomic_load_type (integer_type_node), 0);
define_builtin ("atomic_load_4", BUILT_IN_ATOMIC_LOAD_4, "__atomic_load_4",
NULL, atomic_load_type (integer_type_node), 0);
define_builtin ("atomic_load_8", BUILT_IN_ATOMIC_LOAD_8, "__atomic_load_8",
NULL, atomic_load_type (integer_type_node), 0);
}
void
BuiltinsContext::setup ()
{
setup_math_fns ();
setup_overflow_fns ();
setup_atomic_fns ();
define_builtin ("unreachable", BUILT_IN_UNREACHABLE, "__builtin_unreachable",
NULL, build_function_type (void_type_node, void_list_node),
builtin_const | builtin_noreturn);
define_builtin ("abort", BUILT_IN_ABORT, "__builtin_abort", "abort",
build_function_type (void_type_node, void_list_node),
builtin_const | builtin_noreturn);
define_builtin ("breakpoint", BUILT_IN_TRAP, "__builtin_trap", "breakpoint",
build_function_type (void_type_node, void_list_node),
builtin_const | builtin_noreturn);
define_builtin ("memcpy", BUILT_IN_MEMCPY, "__builtin_memcpy", "memcpy",
build_function_type_list (build_pointer_type (void_type_node),
build_pointer_type (void_type_node),
build_pointer_type (void_type_node),
size_type_node, NULL_TREE),
0);
define_builtin ("prefetch", BUILT_IN_PREFETCH, "__builtin_prefetch",
"prefetch",
build_varargs_function_type_list (
build_pointer_type (const_ptr_type_node), NULL_TREE),
builtin_const);
}
static void
handle_flags (tree decl, int flags)
{
if (flags & builtin_const)
TREE_READONLY (decl) = 1;
if (flags & builtin_noreturn)
TREE_READONLY (decl) = 1;
if (flags & builtin_novops)
DECL_IS_NOVOPS (decl) = 1;
}
void
BuiltinsContext::define_builtin (const std::string rust_name,
built_in_function bcode, const char *name,
const char *libname, tree fntype, int flags)
{
tree decl = add_builtin_function (name, fntype, bcode, BUILT_IN_NORMAL,
libname, NULL_TREE);
handle_flags (decl, flags);
set_builtin_decl (bcode, decl, true);
this->builtin_functions_[name] = decl;
if (libname != NULL)
{
decl = add_builtin_function (libname, fntype, bcode, BUILT_IN_NORMAL,
NULL, NULL_TREE);
handle_flags (decl, flags);
this->builtin_functions_[libname] = decl;
}
rust_intrinsic_to_gcc_builtin[rust_name] = name;
}
bool
BuiltinsContext::lookup_gcc_builtin (const std::string &name, tree *builtin)
{
auto it = builtin_functions_.find (name);
if (it == builtin_functions_.end ())
return false;
*builtin = it->second;
return true;
}
} // namespace Compile
} // namespace Rust
|
