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// Copyright (C) 2020-2025 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/>.
#ifndef RUST_BUILTINS_H
#define RUST_BUILTINS_H
#include "rust-system.h"
#include "rust-tree.h"
#include "langhooks.h"
#include "tree.h"
#include "selftest.h"
namespace Rust {
namespace Compile {
// https://github.com/rust-lang/rust/blob/master/library/core/src/intrinsics.rs
// https://github.com/rust-lang/rust/blob/master/compiler/rustc_codegen_llvm/src/intrinsic.rs
// https://github.com/Rust-GCC/gccrs/issues/658
//
// let llvm_name = match name {
// sym::sqrtf32 => "llvm.sqrt.f32",
// sym::sqrtf64 => "llvm.sqrt.f64",
// sym::powif32 => "llvm.powi.f32",
// sym::powif64 => "llvm.powi.f64",
// sym::sinf32 => "llvm.sin.f32",
// sym::sinf64 => "llvm.sin.f64",
// sym::cosf32 => "llvm.cos.f32",
// sym::cosf64 => "llvm.cos.f64",
// sym::powf32 => "llvm.pow.f32",
// sym::powf64 => "llvm.pow.f64",
// sym::expf32 => "llvm.exp.f32",
// sym::expf64 => "llvm.exp.f64",
// sym::exp2f32 => "llvm.exp2.f32",
// sym::exp2f64 => "llvm.exp2.f64",
// sym::logf32 => "llvm.log.f32",
// sym::logf64 => "llvm.log.f64",
// sym::log10f32 => "llvm.log10.f32",
// sym::log10f64 => "llvm.log10.f64",
// sym::log2f32 => "llvm.log2.f32",
// sym::log2f64 => "llvm.log2.f64",
// sym::fmaf32 => "llvm.fma.f32",
// sym::fmaf64 => "llvm.fma.f64",
// sym::fabsf32 => "llvm.fabs.f32",
// sym::fabsf64 => "llvm.fabs.f64",
// sym::minnumf32 => "llvm.minnum.f32",
// sym::minnumf64 => "llvm.minnum.f64",
// sym::maxnumf32 => "llvm.maxnum.f32",
// sym::maxnumf64 => "llvm.maxnum.f64",
// sym::copysignf32 => "llvm.copysign.f32",
// sym::copysignf64 => "llvm.copysign.f64",
// sym::floorf32 => "llvm.floor.f32",
// sym::floorf64 => "llvm.floor.f64",
// sym::ceilf32 => "llvm.ceil.f32",
// sym::ceilf64 => "llvm.ceil.f64",
// sym::truncf32 => "llvm.trunc.f32",
// sym::truncf64 => "llvm.trunc.f64",
// sym::rintf32 => "llvm.rint.f32",
// sym::rintf64 => "llvm.rint.f64",
// sym::nearbyintf32 => "llvm.nearbyint.f32",
// sym::nearbyintf64 => "llvm.nearbyint.f64",
// sym::roundf32 => "llvm.round.f32",
// sym::roundf64 => "llvm.round.f64",
// _ => return None,
// };
// Some(cx.get_intrinsic(&llvm_name))
class BuiltinsContext
{
public:
static BuiltinsContext &get ();
bool lookup_simple_builtin (const std::string &name, tree *builtin);
private:
enum Type
{
#define DEF_PRIMITIVE_TYPE(NAME, V) NAME,
#define DEF_FUNCTION_TYPE_0(NAME, R) NAME,
#define DEF_FUNCTION_TYPE_1(NAME, R, A1) NAME,
#define DEF_FUNCTION_TYPE_2(NAME, R, A1, A2) NAME,
#define DEF_FUNCTION_TYPE_3(NAME, R, A1, A2, A3) NAME,
#define DEF_FUNCTION_TYPE_4(NAME, R, A1, A2, A3, A4) NAME,
#define DEF_FUNCTION_TYPE_5(NAME, R, A1, A2, A3, A4, A5) NAME,
#define DEF_FUNCTION_TYPE_6(NAME, R, A1, A2, A3, A4, A5, A6) NAME,
#define DEF_FUNCTION_TYPE_7(NAME, R, A1, A2, A3, A4, A5, A6, A7) NAME,
#define DEF_FUNCTION_TYPE_8(NAME, R, A1, A2, A3, A4, A5, A6, A7, A8) NAME,
#define DEF_FUNCTION_TYPE_9(NAME, R, A1, A2, A3, A4, A5, A6, A7, A8, A9) NAME,
#define DEF_FUNCTION_TYPE_10(NAME, R, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10) \
NAME,
#define DEF_FUNCTION_TYPE_11(NAME, R, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, \
A11) \
NAME,
#define DEF_FUNCTION_TYPE_VAR_0(NAME, R) NAME,
#define DEF_FUNCTION_TYPE_VAR_1(NAME, R, A1) NAME,
#define DEF_FUNCTION_TYPE_VAR_2(NAME, R, A1, A2) NAME,
#define DEF_FUNCTION_TYPE_VAR_3(NAME, R, A1, A2, A3) NAME,
#define DEF_FUNCTION_TYPE_VAR_4(NAME, R, A1, A2, A3, A4) NAME,
#define DEF_FUNCTION_TYPE_VAR_5(NAME, R, A1, A2, A3, A4, A5) NAME,
#define DEF_FUNCTION_TYPE_VAR_6(NAME, R, A1, A2, A3, A4, A5, A6) NAME,
#define DEF_FUNCTION_TYPE_VAR_7(NAME, R, A1, A2, A3, A4, A5, A6, A7) NAME,
#define DEF_FUNCTION_TYPE_VAR_11(NAME, R, A1, A2, A3, A4, A5, A6, A7, A8, A9, \
A10, A11) \
NAME,
#define DEF_POINTER_TYPE(NAME, TYPE) NAME,
#include "builtin-types.def"
#undef DEF_PRIMITIVE_TYPE
#undef DEF_FUNCTION_TYPE_0
#undef DEF_FUNCTION_TYPE_1
#undef DEF_FUNCTION_TYPE_2
#undef DEF_FUNCTION_TYPE_3
#undef DEF_FUNCTION_TYPE_4
#undef DEF_FUNCTION_TYPE_5
#undef DEF_FUNCTION_TYPE_6
#undef DEF_FUNCTION_TYPE_7
#undef DEF_FUNCTION_TYPE_8
#undef DEF_FUNCTION_TYPE_9
#undef DEF_FUNCTION_TYPE_10
#undef DEF_FUNCTION_TYPE_11
#undef DEF_FUNCTION_TYPE_VAR_0
#undef DEF_FUNCTION_TYPE_VAR_1
#undef DEF_FUNCTION_TYPE_VAR_2
#undef DEF_FUNCTION_TYPE_VAR_3
#undef DEF_FUNCTION_TYPE_VAR_4
#undef DEF_FUNCTION_TYPE_VAR_5
#undef DEF_FUNCTION_TYPE_VAR_6
#undef DEF_FUNCTION_TYPE_VAR_7
#undef DEF_FUNCTION_TYPE_VAR_11
#undef DEF_POINTER_TYPE
BT_LAST,
};
enum Attr
{
#define DEF_ATTR_NULL_TREE(ENUM) ENUM,
#define DEF_ATTR_INT(ENUM, VALUE) ENUM,
#define DEF_ATTR_STRING(ENUM, VALUE) ENUM,
#define DEF_ATTR_IDENT(ENUM, STRING) ENUM,
#define DEF_ATTR_TREE_LIST(ENUM, PURPOSE, VALUE, CHAIN) ENUM,
#include "builtin-attrs.def"
#undef DEF_ATTR_NULL_TREE
#undef DEF_ATTR_INT
#undef DEF_ATTR_STRING
#undef DEF_ATTR_IDENT
#undef DEF_ATTR_TREE_LIST
ATTR_LAST,
};
/**
* All builtin types, as defined in `builtin-types.def`
*
* This array is filled by the `define_builtin_types` method, during the first
* initialization of the `BuiltinsContext`
*/
tree builtin_types[Type::BT_LAST + 1];
/**
* Similarly, this array contains all builtin attributes, as defined in
* `builtin-attr.def`
*
* This array is filled by the `define_builtin_attributes` method, during the
* first initialization of the `BuiltinsContext`
*/
tree builtin_attributes[Attr::ATTR_LAST + 1];
void define_function_type (Type def, Type ret, bool is_variadic, size_t n,
...);
void define_builtin_types ();
void define_builtin_attributes ();
void define_builtins ();
void register_rust_mappings ();
BuiltinsContext ();
void setup_overflow_fns ();
void setup_math_fns ();
void setup_atomic_fns ();
void setup ();
bool lookup_gcc_builtin (const std::string &name, tree *builtin);
// A mapping of the GCC built-ins exposed to GCC Rust.
std::map<std::string, tree> builtin_functions;
std::map<std::string, std::string> rust_intrinsic_to_gcc_builtin;
};
} // namespace Compile
} // namespace Rust
#endif // RUST_BUILTINS_H
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