From 00e0684a78a37549eef89d3f445e2129cb90a5d9 Mon Sep 17 00:00:00 2001 From: Arthur Cohen Date: Thu, 6 Oct 2022 10:19:11 +0200 Subject: [PATCH] gccrs: builtins: Move implementation into source file gcc/rust/ChangeLog: * Make-lang.in: Add `rust-builtins.o` as target * backend/rust-builtins.h: Refactor to new file. * backend/rust-builtins.cc: New file. --- gcc/rust/Make-lang.in | 1 + gcc/rust/backend/rust-builtins.cc | 143 ++++++++++++++++++++++++++++++++++++++ gcc/rust/backend/rust-builtins.h | 120 ++++---------------------------- 3 files changed, 156 insertions(+), 108 deletions(-) create mode 100644 gcc/rust/backend/rust-builtins.cc diff --git a/gcc/rust/Make-lang.in b/gcc/rust/Make-lang.in index 7dad27a..a24025c 100644 --- a/gcc/rust/Make-lang.in +++ b/gcc/rust/Make-lang.in @@ -156,6 +156,7 @@ GRS_OBJS = \ rust/rust-imports.o \ rust/rust-import-archive.o \ rust/rust-extern-crate.o \ + rust/rust-builtins.o \ $(END) # removed object files from here diff --git a/gcc/rust/backend/rust-builtins.cc b/gcc/rust/backend/rust-builtins.cc new file mode 100644 index 0000000..14dc037 --- /dev/null +++ b/gcc/rust/backend/rust-builtins.cc @@ -0,0 +1,143 @@ +// 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 +// . + +#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 math_function_type_f32 + = build_function_type_list (float_type_node, float_type_node, NULL_TREE); + + define_builtin ("sinf32", BUILT_IN_SINF, "__builtin_sinf", "sinf", + math_function_type_f32, builtin_const); + define_builtin ("sqrtf32", BUILT_IN_SQRTF, "__builtin_sqrtf", "sqrtf", + math_function_type_f32, builtin_const); +} + +void +BuiltinsContext::setup () +{ + setup_math_fns (); + setup_overflow_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); +} + +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 diff --git a/gcc/rust/backend/rust-builtins.h b/gcc/rust/backend/rust-builtins.h index 5cd8401..e421fa4 100644 --- a/gcc/rust/backend/rust-builtins.h +++ b/gcc/rust/backend/rust-builtins.h @@ -78,88 +78,18 @@ namespace Compile { class BuiltinsContext { public: - static BuiltinsContext &get () - { - static BuiltinsContext instance; - return instance; - } + static BuiltinsContext &get (); - bool 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); - } + bool lookup_simple_builtin (const std::string &name, tree *builtin); private: - static const int builtin_const = 1 << 0; - static const int builtin_noreturn = 1 << 1; - static const int builtin_novops = 1 << 2; - - BuiltinsContext () { setup (); } - - void 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 setup_math_fns () - { - tree math_function_type_f32 - = build_function_type_list (float_type_node, float_type_node, NULL_TREE); - - define_builtin ("sinf32", BUILT_IN_SINF, "__builtin_sinf", "sinf", - math_function_type_f32, builtin_const); - define_builtin ("sqrtf32", BUILT_IN_SQRTF, "__builtin_sqrtf", "sqrtf", - math_function_type_f32, builtin_const); - } - - void setup () - { - setup_math_fns (); - setup_overflow_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); - } - - 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; - } + BuiltinsContext (); + + void setup_overflow_fns (); + + void setup_math_fns (); + + void setup (); // Define a builtin function. BCODE is the builtin function code // defined by builtins.def. NAME is the name of the builtin function. @@ -169,35 +99,9 @@ private: // NORETURN_P is true if the function has the noreturn attribute. void 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 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; - } + int flags); + + bool lookup_gcc_builtin (const std::string &name, tree *builtin); // A mapping of the GCC built-ins exposed to GCC Rust. std::map builtin_functions_; -- 2.7.4