| 1 | // |
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| 2 | // Cforall Version 1.0.0 Copyright (C) 2015 University of Waterloo |
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| 3 | // |
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| 4 | // The contents of this file are covered under the licence agreement in the |
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| 5 | // file "LICENCE" distributed with Cforall. |
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| 6 | // |
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| 7 | // LinkageSpec.h -- |
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| 8 | // |
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| 9 | // Author : Rodolfo G. Esteves |
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| 10 | // Created On : Sat May 16 13:24:28 2015 |
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| 11 | // Last Modified By : Peter A. Buhr |
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| 12 | // Last Modified On : Mon Dec 16 15:03:43 2019 |
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| 13 | // Update Count : 20 |
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| 14 | // |
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| 15 | |
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| 16 | #pragma once |
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| 17 | |
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| 18 | #include <string> |
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| 19 | |
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| 20 | #include "Common/CodeLocation.h" |
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| 21 | |
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| 22 | namespace LinkageSpec { |
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| 23 | // Bitflags for linkage specifiers |
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| 24 | enum { |
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| 25 | Mangle = 1 << 0, |
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| 26 | Generate = 1 << 1, |
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| 27 | Overrideable = 1 << 2, |
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| 28 | Builtin = 1 << 3, |
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| 29 | GccBuiltin = 1 << 4, |
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| 30 | }; |
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| 31 | |
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| 32 | // Bitflag type for storage classes |
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| 33 | union Spec { |
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| 34 | unsigned int val; |
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| 35 | struct { |
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| 36 | bool is_mangled : 1; |
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| 37 | bool is_generatable : 1; |
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| 38 | bool is_overridable : 1; |
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| 39 | bool is_builtin : 1; |
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| 40 | bool is_gcc_builtin : 1; |
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| 41 | }; |
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| 42 | constexpr Spec( unsigned int val ) : val( val ) {} |
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| 43 | constexpr Spec( Spec const & other ) : val( other.val ) {} |
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| 44 | constexpr Spec & operator=( const Spec & ) = default; |
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| 45 | // Operators may go here. |
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| 46 | // Supports == and != |
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| 47 | constexpr operator unsigned int() const { return val; } |
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| 48 | }; |
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| 49 | |
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| 50 | |
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| 51 | Spec update( CodeLocation location, Spec spec, const std::string * cmd ); |
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| 52 | // If cmd = "C" returns a Spec that is old_spec with is_mangled = false |
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| 53 | // If cmd = "Cforall" returns old_spec Spec with is_mangled = true |
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| 54 | |
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| 55 | std::string name( Spec ); |
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| 56 | |
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| 57 | // To Update: LinkageSpec::isXyz( cur_spec ) -> cur_spec.is_xyz |
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| 58 | inline bool isMangled( Spec spec ) { return spec.is_mangled; } |
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| 59 | inline bool isGeneratable( Spec spec ) { return spec.is_generatable; } |
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| 60 | inline bool isOverridable( Spec spec ) { return spec.is_overridable; } |
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| 61 | inline bool isBuiltin( Spec spec ) { return spec.is_builtin; } |
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| 62 | inline bool isGccBuiltin( Spec spec ) { return spec.is_gcc_builtin; } |
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| 63 | |
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| 64 | // Pre-defined flag combinations: |
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| 65 | // C built-in defined in prelude |
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| 66 | constexpr Spec const Intrinsic = { Mangle | Generate | Overrideable | Builtin }; |
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| 67 | // ordinary |
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| 68 | constexpr Spec const Cforall = { Mangle | Generate }; |
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| 69 | // not overloadable, not mangled |
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| 70 | constexpr Spec const C = { Generate }; |
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| 71 | // built by translator (struct assignment) |
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| 72 | constexpr Spec const AutoGen = { Mangle | Generate | Overrideable }; |
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| 73 | // gcc internal |
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| 74 | constexpr Spec const Compiler = { Mangle | Builtin | GccBuiltin }; |
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| 75 | // mangled builtins |
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| 76 | constexpr Spec const BuiltinCFA = { Mangle | Generate | Builtin }; |
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| 77 | // non-mangled builtins |
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| 78 | constexpr Spec const BuiltinC = { Generate | Builtin }; |
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| 79 | }; |
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| 80 | |
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| 81 | // Local Variables: // |
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| 82 | // tab-width: 4 // |
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| 83 | // mode: c++ // |
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| 84 | // compile-command: "make install" // |
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| 85 | // End: // |
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