[a32b204] | 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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[c92bdcc] | 7 | // ConversionCost.cpp -- |
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[a32b204] | 8 | // |
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| 9 | // Author : Richard C. Bilson |
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| 10 | // Created On : Sun May 17 07:06:19 2015 |
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[fb2bde4] | 11 | // Last Modified By : Andrew Beach |
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[1d17939] | 12 | // Last Modified On : Wed Jul 29 16:11:00 2020 |
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[cf32116] | 13 | // Update Count : 28 |
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[a32b204] | 14 | // |
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[51b7345] | 15 | |
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[c92bdcc] | 16 | #include "ConversionCost.hpp" |
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[ea6332d] | 17 | |
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| 18 | #include <cassert> // for assert |
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| 19 | #include <list> // for list, list<>::const_iterator |
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| 20 | #include <string> // for operator==, string |
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| 21 | |
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[c92bdcc] | 22 | #include "ResolvExpr/Cost.hpp" // for Cost |
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| 23 | #include "ResolvExpr/Unify.hpp" // for typesCompatibleIgnoreQualifiers |
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[5bf3976] | 24 | #include "ResolvExpr/PtrsAssignable.hpp" // for ptrsAssignable |
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[ef1da0e2] | 25 | |
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[51b7345] | 26 | namespace ResolvExpr { |
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[b46e3bd] | 27 | |
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[5ccb10d] | 28 | #if 0 |
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| 29 | #define PRINT(x) x |
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| 30 | #else |
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| 31 | #define PRINT(x) |
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| 32 | #endif |
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[ada4575] | 33 | |
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[13de4478] | 34 | namespace { |
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| 35 | |
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[e15853c] | 36 | // GENERATED START, DO NOT EDIT |
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[b2ea0cd] | 37 | // GENERATED BY BasicTypes-gen.cpp |
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[cdcddfe1] | 38 | /* EXTENDED INTEGRAL RANK HIERARCHY (root to leaves) |
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[e15853c] | 39 | _Bool |
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[7870799] | 40 | char signed char unsigned char |
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| 41 | signed short int unsigned short int |
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| 42 | signed int unsigned int |
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| 43 | signed long int unsigned long int |
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| 44 | signed long long int unsigned long long int |
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| 45 | __int128 unsigned __int128 |
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| 46 | _Float16 _Float16 _Complex |
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| 47 | _Float32 _Float32 _Complex |
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| 48 | float float _Complex |
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| 49 | _Float32x _Float32x _Complex |
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| 50 | _Float64 _Float64 _Complex |
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| 51 | double double _Complex |
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| 52 | _Float64x _Float64x _Complex |
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[e15853c] | 53 | __float80 |
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[7870799] | 54 | _Float128 _Float128 _Complex |
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[e15853c] | 55 | __float128 |
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[7870799] | 56 | long double long double _Complex |
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| 57 | _Float128x _Float128x _Complex |
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[cdcddfe1] | 58 | */ |
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[e15853c] | 59 | // GENERATED END |
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[cdcddfe1] | 60 | |
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[e15853c] | 61 | // GENERATED START, DO NOT EDIT |
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[b2ea0cd] | 62 | // GENERATED BY BasicTypes-gen.cpp |
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[7a780ad] | 63 | static const int costMatrix[ast::BasicKind::NUMBER_OF_BASIC_TYPES][ast::BasicKind::NUMBER_OF_BASIC_TYPES] = { // path length from root to node |
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[3a55d9f] | 64 | /* B C SC UC SI SUI I UI LI LUI LLI LLUI IB UIB _FH _FH _F _FC F FC _FX _FXC FD _FDC D DC F80X_FDXC F80 _FB_FLDC FB LD LDC _FBX_FLDXC */ |
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| 65 | /* B */ { 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 13, 13, 14, 14, 15, 15, 16, 17, 16, 18, 17, }, |
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| 66 | /* C */ { -1, 0, 1, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 13, 13, 14, 14, 15, 16, 15, 17, 16, }, |
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| 67 | /* SC */ { -1, -1, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 13, 13, 14, 14, 15, 16, 15, 17, 16, }, |
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| 68 | /* UC */ { -1, -1, -1, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 13, 13, 14, 14, 15, 16, 15, 17, 16, }, |
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| 69 | /* SI */ { -1, -1, -1, -1, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 13, 13, 14, 15, 14, 16, 15, }, |
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| 70 | /* SUI */ { -1, -1, -1, -1, -1, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 6, 6, 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 13, 13, 14, 15, 14, 16, 15, }, |
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| 71 | /* I */ { -1, -1, -1, -1, -1, -1, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 13, 14, 13, 15, 14, }, |
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| 72 | /* UI */ { -1, -1, -1, -1, -1, -1, -1, 0, 1, 1, 2, 2, 3, 3, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 13, 14, 13, 15, 14, }, |
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| 73 | /* LI */ { -1, -1, -1, -1, -1, -1, -1, -1, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 13, 12, 14, 13, }, |
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| 74 | /* LUI */ { -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, 1, 1, 2, 2, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 13, 12, 14, 13, }, |
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| 75 | /* LLI */ { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 10, 10, 11, 12, 11, 13, 12, }, |
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| 76 | /* LLUI */ { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, 1, 1, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 10, 10, 11, 12, 11, 13, 12, }, |
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| 77 | /* IB */ { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 10, 11, 10, 12, 11, }, |
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| 78 | /* UIB */ { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 10, 11, 10, 12, 11, }, |
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| 79 | /* _FH */ { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 10, 9, 11, 10, }, |
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| 80 | /* _FH */ { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, -1, 1, -1, 2, -1, 3, -1, 4, -1, 5, -1, 6, -1, -1, 7, -1, -1, 8, -1, 9, }, |
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| 81 | /* _F */ { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 9, 8, 10, 9, }, |
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| 82 | /* _FC */ { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, -1, 1, -1, 2, -1, 3, -1, 4, -1, 5, -1, -1, 6, -1, -1, 7, -1, 8, }, |
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| 83 | /* F */ { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 8, 7, 9, 8, }, |
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| 84 | /* FC */ { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, -1, 1, -1, 2, -1, 3, -1, 4, -1, -1, 5, -1, -1, 6, -1, 7, }, |
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| 85 | /* _FX */ { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 7, 6, 8, 7, }, |
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| 86 | /* _FXC */ { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, -1, 1, -1, 2, -1, 3, -1, -1, 4, -1, -1, 5, -1, 6, }, |
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| 87 | /* FD */ { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 6, 5, 7, 6, }, |
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| 88 | /* _FDC */ { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, -1, 1, -1, 2, -1, -1, 3, -1, -1, 4, -1, 5, }, |
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| 89 | /* D */ { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, 1, 1, 2, 2, 3, 3, 4, 5, 4, 6, 5, }, |
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| 90 | /* DC */ { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, -1, 1, -1, -1, 2, -1, -1, 3, -1, 4, }, |
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| 91 | /* F80X */ { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, 1, 1, 2, 2, 3, 4, 3, 5, 4, }, |
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| 92 | /* _FDXC */ { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, -1, -1, 1, -1, -1, 2, -1, 3, }, |
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| 93 | /* F80 */ { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 1, 0, 1, 2, 2, 3, 3, 4, 4, }, |
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| 94 | /* _FB */ { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, 1, 1, 2, 2, 3, 3, }, |
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| 95 | /* _FLDC */ { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, -1, -1, 1, -1, 2, }, |
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| 96 | /* FB */ { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 1, 0, 1, 2, 2, 3, }, |
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| 97 | /* LD */ { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, 1, 1, 2, }, |
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| 98 | /* LDC */ { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, -1, 1, }, |
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| 99 | /* _FBX */ { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, 1, }, |
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[ef5b828] | 100 | /* _FLDXC */ { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, }, |
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[e15853c] | 101 | }; // costMatrix |
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[1c9568f0] | 102 | static const int maxIntCost = 15; |
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[e15853c] | 103 | // GENERATED END |
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[cdcddfe1] | 104 | static_assert( |
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[7a780ad] | 105 | sizeof(costMatrix)/sizeof(costMatrix[0][0]) == ast::BasicKind::NUMBER_OF_BASIC_TYPES * ast::BasicKind::NUMBER_OF_BASIC_TYPES, |
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[cdcddfe1] | 106 | "Missing row in the cost matrix" |
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| 107 | ); |
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| 108 | |
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[e15853c] | 109 | // GENERATED START, DO NOT EDIT |
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[b2ea0cd] | 110 | // GENERATED BY BasicTypes-gen.cpp |
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[7a780ad] | 111 | static const int signMatrix[ast::BasicKind::NUMBER_OF_BASIC_TYPES][ast::BasicKind::NUMBER_OF_BASIC_TYPES] = { // number of sign changes in safe conversion |
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[3a55d9f] | 112 | /* B C SC UC SI SUI I UI LI LUI LLI LLUI IB UIB _FH _FH _F _FC F FC _FX _FXC FD _FDC D DC F80X_FDXC F80 _FB_FLDC FB LD LDC _FBX_FLDXC */ |
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| 113 | /* B */ { 0, 0, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, }, |
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| 114 | /* C */ { -1, 0, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, }, |
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| 115 | /* SC */ { -1, -1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, }, |
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| 116 | /* UC */ { -1, -1, -1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, }, |
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| 117 | /* SI */ { -1, -1, -1, -1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, }, |
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| 118 | /* SUI */ { -1, -1, -1, -1, -1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, }, |
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| 119 | /* I */ { -1, -1, -1, -1, -1, -1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, }, |
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| 120 | /* UI */ { -1, -1, -1, -1, -1, -1, -1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, }, |
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| 121 | /* LI */ { -1, -1, -1, -1, -1, -1, -1, -1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, }, |
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| 122 | /* LUI */ { -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, }, |
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| 123 | /* LLI */ { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, }, |
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| 124 | /* LLUI */ { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, }, |
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| 125 | /* IB */ { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, }, |
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| 126 | /* UIB */ { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, }, |
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| 127 | /* _FH */ { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, }, |
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| 128 | /* _FH */ { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, -1, 0, -1, 0, -1, 0, -1, 0, -1, 0, -1, 0, -1, -1, 0, -1, -1, 0, -1, 0, }, |
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| 129 | /* _F */ { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, }, |
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| 130 | /* _FC */ { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, -1, 0, -1, 0, -1, 0, -1, 0, -1, 0, -1, -1, 0, -1, -1, 0, -1, 0, }, |
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| 131 | /* F */ { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, }, |
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| 132 | /* FC */ { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, -1, 0, -1, 0, -1, 0, -1, 0, -1, -1, 0, -1, -1, 0, -1, 0, }, |
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| 133 | /* _FX */ { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, }, |
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| 134 | /* _FXC */ { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, -1, 0, -1, 0, -1, 0, -1, -1, 0, -1, -1, 0, -1, 0, }, |
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| 135 | /* FD */ { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, }, |
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| 136 | /* _FDC */ { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, -1, 0, -1, 0, -1, -1, 0, -1, -1, 0, -1, 0, }, |
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| 137 | /* D */ { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, }, |
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| 138 | /* DC */ { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, -1, 0, -1, -1, 0, -1, -1, 0, -1, 0, }, |
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| 139 | /* F80X */ { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, }, |
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| 140 | /* _FDXC */ { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, -1, -1, 0, -1, -1, 0, -1, 0, }, |
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| 141 | /* F80 */ { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, }, |
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| 142 | /* _FB */ { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, 0, 0, 0, 0, 0, 0, }, |
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| 143 | /* _FLDC */ { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, -1, -1, 0, -1, 0, }, |
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| 144 | /* FB */ { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, 0, 0, 0, 0, 0, }, |
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| 145 | /* LD */ { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, 0, 0, 0, }, |
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| 146 | /* LDC */ { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, -1, 0, }, |
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| 147 | /* _FBX */ { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, 0, }, |
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[ef5b828] | 148 | /* _FLDXC */ { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, }, |
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[e15853c] | 149 | }; // signMatrix |
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| 150 | // GENERATED END |
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[cdcddfe1] | 151 | static_assert( |
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[7a780ad] | 152 | sizeof(signMatrix)/sizeof(signMatrix[0][0]) == ast::BasicKind::NUMBER_OF_BASIC_TYPES * ast::BasicKind::NUMBER_OF_BASIC_TYPES, |
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[cdcddfe1] | 153 | "Missing row in the sign matrix" |
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| 154 | ); |
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[a32b204] | 155 | |
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[cf32116] | 156 | int localPtrsAssignable(const ast::Type * t1, const ast::Type * t2, |
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| 157 | const ast::SymbolTable &, const ast::TypeEnvironment & env ) { |
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| 158 | return ptrsAssignable( t1, t2, env ); |
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| 159 | } |
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[fb2bde4] | 160 | } |
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| 161 | |
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| 162 | Cost conversionCost( |
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[cf32116] | 163 | const ast::Type * src, const ast::Type * dst, bool srcIsLvalue, |
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[d3aa55e9] | 164 | const ast::SymbolTable & symtab, const ast::TypeEnvironment & env |
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[fb2bde4] | 165 | ) { |
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| 166 | if ( const ast::TypeInstType * inst = dynamic_cast< const ast::TypeInstType * >( dst ) ) { |
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[3e5dd913] | 167 | if ( const ast::EqvClass * eqv = env.lookup( *inst ) ) { |
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[fb2bde4] | 168 | if ( eqv->bound ) { |
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[cf32116] | 169 | return conversionCost(src, eqv->bound, srcIsLvalue, symtab, env ); |
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[fb2bde4] | 170 | } else { |
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| 171 | return Cost::infinity; |
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| 172 | } |
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| 173 | } else if ( const ast::NamedTypeDecl * named = symtab.lookupType( inst->name ) ) { |
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| 174 | const ast::TypeDecl * type = dynamic_cast< const ast::TypeDecl * >( named ); |
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| 175 | assertf( type, "Unexpected typedef." ); |
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| 176 | if ( type->base ) { |
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[cf32116] | 177 | return conversionCost( src, type->base, srcIsLvalue, symtab, env ) + Cost::safe; |
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[fb2bde4] | 178 | } |
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| 179 | } |
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| 180 | } |
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[251ce80] | 181 | if ( typesCompatibleIgnoreQualifiers( src, dst, env ) ) { |
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[9d5089e] | 182 | return Cost::zero; |
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[fb2bde4] | 183 | } else if ( dynamic_cast< const ast::VoidType * >( dst ) ) { |
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| 184 | return Cost::safe; |
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| 185 | } else if ( const ast::ReferenceType * refType = |
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| 186 | dynamic_cast< const ast::ReferenceType * >( dst ) ) { |
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[cf32116] | 187 | return convertToReferenceCost( src, refType, srcIsLvalue, symtab, env, localPtrsAssignable ); |
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[fb2bde4] | 188 | } else { |
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[0bd3faf] | 189 | return ast::Pass<ConversionCost>::read( src, dst, srcIsLvalue, symtab, env, conversionCost ); |
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[fb2bde4] | 190 | } |
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| 191 | } |
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| 192 | |
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[85855b0] | 193 | Cost enumCastCost ( |
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| 194 | const ast::EnumInstType * src, const ast::EnumInstType * dst, |
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| 195 | const ast::SymbolTable & symtab, const ast::TypeEnvironment & env |
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| 196 | ); |
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| 197 | |
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[cf32116] | 198 | static Cost convertToReferenceCost( const ast::Type * src, const ast::Type * dst, bool srcIsLvalue, |
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[0f19f5e5] | 199 | int diff, const ast::SymbolTable & symtab, const ast::TypeEnvironment & env, |
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[cf32116] | 200 | PtrsCalculation func ) { |
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[fb2bde4] | 201 | if ( 0 < diff ) { |
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| 202 | Cost cost = convertToReferenceCost( |
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[cf32116] | 203 | strict_dynamic_cast< const ast::ReferenceType * >( src )->base, dst, |
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| 204 | srcIsLvalue, (diff - 1), symtab, env, func ); |
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[fb2bde4] | 205 | cost.incReference(); |
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| 206 | return cost; |
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| 207 | } else if ( diff < -1 ) { |
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| 208 | Cost cost = convertToReferenceCost( |
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| 209 | src, strict_dynamic_cast< const ast::ReferenceType * >( dst )->base, |
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[cf32116] | 210 | srcIsLvalue, (diff + 1), symtab, env, func ); |
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[fb2bde4] | 211 | cost.incReference(); |
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| 212 | return cost; |
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| 213 | } else if ( 0 == diff ) { |
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| 214 | const ast::ReferenceType * srcAsRef = dynamic_cast< const ast::ReferenceType * >( src ); |
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| 215 | const ast::ReferenceType * dstAsRef = dynamic_cast< const ast::ReferenceType * >( dst ); |
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| 216 | if ( srcAsRef && dstAsRef ) { |
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| 217 | ast::CV::Qualifiers tq1 = srcAsRef->base->qualifiers; |
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| 218 | ast::CV::Qualifiers tq2 = dstAsRef->base->qualifiers; |
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| 219 | if ( tq1 <= tq2 && typesCompatibleIgnoreQualifiers( |
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[251ce80] | 220 | srcAsRef->base, dstAsRef->base, env ) ) { |
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[fb2bde4] | 221 | if ( tq1 == tq2 ) { |
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| 222 | return Cost::zero; |
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| 223 | } else { |
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| 224 | return Cost::safe; |
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| 225 | } |
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| 226 | } else { |
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| 227 | int assignResult = func( srcAsRef->base, dstAsRef->base, symtab, env ); |
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| 228 | if ( 0 < assignResult ) { |
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| 229 | return Cost::safe; |
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| 230 | } else if ( assignResult < 0 ) { |
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| 231 | return Cost::unsafe; |
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| 232 | } |
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| 233 | } |
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| 234 | } else { |
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[0bd3faf] | 235 | return ast::Pass<ConversionCost>::read( src, dst, srcIsLvalue, symtab, env, conversionCost ); |
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[fb2bde4] | 236 | } |
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[5ccc733] | 237 | if (const ast::EnumInstType * srcAsInst = dynamic_cast< const ast::EnumInstType * >( src )) { |
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| 238 | if (srcAsInst->base && !srcAsInst->base->isCfa) { |
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| 239 | static const ast::BasicType* integer = new ast::BasicType( ast::BasicKind::UnsignedInt ); |
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| 240 | return ast::Pass<ConversionCost>::read( integer, dst, srcIsLvalue, symtab, env, conversionCost ); |
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| 241 | } |
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| 242 | } |
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[fb2bde4] | 243 | } else { |
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| 244 | assert( -1 == diff ); |
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| 245 | const ast::ReferenceType * dstAsRef = dynamic_cast< const ast::ReferenceType * >( dst ); |
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| 246 | assert( dstAsRef ); |
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[5ccc733] | 247 | auto dstBaseType = dstAsRef->base; |
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| 248 | const ast::Type * newSrc = src; |
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| 249 | if ( dynamic_cast< const ast::EnumInstType * >( src ) && dstBaseType.as<ast::BasicType>() ) { |
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| 250 | newSrc = new ast::BasicType( ast::BasicKind::UnsignedInt ); |
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| 251 | } |
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| 252 | if ( typesCompatibleIgnoreQualifiers( newSrc, dstAsRef->base, env ) ) { |
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[cf32116] | 253 | if ( srcIsLvalue ) { |
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[fb2bde4] | 254 | if ( src->qualifiers == dstAsRef->base->qualifiers ) { |
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| 255 | return Cost::reference; |
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| 256 | } else if ( src->qualifiers < dstAsRef->base->qualifiers ) { |
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| 257 | return Cost::safe; |
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| 258 | } else { |
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| 259 | return Cost::unsafe; |
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| 260 | } |
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| 261 | } else if ( dstAsRef->base->is_const() ) { |
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| 262 | return Cost::safe; |
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| 263 | } else { |
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| 264 | return Cost::unsafe; |
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| 265 | } |
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| 266 | } |
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| 267 | } |
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| 268 | return Cost::infinity; |
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| 269 | } |
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| 270 | |
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| 271 | Cost convertToReferenceCost( const ast::Type * src, const ast::ReferenceType * dst, |
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[cf32116] | 272 | bool srcIsLvalue, const ast::SymbolTable & symtab, const ast::TypeEnvironment & env, |
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| 273 | PtrsCalculation func ) { |
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[fb2bde4] | 274 | int sdepth = src->referenceDepth(), ddepth = dst->referenceDepth(); |
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[cf32116] | 275 | return convertToReferenceCost( src, dst, srcIsLvalue, sdepth - ddepth, symtab, env, func ); |
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[fb2bde4] | 276 | } |
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| 277 | |
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[0bd3faf] | 278 | void ConversionCost::postvisit( const ast::VoidType * voidType ) { |
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[fb2bde4] | 279 | (void)voidType; |
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| 280 | cost = Cost::infinity; |
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| 281 | } |
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| 282 | |
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[0bd3faf] | 283 | void ConversionCost::conversionCostFromBasicToBasic( const ast::BasicType * src, const ast::BasicType* dest ) { |
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[fc134a48] | 284 | int tableResult = costMatrix[ src->kind ][ dest->kind ]; |
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| 285 | if ( tableResult == -1 ) { |
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| 286 | cost = Cost::unsafe; |
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| 287 | } else { |
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| 288 | cost = Cost::zero; |
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| 289 | cost.incSafe( tableResult ); |
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| 290 | cost.incSign( signMatrix[ src->kind ][ dest->kind ] ); |
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| 291 | } |
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| 292 | } |
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| 293 | |
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[0bd3faf] | 294 | void ConversionCost::postvisit( const ast::BasicType * basicType ) { |
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[fb2bde4] | 295 | if ( const ast::BasicType * dstAsBasic = dynamic_cast< const ast::BasicType * >( dst ) ) { |
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[fc134a48] | 296 | conversionCostFromBasicToBasic( basicType, dstAsBasic ); |
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[d3aa55e9] | 297 | } else if ( auto dstAsEnumInst = dynamic_cast< const ast::EnumInstType * >( dst ) ) { |
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[5ccc733] | 298 | if ( dstAsEnumInst->base && !dstAsEnumInst->base->isCfa ) { |
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| 299 | cost = Cost::safe; |
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[af746cc] | 300 | } |
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[fb2bde4] | 301 | } |
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| 302 | } |
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| 303 | |
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[0bd3faf] | 304 | void ConversionCost::postvisit( const ast::PointerType * pointerType ) { |
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[fb2bde4] | 305 | if ( const ast::PointerType * dstAsPtr = dynamic_cast< const ast::PointerType * >( dst ) ) { |
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| 306 | ast::CV::Qualifiers tq1 = pointerType->base->qualifiers; |
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| 307 | ast::CV::Qualifiers tq2 = dstAsPtr->base->qualifiers; |
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| 308 | if ( tq1 <= tq2 && typesCompatibleIgnoreQualifiers( |
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[251ce80] | 309 | pointerType->base, dstAsPtr->base, env ) ) { |
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[fb2bde4] | 310 | if ( tq1 == tq2 ) { |
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| 311 | cost = Cost::zero; |
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| 312 | } else { |
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| 313 | cost = Cost::safe; |
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| 314 | } |
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[ef1da0e2] | 315 | } |
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| 316 | /* |
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| 317 | else if ( const ast::FunctionType * dstFunc = dstAsPtr->base.as<ast::FunctionType>()) { |
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| 318 | if (const ast::FunctionType * srcFunc = pointerType->base.as<ast::FunctionType>()) { |
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| 319 | if (dstFunc->params.empty() && dstFunc->isVarArgs ) { |
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| 320 | cost = Cost::unsafe; // assign any function to variadic fptr |
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| 321 | } |
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| 322 | } |
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| 323 | else { |
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| 324 | ast::AssertionSet need, have; // unused |
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| 325 | ast::OpenVarSet open; |
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| 326 | env.extractOpenVars(open); |
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| 327 | ast::TypeEnvironment tenv = env; |
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| 328 | if ( unify(dstAsPtr->base, pointerType->base, tenv, need, have, open, symtab) ) { |
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| 329 | cost = Cost::safe; |
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| 330 | } |
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| 331 | } |
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| 332 | // else infinity |
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| 333 | } |
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| 334 | */ |
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| 335 | else { |
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[fb2bde4] | 336 | int assignResult = ptrsAssignable( pointerType->base, dstAsPtr->base, env ); |
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| 337 | if ( 0 < assignResult && tq1 <= tq2 ) { |
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| 338 | if ( tq1 == tq2 ) { |
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| 339 | cost = Cost::safe; |
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| 340 | } else { |
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| 341 | cost = Cost::safe + Cost::safe; |
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| 342 | } |
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| 343 | } else if ( assignResult < 0 ) { |
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| 344 | cost = Cost::unsafe; |
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| 345 | } // else Cost::infinity |
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| 346 | } |
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| 347 | } |
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| 348 | } |
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| 349 | |
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[0bd3faf] | 350 | void ConversionCost::postvisit( const ast::ArrayType * arrayType ) { |
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[fb2bde4] | 351 | (void)arrayType; |
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| 352 | } |
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| 353 | |
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[0bd3faf] | 354 | void ConversionCost::postvisit( const ast::ReferenceType * refType ) { |
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[fb2bde4] | 355 | assert( nullptr == dynamic_cast< const ast::ReferenceType * >( dst ) ); |
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| 356 | |
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[cf32116] | 357 | cost = costCalc( refType->base, dst, srcIsLvalue, symtab, env ); |
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[46da46b] | 358 | |
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| 359 | // xxx - should qualifiers be considered in pass-by-value? |
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| 360 | /* |
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[fb2bde4] | 361 | if ( refType->base->qualifiers == dst->qualifiers ) { |
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| 362 | cost.incReference(); |
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| 363 | } else if ( refType->base->qualifiers < dst->qualifiers ) { |
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| 364 | cost.incSafe(); |
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| 365 | } else { |
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| 366 | cost.incUnsafe(); |
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| 367 | } |
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[46da46b] | 368 | */ |
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| 369 | cost.incReference(); |
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[fb2bde4] | 370 | } |
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| 371 | |
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[0bd3faf] | 372 | void ConversionCost::postvisit( const ast::FunctionType * functionType ) { |
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[fb2bde4] | 373 | (void)functionType; |
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| 374 | } |
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| 375 | |
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[af746cc] | 376 | void ConversionCost::postvisit( const ast::EnumInstType * inst ) { |
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[85855b0] | 377 | if ( auto dstInst = dynamic_cast<const ast::EnumInstType *>( dst ) ) { |
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| 378 | cost = enumCastCost(inst, dstInst, symtab, env); |
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[5ccc733] | 379 | } else if ( !inst->base->isCfa ) { |
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[d3aa55e9] | 380 | static ast::ptr<ast::BasicType> integer = { new ast::BasicType( ast::BasicKind::SignedInt ) }; |
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| 381 | cost = costCalc( integer, dst, srcIsLvalue, symtab, env ); |
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[fc1a3e2] | 382 | } |
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[d3aa55e9] | 383 | // cost.incUnsafe(); |
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[0522ebe] | 384 | } |
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| 385 | |
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[0bd3faf] | 386 | void ConversionCost::postvisit( const ast::TraitInstType * traitInstType ) { |
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[fb2bde4] | 387 | (void)traitInstType; |
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| 388 | } |
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| 389 | |
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[0bd3faf] | 390 | void ConversionCost::postvisit( const ast::TypeInstType * typeInstType ) { |
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[3e5dd913] | 391 | if ( const ast::EqvClass * eqv = env.lookup( *typeInstType ) ) { |
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[cf32116] | 392 | cost = costCalc( eqv->bound, dst, srcIsLvalue, symtab, env ); |
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[fb2bde4] | 393 | } else if ( const ast::TypeInstType * dstAsInst = |
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| 394 | dynamic_cast< const ast::TypeInstType * >( dst ) ) { |
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[3e5dd913] | 395 | if ( *typeInstType == *dstAsInst ) { |
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[fb2bde4] | 396 | cost = Cost::zero; |
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| 397 | } |
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| 398 | } else if ( const ast::NamedTypeDecl * namedType = symtab.lookupType( typeInstType->name ) ) { |
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| 399 | const ast::TypeDecl * type = dynamic_cast< const ast::TypeDecl * >( namedType ); |
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| 400 | assertf( type, "Unexpected typedef."); |
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| 401 | if ( type->base ) { |
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[cf32116] | 402 | cost = costCalc( type->base, dst, srcIsLvalue, symtab, env ) + Cost::safe; |
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[fb2bde4] | 403 | } |
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| 404 | } |
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| 405 | } |
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| 406 | |
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[0bd3faf] | 407 | void ConversionCost::postvisit( const ast::TupleType * tupleType ) { |
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[fb2bde4] | 408 | Cost c = Cost::zero; |
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| 409 | if ( const ast::TupleType * dstAsTuple = dynamic_cast< const ast::TupleType * >( dst ) ) { |
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| 410 | auto srcIt = tupleType->types.begin(); |
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| 411 | auto dstIt = dstAsTuple->types.begin(); |
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| 412 | auto srcEnd = tupleType->types.end(); |
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| 413 | auto dstEnd = dstAsTuple->types.end(); |
---|
| 414 | while ( srcIt != srcEnd && dstIt != dstEnd ) { |
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[cf32116] | 415 | Cost newCost = costCalc( * srcIt++, * dstIt++, srcIsLvalue, symtab, env ); |
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[fb2bde4] | 416 | if ( newCost == Cost::infinity ) { |
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| 417 | return; |
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| 418 | } |
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| 419 | c += newCost; |
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| 420 | } |
---|
| 421 | if ( dstIt != dstEnd ) { |
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| 422 | cost = Cost::infinity; |
---|
| 423 | } else { |
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| 424 | cost = c; |
---|
| 425 | } |
---|
| 426 | } |
---|
| 427 | } |
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| 428 | |
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[0bd3faf] | 429 | void ConversionCost::postvisit( const ast::VarArgsType * varArgsType ) { |
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[fb2bde4] | 430 | (void)varArgsType; |
---|
| 431 | if ( dynamic_cast< const ast::VarArgsType * >( dst ) ) { |
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| 432 | cost = Cost::zero; |
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| 433 | } |
---|
| 434 | } |
---|
| 435 | |
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[0bd3faf] | 436 | void ConversionCost::postvisit( const ast::ZeroType * zeroType ) { |
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[fb2bde4] | 437 | (void)zeroType; |
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| 438 | if ( dynamic_cast< const ast::ZeroType * >( dst ) ) { |
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| 439 | cost = Cost::zero; |
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| 440 | } else if ( const ast::BasicType * dstAsBasic = |
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| 441 | dynamic_cast< const ast::BasicType * >( dst ) ) { |
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[7a780ad] | 442 | int tableResult = costMatrix[ ast::BasicKind::SignedInt ][ dstAsBasic->kind ]; |
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[fb2bde4] | 443 | if ( -1 == tableResult ) { |
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| 444 | cost = Cost::unsafe; |
---|
| 445 | } else { |
---|
| 446 | cost = Cost::zero; |
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| 447 | cost.incSafe( tableResult + 1 ); |
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[7a780ad] | 448 | cost.incSign( signMatrix[ ast::BasicKind::SignedInt ][ dstAsBasic->kind ] ); |
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[fb2bde4] | 449 | } |
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[46da46b] | 450 | // this has the effect of letting any expr such as x+0, x+1 to be typed |
---|
| 451 | // the same as x, instead of at least int. are we willing to sacrifice this little |
---|
| 452 | // bit of coherence with C? |
---|
| 453 | // TODO: currently this does not work when no zero/one overloads exist. Find a fix for it. |
---|
| 454 | // cost = Cost::zero; |
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[2f98fb2] | 455 | } else if ( dynamic_cast< const ast::PointerType * >( dst ) ) { |
---|
| 456 | cost = Cost::zero; |
---|
| 457 | // +1 for zero_t ->, +1 for disambiguation |
---|
| 458 | cost.incSafe( maxIntCost + 2 ); |
---|
[46da46b] | 459 | // assuming 0p is supposed to be used for pointers? |
---|
[af746cc] | 460 | } else if ( auto dstAsEnumInst = dynamic_cast< const ast::EnumInstType * >( dst ) ) { |
---|
[5ccc733] | 461 | if ( dstAsEnumInst->base && !dstAsEnumInst->base->isCfa ) { |
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| 462 | cost = Cost::safe; |
---|
[af746cc] | 463 | } |
---|
[fb2bde4] | 464 | } |
---|
| 465 | } |
---|
| 466 | |
---|
[0bd3faf] | 467 | void ConversionCost::postvisit( const ast::OneType * oneType ) { |
---|
[fb2bde4] | 468 | (void)oneType; |
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| 469 | if ( dynamic_cast< const ast::OneType * >( dst ) ) { |
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| 470 | cost = Cost::zero; |
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| 471 | } else if ( const ast::BasicType * dstAsBasic = |
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[0bd3faf] | 472 | dynamic_cast< const ast::BasicType * >( dst ) ) { |
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[7a780ad] | 473 | int tableResult = costMatrix[ ast::BasicKind::SignedInt ][ dstAsBasic->kind ]; |
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[fb2bde4] | 474 | if ( -1 == tableResult ) { |
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| 475 | cost = Cost::unsafe; |
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| 476 | } else { |
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| 477 | cost = Cost::zero; |
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| 478 | cost.incSafe( tableResult + 1 ); |
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[7a780ad] | 479 | cost.incSign( signMatrix[ ast::BasicKind::SignedInt ][ dstAsBasic->kind ] ); |
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[fb2bde4] | 480 | } |
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[af746cc] | 481 | } else if ( auto dstAsEnumInst = dynamic_cast< const ast::EnumInstType * >( dst ) ) { |
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[5ccc733] | 482 | if ( dstAsEnumInst->base && !dstAsEnumInst->base->isCfa ) { |
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| 483 | cost = Cost::safe; |
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[af746cc] | 484 | } |
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[9d5089e] | 485 | } |
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[fb2bde4] | 486 | } |
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[0bd3faf] | 487 | |
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[85855b0] | 488 | // (dst) src is safe is src is a subtype of dst, or dst {inline src, ...} |
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| 489 | Cost enumCastCost ( |
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| 490 | const ast::EnumInstType * src, const ast::EnumInstType * dst, |
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| 491 | const ast::SymbolTable & symtab, const ast::TypeEnvironment & env |
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| 492 | ) { |
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| 493 | auto srcDecl = src->base; |
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| 494 | auto dstDecl = dst->base; |
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| 495 | if (srcDecl->name == dstDecl->name) return Cost::safe; |
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| 496 | Cost minCost = Cost::infinity; |
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| 497 | for (auto child: dstDecl->inlinedDecl) { |
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| 498 | Cost c = enumCastCost(src, child, symtab, env) + Cost::safe; |
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| 499 | if (c<minCost) minCost = c; |
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| 500 | } |
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| 501 | return minCost; |
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| 502 | } |
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| 503 | |
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| 504 | |
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[0bd3faf] | 505 | // size_t ConversionCost::traceId = Stats::Heap::new_stacktrace_id("ConversionCost"); |
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[fb2bde4] | 506 | |
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[51b7345] | 507 | } // namespace ResolvExpr |
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[a32b204] | 508 | |
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| 509 | // Local Variables: // |
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| 510 | // tab-width: 4 // |
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| 511 | // mode: c++ // |
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| 512 | // compile-command: "make install" // |
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| 513 | // End: // |
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