1 /* -*- mode: C; c-basic-offset: 3; -*- */ 2 3 /* 4 This file is part of MemCheck, a heavyweight Valgrind tool for 5 detecting memory errors. 6 7 Copyright (C) 2012-2015 Florian Krohm 8 9 This program is free software; you can redistribute it and/or 10 modify it under the terms of the GNU General Public License as 11 published by the Free Software Foundation; either version 2 of the 12 License, or (at your option) any later version. 13 14 This program is distributed in the hope that it will be useful, but 15 WITHOUT ANY WARRANTY; without even the implied warranty of 16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 17 General Public License for more details. 18 19 You should have received a copy of the GNU General Public License 20 along with this program; if not, write to the Free Software 21 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 22 02111-1307, USA. 23 24 The GNU General Public License is contained in the file COPYING. 25 */ 26 27 #ifndef VTEST_H 28 #define VTEST_H 29 30 /* Main header file for the V-bit tester */ 31 32 #include <stdint.h> // uint64_t 33 #include "libvex.h" // IROp 34 #include "vbits.h" // vbits_t 35 36 37 /* How undefinedness propagates from input to output */ 38 39 typedef enum { 40 // For any undefined input bit, all output bits are defined. 41 UNDEF_NONE, 42 43 // For any undefined input bit, all output bits are undefined. 44 UNDEF_ALL, 45 46 // For each undefined input bit, the corresponding output bit 47 // in the same position is undefined. No other bit is undefined. 48 UNDEF_SAME, 49 50 // For each undefined input bit, the corresponding output bit 51 // in the same position is undefined. No other bit is undefined. 52 // If the corresponding output bit does not exist, the input bit 53 // does not cause any output bits to be undefined. 54 UNDEF_TRUNC, 55 56 // For each undefined input bit, the corresponding output bit 57 // in the same position is undefined. No other bit is undefined. 58 // Output bits that do no not have a corresponding input bit are 59 // defined. 60 UNDEF_ZEXT, 61 62 // For each undefined input bit, the corresponding output bit 63 // in the same position is undefined. If the MSB of the input value 64 // is undefined, so are all output bits with higher significance 65 // than the MSB input bit. 66 UNDEF_SEXT, 67 68 // For each undefined input bit, the corresponding output bit 69 // and all output bits with higher significance are undefined. 70 UNDEF_LEFT, 71 72 UNDEF_CONCAT, // nHLto2n ops e.g. Iop_32HLto64 73 UNDEF_UPPER, // 2nHIton ops e.g. Iop_64HIto32 74 UNDEF_SHL, // shift-left 75 UNDEF_SHR, // logical shift-right 76 UNDEF_SAR, // arithmetic shift-right 77 UNDEF_OR, // bitwise OR operation 78 UNDEF_AND, // bitwise AND operation 79 80 UNDEF_ORD, // Iop_CmpORD compare 81 82 // For IROps I don't know anything about 83 UNDEF_UNKNOWN 84 } undef_t; 85 86 87 // Everything we want to know about an IROp 88 typedef struct { 89 IROp op; 90 const char *name; 91 undef_t undef_kind; 92 int shift_amount_is_immediate; 93 // Indicate whether IROp can be tested on a particular architecture 94 unsigned s390x : 1; 95 unsigned amd64 : 1; 96 unsigned ppc32 : 1; 97 unsigned ppc64 : 1; 98 unsigned arm : 1; 99 unsigned arm64 : 1; 100 unsigned x86 : 1; 101 unsigned mips32 : 1; 102 unsigned mips64 : 1; 103 unsigned tilegx : 1; 104 } irop_t; 105 106 107 /* The maximum number of input operands */ 108 #define MAX_OPERANDS 4 109 110 /* An operand of an IROp (also used for the result) */ 111 typedef struct { 112 IRType type; 113 vbits_t vbits; 114 value_t value; 115 } opnd_t; 116 117 118 /* Carries the data needed to execute and evaluate a test. I.e. 119 inputs and results (V-bits and actual value). */ 120 typedef struct { 121 opnd_t result; 122 opnd_t opnds[MAX_OPERANDS]; 123 unsigned rounding_mode; 124 } test_data_t; 125 126 127 /* Function prototypes */ 128 irop_t *get_irop(IROp); 129 int is_floating_point_op_with_rounding_mode(IROp); 130 int get_num_operands(IROp); 131 132 void print_opnd(FILE *, const opnd_t *); 133 134 int test_unary_op(const irop_t *, test_data_t *); 135 int test_binary_op(const irop_t *, test_data_t *); 136 int test_ternary_op(const irop_t *, test_data_t *); 137 int test_qernary_op(const irop_t *, test_data_t *); 138 139 void valgrind_vex_init_for_iri(IRICB *); 140 void valgrind_execute_test(const irop_t *, test_data_t *); 141 142 IRICB new_iricb(const irop_t *, test_data_t *); 143 144 void panic(const char *) __attribute__((noreturn)); 145 void complain(const irop_t *, const test_data_t *, vbits_t expected); 146 147 /* Imported from VEX */ 148 unsigned sizeof_irtype(IRType); 149 void typeof_primop(IROp, IRType *t_dst, IRType *t_arg1, IRType *t_arg2, 150 IRType *t_arg3, IRType *t_arg4); 151 152 static __inline__ unsigned bitsof_irtype(IRType type) 153 { 154 return type == Ity_I1 ? 1 : sizeof_irtype(type) * 8; 155 } 156 157 158 /* Exported variables */ 159 extern int verbose; 160 161 #endif // VTEST_H 162
