1 /* -*- mode: C; c-basic-offset: 3; -*- */ 2 3 #ifndef VTEST_H 4 #define VTEST_H 5 6 /* Main header file for the V-bit tester */ 7 8 #include <stdint.h> // uint64_t 9 #include "libvex.h" // IROp 10 #include "vbits.h" // vbits_t 11 12 13 /* How undefinedness propagates from input to output */ 14 15 typedef enum { 16 // For any undefined input bit, all output bits are defined. 17 UNDEF_NONE, 18 19 // For any undefined input bit, all output bits are undefined. 20 UNDEF_ALL, 21 22 // For each undefined input bit, the corresponding output bit 23 // in the same position is undefined. No other bit is undefined. 24 UNDEF_SAME, 25 26 // For each undefined input bit, the corresponding output bit 27 // in the same position is undefined. No other bit is undefined. 28 // If the corresponding output bit does not exist, the input bit 29 // does not cause any output bits to be undefined. 30 UNDEF_TRUNC, 31 32 // For each undefined input bit, the corresponding output bit 33 // in the same position is undefined. No other bit is undefined. 34 // Output bits that do no not have a corresponding input bit are 35 // defined. 36 UNDEF_ZEXT, 37 38 // For each undefined input bit, the corresponding output bit 39 // in the same position is undefined. If the MSB of the input value 40 // is undefined, so are all output bits with higher significance 41 // than the MSB input bit. 42 UNDEF_SEXT, 43 44 // For each undefined input bit, the corresponding output bit 45 // and all output bits with higher significance are undefined. 46 UNDEF_LEFT, 47 48 UNDEF_CONCAT, // nHLto2n ops e.g. Iop_32HLto64 49 UNDEF_UPPER, // 2nHIton ops e.g. Iop_64HIto32 50 UNDEF_SHL, // shift-left 51 UNDEF_SHR, // logical shift-right 52 UNDEF_SAR, // arithmetic shift-right 53 UNDEF_OR, // bitwise OR operation 54 UNDEF_AND, // bitwise AND operation 55 56 UNDEF_ORD, // Iop_CmpORD compare 57 58 // For IROps I don't know anything about 59 UNDEF_UNKNOWN 60 } undef_t; 61 62 63 // Everything we want to know about an IROp 64 typedef struct { 65 IROp op; 66 const char *name; 67 undef_t undef_kind; 68 int shift_amount_is_immediate; 69 // Indicate whether IROp can be tested on a particular architecture 70 unsigned s390x : 1; 71 unsigned amd64 : 1; 72 unsigned ppc32 : 1; 73 unsigned ppc64 : 1; 74 unsigned arm : 1; 75 unsigned arm64 : 1; 76 unsigned x86 : 1; 77 unsigned mips32 : 1; 78 unsigned mips64 : 1; 79 unsigned tilegx : 1; 80 } irop_t; 81 82 83 /* The maximum number of input operands */ 84 #define MAX_OPERANDS 4 85 86 /* An operand of an IROp (also used for the result) */ 87 typedef struct { 88 IRType type; 89 vbits_t vbits; 90 value_t value; 91 } opnd_t; 92 93 94 /* Carries the data needed to execute and evaluate a test. I.e. 95 inputs and results (V-bits and actual value). */ 96 typedef struct { 97 opnd_t result; 98 opnd_t opnds[MAX_OPERANDS]; 99 unsigned rounding_mode; 100 } test_data_t; 101 102 103 /* Function prototypes */ 104 irop_t *get_irop(IROp); 105 int is_floating_point_op_with_rounding_mode(IROp); 106 int get_num_operands(IROp); 107 108 void print_opnd(FILE *, const opnd_t *); 109 110 int test_unary_op(const irop_t *, test_data_t *); 111 int test_binary_op(const irop_t *, test_data_t *); 112 int test_ternary_op(const irop_t *, test_data_t *); 113 int test_qernary_op(const irop_t *, test_data_t *); 114 115 void valgrind_vex_init_for_iri(IRICB *); 116 void valgrind_execute_test(const irop_t *, test_data_t *); 117 118 IRICB new_iricb(const irop_t *, test_data_t *); 119 120 void panic(const char *) __attribute__((noreturn)); 121 void complain(const irop_t *, const test_data_t *, vbits_t expected); 122 123 /* Imported from VEX */ 124 unsigned sizeof_irtype(IRType); 125 void typeof_primop(IROp, IRType *t_dst, IRType *t_arg1, IRType *t_arg2, 126 IRType *t_arg3, IRType *t_arg4); 127 128 static __inline__ unsigned bitsof_irtype(IRType type) 129 { 130 return type == Ity_I1 ? 1 : sizeof_irtype(type) * 8; 131 } 132 133 134 /* Exported variables */ 135 extern int verbose; 136 137 #endif // VTEST_H 138
