161 lines
4.7 KiB
C
161 lines
4.7 KiB
C
/* -*- mode: C; c-basic-offset: 3; -*- */
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/*
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This file is part of MemCheck, a heavyweight Valgrind tool for
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detecting memory errors.
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Copyright (C) 2012-2015 Florian Krohm
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307, USA.
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The GNU General Public License is contained in the file COPYING.
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*/
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#ifndef VTEST_H
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#define VTEST_H
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/* Main header file for the V-bit tester */
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#include <stdint.h> // uint64_t
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#include "libvex.h" // IROp
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#include "vbits.h" // vbits_t
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/* How undefinedness propagates from input to output */
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typedef enum {
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// For any undefined input bit, all output bits are defined.
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UNDEF_NONE,
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// For any undefined input bit, all output bits are undefined.
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UNDEF_ALL,
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// For each undefined input bit, the corresponding output bit
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// in the same position is undefined. No other bit is undefined.
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UNDEF_SAME,
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// For each undefined input bit, the corresponding output bit
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// in the same position is undefined. No other bit is undefined.
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// If the corresponding output bit does not exist, the input bit
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// does not cause any output bits to be undefined.
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UNDEF_TRUNC,
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// For each undefined input bit, the corresponding output bit
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// in the same position is undefined. No other bit is undefined.
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// Output bits that do no not have a corresponding input bit are
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// defined.
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UNDEF_ZEXT,
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// For each undefined input bit, the corresponding output bit
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// in the same position is undefined. If the MSB of the input value
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// is undefined, so are all output bits with higher significance
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// than the MSB input bit.
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UNDEF_SEXT,
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// For each undefined input bit, the corresponding output bit
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// and all output bits with higher significance are undefined.
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UNDEF_LEFT,
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UNDEF_CONCAT, // nHLto2n ops e.g. Iop_32HLto64
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UNDEF_UPPER, // 2nHIton ops e.g. Iop_64HIto32
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UNDEF_SHL, // shift-left
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UNDEF_SHR, // logical shift-right
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UNDEF_SAR, // arithmetic shift-right
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UNDEF_OR, // bitwise OR operation
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UNDEF_AND, // bitwise AND operation
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UNDEF_ORD, // Iop_CmpORD compare
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// For IROps I don't know anything about
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UNDEF_UNKNOWN
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} undef_t;
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// Everything we want to know about an IROp
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typedef struct {
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IROp op;
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const char *name;
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undef_t undef_kind;
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int shift_amount_is_immediate;
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// Indicate whether IROp can be tested on a particular architecture
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unsigned s390x : 1;
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unsigned amd64 : 1;
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unsigned ppc32 : 1;
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unsigned ppc64 : 1;
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unsigned arm : 1;
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unsigned arm64 : 1;
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unsigned x86 : 1;
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unsigned mips32 : 1;
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unsigned mips64 : 1;
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unsigned tilegx : 1;
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} irop_t;
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/* The maximum number of input operands */
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#define MAX_OPERANDS 4
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/* An operand of an IROp (also used for the result) */
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typedef struct {
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IRType type;
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vbits_t vbits;
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value_t value;
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} opnd_t;
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/* Carries the data needed to execute and evaluate a test. I.e.
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inputs and results (V-bits and actual value). */
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typedef struct {
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opnd_t result;
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opnd_t opnds[MAX_OPERANDS];
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unsigned rounding_mode;
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} test_data_t;
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/* Function prototypes */
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irop_t *get_irop(IROp);
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int is_floating_point_op_with_rounding_mode(IROp);
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int get_num_operands(IROp);
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void print_opnd(FILE *, const opnd_t *);
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int test_unary_op(const irop_t *, test_data_t *);
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int test_binary_op(const irop_t *, test_data_t *);
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int test_ternary_op(const irop_t *, test_data_t *);
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int test_qernary_op(const irop_t *, test_data_t *);
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void valgrind_vex_init_for_iri(IRICB *);
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void valgrind_execute_test(const irop_t *, test_data_t *);
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IRICB new_iricb(const irop_t *, test_data_t *);
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void panic(const char *) __attribute__((noreturn));
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void complain(const irop_t *, const test_data_t *, vbits_t expected);
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/* Imported from VEX */
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unsigned sizeof_irtype(IRType);
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void typeof_primop(IROp, IRType *t_dst, IRType *t_arg1, IRType *t_arg2,
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IRType *t_arg3, IRType *t_arg4);
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static __inline__ unsigned bitsof_irtype(IRType type)
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{
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return type == Ity_I1 ? 1 : sizeof_irtype(type) * 8;
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}
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/* Exported variables */
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extern int verbose;
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#endif // VTEST_H
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