82 lines
2.4 KiB
C
82 lines
2.4 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 VBITS_H
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#define VBITS_H
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#include <stdint.h>
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#include <stdio.h>
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typedef uint64_t uint128_t[2];
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typedef uint64_t uint256_t[4];
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/* A type to represent V-bits */
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typedef struct {
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unsigned num_bits;
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union {
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uint8_t u8;
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uint16_t u16;
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uint32_t u32;
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uint64_t u64;
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uint128_t u128;
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uint256_t u256;
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} bits;
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} vbits_t;
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/* A type large enough to hold any IRtype'd value. At this point
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we do not expect to test with specific floating point values.
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So we don't need to represent them. */
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typedef union {
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uint8_t u8;
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uint16_t u16;
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uint32_t u32;
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uint64_t u64;
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uint128_t u128;
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uint256_t u256;
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} value_t;
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void print_vbits(FILE *, vbits_t);
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vbits_t undefined_vbits(unsigned num_bits);
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vbits_t defined_vbits(unsigned num_bits);
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int equal_vbits(vbits_t, vbits_t);
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vbits_t truncate_vbits(vbits_t, unsigned num_bits);
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vbits_t left_vbits(vbits_t, unsigned num_bits);
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vbits_t or_vbits(vbits_t, vbits_t);
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vbits_t and_vbits(vbits_t, vbits_t);
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vbits_t concat_vbits(vbits_t, vbits_t);
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vbits_t upper_vbits(vbits_t);
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vbits_t sextend_vbits(vbits_t, unsigned num_bits);
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vbits_t zextend_vbits(vbits_t, unsigned num_bits);
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vbits_t onehot_vbits(unsigned bitno, unsigned num_bits);
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vbits_t shl_vbits(vbits_t, unsigned amount);
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vbits_t shr_vbits(vbits_t, unsigned amount);
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vbits_t sar_vbits(vbits_t, unsigned amount);
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int completely_defined_vbits(vbits_t);
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vbits_t cmpord_vbits(unsigned v1_num_bits, unsigned v2_num_bits);
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#endif // VBITS_H
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