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https://github.com/Zenithsiz/ftmemsim-valgrind.git
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0d0e6346db
The tester is located in memcheck/tests/vbit-test.
It needs the following support on the valgrind / VEX side:
(1) a new client request VG_USERREQ__VEX_INIT_FOR_IRI
(2) a new "special instruction" on all architectures inserted via
VALGRIND_VEX_INJECT_IR
(3) VEX changes to detect the special insn and insert IR (ir_inject.c)
The README file in vbit-test has some more information.
See also VEX r2490. Fixes bugzilla #300102.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@12906
58 lines
1.5 KiB
C
58 lines
1.5 KiB
C
/* -*- mode: C; c-basic-offset: 3; -*- */
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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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#endif // VBITS_H
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