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Sync VEX/LICENSE.GPL with top-level COPYING file. We used 3 different addresses for writing to the FSF to receive a copy of the GPL. Replace all different variants with an URL <http://www.gnu.org/licenses/>. The following files might still have some slightly different (L)GPL copyright notice because they were derived from other programs: - files under coregrind/m_demangle which come from libiberty: cplus-dem.c, d-demangle.c, demangle.h, rust-demangle.c, safe-ctype.c and safe-ctype.h - coregrind/m_demangle/dyn-string.[hc] derived from GCC. - coregrind/m_demangle/ansidecl.h derived from glibc. - VEX files for FMA detived from glibc: host_generic_maddf.h and host_generic_maddf.c - files under coregrin/m_debuginfo derived from LZO: lzoconf.h, lzodefs.h, minilzo-inl.c and minilzo.h - files under coregrind/m_gdbserver detived from GDB: gdb/signals.h, inferiors.c, regcache.c, regcache.h, regdef.h, remote-utils.c, server.c, server.h, signals.c, target.c, target.h and utils.c Plus the following test files: - none/tests/ppc32/testVMX.c derived from testVMX. - ppc tests derived from QEMU: jm-insns.c, ppc64_helpers.h and test_isa_3_0.c - tests derived from bzip2 (with embedded GPL text in code): hackedbz2.c, origin5-bz2.c, varinfo6.c - tests detived from glibc: str_tester.c, pth_atfork1.c - test detived from GCC libgomp: tc17_sembar.c - performance tests derived from bzip2 or tinycc (with embedded GPL text in code): bz2.c, test_input_for_tinycc.c and tinycc.c
108 lines
3.2 KiB
C
108 lines
3.2 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) 2012-2017 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, see <http://www.gnu.org/licenses/>.
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The GNU General Public License is contained in the file COPYING.
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*/
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#include <assert.h>
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#include "vtest.h"
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/* Check the result of a ternary operation. */
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static void
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check_result_for_ternary(const irop_t *op, const test_data_t *data)
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{
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const opnd_t *result = &data->result;
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const opnd_t *opnd1 = &data->opnds[0];
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const opnd_t *opnd2 = &data->opnds[1];
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const opnd_t *opnd3 = &data->opnds[2];
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vbits_t expected_vbits;
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/* Only handle those undef-kinds that actually occur. */
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switch (op->undef_kind) {
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case UNDEF_ALL:
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expected_vbits = undefined_vbits(result->vbits.num_bits);
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break;
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case UNDEF_SAME:
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// SAME with respect to the 1-bits in all operands
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expected_vbits = or_vbits(or_vbits(opnd1->vbits, opnd2->vbits),
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opnd3->vbits);
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break;
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case UNDEF_SOME:
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expected_vbits.num_bits = result->vbits.num_bits;
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if ((result->vbits.bits.u128[0] != 0) ||
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(result->vbits.bits.u128[1] != 0)) {
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expected_vbits.bits.u128[0] = result->vbits.bits.u128[0];
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expected_vbits.bits.u128[1] = result->vbits.bits.u128[1];
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} else {
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/* The input had at least one vbit set but the result doesn't have any
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* bit set. Set them all so we will trigger the error on the call
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* to complain().
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*/
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expected_vbits.bits.u128[0] = ~0x0ULL;
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expected_vbits.bits.u128[1] = ~0x0ULL;
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}
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break;
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default:
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panic(__func__);
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}
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if (! equal_vbits(result->vbits, expected_vbits))
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complain(op, data, expected_vbits);
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}
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int
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test_ternary_op(const irop_t *op, test_data_t *data)
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{
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unsigned num_input_bits, i, bitpos;
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opnd_t *opnds = data->opnds;
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int tests_done = 0;
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/* For each operand, set a single bit to undefined and observe how
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that propagates to the output. Do this for all bits in each
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operand. */
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for (i = 0; i < 3; ++i) {
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num_input_bits = bitsof_irtype(opnds[i].type);
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opnds[0].vbits = defined_vbits(bitsof_irtype(opnds[0].type));
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opnds[1].vbits = defined_vbits(bitsof_irtype(opnds[1].type));
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opnds[2].vbits = defined_vbits(bitsof_irtype(opnds[2].type));
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for (bitpos = 0; bitpos < num_input_bits; ++bitpos) {
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opnds[i].vbits = onehot_vbits(bitpos, bitsof_irtype(opnds[i].type));
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valgrind_execute_test(op, data);
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check_result_for_ternary(op, data);
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tests_done++;
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}
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}
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return tests_done;
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}
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