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annotate projects/compiler-rt/test/fuzzer/SimpleCmpTest.cpp @ 181:df311c476dd5

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CreateIdentifierInfo in ParseCbC (not yet worked)
author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Sun, 31 May 2020 12:30:11 +0900
parents f476a9ba4795
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
131
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1 // This file is distributed under the University of Illinois Open Source
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2 // License. See LICENSE.TXT for details.
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3
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4 // Simple test for a fuzzer. The fuzzer must find several narrow ranges.
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5 #include <cstdint>
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6 #include <cstdio>
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7 #include <cstdlib>
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8 #include <cstring>
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9
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10 extern int AllLines[];
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11
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12 bool PrintOnce(int Line) {
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13 if (!AllLines[Line])
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14 fprintf(stderr, "Seen line %d\n", Line);
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15 AllLines[Line] = 1;
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16 return true;
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17 }
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18
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19 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
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20 if (Size != 22) return 0;
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21 uint64_t x = 0;
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22 int64_t y = 0;
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23 int32_t z = 0;
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24 uint16_t a = 0;
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25 memcpy(&x, Data, 8); // 8
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26 memcpy(&y, Data + 8, 8); // 16
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27 memcpy(&z, Data + 16, sizeof(z)); // 20
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28 memcpy(&a, Data + 20, sizeof(a)); // 22
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29 const bool k32bit = sizeof(void*) == 4;
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30
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31 if ((k32bit || x > 1234567890) && PrintOnce(__LINE__) &&
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32 (k32bit || x < 1234567895) && PrintOnce(__LINE__) &&
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33 a == 0x4242 && PrintOnce(__LINE__) &&
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34 (k32bit || y >= 987654321) && PrintOnce(__LINE__) &&
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35 (k32bit || y <= 987654325) && PrintOnce(__LINE__) &&
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36 z < -10000 && PrintOnce(__LINE__) &&
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37 z >= -10005 && PrintOnce(__LINE__) &&
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38 z != -10003 && PrintOnce(__LINE__) &&
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39 true) {
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40 fprintf(stderr, "BINGO; Found the target: size %zd (%zd, %zd, %d, %d), exiting.\n",
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41 Size, x, y, z, a);
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42 exit(1);
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43 }
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44 return 0;
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45 }
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46
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47 int AllLines[__LINE__ + 1]; // Must be the last line.