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annotate clang/test/Preprocessor/expr_liveness.c @ 236:c4bab56944e8 llvm-original

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LLVM 16
author kono
date Wed, 09 Nov 2022 17:45:10 +0900
parents 1d019706d866
children
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150
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1 /* RUN: %clang_cc1 -E %s -DNO_ERRORS -Werror -Wundef
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2 RUN: not %clang_cc1 -E %s
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3 */
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4
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5 #ifdef NO_ERRORS
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6 /* None of these divisions by zero are in live parts of the expression, do not
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7 emit any diagnostics. */
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8
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9 #define MACRO_0 0
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10 #define MACRO_1 1
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11
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12 #if MACRO_0 && 10 / MACRO_0
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13 foo
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14 #endif
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15
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16 #if MACRO_1 || 10 / MACRO_0
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17 bar
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18 #endif
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19
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20 #if 0 ? 124/0 : 42
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21 #endif
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22
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23 // PR2279
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24 #if 0 ? 1/0: 2
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25 #else
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26 #error
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27 #endif
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28
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29 // PR2279
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30 #if 1 ? 2 ? 3 : 4 : 5
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31 #endif
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32
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33 // PR2284
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34 #if 1 ? 0: 1 ? 1/0: 1/0
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35 #endif
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36
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37 #else
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38
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39
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40 /* The 1/0 is live, it should error out. */
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41 #if 0 && 1 ? 4 : 1 / 0
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42 baz
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43 #endif
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44
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45
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46 #endif
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47
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48 // rdar://6505352
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49 // -Wundef should not warn about use of undefined identifier if not live.
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50 #if (!defined(XXX) || XXX > 42)
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51 #endif
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52