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annotate gcc/testsuite/c-c++-common/Wmultistatement-macros-8.c @ 111:04ced10e8804

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gcc 7
author kono
date Fri, 27 Oct 2017 22:46:09 +0900
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111
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1 /* PR c/80116 */
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2 /* { dg-options "-Wmultistatement-macros" } */
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3 /* { dg-do compile } */
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4
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5 #define SWAP(x, y) \
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6 tmp = x; /* { dg-warning "macro expands to multiple statements" } */ \
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7 x = y; \
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8 y = tmp
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9
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10 #define M1 \
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11 for (i = 0; i < 1; ++i) /* { dg-message "not guarded by this 'for' clause" } */ \
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12 SWAP (x, y) /* { dg-message "in expansion of macro .SWAP." } */
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13
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14 #define M2 \
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15 for (i = 0; i < 1; ++i) \
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16 x++
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17
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18 #define M3 \
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19 for (i = 0; i < 1; ++i) \
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20 x++;;
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21
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22 #define M4 \
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23 for (i = 0; i < 1; ++i) /* { dg-message "not guarded by this 'for' clause" } */ \
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24 L1: \
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25 SWAP (x, y) /* { dg-message "in expansion of macro .SWAP." } */
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26
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27 #define INC \
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28 x++;;
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29
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30 int x, y, tmp;
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31
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32 void
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33 fn0 (void)
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34 {
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35 int i;
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36 for (i = 0; i < 1; ++i) /* { dg-message "not guarded by this 'for' clause" } */
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37 SWAP (x, y); /* { dg-message "in expansion of macro .SWAP." } */
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38
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39 for (i = 0; i < 1; ++i) /* { dg-message "not guarded by this 'for' clause" } */
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40 L:
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41 SWAP (x, y); /* { dg-message "in expansion of macro .SWAP." } */
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42 goto L;
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43 }
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44
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45 void
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46 fn1 (void)
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47 {
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48 int i;
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49 M1; /* { dg-message "in expansion of macro .M1." } */
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50 M2;
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51 M3;
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52 M4; /* { dg-message "in expansion of macro .M4." } */
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53 goto L1;
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54 }
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55
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56 void
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57 fn2 (void)
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58 {
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59 for (int i = 0; i < 1; ++i)
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60 INC
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61
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62 for (int i = 0; i < 1; ++i)
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63 ({ x = 10; x++; });
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64 }