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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 STUFF \
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11 if (0) x = y
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12
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13 #define STUFF2 \
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14 if (0) x = y; x++
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15
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16 #define STUFF3 \
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17 if (x) /* { dg-message "not guarded by this 'if' clause" } */ \
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18 SWAP(x, y) /* { dg-message "in expansion of macro .SWAP." } */
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19
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20 #define SET(X, Y) \
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21 (X) = (Y)
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22
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23 #define STUFF4 \
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24 if (x) \
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25 SET(x, y); \
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26 SET(x, y)
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27
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28 #define STUFF5 \
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29 { tmp = x; x = y; }
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30
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31 #define STUFF6 \
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32 x++;;
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33
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34 int x, y, tmp;
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35
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36 void
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37 fn1 (void)
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38 {
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39 if (x) /* { dg-message "not guarded by this 'if' clause" } */
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40 SWAP(x, y); /* { dg-message "in expansion of macro .SWAP." } */
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41 }
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42
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43 void
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44 fn2 (void)
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45 {
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46 SWAP(x, y);
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47 }
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48
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49 void
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50 fn3 (void)
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51 {
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52 if (x)
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53 {
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54 SWAP(x, y);
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55 }
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56 }
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57
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58 void
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59 fn4 (void)
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60 {
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61 if (x)
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62 ({ x = 10; x++; });
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63 }
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64
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65 void
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66 fn5 (void)
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67 {
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68 if (x) /* { dg-message "not guarded by this 'if' clause" } */
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69 L1:
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70 SWAP (x, y); /* { dg-message "in expansion of macro .SWAP." } */
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71 goto L1;
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72 }
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73
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74 void
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75 fn6 (void)
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76 {
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77 if (x)
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78 SET (x, y);
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79 SET (tmp, x);
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80 }
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81
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82 void
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83 fn7 (void)
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84 {
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85 STUFF;
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86 }
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87
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88 void
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89 fn8 (void)
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90 {
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91 STUFF2;
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92 }
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93
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94 void
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95 fn9 (void)
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96 {
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97 STUFF3; /* { dg-message "in expansion of macro .STUFF3." } */
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98 }
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99
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100 void
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101 fn10 (void)
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102 {
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103 STUFF4;
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104 }
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105
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106 void
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107 fn11 (void)
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108 {
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109 if (x)
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110 STUFF5;
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111 }
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112
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113 void
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114 fn12 (void)
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115 {
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116 if (x)
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117 STUFF6;
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118 }
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