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150
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1 // RUN: %clang_cc1 -std=c++11 -verify %s
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2
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3 // Note that this puts the expected lines before the directives to work around
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4 // limitations in the -verify mode.
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5
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6 void test(int *List, int Length) {
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7 int i = 0;
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8
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9 #pragma unroll
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10 while (i + 1 < Length) {
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11 List[i] = i;
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12 }
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13
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14 #pragma nounroll
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15 while (i < Length) {
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16 List[i] = i;
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17 }
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18
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19 #pragma unroll 4
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20 while (i - 1 < Length) {
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21 List[i] = i;
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22 }
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23
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24 #pragma unroll(8)
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25 while (i - 2 < Length) {
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26 List[i] = i;
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27 }
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28
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29 /* expected-error {{expected ')'}} */ #pragma unroll(4
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30 /* expected-error {{missing argument; expected an integer value}} */ #pragma unroll()
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31 /* expected-warning {{extra tokens at end of '#pragma unroll'}} */ #pragma unroll 1 2
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32 while (i-6 < Length) {
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33 List[i] = i;
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34 }
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35
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36 /* expected-warning {{extra tokens at end of '#pragma nounroll'}} */ #pragma nounroll 1
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37 while (i-7 < Length) {
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38 List[i] = i;
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39 }
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40
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41 /* expected-error {{expected ')'}} */ #pragma unroll(()
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42 /* expected-error {{expected expression}} */ #pragma unroll -
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43 /* expected-error {{invalid value '0'; must be positive}} */ #pragma unroll(0)
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44 /* expected-error {{invalid value '0'; must be positive}} */ #pragma unroll 0
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45 /* expected-error {{value '3000000000' is too large}} */ #pragma unroll(3000000000)
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46 /* expected-error {{value '3000000000' is too large}} */ #pragma unroll 3000000000
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47 while (i-8 < Length) {
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48 List[i] = i;
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49 }
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50
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51 #pragma unroll
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52 /* expected-error {{expected a for, while, or do-while loop to follow '#pragma unroll'}} */ int j = Length;
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53 #pragma unroll 4
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54 /* expected-error {{expected a for, while, or do-while loop to follow '#pragma unroll'}} */ int k = Length;
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55 #pragma nounroll
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56 /* expected-error {{expected a for, while, or do-while loop to follow '#pragma nounroll'}} */ int l = Length;
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57
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207
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58 switch (i) {
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59 case 1:
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60 #pragma unroll
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61 /* expected-error {{expected a for, while, or do-while loop to follow '#pragma unroll'}} */ [[fallthrough]];
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62 case 2:
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63 for (int i = 0; i < 10; ++i);
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64 break;
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65 }
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66
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150
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67 #pragma unroll 4
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68 /* expected-error {{incompatible directives 'unroll(disable)' and '#pragma unroll(4)'}} */ #pragma clang loop unroll(disable)
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69 while (i-10 < Length) {
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70 List[i] = i;
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71 }
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72
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73 #pragma unroll(4)
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74 /* expected-error {{incompatible directives 'unroll(full)' and '#pragma unroll(4)'}} */ #pragma clang loop unroll(full)
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75 while (i-11 < Length) {
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76 List[i] = i;
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77 }
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78
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79 #pragma unroll(4)
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80 /* expected-error {{incompatible directives 'unroll(enable)' and '#pragma unroll(4)'}} */ #pragma clang loop unroll(enable)
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81 while (i-11 < Length) {
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82 List[i] = i;
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83 }
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84
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85 #pragma unroll(4)
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86 /* expected-error {{incompatible directives '#pragma unroll' and '#pragma unroll(4)'}} */ #pragma unroll
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87 while (i-11 < Length) {
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88 List[i] = i;
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89 }
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90
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91 #pragma clang loop unroll_count(4)
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92 /* expected-error {{incompatible directives '#pragma nounroll' and 'unroll_count(4)'}} */ #pragma nounroll
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93 while (i-12 < Length) {
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94 List[i] = i;
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95 }
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96
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97 #pragma nounroll
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98 /* expected-error {{duplicate directives '#pragma nounroll' and '#pragma nounroll'}} */ #pragma nounroll
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99 while (i-13 < Length) {
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100 List[i] = i;
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101 }
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102
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103 #pragma unroll
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104 /* expected-error {{duplicate directives '#pragma unroll' and '#pragma unroll'}} */ #pragma unroll
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105 while (i-14 < Length) {
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106 List[i] = i;
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107 }
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108
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109 #pragma unroll
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110 /* expected-error {{duplicate directives '#pragma unroll' and 'unroll(full)'}} */ #pragma clang loop unroll(full)
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111 while (i-15 < Length) {
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112 List[i] = i;
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113 }
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114
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115 #pragma unroll 4
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116 /* expected-error {{duplicate directives '#pragma unroll(4)' and '#pragma unroll(4)'}} */ #pragma unroll(4)
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117 while (i-16 < Length) {
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118 List[i] = i;
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119 }
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120
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121 #pragma unroll
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122 /* expected-error {{expected statement}} */ }
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