1 // RUN: %clang_cc1 -std=c++11 -verify %s
2
3 // Note that this puts the expected lines before the directives to work around
4 // limitations in the -verify mode.
5
test(int * List,int Length)6 void test(int *List, int Length) {
7 int i = 0;
8
9 #pragma unroll
10 while (i + 1 < Length) {
11 List[i] = i;
12 }
13
14 #pragma nounroll
15 while (i < Length) {
16 List[i] = i;
17 }
18
19 #pragma unroll 4
20 while (i - 1 < Length) {
21 List[i] = i;
22 }
23
24 #pragma unroll(8)
25 while (i - 2 < Length) {
26 List[i] = i;
27 }
28
29 /* expected-error {{expected ')'}} */ #pragma unroll(4
30 /* expected-error {{missing argument; expected an integer value}} */ #pragma unroll()
31 /* expected-warning {{extra tokens at end of '#pragma unroll'}} */ #pragma unroll 1 2
32 while (i-6 < Length) {
33 List[i] = i;
34 }
35
36 /* expected-warning {{extra tokens at end of '#pragma nounroll'}} */ #pragma nounroll 1
37 while (i-7 < Length) {
38 List[i] = i;
39 }
40
41 /* expected-error {{expected ')'}} */ #pragma unroll(()
42 /* expected-error {{expected expression}} */ #pragma unroll -
43 /* expected-error {{invalid value '0'; must be positive}} */ #pragma unroll(0)
44 /* expected-error {{invalid value '0'; must be positive}} */ #pragma unroll 0
45 /* expected-error {{value '3000000000' is too large}} */ #pragma unroll(3000000000)
46 /* expected-error {{value '3000000000' is too large}} */ #pragma unroll 3000000000
47 while (i-8 < Length) {
48 List[i] = i;
49 }
50
51 #pragma unroll
52 /* expected-error {{expected a for, while, or do-while loop to follow '#pragma unroll'}} */ int j = Length;
53 #pragma unroll 4
54 /* expected-error {{expected a for, while, or do-while loop to follow '#pragma unroll'}} */ int k = Length;
55 #pragma nounroll
56 /* expected-error {{expected a for, while, or do-while loop to follow '#pragma nounroll'}} */ int l = Length;
57
58 switch (i) {
59 case 1:
60 #pragma unroll
61 /* expected-error {{expected a for, while, or do-while loop to follow '#pragma unroll'}} */ [[fallthrough]];
62 case 2:
63 for (int i = 0; i < 10; ++i);
64 break;
65 }
66
67 #pragma unroll 4
68 /* expected-error {{incompatible directives 'unroll(disable)' and '#pragma unroll(4)'}} */ #pragma clang loop unroll(disable)
69 while (i-10 < Length) {
70 List[i] = i;
71 }
72
73 #pragma unroll(4)
74 /* expected-error {{incompatible directives 'unroll(full)' and '#pragma unroll(4)'}} */ #pragma clang loop unroll(full)
75 while (i-11 < Length) {
76 List[i] = i;
77 }
78
79 #pragma unroll(4)
80 /* expected-error {{incompatible directives 'unroll(enable)' and '#pragma unroll(4)'}} */ #pragma clang loop unroll(enable)
81 while (i-11 < Length) {
82 List[i] = i;
83 }
84
85 #pragma unroll(4)
86 /* expected-error {{incompatible directives '#pragma unroll' and '#pragma unroll(4)'}} */ #pragma unroll
87 while (i-11 < Length) {
88 List[i] = i;
89 }
90
91 #pragma clang loop unroll_count(4)
92 /* expected-error {{incompatible directives '#pragma nounroll' and 'unroll_count(4)'}} */ #pragma nounroll
93 while (i-12 < Length) {
94 List[i] = i;
95 }
96
97 #pragma nounroll
98 /* expected-error {{duplicate directives '#pragma nounroll' and '#pragma nounroll'}} */ #pragma nounroll
99 while (i-13 < Length) {
100 List[i] = i;
101 }
102
103 #pragma unroll
104 /* expected-error {{duplicate directives '#pragma unroll' and '#pragma unroll'}} */ #pragma unroll
105 while (i-14 < Length) {
106 List[i] = i;
107 }
108
109 #pragma unroll
110 /* expected-error {{duplicate directives '#pragma unroll' and 'unroll(full)'}} */ #pragma clang loop unroll(full)
111 while (i-15 < Length) {
112 List[i] = i;
113 }
114
115 #pragma unroll 4
116 /* expected-error {{duplicate directives '#pragma unroll(4)' and '#pragma unroll(4)'}} */ #pragma unroll(4)
117 while (i-16 < Length) {
118 List[i] = i;
119 }
120
121 #pragma unroll
122 /* expected-error {{expected statement}} */ }
123