1 // RUN: %clang_cc1 -triple x86_64-apple-darwin -std=c++11 -emit-llvm -o - %s | FileCheck %s
3 // Verify while loop is recognized after unroll pragma.
4 void while_test(int *List, int Length) {
5 // CHECK: define {{.*}} @_Z10while_test
10 // CHECK: br label {{.*}}, !llvm.loop ![[LOOP_1:.*]]
16 // Verify do loop is recognized after multi-option pragma clang loop directive.
17 void do_test(int *List, int Length) {
18 // CHECK: define {{.*}} @_Z7do_test
23 // CHECK: br i1 {{.*}}, label {{.*}}, label {{.*}}, !llvm.loop ![[LOOP_2:.*]]
29 // Verify for loop is recognized after unroll pragma.
30 void for_test(int *List, int Length) {
31 // CHECK: define {{.*}} @_Z8for_test
33 for (int i = 0; i < Length; i++) {
34 // CHECK: br label {{.*}}, !llvm.loop ![[LOOP_3:.*]]
39 // Verify c++11 for range loop is recognized after unroll pragma.
40 void for_range_test() {
41 // CHECK: define {{.*}} @_Z14for_range_test
46 // CHECK: br label {{.*}}, !llvm.loop ![[LOOP_4:.*]]
53 // Verify defines are correctly resolved in unroll pragmas.
54 void for_define_test(int *List, int Length, int Value) {
55 // CHECK: define {{.*}} @_Z15for_define_test
56 #pragma unroll(UNROLLCOUNT)
57 for (int i = 0; i < Length; i++) {
58 // CHECK: br label {{.*}}, !llvm.loop ![[LOOP_5:.*]]
63 // Verify metadata is generated when template is used.
65 void for_template_test(A *List, int Length, A Value) {
66 // CHECK: define {{.*}} @_Z13template_test
68 for (int i = 0; i < Length; i++) {
69 // CHECK: br label {{.*}}, !llvm.loop ![[LOOP_6:.*]]
74 // Verify define is resolved correctly when template is used.
76 void for_template_define_test(A *List, int Length, A Value) {
77 // CHECK: define {{.*}} @_Z24for_template_define_test
79 #pragma unroll(UNROLLCOUNT)
80 for (int i = 0; i < Length; i++) {
81 // CHECK: br label {{.*}}, !llvm.loop ![[LOOP_7:.*]]
88 // Use templates defined above. Test verifies metadata is generated correctly.
89 void template_test(double *List, int Length) {
92 for_template_test<double>(List, Length, Value);
93 for_template_define_test<double>(List, Length, Value);
96 // CHECK: ![[LOOP_1]] = distinct !{![[LOOP_1]], ![[UNROLL_ENABLE:.*]]}
97 // CHECK: ![[UNROLL_ENABLE]] = !{!"llvm.loop.unroll.enable"}
98 // CHECK: ![[LOOP_2]] = distinct !{![[LOOP_2:.*]], ![[UNROLL_DISABLE:.*]]}
99 // CHECK: ![[UNROLL_DISABLE]] = !{!"llvm.loop.unroll.disable"}
100 // CHECK: ![[LOOP_3]] = distinct !{![[LOOP_3]], ![[UNROLL_8:.*]]}
101 // CHECK: ![[UNROLL_8]] = !{!"llvm.loop.unroll.count", i32 8}
102 // CHECK: ![[LOOP_4]] = distinct !{![[LOOP_4]], ![[UNROLL_4:.*]]}
103 // CHECK: ![[UNROLL_4]] = !{!"llvm.loop.unroll.count", i32 4}
104 // CHECK: ![[LOOP_5]] = distinct !{![[LOOP_5]], ![[UNROLL_8:.*]]}
105 // CHECK: ![[LOOP_6]] = distinct !{![[LOOP_6]], ![[UNROLL_8:.*]]}
106 // CHECK: ![[LOOP_7]] = distinct !{![[LOOP_7]], ![[UNROLL_8:.*]]}