1 // RUN: %clang_cc1 -triple hexagon -std=c++11 -emit-llvm -o - %s | FileCheck %s
2
pipeline_disabled(int * List,int Length,int Value)3 void pipeline_disabled(int *List, int Length, int Value) {
4 // CHECK-LABEL: define {{.*}} @_Z17pipeline_disabled
5 #pragma clang loop pipeline(disable)
6 for (int i = 0; i < Length; i++) {
7 // CHECK: br label {{.*}}, !llvm.loop ![[LOOP_1:.*]]
8 List[i] = Value;
9 }
10 }
11
pipeline_not_disabled(int * List,int Length,int Value)12 void pipeline_not_disabled(int *List, int Length, int Value) {
13 // CHECK-LABEL: define {{.*}} @_Z21pipeline_not_disabled
14 for (int i = 0; i < Length; i++) {
15 List[i] = Value;
16 }
17 }
18
pipeline_initiation_interval(int * List,int Length,int Value)19 void pipeline_initiation_interval(int *List, int Length, int Value) {
20 // CHECK-LABEL: define {{.*}} @_Z28pipeline_initiation_interval
21 #pragma clang loop pipeline_initiation_interval(10)
22 for (int i = 0; i < Length; i++) {
23 // CHECK: br label {{.*}}, !llvm.loop ![[LOOP_3:.*]]
24 List[i] = Value;
25 }
26 }
27
pipeline_disabled_on_nested_loop(int * List,int Length,int Value)28 void pipeline_disabled_on_nested_loop(int *List, int Length, int Value) {
29 // CHECK-LABEL: define {{.*}} @_Z32pipeline_disabled_on_nested_loop
30 for (int i = 0; i < Length; i++) {
31 #pragma clang loop pipeline(disable)
32 for (int j = 0; j < Length; j++) {
33 // CHECK: br label {{.*}}, !llvm.loop ![[LOOP_4:.*]]
34 List[i * Length + j] = Value;
35 }
36 }
37 }
38
39 // CHECK: ![[LOOP_1]] = distinct !{![[LOOP_1]], ![[PIPELINE_DISABLE:.*]]}
40 // CHECK: ![[PIPELINE_DISABLE]] = !{!"llvm.loop.pipeline.disable", i1 true}
41
42 // CHECK-NOT:llvm.loop.pipeline
43
44 // CHECK: ![[LOOP_3]] = distinct !{![[LOOP_3]], ![[PIPELINE_II_10:.*]]}
45 // CHECK: ![[PIPELINE_II_10]] = !{!"llvm.loop.pipeline.initiationinterval", i32 10}
46
47 // CHECK: ![[LOOP_4]] = distinct !{![[LOOP_4]], ![[PIPELINE_DISABLE]]}
48