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