1 // RUN: %clang_cc1 -triple x86_64-apple-darwin -std=c++11 -emit-llvm -o - %s | FileCheck %s
2
test0(int * List,int Length)3 void test0(int *List, int Length) {
4 // CHECK-LABEL: @{{.*}}test0{{.*}}(
5 // CHECK: br label {{.*}}, !llvm.loop ![[LOOP0:.*]]
6
7 #pragma clang loop vectorize(enable)
8 for (int i = 0; i < Length; i++)
9 List[i] = i * 2;
10 }
11
test1(int * List,int Length)12 void test1(int *List, int Length) {
13 // CHECK-LABEL: @{{.*}}test1{{.*}}(
14 // CHECK: br label {{.*}}, !llvm.loop ![[LOOP1:.*]]
15
16 #pragma clang loop vectorize(enable) vectorize_predicate(enable)
17 for (int i = 0; i < Length; i++)
18 List[i] = i * 2;
19 }
20
test2(int * List,int Length)21 void test2(int *List, int Length) {
22 // CHECK-LABEL: @{{.*}}test2{{.*}}(
23 // CHECK: br label {{.*}}, !llvm.loop ![[LOOP2:.*]]
24
25 #pragma clang loop vectorize(enable) vectorize_predicate(disable)
26 for (int i = 0; i < Length; i++)
27 List[i] = i * 2;
28 }
29
30 // vectorize_predicate(enable) implies vectorize(enable)
test3(int * List,int Length)31 void test3(int *List, int Length) {
32 // CHECK-LABEL: @{{.*}}test3{{.*}}(
33 // CHECK: br label {{.*}}, !llvm.loop ![[LOOP3:.*]]
34
35 #pragma clang loop vectorize_predicate(enable)
36 for (int i = 0; i < Length; i++)
37 List[i] = i * 2;
38 }
39
40 // Check that disabling vectorization means a vectorization width of 1, and
41 // also that vectorization_predicate isn't enabled.
test4(int * List,int Length)42 void test4(int *List, int Length) {
43 // CHECK-LABEL: @{{.*}}test4{{.*}}(
44 // CHECK: br label {{.*}}, !llvm.loop ![[LOOP4:.*]]
45
46 #pragma clang loop vectorize(disable)
47 for (int i = 0; i < Length; i++)
48 List[i] = i * 2;
49 }
50
51 // Check that vectorize and vectorize_predicate are disabled.
test5(int * List,int Length)52 void test5(int *List, int Length) {
53 // CHECK-LABEL: @{{.*}}test5{{.*}}(
54 // CHECK: br label {{.*}}, !llvm.loop ![[LOOP5:.*]]
55
56 #pragma clang loop vectorize(disable) vectorize_predicate(enable)
57 for (int i = 0; i < Length; i++)
58 List[i] = i * 2;
59 }
60
61 // Check that vectorize_predicate is ignored when vectorization width is 1
test6(int * List,int Length)62 void test6(int *List, int Length) {
63 // CHECK-LABEL: @{{.*}}test6{{.*}}(
64 // CHECK: br label {{.*}}, !llvm.loop ![[LOOP6:.*]]
65
66 #pragma clang loop vectorize_predicate(disable) vectorize_width(1)
67 for (int i = 0; i < Length; i++)
68 List[i] = i * 2;
69 }
70
71
72 // Check that vectorize_width(!=1) does not affect vectorize_predicate.
test7(int * List,int Length)73 void test7(int *List, int Length) {
74 // CHECK-LABEL: @{{.*}}test7{{.*}}(
75 // CHECK: br label {{.*}}, !llvm.loop ![[LOOP7:.*]]
76
77 #pragma clang loop vectorize_predicate(disable) vectorize_width(4)
78 for (int i = 0; i < Length; i++)
79 List[i] = i * 2;
80 }
81
82
83 // Check that vectorize_predicate is ignored when vectorization width is 1
test8(int * List,int Length)84 void test8(int *List, int Length) {
85 // CHECK-LABEL: @{{.*}}test8{{.*}}(
86 // CHECK: br label {{.*}}, !llvm.loop ![[LOOP8:.*]]
87
88 #pragma clang loop vectorize_predicate(enable) vectorize_width(1)
89 for (int i = 0; i < Length; i++)
90 List[i] = i * 2;
91 }
92
93
94 // Check that vectorize_width(!=1) does not affect vectorize_predicate.
test9(int * List,int Length)95 void test9(int *List, int Length) {
96 // CHECK-LABEL: @{{.*}}test9{{.*}}(
97 // CHECK: br label {{.*}}, !llvm.loop ![[LOOP9:.*]]
98
99 #pragma clang loop vectorize_predicate(enable) vectorize_width(4)
100 for (int i = 0; i < Length; i++)
101 List[i] = i * 2;
102 }
103
104 // CHECK: ![[LOOP0]] = distinct !{![[LOOP0]], [[MP:![0-9]+]], [[GEN3:![0-9]+]]}
105 // CHECK: [[MP]] = !{!"llvm.loop.mustprogress"}
106 // CHECK-NEXT: [[GEN3]] = !{!"llvm.loop.vectorize.enable", i1 true}
107
108 // CHECK-NEXT: ![[LOOP1]] = distinct !{![[LOOP1]], [[MP]], [[GEN6:![0-9]+]], [[GEN3]]}
109 // CHECK-NEXT: [[GEN6]] = !{!"llvm.loop.vectorize.predicate.enable", i1 true}
110
111 // CHECK-NEXT: ![[LOOP2]] = distinct !{![[LOOP2]], [[MP]], [[GEN8:![0-9]+]], [[GEN3]]}
112 // CHECK-NEXT: [[GEN8]] = !{!"llvm.loop.vectorize.predicate.enable", i1 false}
113
114 // CHECK-NEXT: ![[LOOP3]] = distinct !{![[LOOP3]], [[MP]], [[GEN6]], [[GEN3]]}
115
116 // CHECK-NEXT: ![[LOOP4]] = distinct !{![[LOOP4]], [[MP]], [[GEN10:![0-9]+]]}
117 // CHECK-NEXT: [[GEN10]] = !{!"llvm.loop.vectorize.width", i32 1}
118
119 // CHECK-NEXT: ![[LOOP5]] = distinct !{![[LOOP5]], [[MP]], [[GEN6]], [[GEN10]]}
120
121 // CHECK-NEXT: ![[LOOP6]] = distinct !{![[LOOP6]], [[MP]], [[GEN8]], [[GEN10]], [[GEN11:![0-9]+]]}
122 // CHECK-NEXT: [[GEN11]] = !{!"llvm.loop.vectorize.scalable.enable", i1 false}
123
124 // CHECK-NEXT: ![[LOOP7]] = distinct !{![[LOOP7]], [[MP]], [[GEN8]], [[GEN12:![0-9]+]], [[GEN11]], [[GEN3]]}
125 // CHECK-NEXT: [[GEN12]] = !{!"llvm.loop.vectorize.width", i32 4}
126
127 // CHECK-NEXT: ![[LOOP8]] = distinct !{![[LOOP8]], [[MP]], [[GEN6]], [[GEN10]], [[GEN11]]}
128
129 // CHECK-NEXT: ![[LOOP9]] = distinct !{![[LOOP9]], [[MP]], [[GEN6]], [[GEN12]], [[GEN11]], [[GEN3]]}
130