1; RUN: opt < %s -instcombine -S | FileCheck %s
2
3@G16 = internal constant [10 x i16] [i16 35, i16 82, i16 69, i16 81, i16 85,
4                                     i16 73, i16 82, i16 69, i16 68, i16 0]
5@GD = internal constant [6 x double]
6   [double -10.0, double 1.0, double 4.0, double 2.0, double -20.0, double -40.0]
7
8define i1 @test1(i32 %X) {
9  %P = getelementptr inbounds [10 x i16]* @G16, i32 0, i32 %X
10  %Q = load i16* %P
11  %R = icmp eq i16 %Q, 0
12  ret i1 %R
13; CHECK: @test1
14; CHECK-NEXT: %R = icmp eq i32 %X, 9
15; CHECK-NEXT: ret i1 %R
16}
17
18define i1 @test2(i32 %X) {
19  %P = getelementptr inbounds [10 x i16]* @G16, i32 0, i32 %X
20  %Q = load i16* %P
21  %R = icmp slt i16 %Q, 85
22  ret i1 %R
23; CHECK: @test2
24; CHECK-NEXT: %R = icmp ne i32 %X, 4
25; CHECK-NEXT: ret i1 %R
26}
27
28define i1 @test3(i32 %X) {
29  %P = getelementptr inbounds [6 x double]* @GD, i32 0, i32 %X
30  %Q = load double* %P
31  %R = fcmp oeq double %Q, 1.0
32  ret i1 %R
33; CHECK: @test3
34; CHECK-NEXT: %R = icmp eq i32 %X, 1
35; CHECK-NEXT: ret i1 %R
36}
37
38define i1 @test4(i32 %X) {
39  %P = getelementptr inbounds [10 x i16]* @G16, i32 0, i32 %X
40  %Q = load i16* %P
41  %R = icmp sle i16 %Q, 73
42  ret i1 %R
43; CHECK: @test4
44; CHECK-NEXT: lshr i32 933, %X
45; CHECK-NEXT: and i32 {{.*}}, 1
46; CHECK-NEXT: %R = icmp ne i32 {{.*}}, 0
47; CHECK-NEXT: ret i1 %R
48}
49
50define i1 @test5(i32 %X) {
51  %P = getelementptr inbounds [10 x i16]* @G16, i32 0, i32 %X
52  %Q = load i16* %P
53  %R = icmp eq i16 %Q, 69
54  ret i1 %R
55; CHECK: @test5
56; CHECK-NEXT: icmp eq i32 %X, 2
57; CHECK-NEXT: icmp eq i32 %X, 7
58; CHECK-NEXT: %R = or i1
59; CHECK-NEXT: ret i1 %R
60}
61
62define i1 @test6(i32 %X) {
63  %P = getelementptr inbounds [6 x double]* @GD, i32 0, i32 %X
64  %Q = load double* %P
65  %R = fcmp ogt double %Q, 0.0
66  ret i1 %R
67; CHECK: @test6
68; CHECK-NEXT: add i32 %X, -1
69; CHECK-NEXT: %R = icmp ult i32 {{.*}}, 3
70; CHECK-NEXT: ret i1 %R
71}
72
73define i1 @test7(i32 %X) {
74  %P = getelementptr inbounds [6 x double]* @GD, i32 0, i32 %X
75  %Q = load double* %P
76  %R = fcmp olt double %Q, 0.0
77  ret i1 %R
78; CHECK: @test7
79; CHECK-NEXT: add i32 %X, -1
80; CHECK-NEXT: %R = icmp ugt i32 {{.*}}, 2
81; CHECK-NEXT: ret i1 %R
82}
83
84define i1 @test8(i32 %X) {
85  %P = getelementptr inbounds [10 x i16]* @G16, i32 0, i32 %X
86  %Q = load i16* %P
87  %R = and i16 %Q, 3
88  %S = icmp eq i16 %R, 0
89  ret i1 %S
90; CHECK: @test8
91; CHECK-NEXT: add i32 %X, -8
92; CHECK-NEXT: icmp ult i32 {{.*}}, 2
93; CHECK-NEXT: ret i1
94}
95
96@GA = internal constant [4 x { i32, i32 } ] [
97  { i32, i32 } { i32 1, i32 0 },
98  { i32, i32 } { i32 2, i32 1 },
99  { i32, i32 } { i32 3, i32 1 },
100  { i32, i32 } { i32 4, i32 0 }
101]
102
103define i1 @test9(i32 %X) {
104  %P = getelementptr inbounds [4 x { i32, i32 } ]* @GA, i32 0, i32 %X, i32 1
105  %Q = load i32* %P
106  %R = icmp eq i32 %Q, 1
107  ret i1 %R
108; CHECK: @test9
109; CHECK-NEXT: add i32 %X, -1
110; CHECK-NEXT: icmp ult i32 {{.*}}, 2
111; CHECK-NEXT: ret i1
112}
113