xref: /llvm-project/llvm/test/Bitcode/use-list-order.ll (revision 3cbca2055adb7f0ccedac3a01c5ca799c635a2bf) 
1; RUN: llvm-uselistorder < %s -preserve-bc-use-list-order -num-shuffles=5
2
3@a = global [4 x i1] [i1 0, i1 1, i1 0, i1 1]
4@b = alias i1* getelementptr ([4 x i1]* @a, i64 0, i64 2)
5
6; Check use-list order of constants used by globals.
7@glob1 = global i5 7
8@glob2 = global i5 7
9@glob3 = global i5 7
10
11; Check use-list order between variables and aliases.
12@target = global i3 zeroinitializer
13@alias1 = alias i3* @target
14@alias2 = alias i3* @target
15@alias3 = alias i3* @target
16@var1 = global i3* @target
17@var2 = global i3* @target
18@var3 = global i3* @target
19
20define i64 @f(i64 %f) {
21entry:
22  %sum = add i64 %f, 0
23  ret i64 %sum
24}
25
26define i64 @g(i64 %g) {
27entry:
28  %sum = add i64 %g, 0
29  ret i64 %sum
30}
31
32define i64 @h(i64 %h) {
33entry:
34  %sum = add i64 %h, 0
35  ret i64 %sum
36}
37
38define i64 @i(i64 %i) {
39entry:
40  %sum = add i64 %i, 1
41  ret i64 %sum
42}
43
44define i64 @j(i64 %j) {
45entry:
46  %sum = add i64 %j, 1
47  ret i64 %sum
48}
49
50define i64 @k(i64 %k) {
51entry:
52  %sum = add i64 %k, 1
53  ret i64 %sum
54}
55
56define i64 @l(i64 %l) {
57entry:
58  %sum = add i64 %l, 1
59  ret i64 %sum
60}
61
62define i1 @loadb() {
63entry:
64  %b = load i1* @b
65  ret i1 %b
66}
67
68define i1 @loada() {
69entry:
70  %a = load i1* getelementptr ([4 x i1]* @a, i64 0, i64 2)
71  ret i1 %a
72}
73
74define i32 @f32(i32 %a, i32 %b, i32 %c, i32 %d) {
75entry:
76  br label %first
77
78second:
79  %eh = mul i32 %e, %h
80  %sum = add i32 %eh, %ef
81  br label %exit
82
83exit:
84  %product = phi i32 [%ef, %first], [%sum, %second]
85  ret i32 %product
86
87first:
88  %e = add i32 %a, 7
89  %f = add i32 %b, 7
90  %g = add i32 %c, 8
91  %h = add i32 %d, 8
92  %ef = mul i32 %e, %f
93  %gh = mul i32 %g, %h
94  %gotosecond = icmp slt i32 %gh, -9
95  br i1 %gotosecond, label %second, label %exit
96}
97