1 ; RUN: opt < %s -basicaa -inline -instcombine -reassociate -dse -disable-output
4 @a = common global i32 0, align 4
5 @d = common global i32 0, align 4
7 define i32 @fn2() nounwind uwtable ssp {
9 %0 = load i32, i32* @a, align 4
10 %dec = add nsw i32 %0, -1
11 store i32 %dec, i32* @a, align 4
12 %1 = load i32, i32* @d, align 4
13 %sub = sub nsw i32 %dec, %1
14 store i32 %sub, i32* @d, align 4
15 %2 = load i32, i32* @a, align 4
16 %dec1 = add nsw i32 %2, -1
17 store i32 %dec1, i32* @a, align 4
18 %3 = load i32, i32* @d, align 4
19 %sub2 = sub nsw i32 %dec1, %3
20 store i32 %sub2, i32* @d, align 4
21 %4 = load i32, i32* @a, align 4
22 %dec3 = add nsw i32 %4, -1
23 store i32 %dec3, i32* @a, align 4
24 %5 = load i32, i32* @d, align 4
25 %sub4 = sub nsw i32 %dec3, %5
26 store i32 %sub4, i32* @d, align 4
27 %6 = load i32, i32* @a, align 4
28 %dec5 = add nsw i32 %6, -1
29 store i32 %dec5, i32* @a, align 4
30 %7 = load i32, i32* @d, align 4
31 %sub6 = sub nsw i32 %dec5, %7
32 store i32 %sub6, i32* @d, align 4
33 %8 = load i32, i32* @a, align 4
34 %dec7 = add nsw i32 %8, -1
35 store i32 %dec7, i32* @a, align 4
36 %9 = load i32, i32* @d, align 4
37 %sub8 = sub nsw i32 %dec7, %9
38 store i32 %sub8, i32* @d, align 4
42 define i32 @fn1() nounwind uwtable ssp {
44 %call = call i32 @fn2()