1; RUN: opt -analyze -scalar-evolution -S < %s | FileCheck %s
2
3define i64 @test1(i32 %a, i32 %b) {
4; CHECK-LABEL: @test1
5  %div = udiv i32 %a, %b
6  %zext = zext i32 %div to i64
7; CHECK: %zext
8; CHECK-NEXT: -->  ((zext i32 %a to i64) /u (zext i32 %b to i64))
9  ret i64 %zext
10}
11
12define i64 @test2(i32 %a, i32 %b) {
13; CHECK-LABEL: @test2
14  %rem = urem i32 %a, %b
15  %zext = zext i32 %rem to i64
16; CHECK: %zext
17; CHECK-NEXT: -->  ((zext i32 %a to i64) + (-1 * (zext i32 %b to i64) * ((zext i32 %a to i64) /u (zext i32 %b to i64))))
18  ret i64 %zext
19}
20
21define i64 @test3(i32 %a, i32 %b) {
22; CHECK-LABEL: @test3
23  %div = udiv i32 %a, %b
24  %mul = mul i32 %div, %b
25  %sub = sub i32 %a, %mul
26  %zext = zext i32 %sub to i64
27; CHECK: %zext
28; CHECK-NEXT: -->  ((zext i32 %a to i64) + (-1 * (zext i32 %b to i64) * ((zext i32 %a to i64) /u (zext i32 %b to i64))))
29  ret i64 %zext
30}
31
32define i64 @test4(i32 %t) {
33; CHECK-LABEL: @test4
34  %a = udiv i32 %t, 2
35  %div = udiv i32 %t, 112
36  %mul = mul i32 %div, 56
37  %sub = sub i32 %a, %mul
38  %zext = zext i32 %sub to i64
39; CHECK: %zext
40; CHECK-NEXT: -->  ((-56 * ((zext i32 %t to i64) /u 112)) + ((zext i32 %t to i64) /u 2))
41  ret i64 %zext
42}
43