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