1 ; RUN: opt -analyze -scalar-evolution -S < %s | FileCheck %s 2 3 define 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 12 define 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 21 define 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 32 define 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
