| ; RUN: opt -analyze -enable-new-pm=0 -scalar-evolution -S < %s | FileCheck %s |
| ; RUN: opt -disable-output "-passes=print<scalar-evolution>" -S < %s 2>&1 | FileCheck %s |
| |
| define i64 @test1(i32 %a, i32 %b) { |
| ; CHECK-LABEL: @test1 |
| %div = udiv i32 %a, %b |
| %zext = zext i32 %div to i64 |
| ; CHECK: %zext |
| ; CHECK-NEXT: --> ((zext i32 %a to i64) /u (zext i32 %b to i64)) |
| ret i64 %zext |
| } |
| |
| define i64 @test2(i32 %a, i32 %b) { |
| ; CHECK-LABEL: @test2 |
| %rem = urem i32 %a, %b |
| %zext = zext i32 %rem to i64 |
| ; CHECK: %zext |
| ; CHECK-NEXT: --> ((zext i32 %a to i64) + (-1 * (zext i32 %b to i64) * ((zext i32 %a to i64) /u (zext i32 %b to i64)))) |
| ret i64 %zext |
| } |
| |
| define i64 @test3(i32 %a, i32 %b) { |
| ; CHECK-LABEL: @test3 |
| %div = udiv i32 %a, %b |
| %mul = mul i32 %div, %b |
| %sub = sub i32 %a, %mul |
| %zext = zext i32 %sub to i64 |
| ; CHECK: %zext |
| ; CHECK-NEXT: --> ((zext i32 %a to i64) + (-1 * (zext i32 %b to i64) * ((zext i32 %a to i64) /u (zext i32 %b to i64)))) |
| ret i64 %zext |
| } |
| |
| define i64 @test4(i32 %t) { |
| ; CHECK-LABEL: @test4 |
| %a = udiv i32 %t, 2 |
| %div = udiv i32 %t, 112 |
| %mul = mul i32 %div, 56 |
| %sub = sub i32 %a, %mul |
| %zext = zext i32 %sub to i64 |
| ; CHECK: %zext |
| ; CHECK-NEXT: --> ((-56 * ((zext i32 %t to i64) /u 112))<nsw> + ((zext i32 %t to i64) /u 2)) |
| ret i64 %zext |
| } |