| ; RUN: opt < %s -reassociate -instcombine -S | FileCheck %s | |
| ; Test that we can turn things like A*B + X - A*B -> X. | |
| define i32 @test1(i32 %a, i32 %b, i32 %x) { | |
| ; CHECK-LABEL: test1 | |
| ; CHECK: ret i32 %x | |
| %c = mul i32 %a, %b | |
| %d = add i32 %c, %x | |
| %c1 = mul i32 %a, %b | |
| %f = sub i32 %d, %c1 | |
| ret i32 %f | |
| } | |