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; RUN: opt < %s -reassociate -S | FileCheck %s

define i32 @test1(i32 %A) {
; CHECK-LABEL: test1
; CHECK: ret i32 0
  %X = add i32 %A, 1
  %Y = add i32 %A, 1
  %r = sub i32 %X, %Y
  ret i32 %r
}