1; RUN: opt < %s -reassociate -S | FileCheck %s 2 3define i32 @test1(i32 %A) { 4; CHECK-LABEL: test1 5; CHECK: ret i32 0 6 %X = add i32 %A, 1 7 %Y = add i32 %A, 1 8 %r = sub i32 %X, %Y 9 ret i32 %r 10} 11