; RUN: not llvm-as < %s 2>&1 | FileCheck %s ; CHECK: PHI nodes not grouped at top define i32 @test(i32 %i, i32 %j, i1 %c) { br i1 %c, label %A, label %B A: br label %C B: br label %C C: %a = phi i32 [%i, %A], [%j, %B] %x = add i32 %a, 0 ; Error, PHI's should be grouped! %b = phi i32 [%i, %A], [%j, %B] ret i32 %x }