SKIP: FAILED

../../src/tint/lang/msl/writer/printer/printer.cc:1257 internal compiler error: main_out = struct @align(16) {
  x_GLF_color_1:vec4<f32> @offset(0), @location(0)
}

$B1: {  # root
  %x_GLF_color:ptr<private, vec4<f32>, read_write> = var
}

%main_1 = func():void {
  $B2: {
    %j:ptr<function, i32, read_write> = var
    %a:ptr<function, f32, read_write> = var
    store %j, 0i
    loop [b: $B3, c: $B4] {  # loop_1
      $B3: {  # body
        %5:i32 = load %j
        %x_6:i32 = let %5
        %7:bool = lt %x_6, 2i
        if %7 [t: $B5, f: $B6] {  # if_1
          $B5: {  # true
            exit_if  # if_1
          }
          $B6: {  # false
            exit_loop  # loop_1
          }
        }
        %8:i32 = load %j
        %x_7:i32 = let %8
        %10:bool = lt %x_7, 1i
        if %10 [t: $B7] {  # if_2
          $B7: {  # true
            store %x_GLF_color, vec4<f32>(1.0f, 0.0f, 0.0f, 1.0f)
            exit_if  # if_2
          }
        }
        %11:i32 = load %j
        %x_8:i32 = let %11
        %13:bool = neq %x_8, 3i
        if %13 [t: $B8] {  # if_3
          $B8: {  # true
            %14:i32 = load %j
            %x_9:i32 = let %14
            %16:bool = neq %x_9, 4i
            if %16 [t: $B9] {  # if_4
              $B9: {  # true
                %17:i32 = load %j
                %x_10:i32 = let %17
                %19:bool = eq %x_10, 5i
                if %19 [t: $B10, f: $B11] {  # if_5
                  $B10: {  # true
                    store_vector_element %x_GLF_color, 0u, 4.0f
                    exit_if  # if_5
                  }
                  $B11: {  # false
                    store %a, 4.0f
                    store %x_GLF_color, vec4<f32>(1.0f, 0.0f, 0.0f, 1.0f)
                    exit_if  # if_5
                  }
                }
                exit_if  # if_4
              }
            }
            exit_if  # if_3
          }
        }
        continue  # -> $B4
      }
      $B4: {  # continuing
        %20:i32 = load %j
        %x_11:i32 = let %20
        %22:i32 = add %x_11, 1i
        store %j, %22
        next_iteration  # -> $B3
      }
    }
    ret
  }
}
%tint_symbol = @fragment func():main_out {
  $B12: {
    %24:void = call %main_1
    %25:vec4<f32> = load %x_GLF_color
    %26:main_out = construct %25
    ret %26
  }
}

invalid entry point IO struct uses
********************************************************************
*  The tint shader compiler has encountered an unexpected error.   *
*                                                                  *
*  Please help us fix this issue by submitting a bug report at     *
*  crbug.com/tint with the source program that triggered the bug.  *
********************************************************************