SKIP: FAILED

../../src/tint/lang/msl/writer/printer/printer.cc:1257 internal compiler error: S = struct @align(16) {
  f0:i32 @offset(0)
  f1:mat4x3<f32> @offset(16)
}

main_out = struct @align(16) {
  x_GLF_color_1:vec4<f32> @offset(0), @location(0)
}

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

%main_1 = func():void {
  $B2: {
    %x_51:ptr<function, i32, read_write> = var
    %x_12_phi:ptr<function, i32, read_write> = var
    loop [b: $B3] {  # loop_1
      $B3: {  # body
        %x_45:ptr<function, S, read_write> = var
        %x_45_phi:ptr<function, S, read_write> = var
        %x_11_phi:ptr<function, i32, read_write> = var
        store %x_45_phi, S(0i, mat4x3<f32>(vec3<f32>(1.0f, 0.0f, 0.0f), vec3<f32>(0.0f, 1.0f, 0.0f), vec3<f32>(0.0f, 0.0f, 1.0f), vec3<f32>(0.0f)))
        store %x_11_phi, 0i
        loop [b: $B4, c: $B5] {  # loop_2
          $B4: {  # body
            %x_46:ptr<function, S, read_write> = var
            %x_9:ptr<function, i32, read_write> = var
            %11:S = load %x_45_phi
            store %x_45, %11
            %12:i32 = load %x_11_phi
            %x_11:i32 = let %12
            %14:f32 = load_vector_element %gl_FragCoord, 0u
            %x_49:f32 = let %14
            %16:bool = eq %x_49, 0.0f
            %17:i32 = select 2i, 1i, %16
            store %x_51, %17
            %18:i32 = load %x_51
            %19:bool = lt %x_11, %18
            if %19 [t: $B6, f: $B7] {  # if_1
              $B6: {  # true
                exit_if  # if_1
              }
              $B7: {  # false
                exit_loop  # loop_2
              }
            }
            continue  # -> $B5
          }
          $B5: {  # continuing
            store %x_GLF_color, vec4<f32>(1.0f)
            %20:S = load %x_45
            store %x_46, %20
            %21:ptr<function, i32, read_write> = access %x_46, 0u
            %22:ptr<function, i32, read_write> = access %x_45, 0u
            %23:i32 = load %22
            %24:i32 = add %23, 1i
            store %21, %24
            %25:i32 = add %x_11, 1i
            store %x_9, %25
            %26:S = load %x_46
            store %x_45_phi, %26
            %27:i32 = load %x_9
            store %x_11_phi, %27
            next_iteration  # -> $B4
          }
        }
        %28:ptr<function, i32, read_write> = access %x_45, 0u
        %29:i32 = load %28
        %30:bool = lt %29, 1000i
        if %30 [t: $B8] {  # if_2
          $B8: {  # true
            exit_loop  # loop_1
          }
        }
        exit_loop  # loop_1
      }
    }
    store %x_12_phi, 0i
    loop [b: $B9, c: $B10] {  # loop_3
      $B9: {  # body
        %x_6:ptr<function, i32, read_write> = var
        %32:i32 = load %x_12_phi
        %x_12:i32 = let %32
        %34:i32 = load %x_51
        %35:bool = lt %x_12, %34
        if %35 [t: $B11, f: $B12] {  # if_3
          $B11: {  # true
            exit_if  # if_3
          }
          $B12: {  # false
            exit_loop  # loop_3
          }
        }
        continue  # -> $B10
      }
      $B10: {  # continuing
        store %x_GLF_color, vec4<f32>(1.0f, 0.0f, 0.0f, 1.0f)
        %36:i32 = add %x_12, 1i
        store %x_6, %36
        %37:i32 = load %x_6
        store %x_12_phi, %37
        next_iteration  # -> $B9
      }
    }
    ret
  }
}
%tint_symbol = @fragment func(%gl_FragCoord_param:vec4<f32> [@position]):main_out {
  $B13: {
    store %gl_FragCoord, %gl_FragCoord_param
    %40:void = call %main_1
    %41:vec4<f32> = load %x_GLF_color
    %42:main_out = construct %41
    ret %42
  }
}

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.  *
********************************************************************