SKIP: FAILED

<dawn>/src/tint/lang/msl/writer/printer/printer.cc:355 internal compiler error: buf0 = struct @align(16) {
  matrix_a_uni:mat4x4<f32> @offset(0)
}

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

%b1 = block {  # root
  %x_8:ptr<uniform, buf0, read> = var @binding_point(0, 0)
  %x_GLF_color:ptr<private, vec4<f32>, read_write> = var
}

%main_1 = func():void -> %b2 {
  %b2 = block {
    %x:ptr<function, i32, read_write> = var
    %matrix_u:ptr<function, vec4<f32>, read_write> = var
    %b:ptr<function, i32, read_write> = var
    %matrix_b:ptr<function, vec4<f32>, read_write> = var
    %x_42:ptr<function, vec4<f32>, read_write> = var
    store %x, 4i
    loop [b: %b3, c: %b4] {  # loop_1
      %b3 = block {  # body
        %9:i32 = load %x
        %10:bool = gte %9, 1i
        if %10 [t: %b5, f: %b6] {  # if_1
          %b5 = block {  # true
            exit_if  # if_1
          }
          %b6 = block {  # false
            exit_loop  # loop_1
          }
        }
        %x_11:i32 = load %x
        store_vector_element %matrix_u, %x_11, 1.0f
        continue %b4
      }
      %b4 = block {  # continuing
        %12:i32 = load %x
        %13:i32 = sub %12, 1i
        store %x, %13
        next_iteration %b3
      }
    }
    store %b, 4i
    loop [b: %b7, c: %b8] {  # loop_2
      %b7 = block {  # body
        %14:ptr<uniform, vec4<f32>, read> = access %x_8, 0u, 0i
        %15:f32 = load_vector_element %14, 0u
        %16:bool = lt %15, -1.0f
        if %16 [t: %b9, f: %b10] {  # if_2
          %b9 = block {  # true
            exit_if  # if_2
          }
          %b10 = block {  # false
            exit_loop  # loop_2
          }
        }
        %x_14:i32 = load %b
        %18:i32 = load %b
        %19:bool = gt %18, 1i
        if %19 [t: %b11, f: %b12] {  # if_3
          %b11 = block {  # true
            %20:vec4<f32> = load %matrix_b
            %21:vec4<f32> = load %matrix_b
            %22:vec4<f32> = min %20, %21
            store %x_42, %22
            exit_if  # if_3
          }
          %b12 = block {  # false
            %23:vec4<f32> = load %matrix_u
            store %x_42, %23
            exit_if  # if_3
          }
        }
        %24:f32 = load_vector_element %x_42, 1u
        store_vector_element %matrix_b, %x_14, %24
        continue %b8
      }
      %b8 = block {  # continuing
        %25:i32 = load %b
        %26:i32 = sub %25, 1i
        store %b, %26
        next_iteration %b7
      }
    }
    store %x_GLF_color, vec4<f32>(1.0f, 0.0f, 0.0f, 1.0f)
    ret
  }
}
%tint_symbol = @fragment func():main_out -> %b13 {
  %b13 = block {
    %28:void = call %main_1
    %29:vec4<f32> = load %x_GLF_color
    %30:main_out = construct %29
    ret %30
  }
}

unhandled variable address space
********************************************************************
*  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.  *
********************************************************************