Optimized Assembly Code

        .text
        .intel_syntax noprefix
        .def     test;
        .scl    2;
        .type   32;
        .endef
        .globl  test                    # -- Begin function test
        .p2align        4, 0x90
test:                                   # @test
# %bb.0:
        mov     dword ptr [rip + out], 15
        xor     eax, eax
        ret
                                        # -- End function