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Stop the presses! 5 instructions!

    vpor        xmm2, xmm0, 0x80000000
    vpcmpeqd    xmm2, xmm1, xmm2
    vcmpunordps xmm2, xmm2, xmm0
    vminps      xmm0, xmm1, xmm0
    vblendvps   xmm0, xmm0, xmm1, xmm2
yay for superoptimizers


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