libm/arm/e_sqrt.S

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#include <private/bionic_asm.h>
#include <private/libc_events.h>

ENTRY(sqrt)
    vmov.f64    d0, r0, r1
    vsqrt.f64   d0, d0
    vmov.f64    r0, r1, d0
    bx          lr
END(sqrt)