github.com/afumu/libc@v0.0.6/musl/src/math/x86_64/atan2l.s (about)

     1  .global atan2l
     2  .type atan2l,@function
     3  atan2l:
     4  	fldt 8(%rsp)
     5  	fldt 24(%rsp)
     6  	fpatan
     7  	ret