x86/float-sse2.lisp:
o Add vop to divide a complex by a real using packed operations. float-tran.lisp: o New transform for /. Take advantage of packed complex multiply and packed division of a complex by a real. o Remove deftransform for dividing a complex double-float by a double-float. These give a moderate speedup for complex double-float divison. Still seems much slower than x87.
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