Siva Chandra Reddy bb8f2585c6 [libc] Add implementations of ldexp[f|l].
The rounding behavior of NormalFloat to float format has been changed
to round to nearest. Also, a bug in NormalFloat to subnormal number
conversion has been fixed.

Reviewed By: lntue

Differential Revision: https://reviews.llvm.org/D91591
2020-11-17 15:05:42 -08:00
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