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Author SHA1 Message Date
Siva Chandra Reddy 118c13c691 [libc] Add implementation of few floating point manipulation functions. 
Implementations of copysign[f], frexp[f], logb[f], and modf[f] are added.

Reviewers: asteinhauser

Differential Revision: https://reviews.llvm.org/D81134
 2020-06-11 12:23:11 -07:00
Siva Chandra Reddy 32a22a423c [libc] Consolidate floating point utils into a single utils library. 
A new utils library named 'fputil' is added. This library is used in
math tests and the MPFR wrapper. The math implementations will be
modified to use this library in a later round.

Reviewers: phosek

Differential Revision: https://reviews.llvm.org/D79724
 2020-05-15 11:08:41 -07:00