David Majnemer eac58d8f68 [X86] Promote several single precision FP libcalls on Windows ...

A number of libcalls don't exist in any particular lib but are, instead,
defined in math.h as inline functions (even in C mode!).  Don't rely on
their existence when lowering @llvm.{cos,sin,floor,..}.f32, promote them
instead.

N.B. We had logic to handle FREM but were missing out on a number of
others.  This change generalizes the FREM handling.

llvm-svn: 268875

2016-05-08 08:15:50 +00:00

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