[PATCH 3/6] Convert _Complex cosine functions to generated code

[Paul E. Murphy]

On 06/30/2016 05:36 PM, Joseph Myers wrote:
> On Thu, 30 Jun 2016, Paul E. Murphy wrote:
> 
>> +      if (__real__ res == M_LIT (0.0))
> 
> As a general principle for all such changes:
> 
> Macroization makes the code less readable, so should be avoided where not 
> necessary.  In particular, where implicit conversions from integers to 
> floating point will suffice to give the right floating-point value with 
> the right type, use integers, so use integer 0 here, and make similar 
> changes throughout this patch series whenever the floating-point constant 
> has a small value (not -0) representable in int.  (Of course, explicit 
> -0.0 does need to use a floating-point constant, not an integer constant.)

Ok, I'll bite.  It's a trivial change to apply, and does not alter
code generation on the 5 platforms I'm testing with.  C11/TS 18661
guarantee these constants should always be correctly promoted.