basic-improvements merge status

[David Edelsohn]

>>>>> Jan Hubicka writes:

>> #ifndef HAVE_SINF
>> float
>> sinf(float x)
>> {
>> return (float) sin(x);
>> }
>> #endif
>> 
>> is being compiled as

Jan> I think we can deal with -fno-builtin-fsin to avoid gcc from being
Jan> active on optimizing this.
Jan> The name sinf is reserved by C90 standard, so this is not valid C.

float
foo (float x)
{
  return (float) sin(x);
}

always should be valid without the user having to specify -fno-builtin, as
your change requires on systems without sinf().  stubs.c could be compiled
with -fno-builtin, but that's just covering up the incorrect assumption in
the transformation.

David