basic-improvements merge status

[Jan Hubicka]

> Jan Hubicka <jh@suse.cz> writes:
> 
> | -fno-builtin-sin does the trick.
> 
> The issue isn't about the lack of built-in sin.  It is about lack of
> support (either hardwired or in library) for sin{, f,l}.

libstdc++ does provide these.  All we need is to move them into libgcc
and use -fno-builtin-sin to compile file in question.
What do you see wrong about using the -fno-builtin to compile runtime
support that must be done in a way breaking C90 standard?

Honza
> 
> That is, when applying the transformation, the compiler should know
> about which functions it may freely use without producing a bogus
> result. 
> 
> -- Gaby