question about -ffast-math implementation

[Mike Izbicki]

Right, but I've never taken a look at the gcc codebase.  Where would I
start looking for the relevant files?  Is there a general introduction
to the codebase anywhere that I should start with?

On Mon, Jun 2, 2014 at 11:20 AM, Ian Lance Taylor <iant@google.com> wrote:
> On Mon, Jun 2, 2014 at 12:18 AM, Mike Izbicki <mike.izbicki@gmail.com> wrote:
>>> Though for the gory details and authoritative answers I suppose you'd
>> have to look into the source code.
>>
>> Where would I find the code for this?
>
> This is the GCC source code.  There isn't one file that implements
> -ffast-math.  -ffast-math expands to a set of other options, and then
> various bits and pieces of code tests whether those options are
> enabled.
>
> Ian