On Oct 11, 2006, Ian Lance Taylor <[EMAIL PROTECTED]> wrote:
>> int x; int f() { x = 0;
>> while(1); }
>> We get line number notes for code only up to "x = 0;".
> I assume this is only a problem when not optimizing.
The opposite, actually. It's optimization that breaks it.
Of course optimization can change stuff and debug info sometimes is
lost, but in this case we *do* have code for that loop, so we might as
well try to preserve the line number info somehow. We shouldn't drop
it just because we turn annotated-with-line-numbers jumps into
fallthru edges that later have to be re-emitted without line numbers.
> Without looking at the code, the problem looks quite similar to one I
> fixed here:
It is similar, indeed, but this removal takes place in RTL.
Thanks for the pointer,
--
Alexandre Oliva http://www.lsd.ic.unicamp.br/~oliva/
Secretary for FSF Latin America http://www.fsfla.org/
Red Hat Compiler Engineer [EMAIL PROTECTED], gcc.gnu.org}
Free Software Evangelist [EMAIL PROTECTED], gnu.org}
