http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58100
Tobias Burnus <burnus at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |burnus at gcc dot gnu.org
--- Comment #3 from Tobias Burnus <burnus at gcc dot gnu.org> ---
(In reply to Dominique d'Humieres from comment #1)
> Still present after r201658 (pr56666, after it -Wall is needed).
With that patch, -W(no-)zerotrip permits to toggle the warning, which I think
it sufficient. Everything else requires more analysis (e.g. the "if"'s else
branch is never executed in this case), which I believe is not worthwhile.
Roland: Is the new warning option -W(no-)zerotrip sufficient for you?
(Side remark: there are conflicts with early optimization: For debugging, no
folding/simplification should be done by front-ends. On the other hand, some
simplification is useful - and the ME is too late for it.]
