Hi Ian, On Tuesday 12 February 2008 21:05, Ian Lance Taylor wrote: > Mark Hampton <mark.hampton@xxxxxxxxxxx> writes: > > I would like to identify dead/redundant code that is being optimized away > > by gcc. Is there a way to have gcc report the line number associated with > > this code ? > > No. The best you could do would be to look at the internal debugging > dumps, e.g., by using -fdump-tree-dce-details. That confirms what I have (not) been able to find on the net. I was not aware of the -fdump-tree-dce-details option, thanks for that. We are planning to look more closely into this. It would seem like a useful feature. I have seen : -gnatwt Activate warnings for tracking of deleted conditional code. This is part of the ada support provided by gnat. We are interested in C/C++. Is there someone in the gcc development team who might be interested in helping a stagaire look at this feature ? Thanks, Mark > > Ian
