Miles Bader <mi...@gnu.org> writes: > Robert Dewar <de...@adacore.com> writes: >> The worst thing for me about -O1 is arguments disappearing in the trace >> back, that's really a deal breaker. > > Wasn't Alexandre Oliva's "VTA" work supposed to help this kind of > thing...? Did that ever get merged?
It did get merged. My sense from using it is that before VTA, debugging optimized code would sometimes show the wrong value for a function argument. With VTA, the debugger is much more reliable about reporting that it does not know the value of a function argument. So while this is clearly an incremental improvement, I haven't noticed that gcc and gdb have gotten much better at actually knowing the value. Ian
