On Fri, Sep 4, 2020 at 2:23 AM 易会战 via Gcc <gcc@gcc.gnu.org> wrote: > > I am working a instrumention tool, and need get the location info for a > gimple statement. I use the location structure to get the info, and it can > work when i use -O1. When I use -O2, sometimes the info seems to be lost and > I get line num is zero. anyone can tell me how to get the info?
Not all statements have a location, if you encounter such you need to look at the "surrounding context" to find one.
