Am 15.09.25 um 22:32 schrieb Mikael Morin:
Le 15/09/2025 à 21:33, Harald Anlauf a écrit :
I've been wondering if there is some strategy to "differentially"
debug the frontend: using a simple testcase, and replacing just
a single token by another one, and see when and how the path
splits and maybe rejoins later.
Maybe you can use code coverage data, but I'm not aware of any ready-
made diff tool for it. gcov can produce json data with the --json-
format argument, that can be a good starting point.
I have no idea how to use that.
What I meant: the modified token may show up e.g. in a variable decl,
and when it is passed to some function in trans*.cc, that tiny
difference evolves etc.
I just get overwhelmed by all the forest I usually end up with,
and hardly see the tiny little twig that counts.
