On 07/03/2017 09:05 AM, Richard Biener wrote:
On Mon, 3 Jul 2017, Tom de Vries wrote:
Hi,
this patch adds a debug function dotfn and a convenience macro DOTFN similar
to dot-fn in gdbhooks.py.
It can be used to have the compiler:
- dump a control flow graph, or
- pop up a control flow graph window
at specific moments in the compilation flow, for debugging purposes.
Bootstrapped and reg-tested on x86_64.
Used for debugging PR81192.
OK for trunk?
Why's dot-fn not enough? > I'd rather extend stuff in gdbhooks.py than
adding this kind of stuff to gcc itself.
When expressing where and when to dump or pop-up a control flow graph,
sometimes it's easier for me to do that in C than in gdb scripting.
Thanks,
- Tom
