[Bug tree-optimization/108500] [11/12 Regression] -O -finline-small-functions results in "internal compiler error: Segmentation fault" on a very large program (700k function calls)

["dhekir at gmail dot com" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108500

--- Comment #17 from dhekir at gmail dot com ---
To be honest, the "real" test case is very similar to the last one I sent: it's
a semi-generated code, with some initialization of the data in the beginning,
and then a lot of statements which perform not necessarily useful operations,
and in the end a few assertions are checked (e.g. that the initialized data was
not tampered with).

So, in reality, I expected GCC to discard most of the program after
optimization and execute it almost instantly. When I encountered the
segmentation fault during compilation, I thought it might also be relevant for
other users, so I submitted the bug.

Now, however, that the issue is mostly a "performance" issue, it's less likely
that other users will encounter such a huge program with "useful" purposes, so
I understand completely if you decide this is just not interesting/useful
enough.

To be honest, I tried compiling the code with other open source C compilers
(Clang, and another not-so-mature one), and one failed with a stack overflow,
and the other didn't complete until 1h30m, so I terminated it.

So, the simple fact that you were able to succesfully compile it with those
options is already very interesting to me and sufficient for my "real" test
case.