This is the mail archive of the
gcc-bugs@gcc.gnu.org
mailing list for the GCC project.
[Bug rtl-optimization/63577] [4.8/4.9/5 Regression]: Huge compile time and memory usage with -O and not -fPIC
- From: "segher at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Wed, 28 Jan 2015 02:46:16 +0000
- Subject: [Bug rtl-optimization/63577] [4.8/4.9/5 Regression]: Huge compile time and memory usage with -O and not -fPIC
- Auto-submitted: auto-generated
- References: <bug-63577-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63577
--- Comment #6 from Segher Boessenkool <segher at gcc dot gnu.org> ---
[ I missed your last comment, sorry. ]
Both the log_links and the reg_stat point to insns in the insn stream,
(all of those are either live or never again referred to), so that
might be fine, but you really should make sure you only GC between
try_combine calls, never inside one -- that would be rather disastrous.
Do you want to try this for GCC 5?