[Bug c/60291] slow compile times for any mode (-O0/-O1/-O2) on large .c source file (30MBs)

[trippels at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60291

--- Comment #7 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
(In reply to Richard Biener from comment #6)
> For reference (in testing)

Looks promising:
Without LTO: 2:27.39  total
With    LTO:   35.485 total (60% faster than clang)

> throwing that to callgrind now (perf sucks - no backtraces :/)

There is "-g" for "perf record" and "-g -G" for "perf report".