[Bug ipa/65076] [5 Regression] 16% tramp3d-v4.cpp compile time regression

[trippels at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65076

--- Comment #32 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
(In reply to Richard Biener from comment #31)
> No negative effects seen.  Update on the regression?  P3->P1 before
> willfully downgrading later...

It depends on the target machine. On amdfam10 it is still 12%,
on sandybridge it is less than 10%.
But tramp3d-v4.cpp compiled with gcc-5 runs 3.5% faster thanks to -ipa-icf.