http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58479
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P1 |P2
Summary|[4.9 Regression] slow |[4.8/4.9 Regression] slow
|var-tracking on |var-tracking on
|x86_64-linux at -O1 (and |x86_64-linux at -O1 (and
|above) with -g, but |above) with -g, but
|checking disabled |checking disabled
--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
BTW, I don't see any significant slowdown from r155360 when this regressed on
compile time (for different reasons).
It has been slow until r187052, with r187053 it returned roughly at previous
speed, then r195015 started emitting the debug stmts and compile time went up
again.
But, if I compare 4.8 branch (--enable-checking=yes,rtl) from r208337 with
current trunk (--enable-checking=yes,rtl), trunk is a few % faster even.
So, IMHO this isn't a P1 regression as it hasn't really regressed recently (and
while during development of 4.8 it has been for certain period fast again, it
hasn't been "fixed" in any released compiler after 4.4.x).
