[Bug target/40735] memory hog compiling big functions with -fPIE

[steven at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40735

--- Comment #19 from Steven Bosscher <steven at gcc dot gnu.org> 2012-08-28 09:34:10 UTC ---
With r190665, compile time is mostly spent in:
 loop doloop             : 130.15 ( 8%) usr
 variable tracking       : 990.72 (60%) usr
 var-tracking dataflow   :  76.34 ( 5%) usr

So this isn't a DF issue in GCC 4.8 at least, but yet another var-tracking
issue (but probably not related to bug 53958, because var-tracking dataflow
time is almost reasonable here).

I'll have a look at the doloop issue, but the var-tracking issue is for Alex.