[Bug middle-end/54827] [4.8 Regression] 70% compile time regression building builtin-sched.c from Linux's perf

[markus at trippelsdorf dot de]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54827

--- Comment #2 from Markus Trippelsdorf <markus at trippelsdorf dot de> 2012-10-05 17:54:57 UTC ---
Caused by var-tracking. With-fno-var-tracking everything is fine again:

 % time gcc -fno-var-tracking -w -c -O3 -ggdb3 builtin-sched.i
gcc -fno-var-tracking -w -c -O3 -ggdb3 builtin-sched.i  10.50s user 0.04s
system 99% cpu 10.574 total