[Bug bootstrap/52391] [4.7 regression] genattrtab almost 5X slower for m68k than in 4.6 and earlier releases

[mikpe at it dot uu.se]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52391

--- Comment #4 from Mikael Pettersson <mikpe at it dot uu.se> 2012-02-27 
21:40:21 UTC ---
My bisection identified that:
in r178386 genattrtab timings are comparable to gcc-4.6,
in r178387 genattrtab got 8.4 times slower, and
in r178388 genattrtab improved to being "only" 5 times slower than 4.6.