[Bug middle-end/52640] [4.8 Regression] performance bottleneck: gcc/tree.c;value_member

[jan.smets@alcatel-lucent.com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52640

--- Comment #19 from Jan Smets <jan.smets@alcatel-lucent.com> 2012-12-11 16:55:30 UTC ---
Steven's example only contains 10 000 entries. I need to recompile a symbol
table of 270.000 entries a dozen times each day. (and so do a lot of other
people)
With the 'fix' it still takes 12+ seconds to compile it on a state of the art
machine and then another 4+ seconds to assemble. CLANG2.8 spends 15.5 sec and
CLANG3.1 16.5 sec.

I'm already happy with the work around but I'd really like to see a more
structural solution, whichever that may be.  Thanks