[Bug other/47167] Performance regression in numerical code

[martin@mpa-garching.mpg.de]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47167

--- Comment #7 from Martin Reinecke <martin@mpa-garching.mpg.de> 2011-01-19 14:16:18 UTC ---
OK, I located the problematic commit, at least on the 4.5 branch: it's revision
number 167492 (fix for PR tree-optimization/46806).

Between revisions 167491 and 167492 the CPU time for the testcase2.c jumps from
4.7s to 5.4s.

Do you think that anything can be done about this regression?