Daniel Berlin wrote:
I'm curious if it was the pre/fre changes. can you try -fno-tree-pre and -fno-tree-fre and see if it slows down again?
Adding -fno-tree-pre slows aermod back to 33.942s. Nice optimization. ;)
BTW: I was looking if this speedup was due to yet uncommitted patch for PR 32457 [1], but fortunatelly, it was not the case. However, it would be nice, if the patch [2] for [1] would be committed to SVN to fix 32bit compilation.
[1]: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32457 [2]: http://gcc.gnu.org/ml/gcc-patches/2007-06/msg01941.html Uros.