------- Comment #3 from pinskia at gcc dot gnu dot org 2009-10-08 21:49 ------- This appeared between revision 152380 and 152576. The only patch which touched dom during that time was: +2009-10-05 Richard Guenther <rguent...@suse.de> + + PR tree-optimization/23821 + * tree-vrp.c (vrp_finalize): Do not perform copy propagation. + * tree-ssa-dom.c (cprop_operand): Do not propagate copies into + simple IV increments.
But that does not mean it was caused by that patch though. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41634