http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56888
--- Comment #26 from Richard Biener <rguenth at gcc dot gnu.org> --- (In reply to Janosch Rux from comment #24) > When upgrading our build environment we ran into this. We worked around the > way mentioned in the comments. > > No Problems with: 4.6.3 > Broken with: 4.8.2 -ftree-loop-distribute-patterns is on by default at -O3 since GCC 4.6, a change from GCC 4.5 and before which needed explicit enabling of this. More recent GCC may have become more clever in recognizing them though (for example non-zero memset support is quite recent).
