http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57326
Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2013-05-21 Ever confirmed|0 |1 --- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> --- Confirmed. Something for tree-ssa-phiopt.c. PRE likely also computes this but does not transform (for some reason). Ah, it produces the first bit here translating _8 = _7 | _14 doesn't produce the desired result (too complex).