[Bug rtl-optimization/61094] [4.9/4.10 Regression] -O3 insn Internal compiler error in copyprop_hardreg_forward_1, at regcprop.c:775

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=61094

--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
Created attachment 32768
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=32768&action=edit
partly reduced

I stopped reducing, it's very slow (because compiling the testcase is so slow).
Attached what I have sofar.