[Bug target/71281] [7 Regression] ICE on gcc trunk on knl, wsm, ivb and bdw targets (tree-ssa-reassoc)

[anton.mitrokhin at phystech dot edu]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71281

--- Comment #3 from Anton Mitrokhin <anton.mitrokhin at phystech dot edu> ---
Could anyone please take a look on this? 
The big reproducer still triggers ICE as for gcc version 7.0.0 20160601
(experimental) (Revision=237011/svn-rev:237016/).
The small reproducer seems to work