[Bug target/57896] [4.7/4.8/4.9 Regression] ICE in expand_expr_real_2

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57896

--- Comment #26 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 32181
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=32181&action=edit
gcc49-pr57896.patch

Corresponding 4.9 version, which is somewhat different due to my? changes not
to emit subregs on the lhs when possible.