[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 #25 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 32180
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=32180&action=edit
gcc48-pr57896.patch

So like this (4.8 version, untested)?  Uros, can you please double-check it?
The point is, if d->testing_p is true, we should do as few work as possible,
certainly not call any emit_insn or gen_reg_rtx, and as soon as we know we'll
certainly eventually return true, return it.