[Bug rtl-optimization/60851] [4.9 Regression] ICE: in extract_constrain_insn_cached, at recog.c:2117 with -flive-range-shrinkage -mdispatch-scheduler -march=bdver4

[ubizjak at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60851

--- Comment #13 from Uroš Bizjak <ubizjak at gmail dot com> ---
Created attachment 35099
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=35099&action=edit
Proposed patch for 4.9 branch

In 4.9 branch, the check is located in three different places throughout
constrain_operands. There was a big cleanup by Richard Sandiford in this area
[1].

Richard, does the patch looks OK to you?

[1] https://gcc.gnu.org/ml/gcc-patches/2014-06/msg00530.html