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[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
- From: "ubizjak at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Sun, 22 Mar 2015 19:22:45 +0000
- Subject: [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
- Auto-submitted: auto-generated
- References: <bug-60851-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60851
--- Comment #13 from UroÅ 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