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[Bug rtl-optimization/51505] [4.5/4.6/4.7 Regression] ICE: in form_sum, at reload.c:5349 with -O --param max-cse-insns=1
- From: "bonzini at gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Tue, 13 Dec 2011 19:34:25 +0000
- Subject: [Bug rtl-optimization/51505] [4.5/4.6/4.7 Regression] ICE: in form_sum, at reload.c:5349 with -O --param max-cse-insns=1
- Auto-submitted: auto-generated
- References: <bug-51505-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51505
--- Comment #4 from Paolo Bonzini <bonzini at gnu dot org> 2011-12-13 19:34:25 UTC ---
No, it should be easy. Just look at the EQ_USES in df_kill_notes and, if one
EQ_USE refers to a dead pseudo, kill the REG_EQUAL or REG_EQUIV note.