This is the mail archive of the
gcc-bugs@gcc.gnu.org
mailing list for the GCC project.
[Bug target/24265] [4.1 Regression] ICE: in extract_insn, at recog.c:2084 with -O -fgcse -fmove-loop-invariants -mtune=pentiumpro
- From: "steven at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 17 Oct 2005 18:54:09 -0000
- Subject: [Bug target/24265] [4.1 Regression] ICE: in extract_insn, at recog.c:2084 with -O -fgcse -fmove-loop-invariants -mtune=pentiumpro
- References: <bug-24265-8707@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #3 from steven at gcc dot gnu dot org 2005-10-17 18:54 -------
The patch identified in comment #2 has nothing to do with this problem. Pinski
is right in comment #1, loop-invariant.c does not verify that the insns it
moves/inserts are valid. Using emit_move_insn is just one thing it should do.
Another thing is verifying that a reg-reg move exists for expressions moved out
of a loop into a register before the loop. There are a few other issues I
found some time ago, but I don't recall the details.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24265