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[Bug target/32481] ICE in df_refs_verify, at df-scan.c:4058
- From: "spark at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 25 Jun 2007 23:13:29 -0000
- Subject: [Bug target/32481] ICE in df_refs_verify, at df-scan.c:4058
- References: <bug-32481-3760@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #6 from spark at gcc dot gnu dot org 2007-06-25 23:13 -------
This patch:
diff -r 36792eca786a gcc/combine.c
--- a/gcc/combine.c Sat Jun 23 16:21:43 2007 +0000
+++ b/gcc/combine.c Mon Jun 25 23:10:32 2007 +0000
@@ -2849,6 +2849,7 @@ try_combine (rtx i3, rtx i2, rtx i1, int
PATTERN (i3) = newpat;
adjust_for_new_dest (i3);
+ df_insn_rescan (i3);
}
}
}
at least fixes the immediate problem,
though it's not yet completely clear whether this is the right approach
as I don't know whether the PATTERN (i3) change above
is supposed to be permanent or not.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32481