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[Bug bootstrap/41241] [4.5 regression] bootstrap comparison failure
- From: "jakub at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 4 Sep 2009 16:58:19 -0000
- Subject: [Bug bootstrap/41241] [4.5 regression] bootstrap comparison failure
- References: <bug-41241-226@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #41 from jakub at gcc dot gnu dot org 2009-09-04 16:58 -------
Created an attachment (id=18496)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=18496&action=view)
gcc45-pr41241.patch
Untested fix for the cfgloopmanip.c issue. We have (mem (mem (sp + cst))
in the debug_insn, and we weren't expecting/handling that.
Still, if sp is present in the debug_insn in some unexpected way, the
debug_insn will cause -fcompare-debug differences. I think for DEBUG_INSN_P
we'll need to
queue them into a special list and replace all occurrences of sp with sp + cst.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41241