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[Bug debug/43290] ICE in dwarf2out_frame_debug_expr
- From: "hjl dot tools at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 9 Mar 2010 22:39:34 -0000
- Subject: [Bug debug/43290] ICE in dwarf2out_frame_debug_expr
- References: <bug-43290-87@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #13 from hjl dot tools at gmail dot com 2010-03-09 22:39 -------
(In reply to comment #9)
> (In reply to comment #8)
> > Created an attachment (id=20044)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=20044&action=view) [edit]
> > gcc44-pr43290-2.patch
> >
> > Another fix. Wonder why that insn is marked as frame related at all, for the
> > drap saving the spill (and restore) generated by
> > ix86_expand_prologue/ix86_expand_epilogue should be the canonical one, after
> > all where the vDRAP was spilled to is something that could be clobbered before
> > the epilogue if vDRAP starts living in the register again, etc.
> >
>
> There may be a reason to do so at the time. If there are no
> regressions in gcc testsuite, it probably is OK not to mark
> drap as frame related.
>
It is for PR 36728.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43290