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[Bug target/68729] ../Xbae/Methods.c:1772:1: ICE: in extract_insn, at recog.c:2343
- From: "dave.anglin at bell dot net" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Tue, 08 Dec 2015 20:00:28 +0000
- Subject: [Bug target/68729] ../Xbae/Methods.c:1772:1: ICE: in extract_insn, at recog.c:2343
- Auto-submitted: auto-generated
- References: <bug-68729-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68729
--- Comment #3 from dave.anglin at bell dot net ---
On 2015-12-08 2:53 PM, law at redhat dot com wrote:
> In the case you're running into, I believe he high portion has to be considered
> "clobbered" as in we won't know its contents. So I think the clause where we
> generate a new SUBREG expression and call alter_subreg is safe. Essentially
> operand1 ought to be a MEM of some kind after that code fragment (as it would
> be if operand1 was a pseudo rather than a paradoxical pseudo).
Okay. I have a fix for the rest although I'm still thinking about some
details.