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[Bug target/40487] Extra zero extensions produced for ARM.
- 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: 23 Jun 2009 09:50:22 -0000
- Subject: [Bug target/40487] Extra zero extensions produced for ARM.
- References: <bug-40487-17506@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #10 from steven at gcc dot gnu dot org 2009-06-23 09:50 -------
Yes, this bug is indeed not related to bug 39715.
I have also verified that the SEE pass (sign-extend elimination, but also
should handle zero-extend) fails to handle this case. And that pass doesn't
exist anymore on the trunk anyway.
I wonder if we can optimize this in GIMPLE already...
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40487