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[Bug tree-optimization/45216] Rotate expressions not recognized at tree level
- From: "kai.extern at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Sun, 3 Oct 2010 08:33:20 +0000
- Subject: [Bug tree-optimization/45216] Rotate expressions not recognized at tree level
- Auto-submitted: auto-generated
- References: <bug-45216-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45216
Kai Henningsen <kai.extern at gmail dot com> changed:
What |Removed |Added
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CC| |kai.extern at gmail dot com
--- Comment #6 from Kai Henningsen <kai.extern at gmail dot com> 2010-10-03 08:33:20 UTC ---
(In reply to comment #5)
> Created attachment 21946 [details]
> Another testcase
>
> Here is another test case. Here on this x86_64-unknown-linux-gnu system, gcc
> recognizes the rotate for 32 and 64 bits, and fails for 16 and 8 bits.
> Constants or not doesn't seem to make a difference.
I should ad that I tested with "gcc-4.4.real (Ubuntu 4.4.3-4ubuntu5) 4.4.3".