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[Bug rtl-optimization/53652] *andn* isn't used for vectorization
- From: "hp at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Thu, 14 Jun 2012 03:45:59 +0000
- Subject: [Bug rtl-optimization/53652] *andn* isn't used for vectorization
- Auto-submitted: auto-generated
- References: <bug-53652-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53652
Hans-Peter Nilsson <hp at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |hp at gcc dot gnu.org
--- Comment #1 from Hans-Peter Nilsson <hp at gcc dot gnu.org> 2012-06-14 03:45:59 UTC ---
I'd humbly suggest adding a "not"-recognizer anon insn-and-split pattern with a
clear comment "combine needs this as a stepping stone to combine into the
andnot".
BTW, this PR seems target-specific; I don't see it for my vector back-end
(using 4.7.1:ish, has "and" and "not" and "andnot" V4SI).