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[Bug tree-optimization/36228] redundant runtime check while vectorizing
- From: "spop at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 14 May 2008 03:59:06 -0000
- Subject: [Bug tree-optimization/36228] redundant runtime check while vectorizing
- References: <bug-36228-11721@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #2 from spop at gcc dot gnu dot org 2008-05-14 03:59 -------
Subject: Re: redundant runtime check while vectorizing
How costly would it be if we do as a first data dependence test a call
to operand_equal_p on the array references? That certainly would
avoid lot of computations downstream in the data dependence test, but
would be applied as an initial test to all dependence relations.
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36228