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Re: Auto-vectorization with gcj

From: Andrew Haley <aph at redhat dot com>
To: Andrew Pinski <pinskia at physics dot uc dot edu>
Cc: gcc mailing list <gcc at gcc dot gnu dot org>, Dietmar Lippold <dietmar dot lippold at informatik dot uni-stuttgart dot de>, java at gcc dot gnu dot org
Date: Mon, 16 May 2005 10:00:58 +0100
Subject: Re: Auto-vectorization with gcj
References: <200505150957.LAA16344@isis.informatik.uni-stuttgart.de><17031.8036.31587.593741@cuddles.pink><1ec01014316a3fe622ff26360d65c76d@physics.uc.edu><44d9c6f16220eb620b2e5d99c122b120@physics.uc.edu>

Andrew Pinski writes:
 > 
 > On May 15, 2005, at 10:33 AM, Andrew Pinski wrote:
 > > The multiple exit comes bounds checking (which VRP does not remove 
 > > still
 > > because we don't pull out a load of the length).
 > >
 > > If we add -fno-bounds-checks, we get:
 > > Test.java:7: note: not vectorized: too many BBs in loop.
 > > Test.java:11: note: not vectorized: too many BBs in loop.
 > > Test.java:6: note: vectorized 0 loops in function.
 > >
 > > And this is because we have a label in the loop (and the tree CFG
 > > does not remove user labels, maybe setting DECL_ARTIFICIAL on the
 > > labels will fix this fully).
 > 
 > After working around that problem,

A patch to do that is pre-approved.

Thanks,
Andrew.

References:
- Auto-vectorization with gcj
  - From: Dietmar Lippold
- Re: Auto-vectorization with gcj
  - From: Andrew Haley
- Re: Auto-vectorization with gcj
  - From: Andrew Pinski
- Re: Auto-vectorization with gcj
  - From: Andrew Pinski

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