Displaying 4 results from an estimated 4 matches for "connpairs".
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candpairs
2011 Nov 17
2
[LLVMdev] [llvm-commits] [PATCH] BasicBlock Autovectorization Pass
...ch that two pairs are connected iff the second pair
> + // uses the first.
> +
> + // Note that it only matters that both members of the second pair use some
> + // element of the first pair (to allow for splatting).
> +
> + std::multimap<value_pair, value_pair> connPairs;
> + computeConnPairs(candPairs, pairableInsts, connPairs);
> + if (!connPairs.size()) return false;
> +
> + // Build the pairable-instruction dependency map
> + DenseSet<value_pair> pairableInstUsers;
> + buildDepMap(BB, candPairs, pairableInsts, pairableIns...
2011 Nov 21
0
[LLVMdev] [llvm-commits] [PATCH] BasicBlock Autovectorization Pass
...d iff the second pair
> > + // uses the first.
> > +
> > + // Note that it only matters that both members of the second pair use some
> > + // element of the first pair (to allow for splatting).
> > +
> > + std::multimap<value_pair, value_pair> connPairs;
> > + computeConnPairs(candPairs, pairableInsts, connPairs);
> > + if (!connPairs.size()) return false;
> > +
> > + // Build the pairable-instruction dependency map
> > + DenseSet<value_pair> pairableInstUsers;
> > + buildDepMap(BB, candPai...
2011 Nov 16
0
[LLVMdev] [llvm-commits] [PATCH] BasicBlock Autovectorization Pass
Tobias, et al.,
Attached is the my autovectorization pass. I've fixed a bug that appears
when using -bb-vectorize-aligned-only, fixed some 80-col violations,
etc., and at least on x86_64, all test cases pass except for a few; and
all of these failures look like instruction-selection bugs. For example:
MultiSource/Applications/ClamAV - fails to compile shared_sha256.c with
an error: error in
2011 Nov 15
3
[LLVMdev] [llvm-commits] [PATCH] BasicBlock Autovectorization Pass
Tobias,
I've attached the latest version of my autovectorization patch. I was
able to add support for using the ScalarEvolution analysis for
load/store pairing (thanks for your help!). This led to a modest
performance increase and a modest compile-time increase. This version
also has a cutoff as you suggested (although the default value is set
high (4000 instructions between pairs) because