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dagcompiler
2013 Nov 22
2
[LLVMdev] DAGCompiler::MergeConsecutiveStores Question
In DAGCombiner::MergeConsecutiveStores, there is this check:
if (Index->getAlignment() != St->getAlignment())
break;
Apparently this check ensures that all of the stores have the same
alignment. Why is that necessary? This seems very overly restrictive
to me.
-David
2013 Nov 22
0
[LLVMdev] DAGCompiler::MergeConsecutiveStores Question
Hi David,
You are right. This check is overly restrictive. We can replace this check with code that uses the alignment of the first store.
Thanks,
Nadav
On Nov 22, 2013, at 9:31 AM, dag at cray.com wrote:
> In DAGCombiner::MergeConsecutiveStores, there is this check:
>
> if (Index->getAlignment() != St->getAlignment())
> break;
>
> Apparently this check