[llvm] r193572 - SLPVectorizer: Use vector type for vectorized memory operations
Francois Pichet
pichet2000 at gmail.com
Mon Oct 28 19:31:30 PDT 2013
hi
Does that mean the problem I expressed here is now fixed ?
http://lists.cs.uiuc.edu/pipermail/llvmdev/2013-July/064010.html
On Mon, Oct 28, 2013 at 9:33 PM, Arnold Schwaighofer <
aschwaighofer at apple.com> wrote:
> Author: arnolds
> Date: Mon Oct 28 20:33:50 2013
> New Revision: 193572
>
> URL: http://llvm.org/viewvc/llvm-project?rev=193572&view=rev
> Log:
> SLPVectorizer: Use vector type for vectorized memory operations
>
> No test case, because with the current cost model we don't see a
> difference.
> An upcoming ARM memory cost model change will expose and test this bug.
>
> radar://15332579
>
> Modified:
> llvm/trunk/lib/Transforms/Vectorize/SLPVectorizer.cpp
>
> Modified: llvm/trunk/lib/Transforms/Vectorize/SLPVectorizer.cpp
> URL:
> http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Vectorize/SLPVectorizer.cpp?rev=193572&r1=193571&r2=193572&view=diff
>
> ==============================================================================
> --- llvm/trunk/lib/Transforms/Vectorize/SLPVectorizer.cpp (original)
> +++ llvm/trunk/lib/Transforms/Vectorize/SLPVectorizer.cpp Mon Oct 28
> 20:33:50 2013
> @@ -1023,14 +1023,14 @@ int BoUpSLP::getEntryCost(TreeEntry *E)
> // Cost of wide load - cost of scalar loads.
> int ScalarLdCost = VecTy->getNumElements() *
> TTI->getMemoryOpCost(Instruction::Load, ScalarTy, 1, 0);
> - int VecLdCost = TTI->getMemoryOpCost(Instruction::Load, ScalarTy,
> 1, 0);
> + int VecLdCost = TTI->getMemoryOpCost(Instruction::Load, VecTy, 1,
> 0);
> return VecLdCost - ScalarLdCost;
> }
> case Instruction::Store: {
> // We know that we can merge the stores. Calculate the cost.
> int ScalarStCost = VecTy->getNumElements() *
> TTI->getMemoryOpCost(Instruction::Store, ScalarTy, 1, 0);
> - int VecStCost = TTI->getMemoryOpCost(Instruction::Store, ScalarTy,
> 1, 0);
> + int VecStCost = TTI->getMemoryOpCost(Instruction::Store, VecTy, 1,
> 0);
> return VecStCost - ScalarStCost;
> }
> default:
>
>
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