[llvm] r213831 - R600: Implement enableClusterLoads()

[Tom Stellard]

On Thu, Jul 24, 2014 at 02:10:17AM -0000, Matt Arsenault wrote:
> Author: arsenm
> Date: Wed Jul 23 21:10:17 2014
> New Revision: 213831
> 
> URL: http://llvm.org/viewvc/llvm-project?rev=213831&view=rev
> Log:
> R600: Implement enableClusterLoads()
> 
> Modified:
>     llvm/trunk/lib/Target/R600/AMDGPUInstrInfo.cpp
>     llvm/trunk/lib/Target/R600/AMDGPUInstrInfo.h
> 
> Modified: llvm/trunk/lib/Target/R600/AMDGPUInstrInfo.cpp
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/R600/AMDGPUInstrInfo.cpp?rev=213831&r1=213830&r2=213831&view=diff
> ==============================================================================
> --- llvm/trunk/lib/Target/R600/AMDGPUInstrInfo.cpp (original)
> +++ llvm/trunk/lib/Target/R600/AMDGPUInstrInfo.cpp Wed Jul 23 21:10:17 2014
> @@ -215,6 +215,10 @@ AMDGPUInstrInfo::getOpcodeAfterMemoryUnf
>    return 0;
>  }
>  
> +bool AMDGPUInstrInfo::enableClusterLoads() const {
> +  return true;
> +}
> +

What is this callback used for?

-Tom

>  bool AMDGPUInstrInfo::shouldScheduleLoadsNear(SDNode *Load1, SDNode *Load2,
>                                               int64_t Offset1, int64_t Offset2,
>                                               unsigned NumLoads) const {
> 
> Modified: llvm/trunk/lib/Target/R600/AMDGPUInstrInfo.h
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/R600/AMDGPUInstrInfo.h?rev=213831&r1=213830&r2=213831&view=diff
> ==============================================================================
> --- llvm/trunk/lib/Target/R600/AMDGPUInstrInfo.h (original)
> +++ llvm/trunk/lib/Target/R600/AMDGPUInstrInfo.h Wed Jul 23 21:10:17 2014
> @@ -120,6 +120,9 @@ public:
>    unsigned getOpcodeAfterMemoryUnfold(unsigned Opc,
>                                 bool UnfoldLoad, bool UnfoldStore,
>                                 unsigned *LoadRegIndex = nullptr) const override;
> +
> +  bool enableClusterLoads() const override;
> +
>    bool shouldScheduleLoadsNear(SDNode *Load1, SDNode *Load2,
>                                 int64_t Offset1, int64_t Offset2,
>                                 unsigned NumLoads) const override;
> 
> 
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