xilinx::AIE::ShimTransferSpans Class Reference

Shim endpoint lifetimes, including calls to self-contained runtime sequences. More...

#include "aie/Dialect/AIE/Transforms/AIEShimSharing.h"

Classes
struct	End
	A shim end a runtime sequence transfers through. More...

Public Member Functions
	ShimTransferSpans (DeviceOp device, llvm::function_ref< std::optional< End >(mlir::StringAttr)> endOf)
	endOf maps a symbol a runtime sequence transfers through to the objectFIFO end it belongs to, or nothing when it belongs to none.
	ShimTransferSpans (mlir::ModuleOp module, llvm::function_ref< std::optional< End >(DeviceOp, mlir::StringAttr)> endOf)
bool	apart (mlir::StringAttr a, mlir::StringAttr b) const
	Whether both ends permit sharing, explicitly or by MM2S lifetime analysis.
bool	isUsed (mlir::StringAttr end) const
llvm::SmallVector< llvm::SmallVector< unsigned > >	groups (llvm::ArrayRef< mlir::StringAttr > ends) const
	Splits ends into groups whose members are pairwise apart, each group taking one channel: first fit, ordered by the ends' spans in flight.

Detailed Description

Shim endpoint lifetimes, including calls to self-contained runtime sequences.

MM2S transfers conservatively remain live until their sequence returns.

Definition at line 26 of file AIEShimSharing.h.

Constructor & Destructor Documentation

ShimTransferSpans() [1/2]

xilinx::AIE::ShimTransferSpans::ShimTransferSpans	(	DeviceOp	device,
		llvm::function_ref< std::optional< End >(mlir::StringAttr)>	endOf )

endOf maps a symbol a runtime sequence transfers through to the objectFIFO end it belongs to, or nothing when it belongs to none.

ShimTransferSpans() [2/2]

xilinx::AIE::ShimTransferSpans::ShimTransferSpans	(	mlir::ModuleOp	module,
		llvm::function_ref< std::optional< End >(DeviceOp, mlir::StringAttr)>	endOf )

Member Function Documentation

apart()

bool ShimTransferSpans::apart	(	mlir::StringAttr	a,
		mlir::StringAttr	b ) const

Whether both ends permit sharing, explicitly or by MM2S lifetime analysis.

Definition at line 277 of file AIEShimSharing.cpp.

References isUsed().

Referenced by groups().

groups()

SmallVector< SmallVector< unsigned > > ShimTransferSpans::groups

(

llvm::ArrayRef< mlir::StringAttr >

ends

)

const

Splits ends into groups whose members are pairwise apart, each group taking one channel: first fit, ordered by the ends' spans in flight.

Returns indices into ends.

Definition at line 288 of file AIEShimSharing.cpp.

References apart().

isUsed()

bool ShimTransferSpans::isUsed

(

mlir::StringAttr

end

)

const

Definition at line 273 of file AIEShimSharing.cpp.

Referenced by apart().

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The documentation for this class was generated from the following files:

• include/aie/Dialect/AIE/Transforms/AIEShimSharing.h
• lib/Dialect/AIE/Transforms/AIEShimSharing.cpp