struct TileInfo

Declaration

struct TileInfo { /* full declaration omitted */ };

Description

A helper struct to create IR loop nests for tiling in IR of the following form: for ColumnLoop.Index = 0..NumColumns for RowLoop.Index = 0..NumRows for KLoop.Index = 0..NumInner

Declared at: llvm/include/llvm/Transforms/Utils/MatrixUtils.h:31

Member Variables

public unsigned int NumRows

Number of rows of the matrix.

public unsigned int NumColumns

Number of columns of the matrix.

public unsigned int NumInner

Number of columns of the first matrix of a multiply / number of rows of the second matrix of a multiply.

public unsigned int TileSize = -1

Number of rows/columns in a tile.

public llvm::TileInfo::MatrixLoop RowLoop

The loop iterating on the rows.

public llvm::TileInfo::MatrixLoop ColumnLoop

The loop iterating on the columns.

public llvm::TileInfo::MatrixLoop KLoop

The loop iterating on k (inner dimension).

Method Overview

• private static llvm::BasicBlock * CreateLoop(llvm::BasicBlock * Preheader, llvm::BasicBlock * Exit, llvm::Value * Bound, llvm::Value * Step, llvm::StringRef Name, llvm::IRBuilderBase & B, llvm::DomTreeUpdater & DTU, llvm::Loop * L, llvm::LoopInfo & LI)
• public llvm::BasicBlock * CreateTiledLoops(llvm::BasicBlock * Start, llvm::BasicBlock * End, llvm::IRBuilderBase & B, llvm::DomTreeUpdater & DTU, llvm::LoopInfo & LI)
• public TileInfo(unsigned int NumRows, unsigned int NumColumns, unsigned int NumInner, unsigned int TileSize)

Methods

¶static llvm::BasicBlock* CreateLoop(
    llvm::BasicBlock* Preheader,
    llvm::BasicBlock* Exit,
    llvm::Value* Bound,
    llvm::Value* Step,
    llvm::StringRef Name,
    llvm::IRBuilderBase& B,
    llvm::DomTreeUpdater& DTU,
    llvm::Loop* L,
    llvm::LoopInfo& LI)

Description

Creates a new loop with header, body and latch blocks that iterates from [0, Bound). Updates \p Preheader to branch to the new header and uses \p Exit as exit block. Adds the new loop blocks to \Land applies dominator tree updates to \p DTU.

Declared at: llvm/include/llvm/Transforms/Utils/MatrixUtils.h:82

Parameters

llvm::BasicBlock* Preheader

llvm::BasicBlock* Exit

llvm::Value* Bound

llvm::Value* Step

llvm::StringRef Name

llvm::IRBuilderBase& B

llvm::DomTreeUpdater& DTU

llvm::Loop* L

llvm::LoopInfo& LI

¶llvm::BasicBlock* CreateTiledLoops(
    llvm::BasicBlock* Start,
    llvm::BasicBlock* End,
    llvm::IRBuilderBase& B,
    llvm::DomTreeUpdater& DTU,
    llvm::LoopInfo& LI)

Description

Creates an IR loop nests for tiling of the form below. Returns the block for the inner loop body and sets {Column,Row,Inner}LoopHeader/Latch fields. for ColumnLoop.Index = 0..NumColumns for RowLoop.Index = 0..NumRows for InnerLoop.Index = 0..NumInner

Declared at: llvm/include/llvm/Transforms/Utils/MatrixUtils.h:73

Parameters

llvm::BasicBlock* Start

llvm::BasicBlock* End

llvm::IRBuilderBase& B

llvm::DomTreeUpdater& DTU

llvm::LoopInfo& LI

¶TileInfo(unsigned int NumRows,
         unsigned int NumColumns,
         unsigned int NumInner,
         unsigned int TileSize)

Declared at: llvm/include/llvm/Transforms/Utils/MatrixUtils.h:61

Parameters

unsigned int NumRows

unsigned int NumColumns

unsigned int NumInner

unsigned int TileSize