MLIR  17.0.0git
mlir::DataLayout Class Reference

The main mechanism for performing data layout queries. More...

#include "mlir/Interfaces/DataLayoutInterfaces.h"

## Public Member Functions

DataLayout ()

DataLayout (DataLayoutOpInterface op)

DataLayout (ModuleOp op)

unsigned getTypeSize (Type t) const
Returns the size of the given type in the current scope. More...

unsigned getTypeSizeInBits (Type t) const
Returns the size in bits of the given type in the current scope. More...

unsigned getTypeABIAlignment (Type t) const
Returns the required alignment of the given type in the current scope. More...

unsigned getTypePreferredAlignment (Type t) const
Returns the preferred of the given type in the current scope. More...

Attribute getAllocaMemorySpace () const
Returns the memory space used for AllocaOps. More...

## Static Public Member Functions

static DataLayout closest (Operation *op)
Returns the layout of the closest parent operation carrying layout info. More...

## Detailed Description

The main mechanism for performing data layout queries.

Instances of this class can be created for an operation implementing DataLayoutOpInterface. Upon construction, a layout spec combining that of the given operation with all its ancestors will be computed and used to handle further requests. For efficiency, results to all requests will be cached in this object. Therefore, if the data layout spec for the scoping operation, or any of the enclosing operations, changes, the cache is no longer valid. The user is responsible creating a new DataLayout object after any spec change. In debug mode, the cache validity is being checked in every request.

Definition at line 145 of file DataLayoutInterfaces.h.

## ◆ DataLayout() [1/3]

 mlir::DataLayout::DataLayout ( )
explicit

Definition at line 358 of file DataLayoutInterfaces.cpp.

## ◆ DataLayout() [2/3]

 mlir::DataLayout::DataLayout ( DataLayoutOpInterface op )
explicit

Definition at line 360 of file DataLayoutInterfaces.cpp.

References checkMissingLayout(), and collectParentLayouts().

## ◆ DataLayout() [3/3]

 mlir::DataLayout::DataLayout ( ModuleOp op )
explicit

Definition at line 369 of file DataLayoutInterfaces.cpp.

References checkMissingLayout(), and collectParentLayouts().

## ◆ closest()

 mlir::DataLayout mlir::DataLayout::closest ( Operation * op )
static

Returns the layout of the closest parent operation carrying layout info.

Definition at line 378 of file DataLayoutInterfaces.cpp.

References mlir::Operation::getParentOp().

Referenced by defaultIsSmallAlloc().

## ◆ getAllocaMemorySpace()

 mlir::Attribute mlir::DataLayout::getAllocaMemorySpace ( ) const

Returns the memory space used for AllocaOps.

Definition at line 473 of file DataLayoutInterfaces.cpp.

References mlir::detail::getDefaultAllocaMemorySpace().

## ◆ getTypeABIAlignment()

 unsigned mlir::DataLayout::getTypeABIAlignment ( Type t ) const

Returns the required alignment of the given type in the current scope.

Definition at line 449 of file DataLayoutInterfaces.cpp.

## ◆ getTypePreferredAlignment()

 unsigned mlir::DataLayout::getTypePreferredAlignment ( Type t ) const

Returns the preferred of the given type in the current scope.

Definition at line 461 of file DataLayoutInterfaces.cpp.

Referenced by mlir::detail::getDefaultPreferredAlignment(), and translateDataLayout().

## ◆ getTypeSize()

 unsigned mlir::DataLayout::getTypeSize ( Type t ) const

Returns the size of the given type in the current scope.

Definition at line 425 of file DataLayoutInterfaces.cpp.

## ◆ getTypeSizeInBits()

 unsigned mlir::DataLayout::getTypeSizeInBits ( Type t ) const

Returns the size in bits of the given type in the current scope.

Definition at line 437 of file DataLayoutInterfaces.cpp.

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