#include "mlir/Dialect/Bufferization/Transforms/OneShotModuleBufferize.h"
#include "mlir/Dialect/Bufferization/IR/BufferizableOpInterface.h"
#include "mlir/Dialect/Bufferization/IR/Bufferization.h"
#include "mlir/Dialect/Bufferization/Transforms/Bufferize.h"
#include "mlir/Dialect/Bufferization/Transforms/FuncBufferizableOpInterfaceImpl.h"
#include "mlir/Dialect/Bufferization/Transforms/OneShotAnalysis.h"
#include "mlir/Dialect/Bufferization/Transforms/Transforms.h"
#include "mlir/Dialect/Func/IR/FuncOps.h"
#include "mlir/Dialect/MemRef/IR/MemRef.h"
#include "mlir/IR/Operation.h"

Typedefs
using	FuncCallerMap = DenseMap< func::FuncOp, DenseSet< Operation * > >
	A mapping of FuncOps to their callers. More...

Functions
static FuncAnalysisState &	getOrCreateFuncAnalysisState (OneShotAnalysisState &state)
	Get or create FuncAnalysisState. More...

static func::ReturnOp	getAssumedUniqueReturnOp (func::FuncOp funcOp)
	Return the unique ReturnOp that terminates `funcOp`. More...

static void	removeBufferizationAttributes (BlockArgument bbArg)
	Remove bufferization attributes on FuncOp arguments. More...

static func::FuncOp	getCalledFunction (func::CallOp callOp)
	Return the func::FuncOp called by `callOp`. More...

static void	equivalenceAnalysis (func::FuncOp funcOp, OneShotAnalysisState &state, FuncAnalysisState &funcState)
	Gather equivalence info of CallOps. More...

static LogicalResult	getFuncOpsOrderedByCalls (ModuleOp moduleOp, SmallVectorImpl< func::FuncOp > &orderedFuncOps, FuncCallerMap &callerMap)
	Store all functions of the `moduleOp` in `orderedFuncOps`, sorted by callee-caller order (i.e. More...

static void	foldMemRefCasts (func::FuncOp funcOp)
	Fold return values that are memref casts and update function return types. More...

Typedef Documentation

◆ FuncCallerMap

using FuncCallerMap = DenseMap<func::FuncOp, DenseSet<Operation *> >

A mapping of FuncOps to their callers.

Definition at line 77 of file OneShotModuleBufferize.cpp.

Function Documentation

◆ equivalenceAnalysis()

static void equivalenceAnalysis	(	func::FuncOp	funcOp,
		OneShotAnalysisState &	state,
		FuncAnalysisState &	funcState
	)

static

Gather equivalence info of CallOps.

Note: This only adds new equivalence info if the called function was already analyzed.

Definition at line 252 of file OneShotModuleBufferize.cpp.

References mlir::WalkResult::advance(), mlir::bufferization::func_ext::FuncAnalysisState::equivalentFuncArgs, mlir::bufferization::func_ext::getCalledFunction(), mlir::bufferization::OneShotAnalysisState::isInPlace(), mlir::WalkResult::skip(), and mlir::bufferization::OneShotAnalysisState::unionEquivalenceClasses().

Referenced by mlir::bufferization::analyzeModuleOp().

◆ foldMemRefCasts()

static void foldMemRefCasts ( func::FuncOp funcOp )

static

Fold return values that are memref casts and update function return types.

During FuncOp bufferization, the exact type of the returned memrefs (if any) is not known yet. Therefore, the bufferization uses memref types with the most generic layout map as function return types. After bufferizing the entire function body, a more concise memref type can potentially be used for the return type of the function.

Definition at line 336 of file OneShotModuleBufferize.cpp.

References mlir::get(), and getAssumedUniqueReturnOp().

Referenced by mlir::bufferization::bufferizeModuleOp().

◆ getAssumedUniqueReturnOp()

static func::ReturnOp getAssumedUniqueReturnOp ( func::FuncOp funcOp )

static

Return the unique ReturnOp that terminates funcOp.

Return nullptr if there is no such unique ReturnOp.

Definition at line 90 of file OneShotModuleBufferize.cpp.

Referenced by foldMemRefCasts().

◆ getCalledFunction()

static func::FuncOp getCalledFunction ( func::CallOp callOp )

static

Return the func::FuncOp called by callOp.

Definition at line 240 of file OneShotModuleBufferize.cpp.

References mlir::SymbolTable::lookupNearestSymbolFrom().

◆ getFuncOpsOrderedByCalls()

static LogicalResult getFuncOpsOrderedByCalls	(	ModuleOp	moduleOp,
		SmallVectorImpl< func::FuncOp > &	orderedFuncOps,
		FuncCallerMap &	callerMap
	)

static

Store all functions of the moduleOp in orderedFuncOps, sorted by callee-caller order (i.e.

callees without callers first). Store the map of FuncOp to all its callers in callerMap. Return failure() if a cycle of calls is detected or if we are unable to retrieve the called FuncOp from any func::CallOp.

Definition at line 283 of file OneShotModuleBufferize.cpp.

References mlir::WalkResult::advance().

Referenced by mlir::bufferization::analyzeModuleOp(), and mlir::bufferization::bufferizeModuleOp().