LoweringHelpers.cpp File Reference

#include "clang/CIR/LoweringHelpers.h"
#include "mlir/Dialect/LLVMIR/LLVMDialect.h"
#include "mlir/Dialect/LLVMIR/LLVMTypes.h"
#include "mlir/IR/SymbolTable.h"

Go to the source code of this file.

Functions
static unsigned	getIntOrBoolBitWidth (mlir::Type ty)
mlir::DenseElementsAttr	convertStringAttrToDenseElementsAttr (cir::ConstArrayAttr attr, mlir::Type type)
template<>
mlir::APInt	getZeroInitFromType (mlir::Type ty)
template<>
mlir::APFloat	getZeroInitFromType (mlir::Type ty)
template<typename AttrTy, typename StorageTy>
void	convertToDenseElementsAttrImpl (cir::ConstArrayAttr attr, llvm::SmallVectorImpl< StorageTy > &values, const llvm::SmallVectorImpl< int64_t > &currentDims, int64_t dimIndex, int64_t currentIndex)
template<typename AttrTy, typename StorageTy>
mlir::DenseElementsAttr	convertToDenseElementsAttr (cir::ConstArrayAttr attr, const llvm::SmallVectorImpl< int64_t > &dims, mlir::Type elementType, mlir::Type convertedElementType)
static bool	globalViewMatchesPointerLeaf (cir::GlobalViewAttr gv, mlir::ModuleOp moduleOp, const mlir::TypeConverter *converter)
	Return true when gv can be lowered to a FlatSymbolRefAttr leaf without addrspacecast or bitcast (mirrors CIRAttrToValue::visitCirAttr).
static std::optional< mlir::Attribute >	lowerPointerElementAttr (mlir::Attribute elt, mlir::MLIRContext *ctx, mlir::ModuleOp moduleOp, const mlir::TypeConverter *converter)
	Lower a single pointer-element of a cir.const_array to an LLVM-dialect constant leaf suitable for a bulk llvm.mlir.constant.
static bool	containsPoison (mlir::Attribute attr)
std::optional< mlir::Attribute >	lowerConstArrayAttr (cir::ConstArrayAttr constArr, const mlir::TypeConverter *converter, mlir::ModuleOp moduleOp)
mlir::Value	getConstAPInt (mlir::OpBuilder &bld, mlir::Location loc, mlir::Type typ, const llvm::APInt &val)
mlir::Value	getConst (mlir::OpBuilder &bld, mlir::Location loc, mlir::Type typ, unsigned val)
mlir::Value	createShL (mlir::OpBuilder &bld, mlir::Value lhs, unsigned rhs)
mlir::Value	createAShR (mlir::OpBuilder &bld, mlir::Value lhs, unsigned rhs)
mlir::Value	createAnd (mlir::OpBuilder &bld, mlir::Value lhs, const llvm::APInt &rhs)
mlir::Value	createLShR (mlir::OpBuilder &bld, mlir::Value lhs, unsigned rhs)

Function Documentation

containsPoison()

bool containsPoison ( mlir::Attribute attr )

static

Definition at line 209 of file LoweringHelpers.cpp.

References containsPoison().

Referenced by containsPoison(), and lowerConstArrayAttr().

convertStringAttrToDenseElementsAttr()

mlir::DenseElementsAttr convertStringAttrToDenseElementsAttr	(	cir::ConstArrayAttr	attr,
		mlir::Type	type )

Definition at line 27 of file LoweringHelpers.cpp.

References getIntOrBoolBitWidth().

Referenced by lowerConstArrayAttr().

convertToDenseElementsAttr()

template<typename AttrTy, typename StorageTy>

mlir::DenseElementsAttr convertToDenseElementsAttr	(	cir::ConstArrayAttr	attr,
		const llvm::SmallVectorImpl< int64_t > &	dims,
		mlir::Type	elementType,
		mlir::Type	convertedElementType )

Definition at line 131 of file LoweringHelpers.cpp.

References convertToDenseElementsAttrImpl(), and getZeroInitFromType().

Referenced by lowerConstArrayAttr().

convertToDenseElementsAttrImpl()

template<typename AttrTy, typename StorageTy>

void convertToDenseElementsAttrImpl	(	cir::ConstArrayAttr	attr,
		llvm::SmallVectorImpl< StorageTy > &	values,
		const llvm::SmallVectorImpl< int64_t > &	currentDims,
		int64_t	dimIndex,
		int64_t	currentIndex )

Parameters

attr	the ConstArrayAttr to convert
values	the output parameter, the values array to fill
currentDims	the shpae of tensor we're going to convert to
dimIndex	the current dimension we're processing
currentIndex	the current index in the values array

Definition at line 79 of file LoweringHelpers.cpp.

References convertToDenseElementsAttrImpl().

Referenced by convertToDenseElementsAttr(), and convertToDenseElementsAttrImpl().

createAnd()

mlir::Value createAnd	(	mlir::OpBuilder &	bld,
		mlir::Value	lhs,
		const llvm::APInt &	rhs )

Definition at line 307 of file LoweringHelpers.cpp.

References getConstAPInt().

createAShR()

mlir::Value createAShR	(	mlir::OpBuilder &	bld,
		mlir::Value	lhs,
		unsigned	rhs )

Definition at line 300 of file LoweringHelpers.cpp.

References getConst().

createLShR()

mlir::Value createLShR	(	mlir::OpBuilder &	bld,
		mlir::Value	lhs,
		unsigned	rhs )

Definition at line 313 of file LoweringHelpers.cpp.

References getConst().

createShL()

mlir::Value createShL	(	mlir::OpBuilder &	bld,
		mlir::Value	lhs,
		unsigned	rhs )

Definition at line 293 of file LoweringHelpers.cpp.

References getConst().

getConst()

mlir::Value getConst	(	mlir::OpBuilder &	bld,
		mlir::Location	loc,
		mlir::Type	typ,
		unsigned	val )

Definition at line 288 of file LoweringHelpers.cpp.

Referenced by createAShR(), createLShR(), and createShL().

getConstAPInt()

mlir::Value getConstAPInt	(	mlir::OpBuilder &	bld,
		mlir::Location	loc,
		mlir::Type	typ,
		const llvm::APInt &	val )

Definition at line 283 of file LoweringHelpers.cpp.

Referenced by createAnd().

getIntOrBoolBitWidth()

unsigned getIntOrBoolBitWidth ( mlir::Type ty )

static

Definition at line 18 of file LoweringHelpers.cpp.

Referenced by convertStringAttrToDenseElementsAttr().

getZeroInitFromType() [1/2]

template<>

mlir::APInt getZeroInitFromType

(

mlir::Type

ty

)

Definition at line 53 of file LoweringHelpers.cpp.

getZeroInitFromType() [2/2]

template<>

mlir::APFloat getZeroInitFromType

(

mlir::Type

ty

)

Definition at line 60 of file LoweringHelpers.cpp.

globalViewMatchesPointerLeaf()

bool globalViewMatchesPointerLeaf ( cir::GlobalViewAttr gv, mlir::ModuleOp moduleOp, const mlir::TypeConverter * converter )

static

Return true when gv can be lowered to a FlatSymbolRefAttr leaf without addrspacecast or bitcast (mirrors CIRAttrToValue::visitCirAttr).

Definition at line 148 of file LoweringHelpers.cpp.

Referenced by lowerPointerElementAttr().

lowerConstArrayAttr()

std::optional< mlir::Attribute > lowerConstArrayAttr	(	cir::ConstArrayAttr	constArr,
		const mlir::TypeConverter *	converter,
		mlir::ModuleOp	moduleOp )

Definition at line 224 of file LoweringHelpers.cpp.

References containsPoison(), convertStringAttrToDenseElementsAttr(), convertToDenseElementsAttr(), and lowerPointerElementAttr().

lowerPointerElementAttr()

std::optional< mlir::Attribute > lowerPointerElementAttr ( mlir::Attribute elt, mlir::MLIRContext * ctx, mlir::ModuleOp moduleOp, const mlir::TypeConverter * converter )

static

Lower a single pointer-element of a cir.const_array to an LLVM-dialect constant leaf suitable for a bulk llvm.mlir.constant.

Only handles address-of-global without indices and null pointers; indexed global views must use the per-element llvm.insertvalue fallback.

Definition at line 193 of file LoweringHelpers.cpp.

References globalViewMatchesPointerLeaf().

Referenced by lowerConstArrayAttr().