#include <TDGen.hh>

Collaboration diagram for TDGenerator::ValueType:

Public Member Functions
	ValueType (int subwWidth, int subwCount, bool isFloat)

	ValueType (const TCEString &vtStr)

	ValueType (const Operand &opnd)

	ValueType (const ValueType &other)

ValueType &	operator= (const ValueType &other)

bool	isSupportedByLLVM () const

int	width () const

int	subwordWidth () const

int	subwordCount () const

bool	isFloat () const

bool	isVector () const

Operand::OperandType	operandType () const

TCEString	valueTypeStr () const

Static Public Member Functions
static TCEString	valueTypeStr (const Operand &operand)

static ValueType	valueType (const TCEString &vtStr)

static ValueType	valueType (const Operand &operand)

static std::vector< ValueType >	vectorTypesOfWidth (int width, bool onlyInts=false)

static std::vector< ValueType >	vectorTypesOfSubwordWidth (int subwordWidth, bool onlyInt=false)

Public Attributes
int	subwWidth_
	Subword width of the value type. More...

int	subwCount_
	Subword count of the value type. More...

bool	isFloat_
	If true, the value type is a floating point type. More...

Static Public Attributes
static const std::set< TCEString >	SUPPORTED_LLVM_VALUE_TYPES
	Contains all supported LLVM value types (<ValueType>). More...

Detailed Description

Represents an LLVM value type to express different value types.

Definition at line 679 of file TDGen.hh.

Constructor & Destructor Documentation

◆ ValueType() [1/4]

ValueType::ValueType	(	int	subwWidth,
		int	subwCount,
		bool	isFloat
	)

Constructor.

Parameters

subwWidth	Subword width.
subwCount	Subword count.
isFloat	True, if is a floating point type.

Definition at line 8628 of file TDGen.cc.

     : subwWidth_(subwWidth), subwCount_(subwCount), isFloat_(isFloat) {
     assert(subwWidth > 0 && "Invalid value type.");
     assert(subwCount > 0 && "Invalid value type.");
 }

References assert.

Referenced by valueType().

◆ ValueType() [2/4]

ValueType::ValueType ( const TCEString & vtStr )

Constructor.

Parameters

vtStr Value type string in LLVM format.

Definition at line 8639 of file TDGen.cc.

                                            {
     ValueType vt = valueType(vtStr);
     this->subwWidth_ = vt.subwWidth_;
     this->subwCount_ = vt.subwCount_;
     this->isFloat_ = vt.isFloat_;
 }

References isFloat_, subwCount_, subwWidth_, and valueType().

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◆ ValueType() [3/4]

ValueType::ValueType ( const Operand & opnd )

Constructor.

Parameters

opnd	Operand to be converted to ValueType.

Definition at line 8651 of file TDGen.cc.

                                         {
     ValueType vt = valueType(opnd);
     this->subwWidth_ = vt.subwWidth_;
     this->subwCount_ = vt.subwCount_;
     this->isFloat_ = vt.isFloat_;
 }

References isFloat_, subwCount_, subwWidth_, and valueType().

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◆ ValueType() [4/4]

ValueType::ValueType ( const ValueType & other )

Copy constructor.

Parameters

other Value to be copied.

Definition at line 8663 of file TDGen.cc.

     : subwWidth_(other.subwWidth_),
       subwCount_(other.subwCount_),
       isFloat_(other.isFloat_) {}

Member Function Documentation

◆ isFloat()

bool ValueType::isFloat ( ) const

Tells whether ValueType is a floating point type or not.

Returns: True, is ValueType is a float type.

Definition at line 8732 of file TDGen.cc.

                          {
     return isFloat_;
 }

References isFloat_.

◆ isSupportedByLLVM()

bool ValueType::isSupportedByLLVM ( ) const

Tells whether ValueType is supported by LLVM or not.

Returns: True, if ValueType is supported by LLVM.

Definition at line 8688 of file TDGen.cc.

                                    {
     if (SUPPORTED_LLVM_VALUE_TYPES.find(valueTypeStr()) !=
         SUPPORTED_LLVM_VALUE_TYPES.end()) {
         return true;
     }
     return false;
 }

References SUPPORTED_LLVM_VALUE_TYPES, and valueTypeStr().

Referenced by TDGen::analyzeMachineVectorRegisterClasses(), TDGen::genTCETargetLoweringSIMD_getSetCCResultVT(), vectorTypesOfSubwordWidth(), and vectorTypesOfWidth().

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◆ isVector()

bool ValueType::isVector ( ) const

Tells whether ValueType is a vector type or not.

Returns: True, is ValueType is a vector type.

Definition at line 8742 of file TDGen.cc.

                           {
     return subwCount_ > 1;
 }

References subwCount_.

◆ operandType()

Operand::OperandType ValueType::operandType ( ) const

Returns the Operand::OperandType of ValueType.

Returns: OperandType of ValueType.

Definition at line 8752 of file TDGen.cc.

                              {
     if (!isFloat_ && subwWidth_ == 1) {
         return Operand::BOOL;
     } else if (isFloat_ && subwWidth_ == 16) {
         return Operand::HALF_FLOAT_WORD;
     } else if (isFloat_ && subwWidth_ == 32) {
         return Operand::FLOAT_WORD;
     } else if (!isFloat_) {
         return Operand::UINT_WORD;
     }
  
     return Operand::UINT_WORD;
 }

References Operand::BOOL, Operand::FLOAT_WORD, Operand::HALF_FLOAT_WORD, isFloat_, subwWidth_, and Operand::UINT_WORD.

Referenced by TDGen::writeOperationDefUsingGivenOperandTypes().

◆ operator=()

ValueType & ValueType::operator= ( const ValueType & other )

Value assignment.

Parameters

other Value to be assigned.

Returns: Reference with the assigned values.

Definition at line 8675 of file TDGen.cc.

                                            {
     this->subwWidth_ = other.subwWidth_;
     this->subwCount_ = other.subwCount_;
     this->isFloat_ = other.isFloat_;
     return *this;
 }

References isFloat_, subwCount_, and subwWidth_.

◆ subwordCount()

int ValueType::subwordCount ( ) const

Returns ValueType's subword count.

Returns: ValueType's subword count.

Definition at line 8722 of file TDGen.cc.

                               {
     return subwCount_;
 }

References subwCount_.

◆ subwordWidth()

int ValueType::subwordWidth ( ) const

Returns ValueType's subword bitwidth.

Returns: ValueType's subword bitwidth.

Definition at line 8712 of file TDGen.cc.

                               {
     return subwWidth_;
 }

References subwWidth_.

Referenced by vectorTypesOfSubwordWidth().

◆ valueType() [1/2]

ValueType ValueType::valueType ( const Operand & operand )

static

Returns given Operand as a value type object.

Parameters

operand Operand to be converted to ValueType.

Returns: ValueType presentation of the Operand.

Definition at line 8853 of file TDGen.cc.

                                            {
     return valueType(valueTypeStr(operand));
 }

References valueType(), and valueTypeStr().

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◆ valueType() [2/2]

ValueType ValueType::valueType ( const TCEString & vtStr )

static

Returns given LLVM value type string (e.g. "v2i32") as ValueType.

Parameters

vtStr LLVM value type string to be converted to ValueType.

Returns: ValueType object of the LLVM value type string.

Definition at line 8817 of file TDGen.cc.

                                            {
     assert(vtStr.size() > 1);
  
     // Check if the value type is a scalar.
     if (vtStr[0] != 'v') {
         int subwWidthStr = Conversion::toInt(vtStr.substr(1));
  
         if (vtStr[0] == TDGen::OT_REG_FP) {
             return ValueType(subwWidthStr, 1, true);
         } else {
             return ValueType(subwWidthStr, 1, false);
         }
     }
  
     // The value type is a vector, find float/integer type ("f"/"i")
     // indicator.
     size_t vtI = vtStr.length() - 1;
     while (vtI > 0 && std::isdigit(vtStr[vtI])) --vtI;
  
     int subwCount = Conversion::toInt(vtStr.substr(1, vtI - 1));
     int subwWidth = Conversion::toInt(vtStr.substr(vtI + 1));
  
     if (vtStr[vtI] == TDGen::OT_REG_FP) {
         return ValueType(subwWidth, subwCount, true);
     } else {
         return ValueType(subwWidth, subwCount, false);
     }
 }

References assert, TDGen::OT_REG_FP, Conversion::toInt(), and ValueType().

Referenced by ValueType(), and valueType().

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◆ valueTypeStr() [1/2]

TCEString ValueType::valueTypeStr ( ) const

Returns ValueType in LLVM value type string format, e.g. "v2i32".

Returns: Value type string in LLVM format.

Definition at line 8772 of file TDGen.cc.

                               {
     const TCEString subwWidthStr = Conversion::toString(subwWidth_);
  
     // Check if the value type is a scalar.
     if (subwCount_ == 1) {
         if (isFloat_) {
             return "f" + subwWidthStr;
         } else {
             return "i" + subwWidthStr;
         }
     }
  
     // The value type is a vector.
     if (isFloat_) {
         return "v" + Conversion::toString(subwCount_) + "f" + subwWidthStr;
     } else {
         return "v" + Conversion::toString(subwCount_) + "i" + subwWidthStr;
     }
 }

References isFloat_, subwCount_, subwWidth_, and Conversion::toString().

Referenced by TDGen::analyzeMachineVectorRegisterClasses(), TDGen::createSelectPatterns(), TDGen::genGeneratedTCEPlugin_getVectorImmediateOpcode(), TDGen::genTCETargetLoweringSIMD_addVectorRegisterClasses(), TDGen::hasRegisterClassSupport(), isSupportedByLLVM(), valueType(), valueTypeStr(), TDGen::writeScalarOperationExploitations(), TDGen::writeScalarToVectorDefs(), TDGen::writeVectorBitwiseOperationDefs(), TDGen::writeVectorImmediateWriteDefs(), TDGen::writeVectorRegisterClasses(), and TDGen::writeVectorRegisterMoveDefs().

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◆ valueTypeStr() [2/2]

TCEString ValueType::valueTypeStr ( const Operand & operand )

static

Returns Operand in LLVM value type string format, e.g. "v2i32".

Parameters

operand Operand that will be transformed to value type string.

Returns: Value type string in LLVM format.

Definition at line 8799 of file TDGen.cc.

                                               {
     if (operand.type() == Operand::FLOAT_WORD ||
         operand.type() == Operand::HALF_FLOAT_WORD) {
         ValueType vt(operand.elementWidth(), operand.elementCount(), true);
         return vt.valueTypeStr();
     } else {
         ValueType vt(operand.elementWidth(), operand.elementCount(), false);
         return vt.valueTypeStr();
     }
 }

References Operand::elementCount(), Operand::elementWidth(), Operand::FLOAT_WORD, Operand::HALF_FLOAT_WORD, Operand::type(), and valueTypeStr().

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◆ vectorTypesOfSubwordWidth()

std::vector< ValueType > ValueType::vectorTypesOfSubwordWidth	(	int	subwordWidth,
		bool	onlyInts = `false`
	)

static

Returns a list of vector value types that match the given subword width.

Currently filters out unsupported LLVM value types.

Parameters

subwordWidth	The subword width of the desired value types.
onlyInts	If true, floating point types are not included to output.

Returns: Value types for given subword width in a container.

Definition at line 8903 of file TDGen.cc.

                                                                     {
     std::vector<ValueType> vts;
  
     int subwCount = 2;
     int subwWidth = subwordWidth;
     int MAX_SUBW_COUNT = SIMD_WORD_WIDTH / BYTE_BITWIDTH;
  
     while (subwWidth * subwCount <= SIMD_WORD_WIDTH &&
            subwCount <= MAX_SUBW_COUNT) {
         ValueType intVt(subwWidth, subwCount, false);
         if (intVt.isSupportedByLLVM()) {
             vts.push_back(intVt);
         }
  
         if (!onlyInts) {
             ValueType floatVt(subwWidth, subwCount, true);
             if (floatVt.isSupportedByLLVM()) {
                 vts.push_back(floatVt);
             }
         }
  
         subwCount *= 2;
     }
  
     return vts;
 }

References BYTE_BITWIDTH, isSupportedByLLVM(), SIMD_WORD_WIDTH, and subwordWidth().

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◆ vectorTypesOfWidth()

std::vector< ValueType > ValueType::vectorTypesOfWidth	(	int	width,
		bool	onlyInts = `false`
	)

static

Returns a list of vector value types that match the given width.

Currently filters out unsupported LLVM value types.

Parameters

width	The width of the desired value types.
onlyInts	If true, floating point types are not included to output.

Returns: Value types for given width in a container.

Definition at line 8867 of file TDGen.cc.

                                                       {
     std::vector<ValueType> vts;
  
     int subwCount = 2;
     int subwWidth = width / subwCount;
  
     while (subwWidth > 0) {
         ValueType intVt(subwWidth, subwCount, false);
         if (intVt.isSupportedByLLVM()) {
             vts.push_back(intVt);
         }
  
         if (!onlyInts) {
             ValueType floatVt(subwWidth, subwCount, true);
             if (floatVt.isSupportedByLLVM()) {
                 vts.push_back(floatVt);
             }
         }
  
         subwWidth /= 2;
         subwCount *= 2;
     }
  
     return vts;
 }

References isSupportedByLLVM(), and width().

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◆ width()

int ValueType::width ( ) const

Returns ValueType's whole bitwidth.

Returns: ValueType's whole bitwidth.

Definition at line 8702 of file TDGen.cc.

                        {
     return subwWidth_ * subwCount_;
 }

References subwCount_, and subwWidth_.

Referenced by TDGen::associateRegistersWithVectorRegisterClasses(), TDGen::createVectorRVDRegNums(), TDGen::genGeneratedTCEPlugin_getVectorImmediateOpcode(), TDGen::genTCERegisterInfo_setReservedVectorRegs(), TDGenerator::RegisterClass::RegisterClass(), vectorTypesOfWidth(), TDGen::writeCallingConv(), TDGen::writeVectorBitConversions(), TDGen::writeVectorImmediateWriteDefs(), TDGen::writeVectorLoadStoreOperationExploitations(), and TDGen::writeVectorRegisterClasses().

Member Data Documentation

◆ isFloat_

bool TDGenerator::ValueType::isFloat_

If true, the value type is a floating point type.

Definition at line 712 of file TDGen.hh.

Referenced by TDGen::analyzeMachineVectorRegisterClasses(), isFloat(), operandType(), operator=(), ValueType(), valueTypeStr(), and TDGen::writeVectorBitwiseOperationDefs().

◆ subwCount_

int TDGenerator::ValueType::subwCount_

Subword count of the value type.

Definition at line 710 of file TDGen.hh.

Referenced by TDGen::analyzeMachineVectorRegisterClasses(), isVector(), operator=(), subwordCount(), ValueType(), valueTypeStr(), width(), TDGen::writeOperationDefUsingGivenOperandTypes(), and TDGen::writeScalarToVectorDefs().

◆ subwWidth_

int TDGenerator::ValueType::subwWidth_

Subword width of the value type.

Definition at line 708 of file TDGen.hh.

Referenced by TDGen::analyzeMachineVectorRegisterClasses(), operandType(), operator=(), subwordWidth(), ValueType(), valueTypeStr(), width(), and TDGen::writeOperationDefUsingGivenOperandTypes().

◆ SUPPORTED_LLVM_VALUE_TYPES

const std::set< TCEString > ValueType::SUPPORTED_LLVM_VALUE_TYPES

static

Initial value:

=
    list_of
    ("v2i1")   ("v4i1")   ("v8i1")   ("v16i1")             
    ("v2i8")   ("v4i8")   ("v8i8")   ("v16i8")  ("v32i8")  
    ("v2i16")  ("v4i16")  ("v8i16")  ("v16i16")            
    ("v1i32")  ("v2i32")  ("v4i32")  ("v8i32")  ("v16i32") 
    ("v2f16")  ("v4f16")  ("v8f16")                        
    ("v2f32")  ("v4f32")  ("v8f32") ("v16f32")             
    ("v32i1")  ("v64i1")                                   
    ("v64i8")                                              
    ("v32i16")                                             
 
    ("v512i1") ("v1024i1") ("v128i8") ("v256i8")
    ("v64i16") ("v128i16") ("v32i32") ("v64i32")
 
    ("v128i1")
    ("v2048i1")
    ("v256i8")

Contains all supported LLVM value types (<ValueType>).

Definition at line 715 of file TDGen.hh.

Referenced by isSupportedByLLVM().

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

Public Member Functions

Static Public Member Functions

Public Attributes

Static Public Attributes

Detailed Description

Constructor & Destructor Documentation

◆ ValueType() [1/4]

◆ ValueType() [2/4]

◆ ValueType() [3/4]

◆ ValueType() [4/4]

Member Function Documentation

◆ isFloat()

◆ isSupportedByLLVM()

◆ isVector()

◆ operandType()

◆ operator=()

◆ subwordCount()

◆ subwordWidth()

◆ valueType() [1/2]

◆ valueType() [2/2]

◆ valueTypeStr() [1/2]

◆ valueTypeStr() [2/2]

◆ vectorTypesOfSubwordWidth()

◆ vectorTypesOfWidth()

◆ width()

Member Data Documentation

◆ isFloat_

◆ subwCount_

◆ subwWidth_

◆ SUPPORTED_LLVM_VALUE_TYPES