SIModeRegisterDefaults.cpp File Reference

#include "SIModeRegisterDefaults.h"
#include "GCNSubtarget.h"

Go to the source code of this file.

Functions
static constexpr uint32_t	getModeRegisterRoundMode (uint32_t HWFP32Val, uint32_t HWFP64Val)
	Combine f32 and f64 rounding modes into a combined rounding mode value.
static constexpr uint64_t	encodeFltRoundsTable (uint32_t FltRoundsVal, uint32_t HWF32Val, uint32_t HWF64Val)
static constexpr uint64_t	encodeFltRoundsTableSame (AMDGPUFltRounds FltRoundsMode, uint32_t HWVal)
static constexpr AMDGPUFltRounds	decodeIndexFltRoundConversionTable (uint32_t HWMode)
static constexpr uint64_t	encodeFltRoundsToHWTableSame (uint32_t HWVal, uint32_t FltRoundsVal)
static constexpr uint64_t	encodeFltRoundsToHWTable (uint32_t HWF32Val, uint32_t HWF64Val, uint32_t FltRoundsVal)
	Decode FLT_ROUNDS into the hardware value where the two rounding modes different and use an extended value.
static constexpr uint32_t	decodeFltRoundToHWConversionTable (uint64_t FltRoundToHWConversionTable, uint32_t FltRounds)
	Read the hardware rounding mode equivalent of a AMDGPUFltRounds value.
static constexpr uint32_t	decodeFltRoundToHW (uint32_t FltRounds)

Variables
static constexpr uint32_t	HWTowardZero = FP_ROUND_ROUND_TO_ZERO
static constexpr uint32_t	HWNearestTiesToEven = FP_ROUND_ROUND_TO_NEAREST
static constexpr uint32_t	HWTowardPositive = FP_ROUND_ROUND_TO_INF
static constexpr uint32_t	HWTowardNegative = FP_ROUND_ROUND_TO_NEGINF

Function Documentation

decodeFltRoundToHW()

static constexpr uint32_t decodeFltRoundToHW ( uint32_t  FltRounds )

staticconstexpr

Definition at line 252 of file SIModeRegisterDefaults.cpp.

References llvm::AMDGPU::FltRoundToHWConversionTable.

decodeFltRoundToHWConversionTable()

static constexpr uint32_t decodeFltRoundToHWConversionTable ( uint64_t  FltRoundToHWConversionTable, uint32_t  FltRounds  )

staticconstexpr

Read the hardware rounding mode equivalent of a AMDGPUFltRounds value.

Definition at line 239 of file SIModeRegisterDefaults.cpp.

References llvm::AMDGPU::ExtendedFltRoundOffset, llvm::AMDGPU::FltRoundToHWConversionTable, and llvm::TowardNegative.

decodeIndexFltRoundConversionTable()

static constexpr AMDGPUFltRounds decodeIndexFltRoundConversionTable ( uint32_t  HWMode )

staticconstexpr

Definition at line 74 of file SIModeRegisterDefaults.cpp.

References llvm::AMDGPU::ExtendedFltRoundOffset, llvm::AMDGPU::FltRoundConversionTable, and llvm::TowardNegative.

encodeFltRoundsTable()

static constexpr uint64_t encodeFltRoundsTable ( uint32_t  FltRoundsVal, uint32_t  HWF32Val, uint32_t  HWF64Val  )

staticconstexpr

Definition at line 54 of file SIModeRegisterDefaults.cpp.

References llvm::AMDGPU::ExtendedFltRoundOffset, getModeRegisterRoundMode(), and llvm::TowardNegative.

Referenced by encodeFltRoundsTableSame().

encodeFltRoundsTableSame()

static constexpr uint64_t encodeFltRoundsTableSame ( AMDGPUFltRounds  FltRoundsMode, uint32_t  HWVal  )

staticconstexpr

Definition at line 68 of file SIModeRegisterDefaults.cpp.

References encodeFltRoundsTable().

encodeFltRoundsToHWTable()

static constexpr uint64_t encodeFltRoundsToHWTable ( uint32_t  HWF32Val, uint32_t  HWF64Val, uint32_t  FltRoundsVal  )

staticconstexpr

Decode FLT_ROUNDS into the hardware value where the two rounding modes different and use an extended value.

Definition at line 191 of file SIModeRegisterDefaults.cpp.

References llvm::AMDGPU::ExtendedFltRoundOffset, getModeRegisterRoundMode(), and llvm::TowardNegative.

encodeFltRoundsToHWTableSame()

static constexpr uint64_t encodeFltRoundsToHWTableSame ( uint32_t  HWVal, uint32_t  FltRoundsVal  )

staticconstexpr

Definition at line 180 of file SIModeRegisterDefaults.cpp.

References llvm::AMDGPU::ExtendedFltRoundOffset, getModeRegisterRoundMode(), and llvm::TowardNegative.

getModeRegisterRoundMode()

static constexpr uint32_t getModeRegisterRoundMode ( uint32_t  HWFP32Val, uint32_t  HWFP64Val  )

staticconstexpr

Combine f32 and f64 rounding modes into a combined rounding mode value.

Definition at line 49 of file SIModeRegisterDefaults.cpp.

References llvm::AMDGPU::F32FltRoundOffset, and llvm::AMDGPU::F64FltRoundOffset.

Referenced by encodeFltRoundsTable(), encodeFltRoundsToHWTable(), and encodeFltRoundsToHWTableSame().

Variable Documentation

HWNearestTiesToEven

constexpr uint32_t HWNearestTiesToEven = FP_ROUND_ROUND_TO_NEAREST

staticconstexpr

Definition at line 82 of file SIModeRegisterDefaults.cpp.

HWTowardNegative

constexpr uint32_t HWTowardNegative = FP_ROUND_ROUND_TO_NEGINF

staticconstexpr

Definition at line 84 of file SIModeRegisterDefaults.cpp.

HWTowardPositive

constexpr uint32_t HWTowardPositive = FP_ROUND_ROUND_TO_INF

staticconstexpr

Definition at line 83 of file SIModeRegisterDefaults.cpp.

HWTowardZero

constexpr uint32_t HWTowardZero = FP_ROUND_ROUND_TO_ZERO

staticconstexpr

Definition at line 81 of file SIModeRegisterDefaults.cpp.