LLVM  10.0.0svn
Macros | Functions | Variables
TargetLoweringBase.cpp File Reference
#include "llvm/ADT/BitVector.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/ADT/Triple.h"
#include "llvm/ADT/Twine.h"
#include "llvm/CodeGen/Analysis.h"
#include "llvm/CodeGen/ISDOpcodes.h"
#include "llvm/CodeGen/MachineBasicBlock.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineInstr.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
#include "llvm/CodeGen/MachineMemOperand.h"
#include "llvm/CodeGen/MachineOperand.h"
#include "llvm/CodeGen/MachineRegisterInfo.h"
#include "llvm/CodeGen/RuntimeLibcalls.h"
#include "llvm/CodeGen/StackMaps.h"
#include "llvm/CodeGen/TargetLowering.h"
#include "llvm/CodeGen/TargetOpcodes.h"
#include "llvm/CodeGen/TargetRegisterInfo.h"
#include "llvm/CodeGen/ValueTypes.h"
#include "llvm/IR/Attributes.h"
#include "llvm/IR/CallingConv.h"
#include "llvm/IR/DataLayout.h"
#include "llvm/IR/DerivedTypes.h"
#include "llvm/IR/Function.h"
#include "llvm/IR/GlobalValue.h"
#include "llvm/IR/GlobalVariable.h"
#include "llvm/IR/IRBuilder.h"
#include "llvm/IR/Module.h"
#include "llvm/IR/Type.h"
#include "llvm/Support/BranchProbability.h"
#include "llvm/Support/Casting.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Compiler.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/MachineValueType.h"
#include "llvm/Support/MathExtras.h"
#include "llvm/Target/TargetMachine.h"
#include <algorithm>
#include <cassert>
#include <cstddef>
#include <cstdint>
#include <cstring>
#include <iterator>
#include <string>
#include <tuple>
#include <utility>
#include "llvm/IR/RuntimeLibcalls.def"
#include "llvm/IR/Instruction.def"

Go to the source code of this file.

Macros

#define HANDLE_LIBCALL(code, name)   setLibcallName(RTLIB::code, name);
 
#define OP_TO_LIBCALL(Name, Enum)
 
#define HANDLE_INST(NUM, OPCODE, CLASS)   OPCODE = NUM,
 
#define LAST_OTHER_INST(NUM)   InstructionOpcodesCount = NUM
 

Functions

static bool darwinHasSinCos (const Triple &TT)
 
static void InitCmpLibcallCCs (ISD::CondCode *CCs)
 InitCmpLibcallCCs - Set default comparison libcall CC. More...
 
static unsigned getVectorTypeBreakdownMVT (MVT VT, MVT &IntermediateVT, unsigned &NumIntermediates, MVT &RegisterVT, TargetLoweringBase *TLI)
 
static StringRef getRecipEstimateForFunc (MachineFunction &MF)
 Get the reciprocal estimate attribute string for a function that will override the target defaults. More...
 
static std::string getReciprocalOpName (bool IsSqrt, EVT VT)
 Construct a string for the given reciprocal operation of the given type. More...
 
static bool parseRefinementStep (StringRef In, size_t &Position, uint8_t &Value)
 Return the character position and value (a single numeric character) of a customized refinement operation in the input string if it exists. More...
 
static int getOpEnabled (bool IsSqrt, EVT VT, StringRef Override)
 For the input attribute string, return one of the ReciprocalEstimate enum status values (enabled, disabled, or not specified) for this operation on the specified data type. More...
 
static int getOpRefinementSteps (bool IsSqrt, EVT VT, StringRef Override)
 For the input attribute string, return the customized refinement step count for this operation on the specified data type. More...
 

Variables

static cl::opt< boolJumpIsExpensiveOverride ("jump-is-expensive", cl::init(false), cl::desc("Do not create extra branches to split comparison logic."), cl::Hidden)
 
static cl::opt< unsignedMinimumJumpTableEntries ("min-jump-table-entries", cl::init(4), cl::Hidden, cl::desc("Set minimum number of entries to use a jump table."))
 
static cl::opt< unsignedMaximumJumpTableSize ("max-jump-table-size", cl::init(UINT_MAX), cl::Hidden, cl::desc("Set maximum size of jump tables."))
 
static cl::opt< unsignedJumpTableDensity ("jump-table-density", cl::init(10), cl::Hidden, cl::desc("Minimum density for building a jump table in " "a normal function"))
 Minimum jump table density for normal functions. More...
 
static cl::opt< unsignedOptsizeJumpTableDensity ("optsize-jump-table-density", cl::init(40), cl::Hidden, cl::desc("Minimum density for building a jump table in " "an optsize function"))
 Minimum jump table density for -Os or -Oz functions. More...
 
static cl::opt< int > MinPercentageForPredictableBranch ("min-predictable-branch", cl::init(99), cl::desc("Minimum percentage (0-100) that a condition must be either true " "or false to assume that the condition is predictable"), cl::Hidden)
 

Macro Definition Documentation

◆ HANDLE_INST

#define HANDLE_INST (   NUM,
  OPCODE,
  CLASS 
)    OPCODE = NUM,

◆ HANDLE_LIBCALL

#define HANDLE_LIBCALL (   code,
  name 
)    setLibcallName(RTLIB::code, name);

◆ LAST_OTHER_INST

#define LAST_OTHER_INST (   NUM)    InstructionOpcodesCount = NUM

◆ OP_TO_LIBCALL

#define OP_TO_LIBCALL (   Name,
  Enum 
)
Value:
case Name: \
switch (VT.SimpleTy) { \
default: \
return UNKNOWN_LIBCALL; \
case MVT::i8: \
return Enum##_1; \
case MVT::i16: \
return Enum##_2; \
case MVT::i32: \
return Enum##_4; \
case MVT::i64: \
return Enum##_8; \
case MVT::i128: \
return Enum##_16; \
}
amdgpu Simplify well known AMD library false FunctionCallee Value const Twine & Name

Referenced by llvm::RTLIB::getSYNC().

Function Documentation

◆ darwinHasSinCos()

static bool darwinHasSinCos ( const Triple TT)
static

◆ getOpEnabled()

static int getOpEnabled ( bool  IsSqrt,
EVT  VT,
StringRef  Override 
)
static

For the input attribute string, return one of the ReciprocalEstimate enum status values (enabled, disabled, or not specified) for this operation on the specified data type.

Definition at line 1875 of file TargetLoweringBase.cpp.

References llvm::StringRef::empty(), Enabled, getReciprocalOpName(), parseRefinementStep(), llvm::SmallVectorBase::size(), llvm::StringRef::split(), and llvm::StringRef::substr().

Referenced by llvm::TargetLoweringBase::getRecipEstimateDivEnabled(), and llvm::TargetLoweringBase::getRecipEstimateSqrtEnabled().

◆ getOpRefinementSteps()

static int getOpRefinementSteps ( bool  IsSqrt,
EVT  VT,
StringRef  Override 
)
static

For the input attribute string, return the customized refinement step count for this operation on the specified data type.

If the step count does not exist, return the ReciprocalEstimate enum value for unspecified.

Definition at line 1935 of file TargetLoweringBase.cpp.

References assert(), llvm::StringRef::empty(), getReciprocalOpName(), parseRefinementStep(), llvm::SmallVectorBase::size(), llvm::StringRef::split(), and llvm::StringRef::substr().

Referenced by llvm::TargetLoweringBase::getDivRefinementSteps(), and llvm::TargetLoweringBase::getSqrtRefinementSteps().

◆ getRecipEstimateForFunc()

static StringRef getRecipEstimateForFunc ( MachineFunction MF)
static

◆ getReciprocalOpName()

static std::string getReciprocalOpName ( bool  IsSqrt,
EVT  VT 
)
static

Construct a string for the given reciprocal operation of the given type.

This string should match the corresponding option to the front-end's "-mrecip" flag assuming those strings have been passed through in an attribute string. For example, "vec-divf" for a division of a vXf32.

Definition at line 1832 of file TargetLoweringBase.cpp.

References assert(), llvm::MVT::f32, llvm::MVT::f64, llvm::EVT::getScalarType(), llvm::EVT::isVector(), and Name.

Referenced by getOpEnabled(), and getOpRefinementSteps().

◆ getVectorTypeBreakdownMVT()

static unsigned getVectorTypeBreakdownMVT ( MVT  VT,
MVT IntermediateVT,
unsigned NumIntermediates,
MVT RegisterVT,
TargetLoweringBase TLI 
)
static

◆ InitCmpLibcallCCs()

static void InitCmpLibcallCCs ( ISD::CondCode CCs)
static

InitCmpLibcallCCs - Set default comparison libcall CC.

Definition at line 529 of file TargetLoweringBase.cpp.

References llvm::ISD::SETCC_INVALID, llvm::ISD::SETEQ, llvm::ISD::SETGE, llvm::ISD::SETGT, llvm::ISD::SETLE, llvm::ISD::SETLT, and llvm::ISD::SETNE.

Referenced by llvm::TargetLoweringBase::TargetLoweringBase().

◆ parseRefinementStep()

static bool parseRefinementStep ( StringRef  In,
size_t &  Position,
uint8_t &  Value 
)
static

Return the character position and value (a single numeric character) of a customized refinement operation in the input string if it exists.

Return false if there is no customized refinement step count.

Definition at line 1852 of file TargetLoweringBase.cpp.

References llvm::StringRef::find(), llvm::StringRef::npos, llvm::report_fatal_error(), llvm::StringRef::size(), and llvm::StringRef::substr().

Referenced by getOpEnabled(), and getOpRefinementSteps().

Variable Documentation

◆ JumpIsExpensiveOverride

cl::opt<bool> JumpIsExpensiveOverride("jump-is-expensive", cl::init(false), cl::desc("Do not create extra branches to split comparison logic."), cl::Hidden)
static

◆ JumpTableDensity

cl::opt<unsigned> JumpTableDensity("jump-table-density", cl::init(10), cl::Hidden, cl::desc("Minimum density for building a jump table in " "a normal function"))
static

Minimum jump table density for normal functions.

Referenced by llvm::TargetLoweringBase::getMinimumJumpTableDensity().

◆ MaximumJumpTableSize

cl::opt<unsigned> MaximumJumpTableSize("max-jump-table-size", cl::init(UINT_MAX), cl::Hidden, cl::desc("Set maximum size of jump tables."))
static

◆ MinimumJumpTableEntries

cl::opt<unsigned> MinimumJumpTableEntries("min-jump-table-entries", cl::init(4), cl::Hidden, cl::desc("Set minimum number of entries to use a jump table."))
static

◆ MinPercentageForPredictableBranch

cl::opt<int> MinPercentageForPredictableBranch("min-predictable-branch", cl::init(99), cl::desc("Minimum percentage (0-100) that a condition must be either true " "or false to assume that the condition is predictable"), cl::Hidden)
static

Referenced by darwinHasSinCos().

◆ OptsizeJumpTableDensity

cl::opt<unsigned> OptsizeJumpTableDensity("optsize-jump-table-density", cl::init(40), cl::Hidden, cl::desc("Minimum density for building a jump table in " "an optsize function"))
static

Minimum jump table density for -Os or -Oz functions.

Referenced by llvm::TargetLoweringBase::getMinimumJumpTableDensity().