FastISel.cpp File Reference

#include "llvm/CodeGen/FastISel.h"
#include "llvm/ADT/APFloat.h"
#include "llvm/ADT/APSInt.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/Optional.h"
#include "llvm/ADT/SmallPtrSet.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/Analysis/BranchProbabilityInfo.h"
#include "llvm/Analysis/TargetLibraryInfo.h"
#include "llvm/CodeGen/Analysis.h"
#include "llvm/CodeGen/FunctionLoweringInfo.h"
#include "llvm/CodeGen/ISDOpcodes.h"
#include "llvm/CodeGen/MachineBasicBlock.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/MachineInstr.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
#include "llvm/CodeGen/MachineMemOperand.h"
#include "llvm/CodeGen/MachineModuleInfo.h"
#include "llvm/CodeGen/MachineOperand.h"
#include "llvm/CodeGen/MachineRegisterInfo.h"
#include "llvm/CodeGen/StackMaps.h"
#include "llvm/CodeGen/TargetInstrInfo.h"
#include "llvm/CodeGen/TargetLowering.h"
#include "llvm/CodeGen/TargetSubtargetInfo.h"
#include "llvm/CodeGen/ValueTypes.h"
#include "llvm/IR/Argument.h"
#include "llvm/IR/Attributes.h"
#include "llvm/IR/BasicBlock.h"
#include "llvm/IR/CallSite.h"
#include "llvm/IR/CallingConv.h"
#include "llvm/IR/Constant.h"
#include "llvm/IR/Constants.h"
#include "llvm/IR/DataLayout.h"
#include "llvm/IR/DebugInfo.h"
#include "llvm/IR/DebugLoc.h"
#include "llvm/IR/DerivedTypes.h"
#include "llvm/IR/Function.h"
#include "llvm/IR/GetElementPtrTypeIterator.h"
#include "llvm/IR/GlobalValue.h"
#include "llvm/IR/InlineAsm.h"
#include "llvm/IR/InstrTypes.h"
#include "llvm/IR/Instruction.h"
#include "llvm/IR/Instructions.h"
#include "llvm/IR/IntrinsicInst.h"
#include "llvm/IR/LLVMContext.h"
#include "llvm/IR/Mangler.h"
#include "llvm/IR/Metadata.h"
#include "llvm/IR/Operator.h"
#include "llvm/IR/PatternMatch.h"
#include "llvm/IR/Type.h"
#include "llvm/IR/User.h"
#include "llvm/IR/Value.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCInstrDesc.h"
#include "llvm/MC/MCRegisterInfo.h"
#include "llvm/Support/Casting.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/MachineValueType.h"
#include "llvm/Support/MathExtras.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Target/TargetMachine.h"
#include "llvm/Target/TargetOptions.h"
#include <algorithm>
#include <cassert>
#include <cstdint>
#include <iterator>
#include <utility>

Go to the source code of this file.

Macros
#define	DEBUG_TYPE   "isel"

Functions
	STATISTIC (NumFastIselSuccessIndependent, "Number of insts selected by " "target-independent selector")
	STATISTIC (NumFastIselSuccessTarget, "Number of insts selected by " "target-specific selector")
	STATISTIC (NumFastIselDead, "Number of dead insts removed on failure")
static unsigned	findSinkableLocalRegDef (MachineInstr &MI)
	Return the defined register if this instruction defines exactly one virtual register and uses no other virtual registers. More...
static bool	isRegUsedByPhiNodes (unsigned DefReg, FunctionLoweringInfo &FuncInfo)
static AttributeList	getReturnAttrs (FastISel::CallLoweringInfo &CLI)
	Returns an AttributeList representing the attributes applied to the return value of the given call. More...

Variables
static cl::opt< bool >	SinkLocalValues ("fast-isel-sink-local-values", cl::init(true), cl::Hidden, cl::desc("Sink local values in FastISel"))

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "isel"

Definition at line 116 of file FastISel.cpp.

Function Documentation

findSinkableLocalRegDef()

static unsigned findSinkableLocalRegDef ( MachineInstr &  MI )

static

Return the defined register if this instruction defines exactly one virtual register and uses no other virtual registers.

Otherwise return 0.

Definition at line 169 of file FastISel.cpp.

References llvm::MachineInstr::isSafeToMove(), llvm::TargetRegisterInfo::isVirtualRegister(), llvm::MachineInstr::operands(), SinkLocalValues, and llvm::SPII::Store.

getReturnAttrs()

static AttributeList getReturnAttrs ( FastISel::CallLoweringInfo &  CLI )

static

Returns an AttributeList representing the attributes applied to the return value of the given call.

Definition at line 1084 of file FastISel.cpp.

References llvm::AMDGPU::HSAMD::Kernel::Key::Attrs, llvm::AttributeList::get(), llvm::Type::getContext(), llvm::Attribute::InReg, llvm::FastISel::CallLoweringInfo::IsInReg, llvm::SmallVectorTemplateBase< T >::push_back(), llvm::FastISel::CallLoweringInfo::RetSExt, llvm::FastISel::CallLoweringInfo::RetTy, llvm::AttributeList::ReturnIndex, llvm::FastISel::CallLoweringInfo::RetZExt, llvm::Attribute::SExt, and llvm::Attribute::ZExt.

Referenced by llvm::FastISel::lowerCallTo().

isRegUsedByPhiNodes()

static bool isRegUsedByPhiNodes ( unsigned  DefReg, FunctionLoweringInfo &  FuncInfo  )

static

Definition at line 221 of file FastISel.cpp.

References assert(), llvm::dbgs(), llvm::MachineInstr::eraseFromParent(), llvm::ilist_node_impl< OptionsT >::getIterator(), I, initialize(), LLVM_DEBUG, llvm::max(), MRI, P, llvm::FunctionLoweringInfo::PHINodesToUpdate, llvm::SmallVectorTemplateBase< T >::push_back(), and llvm::MachineInstr::setDebugLoc().

STATISTIC() [1/3]

STATISTIC	(	NumFastIselSuccessIndependent	,
		"Number of insts selected by " "target-independent selector"
	)

STATISTIC() [2/3]

STATISTIC	(	NumFastIselSuccessTarget	,
		"Number of insts selected by " "target-specific selector"
	)

STATISTIC() [3/3]

STATISTIC	(	NumFastIselDead	,
		"Number of dead insts removed on failure"
	)

Variable Documentation

SinkLocalValues

cl::opt<bool> SinkLocalValues("fast-isel-sink-local-values", cl::init(true), cl::Hidden, cl::desc("Sink local values in FastISel"))

static

Referenced by findSinkableLocalRegDef().