LLVM 17.0.0git
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#include "X86FrameLowering.h"
#include "MCTargetDesc/X86MCTargetDesc.h"
#include "X86InstrBuilder.h"
#include "X86InstrInfo.h"
#include "X86MachineFunctionInfo.h"
#include "X86Subtarget.h"
#include "X86TargetMachine.h"
#include "llvm/ADT/SmallSet.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/CodeGen/LivePhysRegs.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
#include "llvm/CodeGen/MachineModuleInfo.h"
#include "llvm/CodeGen/MachineRegisterInfo.h"
#include "llvm/CodeGen/WinEHFuncInfo.h"
#include "llvm/IR/DataLayout.h"
#include "llvm/IR/EHPersonalities.h"
#include "llvm/IR/Function.h"
#include "llvm/MC/MCAsmInfo.h"
#include "llvm/MC/MCObjectFileInfo.h"
#include "llvm/MC/MCSymbol.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/LEB128.h"
#include "llvm/Target/TargetOptions.h"
#include <cstdlib>
Go to the source code of this file.
Macros | |
#define | DEBUG_TYPE "x86-fl" |
Functions | |
STATISTIC (NumFrameLoopProbe, "Number of loop stack probes used in prologue") | |
STATISTIC (NumFrameExtraProbe, "Number of extra stack probes generated in prologue") | |
static unsigned | getSUBriOpcode (bool IsLP64) |
static unsigned | getADDriOpcode (bool IsLP64) |
static unsigned | getSUBrrOpcode (bool IsLP64) |
static unsigned | getADDrrOpcode (bool IsLP64) |
static unsigned | getANDriOpcode (bool IsLP64, int64_t Imm) |
static unsigned | getLEArOpcode (bool IsLP64) |
static unsigned | getMOVriOpcode (bool Use64BitReg, int64_t Imm) |
static bool | isEAXLiveIn (MachineBasicBlock &MBB) |
static bool | flagsNeedToBePreservedBeforeTheTerminators (const MachineBasicBlock &MBB) |
Check if the flags need to be preserved before the terminators. | |
static unsigned | calculateSetFPREG (uint64_t SPAdjust) |
static bool | isFuncletReturnInstr (MachineInstr &MI) |
static bool | isTailCallOpcode (unsigned Opc) |
static bool | HasNestArgument (const MachineFunction *MF) |
static unsigned | GetScratchRegister (bool Is64Bit, bool IsLP64, const MachineFunction &MF, bool Primary) |
GetScratchRegister - Get a temp register for performing work in the segmented stack and the Erlang/HiPE stack prologue. | |
static unsigned | getHiPELiteral (NamedMDNode *HiPELiteralsMD, const StringRef LiteralName) |
Lookup an ERTS parameter in the !hipe.literals named metadata node. | |
static bool | blockEndIsUnreachable (const MachineBasicBlock &MBB, MachineBasicBlock::const_iterator MBBI) |
Variables | |
static const uint64_t | kSplitStackAvailable = 256 |
#define DEBUG_TYPE "x86-fl" |
Definition at line 40 of file X86FrameLowering.cpp.
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Definition at line 3346 of file X86FrameLowering.cpp.
References llvm::all_of(), llvm::MachineBasicBlock::end(), MBB, MBBI, MI, and llvm::MachineBasicBlock::successors().
Referenced by llvm::X86FrameLowering::eliminateCallFramePseudoInstr().
Definition at line 1221 of file X86FrameLowering.cpp.
Referenced by llvm::X86FrameLowering::emitEpilogue(), llvm::X86FrameLowering::emitPrologue(), and llvm::X86FrameLowering::getFrameIndexReference().
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Check if the flags need to be preserved before the terminators.
This would be the case, if the eflags is live-in of the region composed by the terminators or live-out of that region, without being defined by a terminator.
Definition at line 160 of file X86FrameLowering.cpp.
References MBB, MI, llvm::MachineBasicBlock::successors(), and llvm::MachineBasicBlock::terminators().
Referenced by llvm::X86FrameLowering::canUseAsEpilogue().
Definition at line 112 of file X86FrameLowering.cpp.
Referenced by llvm::X86FrameLowering::restoreWin32EHStackPointers().
Definition at line 120 of file X86FrameLowering.cpp.
Referenced by llvm::X86FrameLowering::emitSPUpdate().
Definition at line 124 of file X86FrameLowering.cpp.
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Lookup an ERTS parameter in the !hipe.literals named metadata node.
HiPE provides Erlang Runtime System-internal parameters, such as PCB offsets to fields it needs, through a named metadata node "hipe.literals" containing name-value pairs.
Definition at line 3326 of file X86FrameLowering.cpp.
References llvm::NamedMDNode::getNumOperands(), llvm::NamedMDNode::getOperand(), llvm::MDString::getString(), llvm::ValueAsMetadata::getValue(), llvm::ConstantInt::getZExtValue(), and llvm::report_fatal_error().
Referenced by llvm::X86FrameLowering::adjustForHiPEPrologue().
Definition at line 128 of file X86FrameLowering.cpp.
Referenced by llvm::X86FrameLowering::emitEpilogue().
Definition at line 132 of file X86FrameLowering.cpp.
Referenced by llvm::X86FrameLowering::adjustForSegmentedStacks(), llvm::X86FrameLowering::emitPrologue(), and llvm::X86FrameLowering::emitSPUpdate().
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GetScratchRegister - Get a temp register for performing work in the segmented stack and the Erlang/HiPE stack prologue.
Depending on platform and the properties of the function either one or two registers will be needed. Set primary to true for the first register, false for the second.
Definition at line 3050 of file X86FrameLowering.cpp.
References llvm::CallingConv::Fast, llvm::Function::getCallingConv(), llvm::MachineFunction::getFunction(), HasNestArgument(), llvm::CallingConv::HiPE, llvm::report_fatal_error(), llvm::CallingConv::Tail, and llvm::CallingConv::X86_FastCall.
Referenced by llvm::X86FrameLowering::adjustForHiPEPrologue(), and llvm::X86FrameLowering::adjustForSegmentedStacks().
Definition at line 108 of file X86FrameLowering.cpp.
Definition at line 116 of file X86FrameLowering.cpp.
Referenced by llvm::X86FrameLowering::emitSPUpdate().
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Definition at line 3035 of file X86FrameLowering.cpp.
References E, F, llvm::MachineFunction::getFunction(), and I.
Referenced by llvm::X86FrameLowering::adjustForSegmentedStacks(), and GetScratchRegister().
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Definition at line 143 of file X86FrameLowering.cpp.
References llvm::MachineBasicBlock::liveins(), and MBB.
Referenced by llvm::X86FrameLowering::emitPrologue(), and llvm::X86FrameLowering::emitSPUpdate().
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Definition at line 2206 of file X86FrameLowering.cpp.
References llvm_unreachable, and MI.
Definition at line 2272 of file X86FrameLowering.cpp.
STATISTIC | ( | NumFrameExtraProbe | , |
"Number of extra stack probes generated in prologue" | |||
) |
STATISTIC | ( | NumFrameLoopProbe | , |
"Number of loop stack probes used in prologue" | |||
) |
Definition at line 3085 of file X86FrameLowering.cpp.