LLVM 19.0.0git
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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/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") | |
STATISTIC (NumFunctionUsingPush2Pop2, "Number of funtions using push2/pop2") | |
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 unsigned | getPUSHOpcode (const X86Subtarget &ST) |
static unsigned | getPOPOpcode (const X86Subtarget &ST) |
static unsigned | getPUSH2Opcode (const X86Subtarget &ST) |
static unsigned | getPOP2Opcode (const X86Subtarget &ST) |
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 | isOpcodeRep (unsigned Opcode) |
Return true if an opcode is part of the REP group of instructions. | |
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 39 of file X86FrameLowering.cpp.
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Definition at line 3489 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 1210 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 192 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 3467 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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Definition at line 171 of file X86FrameLowering.cpp.
Referenced by llvm::X86FrameLowering::restoreCalleeSavedRegisters().
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Definition at line 164 of file X86FrameLowering.cpp.
Referenced by llvm::X86FrameLowering::emitEpilogue(), and llvm::X86FrameLowering::restoreCalleeSavedRegisters().
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Definition at line 168 of file X86FrameLowering.cpp.
Referenced by llvm::X86FrameLowering::spillCalleeSavedRegisters().
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Definition at line 160 of file X86FrameLowering.cpp.
Referenced by llvm::X86FrameLowering::emitPrologue(), and llvm::X86FrameLowering::spillCalleeSavedRegisters().
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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 3168 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 3154 of file X86FrameLowering.cpp.
References F, llvm::MachineFunction::getFunction(), and I.
Referenced by llvm::X86FrameLowering::adjustForSegmentedStacks(), and GetScratchRegister().
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Definition at line 175 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 2272 of file X86FrameLowering.cpp.
References llvm_unreachable, and MI.
Return true if an opcode is part of the REP group of instructions.
Definition at line 1415 of file X86FrameLowering.cpp.
Referenced by llvm::X86FrameLowering::emitPrologue().
Definition at line 2338 of file X86FrameLowering.cpp.
STATISTIC | ( | NumFrameExtraProbe | , |
"Number of extra stack probes generated in prologue" | |||
) |
STATISTIC | ( | NumFrameLoopProbe | , |
"Number of loop stack probes used in prologue" | |||
) |
STATISTIC | ( | NumFunctionUsingPush2Pop2 | , |
"Number of funtions using push2/pop2" | |||
) |
Definition at line 3204 of file X86FrameLowering.cpp.