summaryrefslogtreecommitdiffstats
path: root/gnu/llvm/lib/Target/PowerPC/PPCMCInstLower.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'gnu/llvm/lib/Target/PowerPC/PPCMCInstLower.cpp')
-rw-r--r--gnu/llvm/lib/Target/PowerPC/PPCMCInstLower.cpp200
1 files changed, 0 insertions, 200 deletions
diff --git a/gnu/llvm/lib/Target/PowerPC/PPCMCInstLower.cpp b/gnu/llvm/lib/Target/PowerPC/PPCMCInstLower.cpp
deleted file mode 100644
index 1d860448de5..00000000000
--- a/gnu/llvm/lib/Target/PowerPC/PPCMCInstLower.cpp
+++ /dev/null
@@ -1,200 +0,0 @@
-//===-- PPCMCInstLower.cpp - Convert PPC MachineInstr to an MCInst --------===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file contains code to lower PPC MachineInstrs to their corresponding
-// MCInst records.
-//
-//===----------------------------------------------------------------------===//
-
-#include "MCTargetDesc/PPCMCExpr.h"
-#include "PPC.h"
-#include "PPCSubtarget.h"
-#include "llvm/ADT/SmallString.h"
-#include "llvm/ADT/Twine.h"
-#include "llvm/CodeGen/AsmPrinter.h"
-#include "llvm/CodeGen/MachineFunction.h"
-#include "llvm/CodeGen/MachineModuleInfoImpls.h"
-#include "llvm/CodeGen/TargetLowering.h"
-#include "llvm/IR/DataLayout.h"
-#include "llvm/IR/GlobalValue.h"
-#include "llvm/IR/Mangler.h"
-#include "llvm/MC/MCAsmInfo.h"
-#include "llvm/MC/MCExpr.h"
-#include "llvm/MC/MCInst.h"
-#include "llvm/Target/TargetLoweringObjectFile.h"
-using namespace llvm;
-
-static MachineModuleInfoMachO &getMachOMMI(AsmPrinter &AP) {
- return AP.MMI->getObjFileInfo<MachineModuleInfoMachO>();
-}
-
-static MCSymbol *GetSymbolFromOperand(const MachineOperand &MO,
- AsmPrinter &AP) {
- const TargetMachine &TM = AP.TM;
- Mangler &Mang = TM.getObjFileLowering()->getMangler();
- const DataLayout &DL = AP.getDataLayout();
- MCContext &Ctx = AP.OutContext;
-
- SmallString<128> Name;
- StringRef Suffix;
- if (MO.getTargetFlags() & PPCII::MO_NLP_FLAG)
- Suffix = "$non_lazy_ptr";
-
- if (!Suffix.empty())
- Name += DL.getPrivateGlobalPrefix();
-
- if (!MO.isGlobal()) {
- assert(MO.isSymbol() && "Isn't a symbol reference");
- Mangler::getNameWithPrefix(Name, MO.getSymbolName(), DL);
- } else {
- const GlobalValue *GV = MO.getGlobal();
- TM.getNameWithPrefix(Name, GV, Mang);
- }
-
- Name += Suffix;
- MCSymbol *Sym = Ctx.getOrCreateSymbol(Name);
-
- // If the symbol reference is actually to a non_lazy_ptr, not to the symbol,
- // then add the suffix.
- if (MO.getTargetFlags() & PPCII::MO_NLP_FLAG) {
- MachineModuleInfoMachO &MachO = getMachOMMI(AP);
-
- MachineModuleInfoImpl::StubValueTy &StubSym = MachO.getGVStubEntry(Sym);
-
- if (!StubSym.getPointer()) {
- assert(MO.isGlobal() && "Extern symbol not handled yet");
- StubSym = MachineModuleInfoImpl::
- StubValueTy(AP.getSymbol(MO.getGlobal()),
- !MO.getGlobal()->hasInternalLinkage());
- }
- return Sym;
- }
-
- return Sym;
-}
-
-static MCOperand GetSymbolRef(const MachineOperand &MO, const MCSymbol *Symbol,
- AsmPrinter &Printer, bool isDarwin) {
- MCContext &Ctx = Printer.OutContext;
- MCSymbolRefExpr::VariantKind RefKind = MCSymbolRefExpr::VK_None;
-
- unsigned access = MO.getTargetFlags() & PPCII::MO_ACCESS_MASK;
-
- switch (access) {
- case PPCII::MO_TPREL_LO:
- RefKind = MCSymbolRefExpr::VK_PPC_TPREL_LO;
- break;
- case PPCII::MO_TPREL_HA:
- RefKind = MCSymbolRefExpr::VK_PPC_TPREL_HA;
- break;
- case PPCII::MO_DTPREL_LO:
- RefKind = MCSymbolRefExpr::VK_PPC_DTPREL_LO;
- break;
- case PPCII::MO_TLSLD_LO:
- RefKind = MCSymbolRefExpr::VK_PPC_GOT_TLSLD_LO;
- break;
- case PPCII::MO_TOC_LO:
- RefKind = MCSymbolRefExpr::VK_PPC_TOC_LO;
- break;
- case PPCII::MO_TLS:
- RefKind = MCSymbolRefExpr::VK_PPC_TLS;
- break;
- }
-
- if (MO.getTargetFlags() == PPCII::MO_PLT)
- RefKind = MCSymbolRefExpr::VK_PLT;
-
- const MachineFunction *MF = MO.getParent()->getParent()->getParent();
- const PPCSubtarget *Subtarget = &(MF->getSubtarget<PPCSubtarget>());
- const TargetMachine &TM = Printer.TM;
- const MCExpr *Expr = MCSymbolRefExpr::create(Symbol, RefKind, Ctx);
- // For -msecure-plt -fPIC, add 32768 to the symbol.
- if (Subtarget->isSecurePlt() && TM.isPositionIndependent() &&
- MF->getFunction().getParent()->getPICLevel() == PICLevel::BigPIC &&
- MO.getTargetFlags() == PPCII::MO_PLT)
- Expr = MCBinaryExpr::createAdd(Expr,
- MCConstantExpr::create(32768, Ctx),
- Ctx);
-
- if (!MO.isJTI() && MO.getOffset())
- Expr = MCBinaryExpr::createAdd(Expr,
- MCConstantExpr::create(MO.getOffset(), Ctx),
- Ctx);
-
- // Subtract off the PIC base if required.
- if (MO.getTargetFlags() & PPCII::MO_PIC_FLAG) {
- const MachineFunction *MF = MO.getParent()->getParent()->getParent();
-
- const MCExpr *PB = MCSymbolRefExpr::create(MF->getPICBaseSymbol(), Ctx);
- Expr = MCBinaryExpr::createSub(Expr, PB, Ctx);
- }
-
- // Add ha16() / lo16() markers if required.
- switch (access) {
- case PPCII::MO_LO:
- Expr = PPCMCExpr::createLo(Expr, isDarwin, Ctx);
- break;
- case PPCII::MO_HA:
- Expr = PPCMCExpr::createHa(Expr, isDarwin, Ctx);
- break;
- }
-
- return MCOperand::createExpr(Expr);
-}
-
-void llvm::LowerPPCMachineInstrToMCInst(const MachineInstr *MI, MCInst &OutMI,
- AsmPrinter &AP, bool isDarwin) {
- OutMI.setOpcode(MI->getOpcode());
-
- for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) {
- MCOperand MCOp;
- if (LowerPPCMachineOperandToMCOperand(MI->getOperand(i), MCOp, AP,
- isDarwin))
- OutMI.addOperand(MCOp);
- }
-}
-
-bool llvm::LowerPPCMachineOperandToMCOperand(const MachineOperand &MO,
- MCOperand &OutMO, AsmPrinter &AP,
- bool isDarwin) {
- switch (MO.getType()) {
- default:
- llvm_unreachable("unknown operand type");
- case MachineOperand::MO_Register:
- assert(!MO.getSubReg() && "Subregs should be eliminated!");
- assert(MO.getReg() > PPC::NoRegister &&
- MO.getReg() < PPC::NUM_TARGET_REGS &&
- "Invalid register for this target!");
- OutMO = MCOperand::createReg(MO.getReg());
- return true;
- case MachineOperand::MO_Immediate:
- OutMO = MCOperand::createImm(MO.getImm());
- return true;
- case MachineOperand::MO_MachineBasicBlock:
- OutMO = MCOperand::createExpr(
- MCSymbolRefExpr::create(MO.getMBB()->getSymbol(), AP.OutContext));
- return true;
- case MachineOperand::MO_GlobalAddress:
- case MachineOperand::MO_ExternalSymbol:
- OutMO = GetSymbolRef(MO, GetSymbolFromOperand(MO, AP), AP, isDarwin);
- return true;
- case MachineOperand::MO_JumpTableIndex:
- OutMO = GetSymbolRef(MO, AP.GetJTISymbol(MO.getIndex()), AP, isDarwin);
- return true;
- case MachineOperand::MO_ConstantPoolIndex:
- OutMO = GetSymbolRef(MO, AP.GetCPISymbol(MO.getIndex()), AP, isDarwin);
- return true;
- case MachineOperand::MO_BlockAddress:
- OutMO = GetSymbolRef(MO, AP.GetBlockAddressSymbol(MO.getBlockAddress()), AP,
- isDarwin);
- return true;
- case MachineOperand::MO_RegisterMask:
- return false;
- }
-}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.