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-rw-r--r--contrib/llvm/lib/Target/ARM/ARMInstrInfo.cpp77
1 files changed, 3 insertions, 74 deletions
diff --git a/contrib/llvm/lib/Target/ARM/ARMInstrInfo.cpp b/contrib/llvm/lib/Target/ARM/ARMInstrInfo.cpp
index 84f95be..cf973d6 100644
--- a/contrib/llvm/lib/Target/ARM/ARMInstrInfo.cpp
+++ b/contrib/llvm/lib/Target/ARM/ARMInstrInfo.cpp
@@ -51,7 +51,8 @@ void ARMInstrInfo::getNoopForMachoTarget(MCInst &NopInst) const {
unsigned ARMInstrInfo::getUnindexedOpcode(unsigned Opc) const {
switch (Opc) {
- default: break;
+ default:
+ break;
case ARM::LDR_PRE_IMM:
case ARM::LDR_PRE_REG:
case ARM::LDR_POST_IMM:
@@ -124,82 +125,10 @@ void ARMInstrInfo::expandLoadStackGuard(MachineBasicBlock::iterator MI,
.addGlobalAddress(GV, 0, ARMII::MO_NONLAZY);
unsigned Flag = MachineMemOperand::MOLoad | MachineMemOperand::MOInvariant;
MachineMemOperand *MMO = MBB.getParent()->getMachineMemOperand(
- MachinePointerInfo::getGOT(), Flag, 4, 4);
+ MachinePointerInfo::getGOT(*MBB.getParent()), Flag, 4, 4);
MIB.addMemOperand(MMO);
MIB = BuildMI(MBB, MI, DL, get(ARM::LDRi12), Reg);
MIB.addReg(Reg, RegState::Kill).addImm(0);
MIB.setMemRefs(MI->memoperands_begin(), MI->memoperands_end());
AddDefaultPred(MIB);
}
-
-namespace {
- /// ARMCGBR - Create Global Base Reg pass. This initializes the PIC
- /// global base register for ARM ELF.
- struct ARMCGBR : public MachineFunctionPass {
- static char ID;
- ARMCGBR() : MachineFunctionPass(ID) {}
-
- bool runOnMachineFunction(MachineFunction &MF) override {
- ARMFunctionInfo *AFI = MF.getInfo<ARMFunctionInfo>();
- if (AFI->getGlobalBaseReg() == 0)
- return false;
- const ARMSubtarget &STI =
- static_cast<const ARMSubtarget &>(MF.getSubtarget());
- // Don't do this for Thumb1.
- if (STI.isThumb1Only())
- return false;
-
- const TargetMachine &TM = MF.getTarget();
- if (TM.getRelocationModel() != Reloc::PIC_)
- return false;
-
- LLVMContext *Context = &MF.getFunction()->getContext();
- unsigned ARMPCLabelIndex = AFI->createPICLabelUId();
- unsigned PCAdj = STI.isThumb() ? 4 : 8;
- ARMConstantPoolValue *CPV = ARMConstantPoolSymbol::Create(
- *Context, "_GLOBAL_OFFSET_TABLE_", ARMPCLabelIndex, PCAdj);
-
- unsigned Align = TM.getDataLayout()->getPrefTypeAlignment(
- Type::getInt32PtrTy(*Context));
- unsigned Idx = MF.getConstantPool()->getConstantPoolIndex(CPV, Align);
-
- MachineBasicBlock &FirstMBB = MF.front();
- MachineBasicBlock::iterator MBBI = FirstMBB.begin();
- DebugLoc DL = FirstMBB.findDebugLoc(MBBI);
- unsigned TempReg =
- MF.getRegInfo().createVirtualRegister(&ARM::rGPRRegClass);
- unsigned Opc = STI.isThumb2() ? ARM::t2LDRpci : ARM::LDRcp;
- const TargetInstrInfo &TII = *STI.getInstrInfo();
- MachineInstrBuilder MIB = BuildMI(FirstMBB, MBBI, DL,
- TII.get(Opc), TempReg)
- .addConstantPoolIndex(Idx);
- if (Opc == ARM::LDRcp)
- MIB.addImm(0);
- AddDefaultPred(MIB);
-
- // Fix the GOT address by adding pc.
- unsigned GlobalBaseReg = AFI->getGlobalBaseReg();
- Opc = STI.isThumb2() ? ARM::tPICADD : ARM::PICADD;
- MIB = BuildMI(FirstMBB, MBBI, DL, TII.get(Opc), GlobalBaseReg)
- .addReg(TempReg)
- .addImm(ARMPCLabelIndex);
- if (Opc == ARM::PICADD)
- AddDefaultPred(MIB);
-
- return true;
- }
-
- const char *getPassName() const override {
- return "ARM PIC Global Base Reg Initialization";
- }
-
- void getAnalysisUsage(AnalysisUsage &AU) const override {
- AU.setPreservesCFG();
- MachineFunctionPass::getAnalysisUsage(AU);
- }
- };
-}
-
-char ARMCGBR::ID = 0;
-FunctionPass*
-llvm::createARMGlobalBaseRegPass() { return new ARMCGBR(); }
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