diff options
Diffstat (limited to 'lib/Target/ARM/Thumb2InstrInfo.cpp')
-rw-r--r-- | lib/Target/ARM/Thumb2InstrInfo.cpp | 54 |
1 files changed, 6 insertions, 48 deletions
diff --git a/lib/Target/ARM/Thumb2InstrInfo.cpp b/lib/Target/ARM/Thumb2InstrInfo.cpp index 8ab486b..e9e20dd 100644 --- a/lib/Target/ARM/Thumb2InstrInfo.cpp +++ b/lib/Target/ARM/Thumb2InstrInfo.cpp @@ -126,9 +126,9 @@ storeRegToStackSlot(MachineBasicBlock &MBB, MachineBasicBlock::iterator I, unsigned SrcReg, bool isKill, int FI, const TargetRegisterClass *RC, const TargetRegisterInfo *TRI) const { - if (RC == ARM::GPRRegisterClass || RC == ARM::tGPRRegisterClass || - RC == ARM::tcGPRRegisterClass || RC == ARM::rGPRRegisterClass || - RC == ARM::GPRnopcRegisterClass) { + if (RC == &ARM::GPRRegClass || RC == &ARM::tGPRRegClass || + RC == &ARM::tcGPRRegClass || RC == &ARM::rGPRRegClass || + RC == &ARM::GPRnopcRegClass) { DebugLoc DL; if (I != MBB.end()) DL = I->getDebugLoc(); @@ -153,9 +153,9 @@ loadRegFromStackSlot(MachineBasicBlock &MBB, MachineBasicBlock::iterator I, unsigned DestReg, int FI, const TargetRegisterClass *RC, const TargetRegisterInfo *TRI) const { - if (RC == ARM::GPRRegisterClass || RC == ARM::tGPRRegisterClass || - RC == ARM::tcGPRRegisterClass || RC == ARM::rGPRRegisterClass || - RC == ARM::GPRnopcRegisterClass) { + if (RC == &ARM::GPRRegClass || RC == &ARM::tGPRRegClass || + RC == &ARM::tcGPRRegClass || RC == &ARM::rGPRRegClass || + RC == &ARM::GPRnopcRegClass) { DebugLoc DL; if (I != MBB.end()) DL = I->getDebugLoc(); @@ -563,48 +563,6 @@ bool llvm::rewriteT2FrameIndex(MachineInstr &MI, unsigned FrameRegIdx, return Offset == 0; } -/// scheduleTwoAddrSource - Schedule the copy / re-mat of the source of the -/// two-addrss instruction inserted by two-address pass. -void -Thumb2InstrInfo::scheduleTwoAddrSource(MachineInstr *SrcMI, - MachineInstr *UseMI, - const TargetRegisterInfo &TRI) const { - if (SrcMI->getOpcode() != ARM::tMOVr || SrcMI->getOperand(1).isKill()) - return; - - unsigned PredReg = 0; - ARMCC::CondCodes CC = getInstrPredicate(UseMI, PredReg); - if (CC == ARMCC::AL || PredReg != ARM::CPSR) - return; - - // Schedule the copy so it doesn't come between previous instructions - // and UseMI which can form an IT block. - unsigned SrcReg = SrcMI->getOperand(1).getReg(); - ARMCC::CondCodes OCC = ARMCC::getOppositeCondition(CC); - MachineBasicBlock *MBB = UseMI->getParent(); - MachineBasicBlock::iterator MBBI = SrcMI; - unsigned NumInsts = 0; - while (--MBBI != MBB->begin()) { - if (MBBI->isDebugValue()) - continue; - - MachineInstr *NMI = &*MBBI; - ARMCC::CondCodes NCC = getInstrPredicate(NMI, PredReg); - if (!(NCC == CC || NCC == OCC) || - NMI->modifiesRegister(SrcReg, &TRI) || - NMI->modifiesRegister(ARM::CPSR, &TRI)) - break; - if (++NumInsts == 4) - // Too many in a row! - return; - } - - if (NumInsts) { - MBB->remove(SrcMI); - MBB->insert(++MBBI, SrcMI); - } -} - ARMCC::CondCodes llvm::getITInstrPredicate(const MachineInstr *MI, unsigned &PredReg) { unsigned Opc = MI->getOpcode(); |