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author | Bill Wendling <isanbard@gmail.com> | 2013-06-17 20:41:25 +0000 |
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committer | Bill Wendling <isanbard@gmail.com> | 2013-06-17 20:41:25 +0000 |
commit | d10fa8b1caf010fe4943ae5526c2c3b921339f72 (patch) | |
tree | 2ce25013aca5dbd5bd2b6b0b89d981cc05b5917e /lib/CodeGen/MachineRegisterInfo.cpp | |
parent | 99ccd5d5ef01881b3464b6e6a5b13b9d2c77387e (diff) | |
download | llvm-d10fa8b1caf010fe4943ae5526c2c3b921339f72.tar.gz llvm-d10fa8b1caf010fe4943ae5526c2c3b921339f72.tar.bz2 llvm-d10fa8b1caf010fe4943ae5526c2c3b921339f72.tar.xz |
Directly access objects which may change during compilation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184121 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/MachineRegisterInfo.cpp')
-rw-r--r-- | lib/CodeGen/MachineRegisterInfo.cpp | 51 |
1 files changed, 31 insertions, 20 deletions
diff --git a/lib/CodeGen/MachineRegisterInfo.cpp b/lib/CodeGen/MachineRegisterInfo.cpp index 68372f6c90..7f2c0caca4 100644 --- a/lib/CodeGen/MachineRegisterInfo.cpp +++ b/lib/CodeGen/MachineRegisterInfo.cpp @@ -19,16 +19,18 @@ using namespace llvm; -MachineRegisterInfo::MachineRegisterInfo(const TargetRegisterInfo &TRI) - : TRI(&TRI), IsSSA(true), TracksLiveness(true) { +MachineRegisterInfo::MachineRegisterInfo(const TargetMachine &TM) + : TM(TM), IsSSA(true), TracksLiveness(true) { VRegInfo.reserve(256); RegAllocHints.reserve(256); - UsedRegUnits.resize(TRI.getNumRegUnits()); - UsedPhysRegMask.resize(TRI.getNumRegs()); + UsedRegUnits.resize(getTargetRegisterInfo()->getNumRegUnits()); + UsedPhysRegMask.resize(getTargetRegisterInfo()->getNumRegs()); // Create the physreg use/def lists. - PhysRegUseDefLists = new MachineOperand*[TRI.getNumRegs()]; - memset(PhysRegUseDefLists, 0, sizeof(MachineOperand*)*TRI.getNumRegs()); + PhysRegUseDefLists = + new MachineOperand*[getTargetRegisterInfo()->getNumRegs()]; + memset(PhysRegUseDefLists, 0, + sizeof(MachineOperand*)*getTargetRegisterInfo()->getNumRegs()); } MachineRegisterInfo::~MachineRegisterInfo() { @@ -50,7 +52,8 @@ MachineRegisterInfo::constrainRegClass(unsigned Reg, const TargetRegisterClass *OldRC = getRegClass(Reg); if (OldRC == RC) return RC; - const TargetRegisterClass *NewRC = TRI->getCommonSubClass(OldRC, RC); + const TargetRegisterClass *NewRC = + getTargetRegisterInfo()->getCommonSubClass(OldRC, RC); if (!NewRC || NewRC == OldRC) return NewRC; if (NewRC->getNumRegs() < MinNumRegs) @@ -63,7 +66,8 @@ bool MachineRegisterInfo::recomputeRegClass(unsigned Reg, const TargetMachine &TM) { const TargetInstrInfo *TII = TM.getInstrInfo(); const TargetRegisterClass *OldRC = getRegClass(Reg); - const TargetRegisterClass *NewRC = TRI->getLargestLegalSuperClass(OldRC); + const TargetRegisterClass *NewRC = + getTargetRegisterInfo()->getLargestLegalSuperClass(OldRC); // Stop early if there is no room to grow. if (NewRC == OldRC) @@ -73,14 +77,16 @@ MachineRegisterInfo::recomputeRegClass(unsigned Reg, const TargetMachine &TM) { for (reg_nodbg_iterator I = reg_nodbg_begin(Reg), E = reg_nodbg_end(); I != E; ++I) { const TargetRegisterClass *OpRC = - I->getRegClassConstraint(I.getOperandNo(), TII, TRI); + I->getRegClassConstraint(I.getOperandNo(), TII, + getTargetRegisterInfo()); if (unsigned SubIdx = I.getOperand().getSubReg()) { if (OpRC) - NewRC = TRI->getMatchingSuperRegClass(NewRC, OpRC, SubIdx); + NewRC = getTargetRegisterInfo()->getMatchingSuperRegClass(NewRC, OpRC, + SubIdx); else - NewRC = TRI->getSubClassWithSubReg(NewRC, SubIdx); + NewRC = getTargetRegisterInfo()->getSubClassWithSubReg(NewRC, SubIdx); } else if (OpRC) - NewRC = TRI->getCommonSubClass(NewRC, OpRC); + NewRC = getTargetRegisterInfo()->getCommonSubClass(NewRC, OpRC); if (!NewRC || NewRC == OldRC) return false; } @@ -126,24 +132,28 @@ void MachineRegisterInfo::verifyUseList(unsigned Reg) const { MachineOperand *MO = &I.getOperand(); MachineInstr *MI = MO->getParent(); if (!MI) { - errs() << PrintReg(Reg, TRI) << " use list MachineOperand " << MO + errs() << PrintReg(Reg, getTargetRegisterInfo()) + << " use list MachineOperand " << MO << " has no parent instruction.\n"; Valid = false; } MachineOperand *MO0 = &MI->getOperand(0); unsigned NumOps = MI->getNumOperands(); if (!(MO >= MO0 && MO < MO0+NumOps)) { - errs() << PrintReg(Reg, TRI) << " use list MachineOperand " << MO + errs() << PrintReg(Reg, getTargetRegisterInfo()) + << " use list MachineOperand " << MO << " doesn't belong to parent MI: " << *MI; Valid = false; } if (!MO->isReg()) { - errs() << PrintReg(Reg, TRI) << " MachineOperand " << MO << ": " << *MO + errs() << PrintReg(Reg, getTargetRegisterInfo()) + << " MachineOperand " << MO << ": " << *MO << " is not a register\n"; Valid = false; } if (MO->getReg() != Reg) { - errs() << PrintReg(Reg, TRI) << " use-list MachineOperand " << MO << ": " + errs() << PrintReg(Reg, getTargetRegisterInfo()) + << " use-list MachineOperand " << MO << ": " << *MO << " is the wrong register\n"; Valid = false; } @@ -156,7 +166,7 @@ void MachineRegisterInfo::verifyUseLists() const { #ifndef NDEBUG for (unsigned i = 0, e = getNumVirtRegs(); i != e; ++i) verifyUseList(TargetRegisterInfo::index2VirtReg(i)); - for (unsigned i = 1, e = TRI->getNumRegs(); i != e; ++i) + for (unsigned i = 1, e = getTargetRegisterInfo()->getNumRegs(); i != e; ++i) verifyUseList(i); #endif } @@ -390,8 +400,8 @@ void MachineRegisterInfo::dumpUses(unsigned Reg) const { #endif void MachineRegisterInfo::freezeReservedRegs(const MachineFunction &MF) { - ReservedRegs = TRI->getReservedRegs(MF); - assert(ReservedRegs.size() == TRI->getNumRegs() && + ReservedRegs = getTargetRegisterInfo()->getReservedRegs(MF); + assert(ReservedRegs.size() == getTargetRegisterInfo()->getNumRegs() && "Invalid ReservedRegs vector from target"); } @@ -401,7 +411,8 @@ bool MachineRegisterInfo::isConstantPhysReg(unsigned PhysReg, // Check if any overlapping register is modified, or allocatable so it may be // used later. - for (MCRegAliasIterator AI(PhysReg, TRI, true); AI.isValid(); ++AI) + for (MCRegAliasIterator AI(PhysReg, getTargetRegisterInfo(), true); + AI.isValid(); ++AI) if (!def_empty(*AI) || isAllocatable(*AI)) return false; return true; 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