diff options
Diffstat (limited to 'llvm/lib/Target/X86/X86RegisterInfo.cpp')
| -rw-r--r-- | llvm/lib/Target/X86/X86RegisterInfo.cpp | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/llvm/lib/Target/X86/X86RegisterInfo.cpp b/llvm/lib/Target/X86/X86RegisterInfo.cpp index 7788088685b..e88c050feba 100644 --- a/llvm/lib/Target/X86/X86RegisterInfo.cpp +++ b/llvm/lib/Target/X86/X86RegisterInfo.cpp @@ -806,7 +806,7 @@ void X86RegisterInfo::storeRegToStackSlot(MachineBasicBlock &MBB, } void X86RegisterInfo::storeRegToAddr(MachineFunction &MF, unsigned SrcReg, - SmallVectorImpl<MachineOperand> Addr, + SmallVectorImpl<MachineOperand> &Addr, const TargetRegisterClass *RC, SmallVectorImpl<MachineInstr*> &NewMIs) const { unsigned Opc = getStoreRegOpcode(RC); @@ -862,7 +862,7 @@ void X86RegisterInfo::loadRegFromStackSlot(MachineBasicBlock &MBB, } void X86RegisterInfo::loadRegFromAddr(MachineFunction &MF, unsigned DestReg, - SmallVectorImpl<MachineOperand> Addr, + SmallVectorImpl<MachineOperand> &Addr, const TargetRegisterClass *RC, SmallVectorImpl<MachineInstr*> &NewMIs) const { unsigned Opc = getLoadRegOpcode(RC); @@ -1273,6 +1273,20 @@ X86RegisterInfo::unfoldMemoryOperand(SelectionDAG &DAG, SDNode *N, return true; } +unsigned X86RegisterInfo::getOpcodeAfterMemoryUnfold(unsigned Opc, + bool UnfoldLoad, bool UnfoldStore) const { + DenseMap<unsigned*, std::pair<unsigned,unsigned> >::iterator I = + MemOp2RegOpTable.find((unsigned*)Opc); + if (I == MemOp2RegOpTable.end()) + return 0; + bool HasLoad = I->second.second & (1 << 4); + bool HasStore = I->second.second & (1 << 5); + if (UnfoldLoad && !HasLoad) + return 0; + if (UnfoldStore && !HasStore) + return 0; + return I->second.first; +} const unsigned * X86RegisterInfo::getCalleeSavedRegs(const MachineFunction *MF) const { |
