diff options
Diffstat (limited to 'llvm/lib/CodeGen/DeadMachineInstructionElim.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/DeadMachineInstructionElim.cpp | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/llvm/lib/CodeGen/DeadMachineInstructionElim.cpp b/llvm/lib/CodeGen/DeadMachineInstructionElim.cpp index c6c0b79cd7e7..0bb186a02416 100644 --- a/llvm/lib/CodeGen/DeadMachineInstructionElim.cpp +++ b/llvm/lib/CodeGen/DeadMachineInstructionElim.cpp @@ -76,8 +76,7 @@ bool DeadMachineInstructionElim::isDead(const MachineInstr *MI) const { return false; // Examine each operand. - for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) { - const MachineOperand &MO = MI->getOperand(i); + for (const MachineOperand &MO : MI->operands()) { if (MO.isReg() && MO.isDef()) { Register Reg = MO.getReg(); if (Register::isPhysicalRegister(Reg)) { @@ -87,7 +86,7 @@ bool DeadMachineInstructionElim::isDead(const MachineInstr *MI) const { } else { if (MO.isDead()) { #ifndef NDEBUG - // Sanity check on uses of this dead register. All of them should be + // Baisc check on the register. All of them should be // 'undef'. for (auto &U : MRI->use_nodbg_operands(Reg)) assert(U.isUndef() && "'Undef' use on a 'dead' register is found!"); @@ -152,8 +151,7 @@ bool DeadMachineInstructionElim::eliminateDeadMI(MachineFunction &MF) { } // Record the physreg defs. - for (unsigned i = 0, e = MI.getNumOperands(); i != e; ++i) { - const MachineOperand &MO = MI.getOperand(i); + for (const MachineOperand &MO : MI.operands()) { if (MO.isReg() && MO.isDef()) { Register Reg = MO.getReg(); if (Register::isPhysicalRegister(Reg)) { @@ -171,8 +169,7 @@ bool DeadMachineInstructionElim::eliminateDeadMI(MachineFunction &MF) { } // Record the physreg uses, after the defs, in case a physreg is // both defined and used in the same instruction. - for (unsigned i = 0, e = MI.getNumOperands(); i != e; ++i) { - const MachineOperand &MO = MI.getOperand(i); + for (const MachineOperand &MO : MI.operands()) { if (MO.isReg() && MO.isUse()) { Register Reg = MO.getReg(); if (Register::isPhysicalRegister(Reg)) { |