diff options
Diffstat (limited to 'lib/CodeGen/RegAllocLocal.cpp')
| -rw-r--r-- | lib/CodeGen/RegAllocLocal.cpp | 14 |
1 files changed, 2 insertions, 12 deletions
diff --git a/lib/CodeGen/RegAllocLocal.cpp b/lib/CodeGen/RegAllocLocal.cpp index f20708681b..398fc97307 100644 --- a/lib/CodeGen/RegAllocLocal.cpp +++ b/lib/CodeGen/RegAllocLocal.cpp @@ -843,18 +843,8 @@ void RALocal::AllocateBasicBlock(MachineBasicBlock &MBB) { SmallVector<unsigned, 8> Kills; for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) { MachineOperand &MO = MI->getOperand(i); - if (!MO.isReg()) continue; - unsigned Reg = MO.getReg(); - if (!Reg) continue; - - // Avoid allocating assigned early clobbers below. - if (MO.isEarlyClobber() && TargetRegisterInfo::isPhysicalRegister(Reg)) { - spillPhysReg(MBB, MI, Reg, true); // Spill any existing value in reg - PhysRegsUsed[Reg] = 0; // It is free and reserved now - AddToPhysRegsUseOrder(Reg); - } - - if (!MO.isKill()) continue; + if (!MO.isReg() || !MO.isKill()) continue; + if (!MO.isImplicit()) Kills.push_back(MO.getReg()); else if (!isReadModWriteImplicitKill(MI, MO.getReg())) |