diff options
Diffstat (limited to 'lib/CodeGen/MachineRegisterInfo.cpp')
| -rw-r--r-- | lib/CodeGen/MachineRegisterInfo.cpp | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/lib/CodeGen/MachineRegisterInfo.cpp b/lib/CodeGen/MachineRegisterInfo.cpp index ef794d5ae3..4a150435ce 100644 --- a/lib/CodeGen/MachineRegisterInfo.cpp +++ b/lib/CodeGen/MachineRegisterInfo.cpp @@ -267,6 +267,15 @@ MachineRegisterInfo::EmitLiveInCopies(MachineBasicBlock *EntryMBB, EntryMBB->addLiveIn(I->first); } +void MachineRegisterInfo::closePhysRegsUsed(const TargetRegisterInfo &TRI) { + for (int i = UsedPhysRegs.find_first(); i >= 0; + i = UsedPhysRegs.find_next(i)) + for (const unsigned *SS = TRI.getSubRegisters(i); + unsigned SubReg = *SS; ++SS) + if (SubReg > i) + UsedPhysRegs.set(SubReg); +} + #ifndef NDEBUG void MachineRegisterInfo::dumpUses(unsigned Reg) const { for (use_iterator I = use_begin(Reg), E = use_end(); I != E; ++I) |