diff options
| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2012-02-17 19:07:56 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2012-02-17 19:07:56 +0000 |
| commit | d9f0ff56a1878347fe5a0f162ef8c2ef2b63aeb5 (patch) | |
| tree | 75dda73c9862f8c73eb74083958cc2e11be718f3 /lib/CodeGen/MachineRegisterInfo.cpp | |
| parent | dbe266be35cfee0fbda5523ac578fef81e8fdfcc (diff) | |
Transfer regmasks to MRI.
MRI keeps track of which physregs have been used. Make sure it gets
updated with all the regmask-clobbered registers.
Delete the closePhysRegsUsed() function which isn't necessary.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150830 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/MachineRegisterInfo.cpp')
| -rw-r--r-- | lib/CodeGen/MachineRegisterInfo.cpp | 12 |
1 files changed, 2 insertions, 10 deletions
diff --git a/lib/CodeGen/MachineRegisterInfo.cpp b/lib/CodeGen/MachineRegisterInfo.cpp index 6ec55247bf..08bf1ae910 100644 --- a/lib/CodeGen/MachineRegisterInfo.cpp +++ b/lib/CodeGen/MachineRegisterInfo.cpp @@ -22,7 +22,8 @@ MachineRegisterInfo::MachineRegisterInfo(const TargetRegisterInfo &TRI) VRegInfo.reserve(256); RegAllocHints.reserve(256); UsedPhysRegs.resize(TRI.getNumRegs()); - + UsedPhysRegMask.resize(TRI.getNumRegs()); + // Create the physreg use/def lists. PhysRegUseDefLists = new MachineOperand*[TRI.getNumRegs()]; memset(PhysRegUseDefLists, 0, sizeof(MachineOperand*)*TRI.getNumRegs()); @@ -244,15 +245,6 @@ MachineRegisterInfo::EmitLiveInCopies(MachineBasicBlock *EntryMBB, } } -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 > unsigned(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) |