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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2011-01-08 23:10:57 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2011-01-08 23:10:57 +0000 |
| commit | b421c566f512ed0ec87851866d335e9086c3f8be (patch) | |
| tree | ba001da8c2c2f846ad33823f32ae45426e0b9f1d /include/llvm/CodeGen/MachineRegisterInfo.h | |
| parent | 56e4d89642d0850f6392a90136848b3647abed97 (diff) | |
| download | external_llvm-b421c566f512ed0ec87851866d335e9086c3f8be.zip external_llvm-b421c566f512ed0ec87851866d335e9086c3f8be.tar.gz external_llvm-b421c566f512ed0ec87851866d335e9086c3f8be.tar.bz2 | |
Use an IndexedMap for LiveVariables::VirtRegInfo.
Provide MRI::getNumVirtRegs() and TRI::index2VirtReg() functions to allow
iteration over virtual registers without depending on the representation of
virtual register numbers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123098 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'include/llvm/CodeGen/MachineRegisterInfo.h')
| -rw-r--r-- | include/llvm/CodeGen/MachineRegisterInfo.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/include/llvm/CodeGen/MachineRegisterInfo.h b/include/llvm/CodeGen/MachineRegisterInfo.h index ddba61b..20f8bc8 100644 --- a/include/llvm/CodeGen/MachineRegisterInfo.h +++ b/include/llvm/CodeGen/MachineRegisterInfo.h @@ -216,10 +216,14 @@ public: /// unsigned createVirtualRegister(const TargetRegisterClass *RegClass); + /// getNumVirtRegs - Return the number of virtual registers created. + /// + unsigned getNumVirtRegs() const { return VRegInfo.size(); } + /// getLastVirtReg - Return the highest currently assigned virtual register. /// unsigned getLastVirtReg() const { - return (unsigned)VRegInfo.size()+TargetRegisterInfo::FirstVirtualRegister-1; + return TargetRegisterInfo::index2VirtReg(getNumVirtRegs() - 1); } /// getRegClassVirtRegs - Return the list of virtual registers of the given |