diff options
| -rw-r--r-- | include/llvm/CodeGen/SSARegMap.h | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/include/llvm/CodeGen/SSARegMap.h b/include/llvm/CodeGen/SSARegMap.h index c31911c91b..65c0cce732 100644 --- a/include/llvm/CodeGen/SSARegMap.h +++ b/include/llvm/CodeGen/SSARegMap.h @@ -1,17 +1,17 @@ //===-- llvm/CodeGen/SSARegMap.h --------------------------------*- C++ -*-===// -// +// // The LLVM Compiler Infrastructure // // This file was developed by the LLVM research group and is distributed under // the University of Illinois Open Source License. See LICENSE.TXT for details. -// +// //===----------------------------------------------------------------------===// -// +// // Map register numbers to register classes that are correctly sized (typed) to // hold the information. Assists register allocation. Contained by // MachineFunction, should be deleted by register allocator when it is no // longer needed. -// +// //===----------------------------------------------------------------------===// #ifndef LLVM_CODEGEN_SSAREGMAP_H @@ -26,7 +26,7 @@ class TargetRegisterClass; class SSARegMap { std::vector<const TargetRegisterClass*> RegClassMap; - unsigned rescale(unsigned Reg) { + unsigned rescale(unsigned Reg) { return Reg - MRegisterInfo::FirstVirtualRegister; } @@ -44,6 +44,10 @@ class SSARegMap { RegClassMap.push_back(RegClass); return RegClassMap.size()+MRegisterInfo::FirstVirtualRegister-1; } + + unsigned getNumVirtualRegs() const { + return RegClassMap.size(); + } }; } // End llvm namespace |