diff options
| -rw-r--r-- | include/llvm/CodeGen/MachineInstr.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/include/llvm/CodeGen/MachineInstr.h b/include/llvm/CodeGen/MachineInstr.h index 833a4a13e6..f3aea0c679 100644 --- a/include/llvm/CodeGen/MachineInstr.h +++ b/include/llvm/CodeGen/MachineInstr.h @@ -10,6 +10,7 @@ #define LLVM_CODEGEN_MACHINEINSTR_H #include "llvm/Annotation.h" +#include "llvm/Target/MRegisterInfo.h" #include "Support/iterator" #include "Support/NonCopyable.h" #include <vector> @@ -152,6 +153,19 @@ public: // MachineOperandType getType() const { return opType; } + + // This is to finally stop caring whether we have a virtual or machine + // register -- an easier interface is to simply call both virtual and machine + // registers essentially the same, yet be able to distinguish when + // necessary. Thus the instruction selector can just add registers without + // abandon, and the register allocator won't be confused. + bool isVirtualRegister() const { + return (opType == MO_VirtualRegister || opType == MO_MachineRegister) + && regNum >= MRegisterInfo::FirstVirtualRegister; + } + + bool isMachineRegister() const { return !isVirtualRegister(); } + inline Value* getVRegValue () const { assert(opType == MO_VirtualRegister || opType == MO_CCRegister || opType == MO_PCRelativeDisp); |