diff options
| -rw-r--r-- | include/llvm/Target/MRegisterInfo.h | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/include/llvm/Target/MRegisterInfo.h b/include/llvm/Target/MRegisterInfo.h index 79a2a86713..1e118c1505 100644 --- a/include/llvm/Target/MRegisterInfo.h +++ b/include/llvm/Target/MRegisterInfo.h @@ -40,11 +40,15 @@ class Type; /// Registers that this does not apply to simply should set this to null. /// The SubRegs field is a zero terminated array of registers that are /// sub-registers of the specific register, e.g. AL, AH are sub-registers of AX. +/// The SuperRegs field is a zero terminated array of registers that are +/// super-registers of the specific register, e.g. RAX, EAX, are sub-registers +/// of AX. /// struct TargetRegisterDesc { const char *Name; // Assembly language name for the register const unsigned *AliasSet; // Register Alias Set, described above const unsigned *SubRegs; // Sub-register set, described above + const unsigned *SuperRegs; // Super-register set, described above }; class TargetRegisterClass { @@ -271,13 +275,21 @@ public: } /// getSubRegisters - Return the set of registers that are sub-registers of - // the specified register, or a null list of there are none. The list + /// the specified register, or a null list of there are none. The list /// returned is zero terminated. /// const unsigned *getSubRegisters(unsigned RegNo) const { return get(RegNo).SubRegs; } + /// getSuperRegisters - Return the set of registers that are super-registers + /// of the specified register, or a null list of there are none. The list + /// returned is zero terminated. + /// + const unsigned *getSuperRegisters(unsigned RegNo) const { + return get(RegNo).SuperRegs; + } + /// getName - Return the symbolic target specific name for the specified /// physical register. const char *getName(unsigned RegNo) const { |