diff options
| -rw-r--r-- | include/llvm/MC/MCRegisterInfo.h | 10 | ||||
| -rw-r--r-- | include/llvm/Target/TargetRegisterInfo.h | 5 |
2 files changed, 11 insertions, 4 deletions
diff --git a/include/llvm/MC/MCRegisterInfo.h b/include/llvm/MC/MCRegisterInfo.h index ddf355e..2e5968d 100644 --- a/include/llvm/MC/MCRegisterInfo.h +++ b/include/llvm/MC/MCRegisterInfo.h @@ -248,6 +248,16 @@ public: return *(SubRegIndices + (Reg - 1) * NumSubRegIndices + Idx - 1); } + /// getMatchingSuperReg - Return a super-register of the specified register + /// Reg so its sub-register of index SubIdx is Reg. + unsigned getMatchingSuperReg(unsigned Reg, unsigned SubIdx, + const MCRegisterClass *RC) const { + for (const unsigned *SRs = getSuperRegisters(Reg); unsigned SR = *SRs;++SRs) + if (Reg == getSubReg(SR, SubIdx) && RC->contains(SR)) + return SR; + return 0; + } + /// getSubRegIndex - For a given register pair, return the sub-register index /// if the second register is a sub-register of the first. Return zero /// otherwise. diff --git a/include/llvm/Target/TargetRegisterInfo.h b/include/llvm/Target/TargetRegisterInfo.h index 0cef350..c6e3086 100644 --- a/include/llvm/Target/TargetRegisterInfo.h +++ b/include/llvm/Target/TargetRegisterInfo.h @@ -387,10 +387,7 @@ public: /// Reg so its sub-register of index SubIdx is Reg. unsigned getMatchingSuperReg(unsigned Reg, unsigned SubIdx, const TargetRegisterClass *RC) const { - for (const uint16_t *SRs = getSuperRegisters(Reg); unsigned SR = *SRs;++SRs) - if (Reg == getSubReg(SR, SubIdx) && RC->contains(SR)) - return SR; - return 0; + return MCRegisterInfo::getMatchingSuperReg(Reg, SubIdx, RC->MC); } /// canCombineSubRegIndices - Given a register class and a list of |