diff options
Diffstat (limited to 'lib/MC')
| -rw-r--r-- | lib/MC/MCRegisterInfo.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/MC/MCRegisterInfo.cpp b/lib/MC/MCRegisterInfo.cpp index 4d1aff3..5c71106 100644 --- a/lib/MC/MCRegisterInfo.cpp +++ b/lib/MC/MCRegisterInfo.cpp @@ -24,6 +24,8 @@ unsigned MCRegisterInfo::getMatchingSuperReg(unsigned Reg, unsigned SubIdx, } unsigned MCRegisterInfo::getSubReg(unsigned Reg, unsigned Idx) const { + assert(Idx && Idx < getNumSubRegIndices() && + "This is not a subregister index"); // Get a pointer to the corresponding SubRegIndices list. This list has the // name of each sub-register in the same order as MCSubRegIterator. const uint16_t *SRI = SubRegIndices + get(Reg).SubRegIndices; @@ -34,6 +36,7 @@ unsigned MCRegisterInfo::getSubReg(unsigned Reg, unsigned Idx) const { } unsigned MCRegisterInfo::getSubRegIndex(unsigned Reg, unsigned SubReg) const { + assert(SubReg && SubReg < getNumRegs() && "This is not a register"); // Get a pointer to the corresponding SubRegIndices list. This list has the // name of each sub-register in the same order as MCSubRegIterator. const uint16_t *SRI = SubRegIndices + get(Reg).SubRegIndices; |