diff options
Diffstat (limited to 'utils/TableGen/CodeGenRegisters.cpp')
| -rw-r--r-- | utils/TableGen/CodeGenRegisters.cpp | 20 |
1 files changed, 14 insertions, 6 deletions
diff --git a/utils/TableGen/CodeGenRegisters.cpp b/utils/TableGen/CodeGenRegisters.cpp index b731544616..8de4615279 100644 --- a/utils/TableGen/CodeGenRegisters.cpp +++ b/utils/TableGen/CodeGenRegisters.cpp @@ -768,23 +768,31 @@ void CodeGenRegBank::computeInferredRegisterClasses() { // Find matching classes for all SRSets entries. Iterate in SubRegIndex // numerical order to visit synthetic indices last. for (unsigned sri = 0, sre = SubRegIndices.size(); sri != sre; ++sri) { - SubReg2SetMap::const_iterator I = SRSets.find(SubRegIndices[sri]); + Record *SubIdx = SubRegIndices[sri]; + SubReg2SetMap::const_iterator I = SRSets.find(SubIdx); // Unsupported SubRegIndex. Skip it. if (I == SRSets.end()) continue; - // In most cases, all RC registers support the SubRegIndex. Skip those. - if (I->second.size() == RC.getMembers().size()) + // In most cases, all RC registers support the SubRegIndex. + if (I->second.size() == RC.getMembers().size()) { + RC.setSubClassWithSubReg(SubIdx, &RC); continue; + } // This is a real subset. See if we have a matching class. CodeGenRegisterClass::Key K(&I->second, RC.SpillSize, RC.SpillAlignment); RCKeyMap::const_iterator FoundI = Key2RC.find(K); - if (FoundI != Key2RC.end()) + if (FoundI != Key2RC.end()) { + RC.setSubClassWithSubReg(SubIdx, FoundI->second); continue; + } // Class doesn't exist. - addToMaps(new CodeGenRegisterClass(RC.getName() + "_with_" + - I->first->getName(), K)); + CodeGenRegisterClass *NewRC = + new CodeGenRegisterClass(RC.getName() + "_with_" + + I->first->getName(), K); + addToMaps(NewRC); + RC.setSubClassWithSubReg(SubIdx, NewRC); } } } |