diff options
Diffstat (limited to 'utils/TableGen/CodeGenRegisters.h')
-rw-r--r-- | utils/TableGen/CodeGenRegisters.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/utils/TableGen/CodeGenRegisters.h b/utils/TableGen/CodeGenRegisters.h index ba62db4..c834551 100644 --- a/utils/TableGen/CodeGenRegisters.h +++ b/utils/TableGen/CodeGenRegisters.h @@ -37,6 +37,8 @@ namespace llvm { Record *const TheDef; std::string Name; std::string Namespace; + uint16_t Size; + uint16_t Offset; public: const unsigned EnumValue; @@ -52,6 +54,8 @@ namespace llvm { const std::string &getName() const { return Name; } const std::string &getNamespace() const { return Namespace; } std::string getQualifiedName() const; + uint16_t getSize() const { return Size; } + uint16_t getOffset() const { return Offset; } // Order CodeGenSubRegIndex pointers by EnumValue. struct Less { @@ -79,6 +83,15 @@ namespace llvm { assert(A && B); std::pair<CompMap::iterator, bool> Ins = Composed.insert(std::make_pair(A, B)); + // Synthetic subreg indices that aren't contiguous (for instance ARM + // register tuples) don't have a bit range, so it's OK to let + // B->Offset == -1. For the other cases, accumulate the offset and set + // the size here. Only do so if there is no offset yet though. + if ((Offset != (uint16_t)-1 && A->Offset != (uint16_t)-1) && + (B->Offset == (uint16_t)-1)) { + B->Offset = Offset + A->Offset; + B->Size = A->Size; + } return (Ins.second || Ins.first->second == B) ? 0 : Ins.first->second; } |