diff options
| -rw-r--r-- | llvm/include/llvm/CodeGen/SelectionDAGNodes.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/llvm/include/llvm/CodeGen/SelectionDAGNodes.h b/llvm/include/llvm/CodeGen/SelectionDAGNodes.h index e562ffcefd7..4bf37b631bd 100644 --- a/llvm/include/llvm/CodeGen/SelectionDAGNodes.h +++ b/llvm/include/llvm/CodeGen/SelectionDAGNodes.h @@ -488,6 +488,17 @@ protected: // SubclassData. These are designed to fit within a uint16_t so they pack // with NodeType. +#if defined(_AIX) && (!defined(__GNUC__) || defined(__ibmxl__)) +// Except for GCC; by default, AIX compilers store bit-fields in 4-byte words +// and give the `pack` pragma push semantics. +#define BEGIN_TWO_BYTE_PACK() _Pragma("pack(2)") +#define END_TWO_BYTE_PACK() _Pragma("pack(pop)") +#else +#define BEGIN_TWO_BYTE_PACK() +#define END_TWO_BYTE_PACK() +#endif + +BEGIN_TWO_BYTE_PACK() class SDNodeBitfields { friend class SDNode; friend class MemIntrinsicSDNode; @@ -560,6 +571,9 @@ protected: LoadSDNodeBitfields LoadSDNodeBits; StoreSDNodeBitfields StoreSDNodeBits; }; +END_TWO_BYTE_PACK() +#undef BEGIN_TWO_BYTE_PACK +#undef END_TWO_BYTE_PACK // RawSDNodeBits must cover the entirety of the union. This means that all of // the union's members must have size <= RawSDNodeBits. We write the RHS as |
