diff options
| -rw-r--r-- | include/llvm/Target/MachineInstrInfo.h | 6 | ||||
| -rw-r--r-- | include/llvm/Target/TargetInstrInfo.h | 6 |
2 files changed, 10 insertions, 2 deletions
diff --git a/include/llvm/Target/MachineInstrInfo.h b/include/llvm/Target/MachineInstrInfo.h index a453b4007c..f4a6a7714c 100644 --- a/include/llvm/Target/MachineInstrInfo.h +++ b/include/llvm/Target/MachineInstrInfo.h @@ -54,7 +54,8 @@ const unsigned M_PREFETCH_FLAG = 1 << 11; const unsigned M_STORE_FLAG = 1 << 12; const unsigned M_DUMMY_PHI_FLAG = 1 << 13; const unsigned M_PSEUDO_FLAG = 1 << 14; - +// 3-addr instructions which really work like 2-addr ones, eg. X86 add/sub +const unsigned M_2_ADDR_FLAG = 1 << 15; struct MachineInstrDescriptor { const char * Name; // Assembly language mnemonic for the opcode. @@ -186,6 +187,9 @@ public: bool isPseudoInstr(const MachineOpCode opCode) const { return get(opCode).Flags & M_PSEUDO_FLAG; } + bool isTwoAddrInstr(const MachineOpCode opCode) const { + return get(opCode).Flags & M_2_ADDR_FLAG; + } // Check if an instruction can be issued before its operands are ready, // or if a subsequent instruction that uses its result can be issued diff --git a/include/llvm/Target/TargetInstrInfo.h b/include/llvm/Target/TargetInstrInfo.h index a453b4007c..f4a6a7714c 100644 --- a/include/llvm/Target/TargetInstrInfo.h +++ b/include/llvm/Target/TargetInstrInfo.h @@ -54,7 +54,8 @@ const unsigned M_PREFETCH_FLAG = 1 << 11; const unsigned M_STORE_FLAG = 1 << 12; const unsigned M_DUMMY_PHI_FLAG = 1 << 13; const unsigned M_PSEUDO_FLAG = 1 << 14; - +// 3-addr instructions which really work like 2-addr ones, eg. X86 add/sub +const unsigned M_2_ADDR_FLAG = 1 << 15; struct MachineInstrDescriptor { const char * Name; // Assembly language mnemonic for the opcode. @@ -186,6 +187,9 @@ public: bool isPseudoInstr(const MachineOpCode opCode) const { return get(opCode).Flags & M_PSEUDO_FLAG; } + bool isTwoAddrInstr(const MachineOpCode opCode) const { + return get(opCode).Flags & M_2_ADDR_FLAG; + } // Check if an instruction can be issued before its operands are ready, // or if a subsequent instruction that uses its result can be issued |