diff options
Diffstat (limited to 'include/llvm/CodeGen/MachineInstr.h')
| -rw-r--r-- | include/llvm/CodeGen/MachineInstr.h | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/include/llvm/CodeGen/MachineInstr.h b/include/llvm/CodeGen/MachineInstr.h index 3c7b213533..76738e28c2 100644 --- a/include/llvm/CodeGen/MachineInstr.h +++ b/include/llvm/CodeGen/MachineInstr.h @@ -43,6 +43,10 @@ class MachineMemOperand; //===----------------------------------------------------------------------===// /// MachineInstr - Representation of each machine instruction. /// +/// This class isn't a POD type, but it must have a trivial destructor. When a +/// MachineFunction is deleted, all the contained MachineInstrs are deallocated +/// without having their destructor called. +/// class MachineInstr : public ilist_node<MachineInstr> { public: typedef MachineMemOperand **mmo_iterator; @@ -90,6 +94,8 @@ private: MachineInstr(const MachineInstr&) LLVM_DELETED_FUNCTION; void operator=(const MachineInstr&) LLVM_DELETED_FUNCTION; + // Use MachineFunction::DeleteMachineInstr() instead. + ~MachineInstr() LLVM_DELETED_FUNCTION; // Intrusive list support friend struct ilist_traits<MachineInstr>; @@ -106,8 +112,6 @@ private: MachineInstr(MachineFunction&, const MCInstrDesc &MCID, const DebugLoc dl, bool NoImp = false); - ~MachineInstr(); - // MachineInstrs are pool-allocated and owned by MachineFunction. friend class MachineFunction; |