diff options
Diffstat (limited to 'include/llvm/CodeGen/MachineInstr.h')
| -rw-r--r-- | include/llvm/CodeGen/MachineInstr.h | 29 |
1 files changed, 24 insertions, 5 deletions
diff --git a/include/llvm/CodeGen/MachineInstr.h b/include/llvm/CodeGen/MachineInstr.h index bac93e5d3a4c..e7e728c1be28 100644 --- a/include/llvm/CodeGen/MachineInstr.h +++ b/include/llvm/CodeGen/MachineInstr.h @@ -1108,6 +1108,18 @@ public: /// the instruction's location and its intended destination. bool isSafeToMove(AliasAnalysis *AA, bool &SawStore) const; + /// Returns true if this instruction's memory access aliases the memory + /// access of Other. + // + /// Assumes any physical registers used to compute addresses + /// have the same value for both instructions. Returns false if neither + /// instruction writes to memory. + /// + /// @param AA Optional alias analysis, used to compare memory operands. + /// @param Other MachineInstr to check aliasing against. + /// @param UseTBAA Whether to pass TBAA information to alias analysis. + bool mayAlias(AliasAnalysis *AA, MachineInstr &Other, bool UseTBAA); + /// Return true if this instruction may have an ordered /// or volatile memory reference, or if the information describing the memory /// reference is not available. Return false if it is known to have no @@ -1146,14 +1158,21 @@ public: /// instruction to this instruction. void copyImplicitOps(MachineFunction &MF, const MachineInstr &MI); - // - // Debugging support - // - void print(raw_ostream &OS, bool SkipOpers = false, + /// Debugging support + /// @{ + /// Print this MI to \p OS. + /// Only print the defs and the opcode if \p SkipOpers is true. + /// Otherwise, also print operands if \p SkipDebugLoc is true. + /// Otherwise, also print the debug loc, with a terminating newline. + /// \p TII is used to print the opcode name. If it's not present, but the + /// MI is in a function, the opcode will be printed using the function's TII. + void print(raw_ostream &OS, bool SkipOpers = false, bool SkipDebugLoc = false, const TargetInstrInfo *TII = nullptr) const; void print(raw_ostream &OS, ModuleSlotTracker &MST, bool SkipOpers = false, + bool SkipDebugLoc = false, const TargetInstrInfo *TII = nullptr) const; - void dump(const TargetInstrInfo *TII = nullptr) const; + void dump() const; + /// @} //===--------------------------------------------------------------------===// // Accessors used to build up machine instructions. |