[SystemZ] Use CLC and IPM to implement memcmp

[oota-llvm.git] / lib / Target / SystemZ / SystemZISelLowering.h

diff --git a/lib/Target/SystemZ/SystemZISelLowering.h b/lib/Target/SystemZ/SystemZISelLowering.h
index 88e1fa7d7463f95e99a0c759e71779a22bf4dc08..0036ce84aa7ba938ffe6056e2bff58e21f1cca6e 100644 (file)
--- a/lib/Target/SystemZ/SystemZISelLowering.h
+++ b/lib/Target/SystemZ/SystemZISelLowering.h
@@ -80,6 +80,13 @@ namespace SystemZISD {
     // MachineMemOperands rather than one.
     MVC,
 
+    // Use CLC to compare two blocks of memory, with the same comments
+    // as for MVC.
+    CLC,
+
+    // Store the CC value in bits 29 and 28 of an integer.
+    IPM,
+
     // Wrappers around the inner loop of an 8- or 16-bit ATOMIC_SWAP or
     // ATOMIC_LOAD_<op>.
     //
@@ -126,12 +133,15 @@ public:
   virtual MVT getScalarShiftAmountTy(EVT LHSTy) const LLVM_OVERRIDE {
     return MVT::i32;
   }
-  virtual EVT getSetCCResultType(LLVMContext &, EVT) const {
+  virtual EVT getSetCCResultType(LLVMContext &, EVT) const LLVM_OVERRIDE {
     return MVT::i32;
   }
   virtual bool isFMAFasterThanFMulAndFAdd(EVT VT) const LLVM_OVERRIDE;
-  virtual bool isFPImmLegal(const APFloat &Imm, EVT VT) const;
-  virtual bool allowsUnalignedMemoryAccesses(EVT VT, bool *Fast) const;
+  virtual bool isFPImmLegal(const APFloat &Imm, EVT VT) const LLVM_OVERRIDE;
+  virtual bool isLegalAddressingMode(const AddrMode &AM, Type *Ty) const
+     LLVM_OVERRIDE;
+  virtual bool allowsUnalignedMemoryAccesses(EVT VT, bool *Fast) const
+    LLVM_OVERRIDE;
   virtual const char *getTargetNodeName(unsigned Opcode) const LLVM_OVERRIDE;
   virtual std::pair<unsigned, const TargetRegisterClass *>
     getRegForInlineAsmConstraint(const std::string &Constraint,
@@ -211,7 +221,8 @@ private:
                                 MachineBasicBlock *BB) const;
   MachineBasicBlock *emitCondStore(MachineInstr *MI,
                                    MachineBasicBlock *BB,
-                                   unsigned StoreOpcode, bool Invert) const;
+                                   unsigned StoreOpcode, unsigned STOCOpcode,
+                                   bool Invert) const;
   MachineBasicBlock *emitExt128(MachineInstr *MI,
                                 MachineBasicBlock *MBB,
                                 bool ClearEven, unsigned SubReg) const;
@@ -226,8 +237,9 @@ private:
                                           unsigned BitSize) const;
   MachineBasicBlock *emitAtomicCmpSwapW(MachineInstr *MI,
                                         MachineBasicBlock *BB) const;
-  MachineBasicBlock *emitMVCWrapper(MachineInstr *MI,
-                                    MachineBasicBlock *BB) const;
+  MachineBasicBlock *emitMemMemWrapper(MachineInstr *MI,
+                                       MachineBasicBlock *BB,
+                                       unsigned Opcode) const;
 };
 } // end namespace llvm