Add a bool flag to StackObjects telling whether they reference spill

[oota-llvm.git] / lib / Target / CellSPU / SPUISelLowering.h

diff --git a/lib/Target/CellSPU/SPUISelLowering.h b/lib/Target/CellSPU/SPUISelLowering.h
index 24b8f82ecbe9b192d5f4382be9ef8a58e526e031..ab349bb7851f8b1047a4977401554bc8a9650fc4 100644 (file)
--- a/lib/Target/CellSPU/SPUISelLowering.h
+++ b/lib/Target/CellSPU/SPUISelLowering.h
@@ -43,37 +43,41 @@ namespace llvm {
       VEC2PREFSLOT,             ///< Extract element 0
       SHLQUAD_L_BITS,           ///< Rotate quad left, by bits
       SHLQUAD_L_BYTES,          ///< Rotate quad left, by bytes
-      VEC_SHL,                  ///< Vector shift left
-      VEC_SRL,                  ///< Vector shift right (logical)
-      VEC_SRA,                  ///< Vector shift right (arithmetic)
       VEC_ROTL,                 ///< Vector rotate left
       VEC_ROTR,                 ///< Vector rotate right
       ROTBYTES_LEFT,            ///< Rotate bytes (loads -> ROTQBYI)
       ROTBYTES_LEFT_BITS,       ///< Rotate bytes left by bit shift count
       SELECT_MASK,              ///< Select Mask (FSM, FSMB, FSMH, FSMBI)
       SELB,                     ///< Select bits -> (b & mask) | (a & ~mask)
-      ADD_EXTENDED,             ///< Add extended, with carry
-      CARRY_GENERATE,           ///< Carry generate for ADD_EXTENDED
-      SUB_EXTENDED,             ///< Subtract extended, with borrow
-      BORROW_GENERATE,          ///< Borrow generate for SUB_EXTENDED
+      // Markers: These aren't used to generate target-dependent nodes, but
+      // are used during instruction selection.
+      ADD64_MARKER,             ///< i64 addition marker
+      SUB64_MARKER,             ///< i64 subtraction marker
+      MUL64_MARKER,             ///< i64 multiply marker
       LAST_SPUISD               ///< Last user-defined instruction
     };
   }
 
-  /// Predicates that are used for node matching:
+  //! Utility functions specific to CellSPU:
   namespace SPU {
     SDValue get_vec_u18imm(SDNode *N, SelectionDAG &DAG,
-                             MVT ValueType);
+                             EVT ValueType);
     SDValue get_vec_i16imm(SDNode *N, SelectionDAG &DAG,
-                             MVT ValueType);
+                             EVT ValueType);
     SDValue get_vec_i10imm(SDNode *N, SelectionDAG &DAG,
-                             MVT ValueType);
+                             EVT ValueType);
     SDValue get_vec_i8imm(SDNode *N, SelectionDAG &DAG,
-                            MVT ValueType);
+                            EVT ValueType);
     SDValue get_ILHUvec_imm(SDNode *N, SelectionDAG &DAG,
-                              MVT ValueType);
+                              EVT ValueType);
     SDValue get_v4i32_imm(SDNode *N, SelectionDAG &DAG);
     SDValue get_v2i64_imm(SDNode *N, SelectionDAG &DAG);
+
+    SDValue LowerConstantPool(SDValue Op, SelectionDAG &DAG,
+                              const SPUTargetMachine &TM);
+    //! Simplify a EVT::v2i64 constant splat to CellSPU-ready form
+    SDValue LowerV2I64Splat(EVT OpVT, SelectionDAG &DAG, uint64_t splat,
+                             DebugLoc dl);
   }
 
   class SPUTargetMachine;            // forward dec'l.
@@ -82,18 +86,27 @@ namespace llvm {
     public TargetLowering
   {
     int VarArgsFrameIndex;            // FrameIndex for start of varargs area.
-    int ReturnAddrIndex;              // FrameIndex for return slot.
     SPUTargetMachine &SPUTM;
 
   public:
+    //! The venerable constructor
+    /*!
+     This is where the CellSPU backend sets operation handling (i.e., legal,
+     custom, expand or promote.)
+     */
     SPUTargetLowering(SPUTargetMachine &TM);
 
+    //! Get the target machine
+    SPUTargetMachine &getSPUTargetMachine() {
+      return SPUTM;
+    }
+
     /// getTargetNodeName() - This method returns the name of a target specific
     /// DAG node.
     virtual const char *getTargetNodeName(unsigned Opcode) const;
 
     /// getSetCCResultType - Return the ValueType for ISD::SETCC
-    virtual MVT getSetCCResultType(MVT VT) const;
+    virtual MVT::SimpleValueType getSetCCResultType(EVT VT) const;
 
     //! Custom lowering hooks
     virtual SDValue LowerOperation(SDValue Op, SelectionDAG &DAG);
@@ -118,7 +131,7 @@ namespace llvm {
 
     std::pair<unsigned, const TargetRegisterClass*>
       getRegForInlineAsmConstraint(const std::string &Constraint,
-                                   MVT VT) const;
+                                   EVT VT) const;
 
     void LowerAsmOperandForConstraint(SDValue Op, char ConstraintLetter,
                                       bool hasMemory,
@@ -131,6 +144,31 @@ namespace llvm {
     virtual bool isLegalAddressImmediate(GlobalValue *) const;
 
     virtual bool isOffsetFoldingLegal(const GlobalAddressSDNode *GA) const;
+
+    /// getFunctionAlignment - Return the Log2 alignment of this function.
+    virtual unsigned getFunctionAlignment(const Function *F) const;
+
+    virtual SDValue
+      LowerFormalArguments(SDValue Chain,
+                           CallingConv::ID CallConv, bool isVarArg,
+                           const SmallVectorImpl<ISD::InputArg> &Ins,
+                           DebugLoc dl, SelectionDAG &DAG,
+                           SmallVectorImpl<SDValue> &InVals);
+
+    virtual SDValue
+      LowerCall(SDValue Chain, SDValue Callee,
+                CallingConv::ID CallConv, bool isVarArg,
+                bool isTailCall,
+                const SmallVectorImpl<ISD::OutputArg> &Outs,
+                const SmallVectorImpl<ISD::InputArg> &Ins,
+                DebugLoc dl, SelectionDAG &DAG,
+                SmallVectorImpl<SDValue> &InVals);
+
+    virtual SDValue
+      LowerReturn(SDValue Chain,
+                  CallingConv::ID CallConv, bool isVarArg,
+                  const SmallVectorImpl<ISD::OutputArg> &Outs,
+                  DebugLoc dl, SelectionDAG &DAG);
   };
 }