[DAG] Fix an assertion failure caused by an invalid cast in method 'BuildVectorSDNode...

[oota-llvm.git] / include / llvm / CodeGen / MachineMemOperand.h

diff --git a/include/llvm/CodeGen/MachineMemOperand.h b/include/llvm/CodeGen/MachineMemOperand.h
index eed4a76a34ebd92d5281591c0fe451d1faee054b..f01b8ebca12f22b5e0a38881c4a2e6a695a50247 100644 (file)
--- a/include/llvm/CodeGen/MachineMemOperand.h
+++ b/include/llvm/CodeGen/MachineMemOperand.h
@@ -34,22 +34,22 @@ struct MachinePointerInfo {
   /// If this is null, then the access is to a pointer in the default address
   /// space.
   const Value *V;
-  
+
   /// Offset - This is an offset from the base Value*.
   int64_t Offset;
-  
+
   explicit MachinePointerInfo(const Value *v = 0, int64_t offset = 0)
     : V(v), Offset(offset) {}
-  
+
   MachinePointerInfo getWithOffset(int64_t O) const {
     if (V == 0) return MachinePointerInfo(0, 0);
     return MachinePointerInfo(V, Offset+O);
   }
-  
+
   /// getAddrSpace - Return the LLVM IR address space number that this pointer
   /// points into.
   unsigned getAddrSpace() const;
-  
+
   /// getConstantPool - Return a MachinePointerInfo record that refers to the
   /// constant pool.
   static MachinePointerInfo getConstantPool();
@@ -57,20 +57,20 @@ struct MachinePointerInfo {
   /// getFixedStack - Return a MachinePointerInfo record that refers to the
   /// the specified FrameIndex.
   static MachinePointerInfo getFixedStack(int FI, int64_t offset = 0);
-  
+
   /// getJumpTable - Return a MachinePointerInfo record that refers to a
   /// jump table entry.
   static MachinePointerInfo getJumpTable();
-  
+
   /// getGOT - Return a MachinePointerInfo record that refers to a
   /// GOT entry.
   static MachinePointerInfo getGOT();
-  
+
   /// getStack - stack pointer relative access.
   static MachinePointerInfo getStack(int64_t Offset);
 };
-  
-  
+
+
 //===----------------------------------------------------------------------===//
 /// MachineMemOperand - A description of a memory reference used in the backend.
 /// Instead of holding a StoreInst or LoadInst, this class holds the address
@@ -84,6 +84,7 @@ class MachineMemOperand {
   uint64_t Size;
   unsigned Flags;
   const MDNode *TBAAInfo;
+  const MDNode *Ranges;
 
 public:
   /// Flags values. These may be or'd together.
@@ -98,17 +99,21 @@ public:
     MONonTemporal = 8,
     /// The memory access is invariant.
     MOInvariant = 16,
+    // Target hints allow target passes to annotate memory operations.
+    MOTargetStartBit = 5,
+    MOTargetNumBits = 3,
     // This is the number of bits we need to represent flags.
-    MOMaxBits = 5
+    MOMaxBits = 8
   };
 
   /// MachineMemOperand - Construct an MachineMemOperand object with the
   /// specified PtrInfo, flags, size, and base alignment.
   MachineMemOperand(MachinePointerInfo PtrInfo, unsigned flags, uint64_t s,
-                    unsigned base_alignment, const MDNode *TBAAInfo = 0);
+                    unsigned base_alignment, const MDNode *TBAAInfo = 0,
+                    const MDNode *Ranges = 0);
 
   const MachinePointerInfo &getPointerInfo() const { return PtrInfo; }
-  
+
   /// getValue - Return the base address of the memory access. This may either
   /// be a normal LLVM IR Value, or one of the special values used in CodeGen.
   /// Special values are those obtained via
@@ -121,11 +126,16 @@ public:
   /// getFlags - Return the raw flags of the source value, \see MemOperandFlags.
   unsigned int getFlags() const { return Flags & ((1 << MOMaxBits) - 1); }
 
+  /// Bitwise OR the current flags with the given flags.
+  void setFlags(unsigned f) { Flags |= (f & ((1 << MOMaxBits) - 1)); }
+
   /// getOffset - For normal values, this is a byte offset added to the base
   /// address. For PseudoSourceValue::FPRel values, this is the FrameIndex
   /// number.
   int64_t getOffset() const { return PtrInfo.Offset; }
 
+  unsigned getAddrSpace() const { return PtrInfo.getAddrSpace(); }
+
   /// getSize - Return the size in bytes of the memory reference.
   uint64_t getSize() const { return Size; }
 
@@ -140,12 +150,24 @@ public:
   /// getTBAAInfo - Return the TBAA tag for the memory reference.
   const MDNode *getTBAAInfo() const { return TBAAInfo; }
 
+  /// getRanges - Return the range tag for the memory reference.
+  const MDNode *getRanges() const { return Ranges; }
+
   bool isLoad() const { return Flags & MOLoad; }
   bool isStore() const { return Flags & MOStore; }
   bool isVolatile() const { return Flags & MOVolatile; }
   bool isNonTemporal() const { return Flags & MONonTemporal; }
   bool isInvariant() const { return Flags & MOInvariant; }
 
+  /// isUnordered - Returns true if this memory operation doesn't have any
+  /// ordering constraints other than normal aliasing. Volatile and atomic
+  /// memory operations can't be reordered.
+  ///
+  /// Currently, we don't model the difference between volatile and atomic
+  /// operations. They should retain their ordering relative to all memory
+  /// operations.
+  bool isUnordered() const { return !isVolatile(); }
+
   /// refineAlignment - Update this MachineMemOperand to reflect the alignment
   /// of MMO, if it has a greater alignment. This must only be used when the
   /// new alignment applies to all users of this MachineMemOperand.