Add some comments explaining what MVT and EVT are, and how they differ.

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

diff --git a/include/llvm/CodeGen/MachineMemOperand.h b/include/llvm/CodeGen/MachineMemOperand.h
index 71181dfe3a39a8e14e99410395f1277bef014a79..cabd129353ef0ea012257af47c98b4bf0fc010c6 100644 (file)
--- a/include/llvm/CodeGen/MachineMemOperand.h
+++ b/include/llvm/CodeGen/MachineMemOperand.h
@@ -56,6 +56,17 @@ 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);
 };
   
   
@@ -71,6 +82,7 @@ class MachineMemOperand {
   MachinePointerInfo PtrInfo;
   uint64_t Size;
   unsigned Flags;
+  const MDNode *TBAAInfo;
 
 public:
   /// Flags values. These may be or'd together.
@@ -90,7 +102,7 @@ public:
   /// 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);
+                    unsigned base_alignment, const MDNode *TBAAInfo = 0);
 
   const MachinePointerInfo &getPointerInfo() const { return PtrInfo; }
   
@@ -122,6 +134,9 @@ public:
   /// base address, without the offset.
   uint64_t getBaseAlignment() const { return (1u << (Flags >> MOMaxBits)) >> 1; }
 
+  /// getTBAAInfo - Return the TBAA tag for the memory reference.
+  const MDNode *getTBAAInfo() const { return TBAAInfo; }
+
   bool isLoad() const { return Flags & MOLoad; }
   bool isStore() const { return Flags & MOStore; }
   bool isVolatile() const { return Flags & MOVolatile; }