X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=include%2Fllvm%2FCodeGen%2FMachineMemOperand.h;h=ddb127120f207c089b944a7a3be8affb812a8132;hb=b09c146b116359616f6cbd4c8b3328607e00ff42;hp=cabd129353ef0ea012257af47c98b4bf0fc010c6;hpb=f96e4bd2a3b11928af75fb7472288930d16fec0b;p=oota-llvm.git

diff --git a/include/llvm/CodeGen/MachineMemOperand.h b/include/llvm/CodeGen/MachineMemOperand.h
index cabd129353e..ddb127120f2 100644
--- a/include/llvm/CodeGen/MachineMemOperand.h
+++ b/include/llvm/CodeGen/MachineMemOperand.h
@@ -16,12 +16,13 @@
 #ifndef LLVM_CODEGEN_MACHINEMEMOPERAND_H
 #define LLVM_CODEGEN_MACHINEMEMOPERAND_H
 
-#include "llvm/System/DataTypes.h"
+#include "llvm/Support/DataTypes.h"
 
 namespace llvm {
 
 class Value;
 class FoldingSetNodeID;
+class MDNode;
 class raw_ostream;
 
 /// MachinePointerInfo - This class contains a discriminated union of
@@ -83,6 +84,7 @@ class MachineMemOperand {
   uint64_t Size;
   unsigned Flags;
   const MDNode *TBAAInfo;
+  const MDNode *Ranges;
 
 public:
   /// Flags values. These may be or'd together.
@@ -95,14 +97,17 @@ public:
     MOVolatile = 4,
     /// The memory access is non-temporal.
     MONonTemporal = 8,
+    /// The memory access is invariant.
+    MOInvariant = 16,
     // This is the number of bits we need to represent flags.
-    MOMaxBits = 4
+    MOMaxBits = 5
   };
 
   /// 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; }
   
@@ -137,10 +142,23 @@ 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