X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=include%2Fllvm%2FInlineAsm.h;h=482e53e3fe24fcd052eeb967b7233502d9442c40;hb=9e6d1d1f5034347d237941f1bf08fba5c1583cd3;hp=879b2e847f9a4845147c59814f6ee98a5bcb19fb;hpb=6bdcda3d3e30003fb6cef1d4e2fd3a5d5b40d3fc;p=oota-llvm.git

diff --git a/include/llvm/InlineAsm.h b/include/llvm/InlineAsm.h
index 879b2e847f9..482e53e3fe2 100644
--- a/include/llvm/InlineAsm.h
+++ b/include/llvm/InlineAsm.h
@@ -31,18 +31,22 @@ class InlineAsm : public Value {
 
   std::string AsmString, Constraints;
   bool HasSideEffects;
+  bool IsAlignStack;
   
-  InlineAsm(const FunctionType *Ty, const std::string &AsmString,
-            const std::string &Constraints, bool hasSideEffects);
+  InlineAsm(const FunctionType *Ty, StringRef AsmString,
+            StringRef Constraints, bool hasSideEffects,
+            bool isAlignStack = false);
   virtual ~InlineAsm();
 public:
 
   /// InlineAsm::get - Return the the specified uniqued inline asm string.
   ///
-  static InlineAsm *get(const FunctionType *Ty, const std::string &AsmString,
-                        const std::string &Constraints, bool hasSideEffects);
+  static InlineAsm *get(const FunctionType *Ty, StringRef AsmString,
+                        StringRef Constraints, bool hasSideEffects,
+                        bool isAlignStack = false);
   
   bool hasSideEffects() const { return HasSideEffects; }
+  bool isAlignStack() const { return IsAlignStack; }
   
   /// getType - InlineAsm's are always pointers.
   ///
@@ -61,7 +65,7 @@ public:
   /// the specified constraint string is legal for the type.  This returns true
   /// if legal, false if not.
   ///
-  static bool Verify(const FunctionType *Ty, const std::string &Constraints);
+  static bool Verify(const FunctionType *Ty, StringRef Constraints);
 
   // Constraint String Parsing 
   enum ConstraintPrefix {
@@ -106,7 +110,7 @@ public:
     /// Parse - Analyze the specified string (e.g. "=*&{eax}") and fill in the
     /// fields in this structure.  If the constraint string is not understood,
     /// return true, otherwise return false.
-    bool Parse(const std::string &Str, 
+    bool Parse(StringRef Str, 
                std::vector<InlineAsm::ConstraintInfo> &ConstraintsSoFar);
   };
   
@@ -114,7 +118,7 @@ public:
   /// constraints and their prefixes.  If this returns an empty vector, and if
   /// the constraint string itself isn't empty, there was an error parsing.
   static std::vector<ConstraintInfo> 
-    ParseConstraints(const std::string &ConstraintString);
+    ParseConstraints(StringRef ConstraintString);
   
   /// ParseConstraints - Parse the constraints of this inlineasm object, 
   /// returning them the same way that ParseConstraints(str) does.
@@ -128,6 +132,23 @@ public:
   static inline bool classof(const Value *V) {
     return V->getValueID() == Value::InlineAsmVal;
   }
+
+  /// getNumOperandRegisters - Extract the number of registers field from the
+  /// inline asm operand flag.
+  static unsigned getNumOperandRegisters(unsigned Flag) {
+    return (Flag & 0xffff) >> 3;
+  }
+
+  /// isUseOperandTiedToDef - Return true if the flag of the inline asm
+  /// operand indicates it is an use operand that's matched to a def operand.
+  static bool isUseOperandTiedToDef(unsigned Flag, unsigned &Idx) {
+    if ((Flag & 0x80000000) == 0)
+      return false;
+    Idx = (Flag & ~0x80000000) >> 16;
+    return true;
+  }
+
+
 };
 
 } // End llvm namespace