Restore dump() methods to Loop and MachineLoop.

[oota-llvm.git] / include / llvm / InlineAsm.h

diff --git a/include/llvm/InlineAsm.h b/include/llvm/InlineAsm.h
index 325b777dd49f8644de44f2e87c196c7fa479fd5a..482e53e3fe24fcd052eeb967b7233502d9442c40 100644 (file)
--- 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 {
@@ -79,9 +83,15 @@ public:
     /// read.  This is only ever set for an output operand.
     bool isEarlyClobber; 
     
-    /// hasMatchingInput - This is set to true for an output constraint iff
-    /// there is an input constraint that is required to match it (e.g. "0").
-    bool hasMatchingInput;
+    /// MatchingInput - If this is not -1, this is an output constraint where an
+    /// input constraint is required to match it (e.g. "0").  The value is the
+    /// constraint number that matches this one (for example, if this is
+    /// constraint #0 and constraint #4 has the value "0", this will be 4).
+    signed char MatchingInput;
+    
+    /// hasMatchingInput - Return true if this is an output constraint that has
+    /// a matching input constraint.
+    bool hasMatchingInput() const { return MatchingInput != -1; }
     
     /// isCommutative - This is set to true for a constraint that is commutative
     /// with the next operand.
@@ -100,7 +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);
   };
   
@@ -108,7 +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.
@@ -122,6 +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