X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=include%2Fllvm%2FInlineAsm.h;h=84292cf19e3dde5e56c37adbfdd505f29081e808;hb=b834a7b73ce0dcf8fbf8d8b0d62f69e4b78059ad;hp=98f254f5389649354bc24907558980255183ab91;hpb=5c7e326585f3a543388ba871c3425f7664cd9143;p=oota-llvm.git

diff --git a/include/llvm/InlineAsm.h b/include/llvm/InlineAsm.h
index 98f254f5389..84292cf19e3 100644
--- a/include/llvm/InlineAsm.h
+++ b/include/llvm/InlineAsm.h
@@ -2,8 +2,8 @@
 //
 //                     The LLVM Compiler Infrastructure
 //
-// This file was developed by Chris Lattner and is distributed under
-// the University of Illinois Open Source License. See LICENSE.TXT for details.
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 //
@@ -17,12 +17,10 @@
 #define LLVM_INLINEASM_H
 
 #include "llvm/Value.h"
-#include "llvm/System/IncludeFile.h"
 #include <vector>
 
 namespace llvm {
 
-struct AssemblyAnnotationWriter;
 class PointerType;
 class FunctionType;
 class Module;
@@ -59,10 +57,6 @@ public:
   const std::string &getAsmString() const { return AsmString; }
   const std::string &getConstraintString() const { return Constraints; }
 
-  virtual void print(std::ostream &O) const { print(O, 0); }
-  void print(std::ostream *O) const { if (O) print(*O); }
-  void print(std::ostream &OS, AssemblyAnnotationWriter *AAW) const;
-
   /// Verify - This static method can be used by the parser to check to see if
   /// the specified constraint string is legal for the type.  This returns true
   /// if legal, false if not.
@@ -85,23 +79,31 @@ public:
     /// read.  This is only ever set for an output operand.
     bool isEarlyClobber; 
     
-    /// isIndirectOutput - If this is true for an output constraint, the address
-    /// to store the output result is passed as an operand to the call.
-    bool isIndirectOutput;
+    /// 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 - 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;
+    /// 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.
     bool isCommutative;
     
+    /// isIndirect - True if this operand is an indirect operand.  This means
+    /// that the address of the source or destination is present in the call
+    /// instruction, instead of it being returned or passed in explicitly.  This
+    /// is represented with a '*' in the asm string.
+    bool isIndirect;
+    
     /// Code - The constraint code, either the register name (in braces) or the
     /// constraint letter/number.
     std::vector<std::string> Codes;
     
-    /// Parse - Analyze the specified string (e.g. "==&{eax}") and fill in the
+    /// 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, 
@@ -124,13 +126,27 @@ public:
   // Methods for support type inquiry through isa, cast, and dyn_cast:
   static inline bool classof(const InlineAsm *) { return true; }
   static inline bool classof(const Value *V) {
-    return V->getValueType() == Value::InlineAsmVal;
+    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
 
-// Make sure the InlineAsm.cpp file is linked when this one is #included.
-FORCE_DEFINING_FILE_TO_BE_LINKED(InlineAsm)
-
 #endif