X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=include%2Fllvm%2FMC%2FMCTargetAsmParser.h;h=483a80b3b595938d953df54e54eb87927eb3d351;hb=f43e3fdb4ffddff6f71b5597c813c43e1e206564;hp=a771ed7a9d613a1904d5849cdad0c57646c858ee;hpb=d717a066c6ddaff401b9259579b265eeafb83b6e;p=oota-llvm.git

diff --git a/include/llvm/MC/MCTargetAsmParser.h b/include/llvm/MC/MCTargetAsmParser.h
index a771ed7a9d6..483a80b3b59 100644
--- a/include/llvm/MC/MCTargetAsmParser.h
+++ b/include/llvm/MC/MCTargetAsmParser.h
@@ -21,6 +21,39 @@ class MCParsedAsmOperand;
 class MCInst;
 template <typename T> class SmallVectorImpl;
 
+enum AsmRewriteKind {
+  AOK_DotOperator,    // Rewrite a dot operator expression as an immediate.
+                      // E.g., [eax].foo.bar -> [eax].8
+  AOK_Emit,           // Rewrite _emit as .byte.
+  AOK_Imm,            // Rewrite as $$N.
+  AOK_ImmPrefix,      // Add $$ before a parsed Imm.
+  AOK_Input,          // Rewrite in terms of $N.
+  AOK_Output,         // Rewrite in terms of $N.
+  AOK_SizeDirective,  // Add a sizing directive (e.g., dword ptr).
+  AOK_Skip            // Skip emission (e.g., offset/type operators).
+};
+
+struct AsmRewrite {
+  AsmRewriteKind Kind;
+  SMLoc Loc;
+  unsigned Len;
+  unsigned Val;
+public:
+  AsmRewrite(AsmRewriteKind kind, SMLoc loc, unsigned len = 0, unsigned val = 0)
+    : Kind(kind), Loc(loc), Len(len), Val(val) {}
+};
+
+struct ParseInstructionInfo {
+
+  SmallVectorImpl<AsmRewrite> *AsmRewrites;
+
+  ParseInstructionInfo() : AsmRewrites(0) {}
+  ParseInstructionInfo(SmallVectorImpl<AsmRewrite> *rewrites)
+    : AsmRewrites(rewrites) {}
+
+  ~ParseInstructionInfo() {}
+};
+
 /// MCTargetAsmParser - Generic interface to target specific assembly parsers.
 class MCTargetAsmParser : public MCAsmParserExtension {
 public:
@@ -41,12 +74,26 @@ protected: // Can only create subclasses.
   /// AvailableFeatures - The current set of available features.
   unsigned AvailableFeatures;
 
+  /// ParsingInlineAsm - Are we parsing ms-style inline assembly?
+  bool ParsingInlineAsm;
+
+  /// SemaCallback - The Sema callback implementation.  Must be set when parsing
+  /// ms-style inline assembly.
+  MCAsmParserSemaCallback *SemaCallback;
+
 public:
   virtual ~MCTargetAsmParser();
 
   unsigned getAvailableFeatures() const { return AvailableFeatures; }
   void setAvailableFeatures(unsigned Value) { AvailableFeatures = Value; }
 
+  bool isParsingInlineAsm () { return ParsingInlineAsm; }
+  void setParsingInlineAsm (bool Value) { ParsingInlineAsm = Value; }
+
+  void setSemaCallback(MCAsmParserSemaCallback *Callback) {
+    SemaCallback = Callback;
+  }
+
   virtual bool ParseRegister(unsigned &RegNo, SMLoc &StartLoc,
                              SMLoc &EndLoc) = 0;
 
@@ -63,7 +110,8 @@ public:
   /// \param Operands [out] - The list of parsed operands, this returns
   ///        ownership of them to the caller.
   /// \return True on failure.
-  virtual bool ParseInstruction(StringRef Name, SMLoc NameLoc,
+  virtual bool ParseInstruction(ParseInstructionInfo &Info, StringRef Name,
+                                SMLoc NameLoc,
                             SmallVectorImpl<MCParsedAsmOperand*> &Operands) = 0;
 
   /// ParseDirective - Parse a target specific assembler directive
@@ -82,22 +130,6 @@ public:
   /// otherwise.
   virtual bool mnemonicIsValid(StringRef Mnemonic) = 0;
 
-  /// MatchInstruction - Recognize a series of operands of a parsed instruction
-  /// as an actual MCInst.  This returns false on success and returns true on
-  /// failure to match.
-  ///
-  /// On failure, the target parser is responsible for emitting a diagnostic
-  /// explaining the match failure.
-  virtual bool
-  MatchInstruction(SMLoc IDLoc, unsigned &Kind,
-                   SmallVectorImpl<MCParsedAsmOperand*> &Operands,
-                   SmallVectorImpl<MCInst> &MCInsts,
-                   unsigned &OrigErrorInfo,
-                   bool matchingInlineAsm = false) {
-    OrigErrorInfo = ~0x0;
-    return true;
-  }
-
   /// MatchAndEmitInstruction - Recognize a series of operands of a parsed
   /// instruction as an actual MCInst and emit it to the specified MCStreamer.
   /// This returns false on success and returns true on failure to match.
@@ -105,9 +137,10 @@ public:
   /// On failure, the target parser is responsible for emitting a diagnostic
   /// explaining the match failure.
   virtual bool
-  MatchAndEmitInstruction(SMLoc IDLoc,
+  MatchAndEmitInstruction(SMLoc IDLoc, unsigned &Opcode,
                           SmallVectorImpl<MCParsedAsmOperand*> &Operands,
-                          MCStreamer &Out) = 0;
+                          MCStreamer &Out, unsigned &ErrorInfo,
+                          bool MatchingInlineAsm) = 0;
 
   /// checkTargetMatchPredicate - Validate the instruction match against
   /// any complex target predicates not expressible via match classes.
@@ -115,10 +148,8 @@ public:
     return Match_Success;
   }
 
-  virtual unsigned getMCInstOperandNum(unsigned Kind, MCInst &Inst,
-                           const SmallVectorImpl<MCParsedAsmOperand*> &Operands,
-                                       unsigned OperandNum,
-                                       unsigned &NumMCOperands) = 0;
+  virtual void convertToMapAndConstraints(unsigned Kind,
+                      const SmallVectorImpl<MCParsedAsmOperand*> &Operands) = 0;
 };
 
 } // End llvm namespace