Modified the register matcher function in AsmMatcher to

be static.  Also made it possible for clients to get it
and no other functions from ...GenAsmMatcher.inc by
defining REGISTERS_ONLY before including GenAsmMatcher.inc.
This sets the stage for target-specific lexers that can
identify registers and return AsmToken::Register as
appropriate.

llvm-svn: 94266

2 files changed, 11 insertions, 7 deletions

diff --git a/llvm/lib/Target/X86/AsmParser/X86AsmParser.cpp b/llvm/lib/Target/X86/AsmParser/X86AsmParser.cpp
index 6ced1f4f151..a367189028f 100644
--- a/llvm/lib/Target/X86/AsmParser/X86AsmParser.cpp
+++ b/llvm/lib/Target/X86/AsmParser/X86AsmParser.cpp
@@ -50,10 +50,6 @@ private:
   bool MatchInstruction(const SmallVectorImpl<MCParsedAsmOperand*> &Operands,
                         MCInst &Inst);
 
-  /// MatchRegisterName - Match the given string to a register name, or 0 if
-  /// there is no match.
-  unsigned MatchRegisterName(const StringRef &Name);
-
   /// }
 
 public:
@@ -68,6 +64,12 @@ public:
   
 } // end anonymous namespace
 
+/// @name Auto-generated Match Functions
+/// {  
+
+static unsigned MatchRegisterName(const StringRef &Name);
+
+/// }
 
 namespace {
 
diff --git a/llvm/utils/TableGen/AsmMatcherEmitter.cpp b/llvm/utils/TableGen/AsmMatcherEmitter.cpp
index 8c37c3aabe0..ce1521d86a7 100644
--- a/llvm/utils/TableGen/AsmMatcherEmitter.cpp
+++ b/llvm/utils/TableGen/AsmMatcherEmitter.cpp
@@ -1390,9 +1390,7 @@ static void EmitMatchRegisterName(CodeGenTarget &Target, Record *AsmParser,
                                  "return " + utostr(i + 1) + ";"));
   }
   
-  OS << "unsigned " << Target.getName() 
-     << AsmParser->getValueAsString("AsmParserClassName")
-     << "::MatchRegisterName(const StringRef &Name) {\n";
+  OS << "static unsigned MatchRegisterName(const StringRef &Name) {\n";
 
   EmitStringMatcher("Name", Matches, OS);
   
@@ -1451,6 +1449,8 @@ void AsmMatcherEmitter::run(raw_ostream &OS) {
 
   // Emit the function to match a register name to number.
   EmitMatchRegisterName(Target, AsmParser, OS);
+  
+  OS << "#ifndef REGISTERS_ONLY\n\n";
 
   // Generate the unified function to convert operands into an MCInst.
   EmitConvertToMCInst(Target, Info.Instructions, OS);
@@ -1550,4 +1550,6 @@ void AsmMatcherEmitter::run(raw_ostream &OS) {
 
   OS << "  return true;\n";
   OS << "}\n\n";
+  
+  OS << "#endif // REGISTERS_ONLY\n";
 }