Match X86 register names to number.

llvm-svn: 77404

3 files changed, 21 insertions, 8 deletions

diff --git a/llvm/utils/TableGen/AsmMatcherEmitter.cpp b/llvm/utils/TableGen/AsmMatcherEmitter.cpp
index 1d4ad0947ae..d00ff202ad0 100644
--- a/llvm/utils/TableGen/AsmMatcherEmitter.cpp
+++ b/llvm/utils/TableGen/AsmMatcherEmitter.cpp
@@ -20,17 +20,17 @@ using namespace llvm;
 void AsmMatcherEmitter::run(raw_ostream &OS) {
   CodeGenTarget Target;
   const std::vector<CodeGenRegister> &Registers = Target.getRegisters();
+  Record *AsmParser = Target.getAsmParser();
+  std::string ClassName = AsmParser->getValueAsString("AsmParserClassName");
 
   std::string Namespace = Registers[0].TheDef->getValueAsString("Namespace");
 
   EmitSourceFileHeader("Assembly Matcher Source Fragment", OS);
-  OS << "namespace llvm {\n\n";
 
   // Emit the function to match a register name to number.
 
-  if (!Namespace.empty())
-    OS << "namespace " << Namespace << " {\n";
-  OS << "bool MatchRegisterName(const std::string &Name, unsigned &RegNo) {\n";
+  OS << "bool " << Target.getName() << ClassName
+     << "::MatchRegisterName(const StringRef &Name, unsigned &RegNo) {\n";
 
   // FIXME: TableGen should have a fast string matcher generator.
   for (unsigned i = 0, e = Registers.size(); i != e; ++i) {
@@ -44,8 +44,4 @@ void AsmMatcherEmitter::run(raw_ostream &OS) {
   }
   OS << "  return true;\n";
   OS << "}\n";
-
-  if (!Namespace.empty())
-    OS << "}\n";
-  OS << "} // End llvm namespace \n";
 }
diff --git a/llvm/utils/TableGen/CodeGenTarget.cpp b/llvm/utils/TableGen/CodeGenTarget.cpp
index ed703be944a..0849d4f832f 100644
--- a/llvm/utils/TableGen/CodeGenTarget.cpp
+++ b/llvm/utils/TableGen/CodeGenTarget.cpp
@@ -23,6 +23,10 @@
 using namespace llvm;
 
 static cl::opt<unsigned>
+AsmParserNum("asmparsernum", cl::init(0),
+             cl::desc("Make -gen-asm-parser emit assembly parser #N"));
+
+static cl::opt<unsigned>
 AsmWriterNum("asmwriternum", cl::init(0),
              cl::desc("Make -gen-asm-writer emit assembly writer #N"));
 
@@ -133,6 +137,15 @@ Record *CodeGenTarget::getInstructionSet() const {
   return TargetRec->getValueAsDef("InstructionSet");
 }
 
+/// getAsmParser - Return the AssemblyParser definition for this target.
+///
+Record *CodeGenTarget::getAsmParser() const {
+  std::vector<Record*> LI = TargetRec->getValueAsListOfDefs("AssemblyParsers");
+  if (AsmParserNum >= LI.size())
+    throw "Target does not have an AsmParser #" + utostr(AsmParserNum) + "!";
+  return LI[AsmParserNum];
+}
+
 /// getAsmWriter - Return the AssemblyWriter definition for this target.
 ///
 Record *CodeGenTarget::getAsmWriter() const {
diff --git a/llvm/utils/TableGen/CodeGenTarget.h b/llvm/utils/TableGen/CodeGenTarget.h
index 0ec99558146..e763795ce0b 100644
--- a/llvm/utils/TableGen/CodeGenTarget.h
+++ b/llvm/utils/TableGen/CodeGenTarget.h
@@ -87,6 +87,10 @@ public:
   ///
   Record *getInstructionSet() const;
 
+  /// getAsmParser - Return the AssemblyParser definition for this target.
+  ///
+  Record *getAsmParser() const;
+
   /// getAsmWriter - Return the AssemblyWriter definition for this target.
   ///
   Record *getAsmWriter() const;