MIR Serialization: Serialize physical register machine operands.

This commit introduces functionality that's used to serialize machine operands.
Only the physical register operands are serialized by this commit.

Reviewers: Duncan P. N. Exon Smith

Differential Revision: http://reviews.llvm.org/D10525

llvm-svn: 240425

1 files changed, 8 insertions, 1 deletions

diff --git a/llvm/lib/CodeGen/MIRParser/MILexer.h b/llvm/lib/CodeGen/MIRParser/MILexer.h
index d6a5d1f4ec9..24cbf7d72f3 100644
--- a/llvm/lib/CodeGen/MIRParser/MILexer.h
+++ b/llvm/lib/CodeGen/MIRParser/MILexer.h
@@ -30,8 +30,13 @@ struct MIToken {
     Eof,
     Error,
 
+    // Tokens with no info.
+    comma,
+    equal,
+
     // Identifier tokens
-    Identifier
+    Identifier,
+    NamedRegister
   };
 
 private:
@@ -45,6 +50,8 @@ public:
 
   bool isError() const { return Kind == Error; }
 
+  bool isRegister() const { return Kind == NamedRegister; }
+
   bool is(TokenKind K) const { return Kind == K; }
 
   bool isNot(TokenKind K) const { return Kind != K; }