From c2b0875b8d9e08a19f9ed9fae02fb121e4fc4a1f Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Tue, 5 Oct 2010 22:59:29 +0000
Subject: [PATCH] when david added support for #NAME# he didn't update the
 comments and tried (but failed) to artificially constrain it to working with
 #NAME#. Just allow any # in identifiers, and update the comments.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115704 91177308-0d34-0410-b5e6-96231b3b80d8
---
 utils/TableGen/TGLexer.cpp | 22 ++++++----------------
 1 file changed, 6 insertions(+), 16 deletions(-)

diff --git a/utils/TableGen/TGLexer.cpp b/utils/TableGen/TGLexer.cpp
index b444b9ccda0..4ea2e9118ef 100644
--- a/utils/TableGen/TGLexer.cpp
+++ b/utils/TableGen/TGLexer.cpp
@@ -96,7 +96,7 @@ tgtok::TokKind TGLexer::LexToken() {
 
   switch (CurChar) {
   default:
-    // Handle letters: [a-zA-Z_]
+    // Handle letters: [a-zA-Z_#]
     if (isalpha(CurChar) || CurChar == '_' || CurChar == '#')
       return LexIdentifier();
       
@@ -215,23 +215,13 @@ tgtok::TokKind TGLexer::LexVarName() {
 
 
 tgtok::TokKind TGLexer::LexIdentifier() {
-  // The first letter is [a-zA-Z_].
+  // The first letter is [a-zA-Z_#].
   const char *IdentStart = TokStart;
   
-  // Match the rest of the identifier regex: [0-9a-zA-Z_]*
-  while (isalpha(*CurPtr) || isdigit(*CurPtr) || *CurPtr == '_'
-         || *CurPtr == '#') {
-    // If this contains a '#', make sure it's value
-    if (*CurPtr == '#') {
-      if (strncmp(CurPtr, "#NAME#", 6) != 0) {
-        return tgtok::Error;
-      }
-      CurPtr += 6;
-    }
-    else {
-      ++CurPtr;
-    }
-  }
+  // Match the rest of the identifier regex: [0-9a-zA-Z_#]*
+  while (isalpha(*CurPtr) || isdigit(*CurPtr) || *CurPtr == '_' ||
+         *CurPtr == '#')
+    ++CurPtr;
   
   
   // Check to see if this identifier is a keyword.