llvm-mc: Parse .{,b,p2}align{,w,l} directives.

llvm-svn: 74478
diff --git a/llvm/tools/llvm-mc/AsmParser.h b/llvm/tools/llvm-mc/AsmParser.h
index 326d0e7..aa885e6 100644
--- a/llvm/tools/llvm-mc/AsmParser.h
+++ b/llvm/tools/llvm-mc/AsmParser.h
@@ -79,6 +79,8 @@
   bool ParseDirectiveSpace(); // ".space"
   bool ParseDirectiveSet(); // ".set"
   bool ParseDirectiveOrg(); // ".org"
+  // ".align{,32}", ".p2align{,w,l}"
+  bool ParseDirectiveAlign(bool IsPow2, unsigned ValueSize);
   
 };