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

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74478 91177308-0d34-0410-b5e6-96231b3b80d8

tools/llvm-mc/AsmParser.h

@@ -79,6 +79,8 @@ private:
   bool ParseDirectiveSpace(); // ".space"
   bool ParseDirectiveSet(); // ".set"
   bool ParseDirectiveOrg(); // ".org"
+  // ".align{,32}", ".p2align{,w,l}"
+  bool ParseDirectiveAlign(bool IsPow2, unsigned ValueSize);
   
 };