llvm-mc: Accept .fill size of 8.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79635 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/llvm-mc/AsmParser.cpp b/tools/llvm-mc/AsmParser.cpp
index c8eb7ec..f67bad1 100644
--- a/tools/llvm-mc/AsmParser.cpp
+++ b/tools/llvm-mc/AsmParser.cpp
@@ -981,8 +981,8 @@
   
   Lexer.Lex();
 
-  if (FillSize != 1 && FillSize != 2 && FillSize != 4)
-    return TokError("invalid '.fill' size, expected 1, 2, or 4");
+  if (FillSize != 1 && FillSize != 2 && FillSize != 4 && FillSize != 8)
+    return TokError("invalid '.fill' size, expected 1, 2, 4, or 8");
 
   for (uint64_t i = 0, e = NumValues; i != e; ++i)
     Out.EmitValue(MCValue::get(FillExpr), FillSize);