From 102b8ccfe673b4e3aa189f85b0fa06f59f19a199 Mon Sep 17 00:00:00 2001
From: Craig Topper <craig.topper@gmail.com>
Date: Tue, 9 Oct 2012 04:55:28 +0000
Subject: [PATCH] In parseMSRMaskOperand, add an explicit check for the operand
 being an identifier instead of just having an assert.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165480 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Target/ARM/AsmParser/ARMAsmParser.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/Target/ARM/AsmParser/ARMAsmParser.cpp b/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
index 00f0f74067d..93e5eca6252 100644
--- a/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
+++ b/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
@@ -3372,7 +3372,8 @@ ARMAsmParser::OperandMatchResultTy ARMAsmParser::
 parseMSRMaskOperand(SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
   SMLoc S = Parser.getTok().getLoc();
   const AsmToken &Tok = Parser.getTok();
-  assert(Tok.is(AsmToken::Identifier) && "Token is not an Identifier");
+  if (!Tok.is(AsmToken::Identifier))
+    return MatchOperand_NoMatch;
   StringRef Mask = Tok.getString();
 
   if (isMClass()) {