[llvm] r351577 - Fix the buildbot issue introduced by r351421

[Sanjin Sijaric via llvm-commits]

Author: ssijaric
Date: Fri Jan 18 11:34:20 2019
New Revision: 351577

URL: http://llvm.org/viewvc/llvm-project?rev=351577&view=rev
Log:
Fix the buildbot issue introduced by r351421

The EXPENSIVE_CHECK x86_64 Windows buildbot is failing due to this change. Fix
the map access.

Modified:
    llvm/trunk/lib/MC/MCWin64EH.cpp

Modified: llvm/trunk/lib/MC/MCWin64EH.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/MC/MCWin64EH.cpp?rev=351577&r1=351576&r2=351577&view=diff
==============================================================================
--- llvm/trunk/lib/MC/MCWin64EH.cpp (original)
+++ llvm/trunk/lib/MC/MCWin64EH.cpp Fri Jan 18 11:34:20 2019
@@ -522,7 +522,7 @@ static void ARM64EmitUnwindInfo(MCStream
     if (MatchingEpilog) {
       assert(EpilogInfo.find(MatchingEpilog) != EpilogInfo.end() &&
              "Duplicate epilog not found");
-      EpilogInfo[EpilogStart] = EpilogInfo[MatchingEpilog];
+      EpilogInfo[EpilogStart] = EpilogInfo.lookup(MatchingEpilog);
       // Clear the unwind codes in the EpilogMap, so that they don't get output
       // in the logic below.
       EpilogInstrs.clear();