From 0df1e464f8b9f057bed9219f76013b15de9822a9 Mon Sep 17 00:00:00 2001
From: Davide Italiano <davide@freebsd.org>
Date: Thu, 13 Jul 2017 04:19:13 +0000
Subject: [PATCH] [opt-viewer] Don't except when debug info is not available.

For records without DebugLoc we simply skip the caller location in
map_remarks.

Fixes PR33764.

Patch by Simon Whittaker!

llvm-svn: 307880
---
 tools/opt-viewer/opt-viewer.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/tools/opt-viewer/opt-viewer.py b/tools/opt-viewer/opt-viewer.py
index 5e5daf7feb0..e6dd6a0286f 100755
--- a/tools/opt-viewer/opt-viewer.py
+++ b/tools/opt-viewer/opt-viewer.py
@@ -178,7 +178,10 @@ def map_remarks(all_remarks):
             for arg in remark.Args:
                 caller = arg.get('Caller')
                 if caller:
-                    context.caller_loc[caller] = arg['DebugLoc']
+                    try:
+                        context.caller_loc[caller] = arg['DebugLoc']
+                    except KeyError:
+                        pass
 
 
 def generate_report(all_remarks,