Add triple.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131169 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/DebugInfo/debug_frame.ll b/test/DebugInfo/debug_frame.ll
index d267ad6..d273d73 100644
--- a/test/DebugInfo/debug_frame.ll
+++ b/test/DebugInfo/debug_frame.ll
@@ -1,4 +1,4 @@
-; RUN: llc %s -o - | FileCheck %s
+; RUN: llc %s -mtriple=i686-pc-linux-gnu -o - | FileCheck %s
 
 ; Test that we produce a .debug_frame, not an .eh_frame