Successfully bootstrapped & regrtested on x86_64-pc-linux-gnu.
Pushed to trunk as r16-2760-gc125e86853a23b.

gcc/ChangeLog:
        * gimple-warn-recursion.cc (pass_warn_recursion::execute): Add
        missing auto_diagnostic_group.

Signed-off-by: David Malcolm <dmalc...@redhat.com>
---
 gcc/gimple-warn-recursion.cc | 1 +
 1 file changed, 1 insertion(+)

diff --git a/gcc/gimple-warn-recursion.cc b/gcc/gimple-warn-recursion.cc
index e6a0c4c227f5..d061e7eee2b7 100644
--- a/gcc/gimple-warn-recursion.cc
+++ b/gcc/gimple-warn-recursion.cc
@@ -190,6 +190,7 @@ pass_warn_recursion::execute (function *func)
   if (find_function_exit (entry_bb) || m_calls->length () == 0)
     return 0;
 
+  auto_diagnostic_group d;
   if (warning_at (DECL_SOURCE_LOCATION (func->decl),
                  OPT_Winfinite_recursion,
                  "infinite recursion detected"))
-- 
2.26.3

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