From d66e0dc6cc3c0ce647a9c238aa30d7b867f87317 Mon Sep 17 00:00:00 2001
From: Derek Mauro <dmauro@google.com>
Date: Tue, 14 Jun 2022 13:51:01 -0700
Subject: [PATCH] absl::Optional: suppress bogus -Wmaybe-uninitialized GCC 12
 warning

PiperOrigin-RevId: 454947125
Change-Id: Idbe6c8b4953c3d6147326bebc915d24dff83e7d5
---
 absl/types/internal/optional.h | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/absl/types/internal/optional.h b/absl/types/internal/optional.h
index 92932b60..6ed0c669 100644
--- a/absl/types/internal/optional.h
+++ b/absl/types/internal/optional.h
@@ -91,7 +91,15 @@ class optional_data_dtor_base {
 
   void destruct() noexcept {
     if (engaged_) {
+      // `data_` must be initialized if `engaged_` is true.
+#if ABSL_INTERNAL_HAVE_MIN_GNUC_VERSION(12, 0)
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wmaybe-uninitialized"
+#endif
       data_.~T();
+#if ABSL_INTERNAL_HAVE_MIN_GNUC_VERSION(12, 0)
+#pragma GCC diagnostic pop
+#endif
       engaged_ = false;
     }
   }