From 28d5de33e66d08c44260a9f3783af8c7be5107f6 Mon Sep 17 00:00:00 2001
From: Marcus Holland-Moritz <github@mhxnet.de>
Date: Sun, 9 Jul 2023 17:47:16 +0200
Subject: [PATCH] Document that -O3 is still a bad idea for gcc-12

---
 CMakeLists.txt | 1 +
 1 file changed, 1 insertion(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index f20db53e..f930515f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -84,6 +84,7 @@ endif()
 if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
   add_compile_options(-fdiagnostics-color=always)
   # For gcc, -O3 is *much* worse than -O2
+  # Update: This is still true for gcc-12
   set(CMAKE_C_FLAGS_RELEASE "-DNDEBUG -O2 -g")
   set(CMAKE_CXX_FLAGS_RELEASE "-DNDEBUG -O2 -g")
 elseif("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")