From b3430a7bb8b49cb5a4e0cdb1e690f53025d80069 Mon Sep 17 00:00:00 2001
From: Matt Turner <mattst88@gmail.com>
Date: Mon, 12 Aug 2024 11:45:44 -0400
Subject: [PATCH] util: Add ATTRIBUTE_OPTIMIZE(flags)

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/30622>
---
 meson.build       | 1 +
 src/util/macros.h | 6 ++++++
 2 files changed, 7 insertions(+)

diff --git a/meson.build b/meson.build
index 0ab94e8c00b..38edec61dd0 100644
--- a/meson.build
+++ b/meson.build
@@ -1044,6 +1044,7 @@ endforeach
 _attributes = [
   'const', 'flatten', 'malloc', 'pure', 'unused', 'warn_unused_result',
   'weak', 'format', 'packed', 'returns_nonnull', 'alias', 'noreturn',
+  'optimize',
 ]
 foreach a : cc.get_supported_function_attributes(_attributes)
   pre_args += '-DHAVE_FUNC_ATTRIBUTE_@0@'.format(a.to_upper())
diff --git a/src/util/macros.h b/src/util/macros.h
index dac3872e781..88b30299d85 100644
--- a/src/util/macros.h
+++ b/src/util/macros.h
@@ -240,6 +240,12 @@ do {                       \
 #  endif
 #endif
 
+#ifdef HAVE_FUNC_ATTRIBUTE_OPTIMIZE
+#define ATTRIBUTE_OPTIMIZE(flags) __attribute__((__optimize__((flags))))
+#else
+#define ATTRIBUTE_OPTIMIZE(flags)
+#endif
+
 #ifdef __cplusplus
 /**
  * Macro function that evaluates to true if T is a trivially