This is consistent with most of the other attribute macros.
Signed-off-by: Mans Rullgard <mans@mansr.com>
#endif
#endif
+/**
+ * Mark a variable as used and prevent the compiler from optimizing it
+ * away. This is useful for variables accessed only from inline
+ * assembler without the compiler being aware.
+ */
+#ifndef av_used
+#if AV_GCC_VERSION_AT_LEAST(3,1)
+# define av_used __attribute__((used))
+#else
+# define av_used
+#endif
+#endif
+
#ifndef av_alias
#if (!defined(__ICC) || __ICC > 1200) && AV_GCC_VERSION_AT_LEAST(3,3)
# define av_alias __attribute__((may_alias))
#endif
#endif
-
-/**
- * Mark a variable as used and prevent the compiler from optimizing it away.
- * This is useful for asm that accesses varibles in ways that the compiler does not
- * understand
- */
-#ifndef attribute_used
-#if AV_GCC_VERSION_AT_LEAST(3,1)
-# define attribute_used __attribute__((used))
-#else
-# define attribute_used
-#endif
-#endif
-
#ifndef INT16_MIN
#define INT16_MIN (-0x7fff - 1)
#endif
static const t __attribute__((aligned(n))) v
#elif defined(__GNUC__)
#define DECLARE_ALIGNED(n,t,v) t __attribute__ ((aligned (n))) v
- #define DECLARE_ASM_CONST(n,t,v) static const t attribute_used __attribute__ ((aligned (n))) v
+ #define DECLARE_ASM_CONST(n,t,v) static const t av_used __attribute__ ((aligned (n))) v
#elif defined(_MSC_VER)
#define DECLARE_ALIGNED(n,t,v) __declspec(align(n)) t v
#define DECLARE_ASM_CONST(n,t,v) __declspec(align(n)) static const t v