tidy up comments
Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
diff --git a/library/common.h b/library/common.h
index 4f4c222..3e81e81 100644
--- a/library/common.h
+++ b/library/common.h
@@ -318,15 +318,15 @@
#define MBEDTLS_UNLIKELY(x) x
#endif
-#if defined(__has_builtin)
-#if __has_builtin(__builtin_assume)
/* MBEDTLS_ASSUME may be used to provide additional information to the compiler
* which can result in smaller code-size. */
+#if defined(__has_builtin)
+#if __has_builtin(__builtin_assume)
+/* clang provides __builtin_assume */
#define MBEDTLS_ASSUME(x) __builtin_assume(x)
-// clang provides __builtin_assume
#elif __has_builtin(__builtin_unreachable)
+/* gcc can use __builtin_unreachable */
#define MBEDTLS_ASSUME(x) do { if (!(x)) __builtin_unreachable(); } while (0)
-// For gcc, use __builtin_unreachable
#endif
#endif
#if !defined(MBEDTLS_ASSUME)