From c32097312af863789ecadb88962827a8d14b7809 Mon Sep 17 00:00:00 2001
From: Mario Emmenlauer <memmenlauer@biodataanalysis.de>
Date: Wed, 9 Mar 2022 17:15:57 +0100
Subject: [PATCH] Added support for clearing the cache on Android arm64

---
 src/ffts.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/ffts.c b/src/ffts.c
index 35c5cad00db..c9167e64a17 100644
--- a/src/ffts.c
+++ b/src/ffts.c
@@ -116,7 +116,11 @@ ffts_flush_instruction_cache(void *start, size_t length)
 #ifdef __APPLE__
     sys_icache_invalidate(start, length);
 #elif __ANDROID__
+#if __ARM_ARCH_ISA_A64
+    __builtin___clear_cache((long) start, (long) start + length);
+#else
     cacheflush((long) start, (long) start + length, 0);
+#endif
 #elif __linux__
 #if GCC_VERSION_AT_LEAST(4,3)
     __builtin___clear_cache(start, (char*) start + length);