Use cntvct_el0 to get time in utf_converters/performance test case on…

… ARM64
ww898 · Apr 9, 2020 · 5a3c0aa · 5a3c0aa
1 parent c310e45
commit 5a3c0aa
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/test/utf_converters_test.cpp b/test/utf_converters_test.cpp
@@ -565,6 +565,12 @@ uint64_t get_time() throw()
 #endif
         );
     return static_cast<uint64_t>(hi) << 32 | lo;
+#elif defined(__aarch64__)
+    uint64_t cntvct_el0;
+    asm volatile(
+        "mrs %0, cntvct_el0\n\t"
+        : "=r" (cntvct_el0) : : );
+    return cntvct_el0;
 #else
 #error Unsupported architecture
 #endif