tests/xics: Ensure no compiler optimisations in delay()

In case it would be tempted to "read ahead" the delay function Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
5 years ago · 0b82024b01
parent 0fa14f6dec
commit 0b82024b01
1 changed files with 2 additions and 2 deletions
--- a/tests/xics/xics.c
+++ b/tests/xics/xics.c
@ -12,8 +12,8 @@ void delay(void)
 {
 	static volatile int i;
-	for (i = 0; i < 10; ++i)
+	for (i = 0; i < 16; ++i)
-		;
+		__asm__ volatile("" : : : "memory");
 }
 void print_number(unsigned int i) // only for i = 0-999