clang optimizes the malloc away even when assert() is called. Printing
the memory address should be side-effecty enough to avoid this
optimization.
---
tests/sanity-test.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/tests/sanity-test.c b/tests/sanity-test.c
index 46f4f85..0df2e98 100644
--- a/tests/sanity-test.c
+++ b/tests/sanity-test.c
@@ -25,6 +25,7 @@
#include <sys/types.h>
#include <signal.h>
#include <unistd.h>
+#include <stdio.h>
#include "test-runner.h"
#include "wayland-util.h"
@@ -75,6 +76,7 @@ FAIL_TEST(sanity_malloc_direct)
p = malloc(10); /* memory leak */
assert(p); /* assert that we got memory, also prevents
* the malloc from getting optimized away. */
+ printf("Avoiding optimization %p\n", p);
free(NULL); /* NULL must not be counted */
}
--
1.8.3.1
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