[sanitizer-coverage] test for -fsanitize-coverage=inline-8bit-counters

llvm-svn: 304632

compiler-rt/test/sanitizer_common/TestCases/sanitizer_coverage_inline8bit_counter.cc

@@ -0,0 +1,23 @@
+// Tests -fsanitize-coverage=inline-8bit-counters
+//
+// REQUIRES: has_sancovcc,stable-runtime
+// UNSUPPORTED: i386-darwin
+//
+// RUN: %clangxx -O0 %s -fsanitize-coverage=inline-8bit-counters 2>&1
+
+#include <stdio.h>
+#include <assert.h>
+
+const char *first_counter;
+
+extern "C"
+void __sanitizer_cov_8bit_counters_init(const char *start, const char *end) {
+  printf("INIT: %p %p\n", start, end);
+  assert(end - start > 1);
+  first_counter = start;
+}
+
+int main() {
+  assert(first_counter);
+  assert(*first_counter == 1);
+}