[cfi] Test case for weak symbol handling.

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@286637 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 14 insertions, 0 deletions

diff --git a/test/cfi/icall/weak.c b/test/cfi/icall/weak.c
new file mode 100644
index 000000000..8acf41eb9
--- /dev/null
+++ b/test/cfi/icall/weak.c
@@ -0,0 +1,14 @@
+// Test that weak symbols stay weak.
+// RUN: %clang_cfi -lm -o %t1 %s && %t1
+
+__attribute__((weak)) void does_not_exist(void);
+
+__attribute__((noinline))
+void foo(void (*p)(void)) {
+  p();
+}
+
+int main(int argc, char **argv) {
+  if (does_not_exist)
+    foo(does_not_exist);
+}