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-rw-r--r--test/safestack/buffer-copy-vla.c26
1 files changed, 26 insertions, 0 deletions
diff --git a/test/safestack/buffer-copy-vla.c b/test/safestack/buffer-copy-vla.c
new file mode 100644
index 000000000000..356a1ac5c65c
--- /dev/null
+++ b/test/safestack/buffer-copy-vla.c
@@ -0,0 +1,26 @@
+// RUN: %clang_safestack %s -o %t
+// RUN: %run %t
+
+#include "utils.h"
+
+// Test that loads/stores work correctly for VLAs on the unsafe stack.
+
+int main(int argc, char **argv)
+{
+ int i = 128;
+ break_optimization(&i);
+ char buffer[i];
+
+ // check that we can write to a buffer
+ for (i = 0; argv[0][i] && i < sizeof (buffer) - 1; ++i)
+ buffer[i] = argv[0][i];
+ buffer[i] = '\0';
+
+ break_optimization(buffer);
+
+ // check that we can read from a buffer
+ for (i = 0; argv[0][i] && i < sizeof (buffer) - 1; ++i)
+ if (buffer[i] != argv[0][i])
+ return 1;
+ return 0;
+}