1 files changed, 62 insertions, 0 deletions
diff --git a/gcc/testsuite/jit.dg/test-error-bad-bitcast.c b/gcc/testsuite/jit.dg/test-error-bad-bitcast.c
new file mode 100644
index 00000000000..642890605ad
--- /dev/null
+++ b/gcc/testsuite/jit.dg/test-error-bad-bitcast.c
@@ -0,0 +1,62 @@
+#include <stdlib.h>
+#include <stdio.h>
+
+#include "libgccjit.h"
+
+#include "harness.h"
+
+void
+create_code (gcc_jit_context *ctxt, void *user_data)
+{
+  /* Let's try to inject the equivalent of:
+
+     int
+     test_fn ()
+     {
+       char f[4096];
+       return bitcast(f, int);
+     }
+
+     and verify that the API complains about the bad cast.
+  */
+  gcc_jit_type *int_type =
+    gcc_jit_context_get_type (ctxt, GCC_JIT_TYPE_INT);
+  gcc_jit_type *char_type =
+    gcc_jit_context_get_type (ctxt, GCC_JIT_TYPE_CHAR);
+
+
+  gcc_jit_type *array_type =
+    gcc_jit_context_new_array_type (ctxt, NULL, char_type, 4096);
+
+  gcc_jit_function *test_fn =
+    gcc_jit_context_new_function (ctxt, NULL,
+                                  GCC_JIT_FUNCTION_EXPORTED,
+                                  int_type,
+                                  "test_fn",
+                                  0, NULL,
+                                  0);
+  gcc_jit_lvalue *f =
+    gcc_jit_function_new_local (
+      test_fn,
+      NULL,
+      array_type, "f");
+
+  gcc_jit_block *block = gcc_jit_function_new_block (test_fn, NULL);
+
+  gcc_jit_block_end_with_return (
+    block, NULL,
+    gcc_jit_context_new_bitcast (ctxt, NULL,
+			      gcc_jit_lvalue_as_rvalue (f),
+			      int_type));
+}
+
+void
+verify_code (gcc_jit_context *ctxt, gcc_jit_result *result)
+{
+  CHECK_VALUE (result, NULL);
+
+  /* Verify that the correct error message was emitted.  */
+  CHECK_STRING_VALUE (gcc_jit_context_get_first_error (ctxt),
+		      "bitcast with types of different sizes");
+}
+