sdcc-3.9.0 fork implementing GNU assembler syntax

This fork aims to provide better support for stm8-binutils

1 files changed, 18 insertions, 0 deletions

diff --git a/support/regression/tests/bug-2133.c b/support/regression/tests/bug-2133.c
new file mode 100644
index 0000000..6ac3263
--- /dev/null
+++ b/support/regression/tests/bug-2133.c
@@ -0,0 +1,18 @@
+/*	bug-2133.c
+*/
+
+#include <testfwk.h>
+#include <stdint.h>
+
+typedef struct ABC { uint16_t aa, bb, cc; } ABC;
+
+char __xdata buf[8] = { 1, 2, 3, 4, 5, 6, 7, 8 };
+ABC __xdata Abc = { 0x1111, 0x2222, 0x3333 };
+
+void testBug2133(void)
+{
+	ASSERT ( *(char*)&((*(ABC*) buf).cc) == 5); // no errors or warnings; this changes to __data pointer
+	ASSERT ( *(char*)&((*(ABC*)&buf).cc) == 5); // sub-optimal code but okay
+	ASSERT ( *(char*)&(((ABC*) buf)->cc) == 5); // uses generic pointer, otherwise okay
+	ASSERT ( *(char*)&(((ABC*)&buf)->cc) == 5); // same sub-optimal code but okay
+}