sdcc-3.9.0 fork implementing GNU assembler syntax

This fork aims to provide better support for stm8-binutils

1 files changed, 43 insertions, 0 deletions

diff --git a/support/regression/tests/bug-2761.c b/support/regression/tests/bug-2761.c
new file mode 100644
index 0000000..872310c
--- /dev/null
+++ b/support/regression/tests/bug-2761.c
@@ -0,0 +1,43 @@
+/* bug-2761.c
+   Incomplete use vector from lospre confused live range separation
+ */
+
+#include <testfwk.h>
+
+int *dot;
+int *dol;
+int fchange;
+
+int array[4] = {0, 1, 2, 3};
+
+void rdelete(int *ad1, int *ad2)
+{
+    register int  *a1, *a2, *a3;
+
+    a1 = ad1;
+    a2 = ad2+1;
+    a3 = dol;
+    dol -= a2 - a1;
+    do {
+        *a1++ = *a2++;
+    } while (a2 <= a3);
+    a1 = ad1;
+    if (a1 > dol)
+        a1 = dol;
+    dot = a1;
+    fchange = 1;
+}
+
+void testBug(void)
+{
+  dol = array + 2;
+  rdelete(array + 0, array + 0);
+
+  ASSERT(array[0] == 1);
+  ASSERT(array[1] == 2);
+  ASSERT(array[2] == 2);
+  ASSERT(array[3] == 3);
+
+  ASSERT(dot == array + 0);
+}
+