1 files changed, 37 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.c-torture/execute/20060910-1.c b/gcc/testsuite/gcc.c-torture/execute/20060910-1.c
new file mode 100644
index 000000000..78bf30139
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/execute/20060910-1.c
@@ -0,0 +1,37 @@
+/* PR rtl-optimization/28636 */
+/* Origin: Andreas Schwab <schwab@suse.de> */
+
+extern void abort(void);
+
+struct input_ty
+{
+  unsigned char *buffer_position;
+  unsigned char *buffer_end;
+};
+
+int input_getc_complicated (struct input_ty *x) { return 0; }
+
+int check_header (struct input_ty *deeper)
+{
+  unsigned len;
+  for (len = 0; len < 6; len++)
+    if (((deeper)->buffer_position < (deeper)->buffer_end
+         ? *((deeper)->buffer_position)++
+         : input_getc_complicated((deeper))) < 0)
+      return 0;
+  return 1;
+}
+
+struct input_ty s;
+unsigned char b[6];
+
+int main (void)
+{
+  s.buffer_position = b;
+  s.buffer_end = b + sizeof b;
+  if (!check_header(&s))
+    abort();
+  if (s.buffer_position != s.buffer_end)
+    abort();
+  return 0;
+}