1 files changed, 28 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.c-torture/execute/20030828-2.c b/gcc/testsuite/gcc.c-torture/execute/20030828-2.c
new file mode 100644
index 000000000..0c3a195e6
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/execute/20030828-2.c
@@ -0,0 +1,28 @@
+struct rtx_def
+{
+  int code;
+};
+
+main()
+{
+  int tmp[2];
+  struct rtx_def *r, s;
+  int *p, *q;
+
+  /* The alias analyzer was creating the same memory tag for r, p and q
+     because 'struct rtx_def *' is type-compatible with 'int *'.  However,
+     the alias set of 'int[2]' is not the same as 'int *', so variable
+     'tmp' was deemed not aliased with anything.  */
+  r = &s;
+  r->code = 39;
+
+  /* If 'r' wasn't declared, then q and tmp would have had the same memory
+     tag.  */
+  p = tmp;
+  q = p + 1;
+  *q = 0;
+  tmp[1] = 39;
+  if (*q != 39)
+    abort ();
+  exit (0);
+}