1 files changed, 33 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/torture/pr39074.c b/gcc/testsuite/gcc.dg/torture/pr39074.c
new file mode 100644
index 000000000..fe35cd908
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/torture/pr39074.c
@@ -0,0 +1,33 @@
+/* { dg-do run } */
+/* { dg-options "-fdump-tree-alias" } */
+/* { dg-skip-if "" { *-*-* } { "-O0" } { "" } } */
+
+typedef __PTRDIFF_TYPE__ intptr_t;
+
+int i;
+void __attribute__((noinline))
+foo(long b, intptr_t q)
+{
+  int *y;
+  int **a = &y, **x;
+  int ***p;
+  if (b)
+    p = (int ***)q;
+  else
+    p = &a;
+  x = *p;
+  *x = &i;  /* *ANYTHING = &i has to make sure that y points to i.  */
+  *y = 0;
+}
+extern void abort (void);
+int main()
+{
+  i = 1;
+  foo (0, 0);
+  if (i != 0)
+    abort ();
+  return 0;
+}
+
+/* { dg-final { scan-tree-dump "y.._., points-to vars: { i }" "alias" } } */
+/* { dg-final { cleanup-tree-dump "alias" } } */