1 files changed, 23 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.c-torture/compile/20020109-1.c b/gcc/testsuite/gcc.c-torture/compile/20020109-1.c
new file mode 100644
index 000000000..532fe6de2
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/compile/20020109-1.c
@@ -0,0 +1,23 @@
+/* This testcase ICEd when 2 different successors of a basic block
+   were successfully threaded and try_forward_edges was not expecting
+   that.  */
+
+typedef struct A
+{
+  struct A *s, *t;
+  unsigned int u;
+} A;
+
+void bar (A *);
+
+void
+foo (A *x, A *y, A *z)
+{
+  while (y
+	 && (((y && y->t && y->t->u) ? y : z)->t
+	     == ((x && x->t && x->t->u) ? x : z)->t))
+    y = y->s;
+
+  if (y)
+    bar (y);
+}