1 files changed, 25 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.c-torture/execute/20021204-1.c b/gcc/testsuite/gcc.c-torture/execute/20021204-1.c
new file mode 100644
index 000000000..e92c408a7
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/execute/20021204-1.c
@@ -0,0 +1,25 @@
+/* This test was miscompiled when using sibling call optimization,
+   because X ? Y : Y - 1 optimization changed X into !X in place
+   and haven't reverted it if do_store_flag was successful, so
+   when expanding the expression the second time it was
+   !X ? Y : Y - 1.  */
+
+extern void abort (void);
+extern void exit (int);
+
+void foo (int x)
+{
+  if (x != 1)
+    abort ();
+}
+
+int z;
+
+int main (int argc, char **argv)
+{
+  char *a = "test";
+  char *b = a + 2;
+
+  foo (z > 0 ? b - a : b - a - 1);
+  exit (0);
+}