1 files changed, 28 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.c-torture/execute/20020107-1.c b/gcc/testsuite/gcc.c-torture/execute/20020107-1.c
new file mode 100644
index 000000000..d5bbcc413
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/execute/20020107-1.c
@@ -0,0 +1,28 @@
+/* This testcase failed because - 1 - buf was simplified into ~buf and when
+   later expanding it back into - buf + -1, -1 got lost.  */
+
+extern void abort (void);
+extern void exit (int);
+
+static void
+bar (int x)
+{
+  if (!x)
+    abort ();
+}
+
+char buf[10];
+
+inline char *
+foo (char *tmp)
+{
+  asm ("" : "=r" (tmp) : "0" (tmp));
+  return tmp + 2;
+}
+
+int
+main (void)
+{
+  bar ((foo (buf) - 1 - buf) == 1);
+  exit (0);
+}