1 files changed, 26 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/pr47899.c b/gcc/testsuite/gcc.dg/pr47899.c
new file mode 100644
index 000000000..c83bb85e3
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr47899.c
@@ -0,0 +1,26 @@
+/* PR rtl-optimization/47899 */
+/* { dg-do compile } */
+/* { dg-options "-O -funroll-loops" } */
+
+extern unsigned int a, b, c;
+extern int d;
+
+static int
+foo (void)
+{
+lab:
+  if (b)
+    for (d = 0; d >= 0; d--)
+      if (a || c)
+	for (; c; c++)
+	  ;
+      else
+	goto lab;
+}
+
+int
+main ()
+{
+  foo ();
+  return 0;
+}