--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/gcc.dg/pr43058.c	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,21 @@
+/* PR debug/43058 */
+/* { dg-do compile } */
+/* { dg-options "-g -O2" } */
+/* { dg-timeout-factor 4 } */
+
+extern void *f1 (void *, void *, void *);
+extern void *f2 (const char *, int, int, int, void *(*) ());
+extern void *f3 (const char *);
+extern void *f4 (void *s);
+extern void *f5 (void *);
+
+void test (void)
+{
+#define X1 f1 (f2 ("a", 1, 0, 0, f5), \
+	       f4 (({ const char *a = "b"; f3 (a); })), \
+	       ({ const char *a = "c"; f3 (a); }));
+#define X2 X1 X1 X1 X1 X1 X1 X1 X1 X1 X1
+#define X3 X2 X2 X2 X2 X2 X2 X2 X2 X2 X2
+#define X4 X3 X3 X3 X3 X3 X3 X3 X3 X3 X3
+  X4 X4
+}