1 files changed, 25 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/complex-3.c b/gcc/testsuite/gcc.dg/complex-3.c
new file mode 100644
index 000000000..54ec82c0d
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/complex-3.c
@@ -0,0 +1,25 @@
+/* Verify that rtl expansion cleanup doesn't get too aggressive about
+   code dealing with complex CONCATs.  */
+/* { dg-do run } */
+/* { dg-options "-O -fno-tree-sra" } */
+
+extern void abort (void);
+extern void exit (int);
+
+__complex__ float foo (void)
+{
+  __complex__ float f[1];
+  __real__ f[0] = 1;
+  __imag__ f[0] = 1;
+  f[0] = __builtin_conjf (f[0]);
+  return f[0];
+}
+
+int main (void)
+{
+  __complex__ double d[1];
+  d[0] = foo ();
+  if (__real__ d[0] != 1 || __imag__ d[0] != -1)
+    abort ();
+  exit (0);
+}