PR tree-opt/22116

        * tree-ssa-pre.c (create_expression_by_pieces): Set
        DECL_COMPLEX_GIMPLE_REG_P.
        (insert_into_preds_of_block): Likewise.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@101177 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 17 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.c-torture/compile/complex-3.c b/gcc/testsuite/gcc.c-torture/compile/complex-3.c
new file mode 100644
index 00000000000..f12a8f9da4a
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/compile/complex-3.c
@@ -0,0 +1,17 @@
+/* PR 22116 */
+
+void g(_Complex float);
+_Complex float f(int data, _Complex float x, _Complex float y)
+{
+  _Complex float i, t;
+  if (data) 
+  {
+    i = x +  __imag__ y;
+    g(i);
+  }
+  else
+    i = 5;
+  t = x + __imag__ y;
+  g(t);
+  return t * i;
+}