Fix small regression in Ada

gcc/
	* gimplify.cc (gimplify_save_expr): Add missing guard.
gcc/ada/
	* gcc-interface/trans.cc (gnat_gimplify_expr): Add missing guard.
gcc/testsuite/
	* gnat.dg/shift2.adb: New test.

1 files changed, 8 insertions, 0 deletions

diff --git a/gcc/testsuite/gnat.dg/shift2.adb b/gcc/testsuite/gnat.dg/shift2.adb
new file mode 100644
index 0000000..b45e440
--- /dev/null
+++ b/gcc/testsuite/gnat.dg/shift2.adb
@@ -0,0 +1,8 @@
+-- { dg-do compile }
+
+with Interfaces; use Interfaces;
+
+function Shift2 (V : Unsigned_32) return Unsigned_32 is
+begin
+  return Shift_Left (V, (case V is when 0 => 1, when others => 0));
+end;