Accesses to bitfields must, of course, not be optimized away.
This is currently not the case.
Add a testcase for it.
Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@xxxxxxxxx>
---
validation/optim/volatile-bitfield.c | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
create mode 100644 validation/optim/volatile-bitfield.c
diff --git a/validation/optim/volatile-bitfield.c b/validation/optim/volatile-bitfield.c
new file mode 100644
index 000000000..c28efb09a
--- /dev/null
+++ b/validation/optim/volatile-bitfield.c
@@ -0,0 +1,17 @@
+struct s {
+ int f:3;
+};
+
+void foo(volatile struct s *p)
+{
+ p->f;
+}
+
+/*
+ * check-name: volatile-bitfield
+ * check-command: test-linearize -Wno-decl $file
+ * check-known-to-fail
+ *
+ * check-output-ignore
+ * check-output-contains: load\\.
+ */
--
2.18.0
