bad-goto: add testcase for 'jump inside discarded expression statement'

A goto done into an piece of code discarded at expand or
linearize time will produce an invalid IR.

Add a testcase for it.

Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>

2 files changed, 57 insertions, 0 deletions

diff --git a/validation/label-stmt-expr1.c b/validation/label-stmt-expr1.c
new file mode 100644
index 00000000..339217dc
--- /dev/null
+++ b/validation/label-stmt-expr1.c
@@ -0,0 +1,29 @@
+static int foo(void)
+{
+	goto l;
+	({
+l:
+		0;
+	});
+}
+
+static void bar(void)
+{
+	({
+l:
+		0;
+	});
+	goto l;
+}
+
+/*
+ * check-name: label-stmt-expr1
+ * check-known-to-fail
+ *
+ * check-error-start
+label-stmt-expr1.c:3:9: error: label 'l' used outside statement expression
+label-stmt-expr1.c:5:1:    label 'l' defined here
+label-stmt-expr1.c:16:9: error: label 'l' used outside statement expression
+label-stmt-expr1.c:13:1:    label 'l' defined here
+ * check-error-end
+ */
diff --git a/validation/linear/goto-and-expr-stmt0.c b/validation/linear/goto-and-expr-stmt0.c
new file mode 100644
index 00000000..54881353
--- /dev/null
+++ b/validation/linear/goto-and-expr-stmt0.c
@@ -0,0 +1,28 @@
+int t(void)
+{
+	goto inside;
+	return 1 ? 2 : ({
+inside:
+			return 3;
+			4;
+		    });
+}
+
+void f(int x, int y)
+{
+	1 ? x : ({
+a:
+		 y;
+	});
+	goto a;
+}
+
+/*
+ * check-name: goto-and-expr-stmt0
+ * check-command: test-linearize -Wno-decl $file
+ * check-known-to-fail
+ *
+ * check-output-ignore
+ * check-output-excludes: END
+ * check-error-ignore
+ */