[v3,04/16] add testcases for type attributes

Commit Message

Luc Van Oostenryck Dec. 31, 2020, 10:10 a.m. UTC

Currently, type attributes are not handled correctly.

Add some testcases for them.

Signed-off-by: Luc Van Oostenryck <[e-mail]>
---
 validation/type-attribute-align.c | 20 ++++++++++++++++++
 validation/type-attribute-as.c    | 34 +++++++++++++++++++++++++++++++
 validation/type-attribute-mod.c   | 22 ++++++++++++++++++++
 validation/type-attribute-qual.c  | 15 ++++++++++++++
 4 files changed, 91 insertions(+)
 create mode 100644 validation/type-attribute-align.c
 create mode 100644 validation/type-attribute-as.c
 create mode 100644 validation/type-attribute-mod.c
 create mode 100644 validation/type-attribute-qual.c

Patch

diff --git a/validation/type-attribute-align.c b/validation/type-attribute-align.c
new file mode 100644
index 000000000000..d9358bff8327
--- /dev/null
+++ b/validation/type-attribute-align.c
@@ -0,0 +1,20 @@ 
+#define __aligned(N)	__attribute__((aligned(N)))
+#define alignof(X)	__alignof__(X)
+
+struct s {
+	short a, b, c;
+} __aligned(2*sizeof(short));
+
+static int fs(void) { return  sizeof(struct s); }
+static int fa(void) { return alignof(struct s); }
+
+void main(void)
+{
+	_Static_assert( sizeof(struct s) == 4 * sizeof(short), "size");
+	_Static_assert(alignof(struct s) == 2 * sizeof(short), "alignment");
+}
+
+/*
+ * check-name: type-attribute-align
+ * check-known-to-fail
+ */
diff --git a/validation/type-attribute-as.c b/validation/type-attribute-as.c
new file mode 100644
index 000000000000..b40b4e7dddf5
--- /dev/null
+++ b/validation/type-attribute-as.c
@@ -0,0 +1,34 @@ 
+#define	__as		__attribute__((address_space(__as)))
+
+struct s {
+	int i;
+} __as;
+
+
+extern void use0(void *);
+extern void use1(void __as *);
+
+void main(void)
+{
+	struct s s;
+	int i;
+
+	use0(&s);	// KO
+	use0(&i);	// OK
+	use1(&s);	// OK
+	use1(&i);	// KO
+}
+
+/*
+ * check-name: type-attribute-as
+ * check-known-to-fail
+ *
+ * check-error-start
+type-attribute-as.c:16:15: warning: incorrect type in argument 1 (different address spaces)
+type-attribute-as.c:16:15:    expected void *
+type-attribute-as.c:16:15:    got struct s __as *
+type-attribute-as.c:19:15: warning: incorrect type in argument 1 (different address spaces)
+type-attribute-as.c:19:15:    expected void __as *
+type-attribute-as.c:19:15:    got int *
+ * check-error-end
+ */
diff --git a/validation/type-attribute-mod.c b/validation/type-attribute-mod.c
new file mode 100644
index 000000000000..0e7b166a4aec
--- /dev/null
+++ b/validation/type-attribute-mod.c
@@ -0,0 +1,22 @@ 
+#define	__noderef	__attribute__((noderef))
+
+struct s {
+	int i;
+} __noderef;
+
+
+void main(void)
+{
+	struct s s;
+
+	s.i = 0;
+}
+
+/*
+ * check-name: type-attribute-mod
+ * check-known-to-fail
+ *
+ * check-error-start
+type-attribute-mod.c:12:9: warning: dereference of noderef expression
+ * check-error-end
+ */
diff --git a/validation/type-attribute-qual.c b/validation/type-attribute-qual.c
new file mode 100644
index 000000000000..62d8b98ee3df
--- /dev/null
+++ b/validation/type-attribute-qual.c
@@ -0,0 +1,15 @@ 
+static const struct s {
+	int x;
+} map[2];
+
+static void foo(struct s *p, int v)
+{
+	p->x += v;
+}
+
+/*
+ * check-name: type-attribute-qual
+ * check-description: When declaring a type and a variable in the same
+ *	declaration, ensure that type qualifiers apply to the variable
+ *	and not to the type.
+ */