sdcc-3.9.0 fork implementing GNU assembler syntax

This fork aims to provide better support for stm8-binutils

1 files changed, 86 insertions, 0 deletions

diff --git a/support/regression/tests/structassign.c b/support/regression/tests/structassign.c
new file mode 100644
index 0000000..d6db3cd
--- /dev/null
+++ b/support/regression/tests/structassign.c
@@ -0,0 +1,86 @@
+/*  Test assignment of one struct/union to another, including transitivity.
+
+    type: char, int, long
+
+ */
+#include <testfwk.h>
+
+/* declare some structs and unions */
+struct t { {type} a; };
+struct s { {type} a; {type} b; };
+
+struct t t1 = { 1 };
+struct t t2 = { 2 };
+
+struct s s1 = { 1, 2 };
+struct s s2 = { 3, 4 };
+#ifndef __SDCC_pdk14 // Lack of memory
+struct s s3 = { 5, 6 };
+
+union u { {type} a; float b; char c; };
+
+union u u1, u2, u3;
+#endif
+
+/* struct: simple assignment */
+void
+testSimpleStructAssignment(void)
+{
+  s1 = s2;
+  ASSERT(s1.a == 3);
+  ASSERT(s1.b == 4);
+
+  t1 = t2;
+  ASSERT(t1.a == 2);
+}
+
+/* struct: transitive assignment */
+void
+testTransitiveStructAssignment(void)
+{
+#ifndef __SDCC_pdk14 // Lack of memory
+  s1 = s2 = s3;
+  ASSERT(s1.a == 5);
+  ASSERT(s1.b == 6);
+  ASSERT(s2.a == 5);
+  ASSERT(s2.b == 6);
+#endif
+}
+
+/* union: simple assignment */
+void
+testSimpleUnionAssignment(void)
+{
+#ifndef __SDCC_pdk14 // Lack of memory
+  u1.b = 0.0f;
+  u2.b = -1.5f;
+  u1 = u2;
+  ASSERT(u1.b == -1.5f);
+#endif
+}
+
+/* union: transitive assignment */
+void
+testTransitiveUnionAssignment(void)
+{
+#ifndef __SDCC_pdk14 // Lack of memory
+  u1.b = 0.0f;
+  u2.b = 0.1f;
+  u3.b = -1.5f;
+  u1 = u2 = u3;
+  ASSERT(u1.b == -1.5f);
+  ASSERT(u2.b == -1.5f);
+#endif
+}
+
+/* test for unintended double evaluation */
+void
+testUnintendedDoubleEval(void)
+{
+#ifndef __SDCC_pdk14 // Lack of memory
+  struct s ss[3];
+  int n = 2;
+  ss[2] = ss[--n] = ss[0];
+  ASSERT(n == 1);
+#endif
+}