Parse/Sema: Add support for '#pragma options align=packed', which, it should be

noted, is not the same as __attribute__((packed)). That would be ridiculous!

llvm-svn: 104865

1 files changed, 23 insertions, 0 deletions

diff --git a/clang/test/Sema/pragma-align-packed.c b/clang/test/Sema/pragma-align-packed.c
new file mode 100644
index 00000000000..6c9b06c6d6f
--- /dev/null
+++ b/clang/test/Sema/pragma-align-packed.c
@@ -0,0 +1,23 @@
+// RUN: %clang-cc1 -triple i386-apple-darwin9 -fsyntax-only -verify %s
+
+#pragma pack(push, 1)
+struct s0 {
+  char f0;
+  int  f1 __attribute__((aligned(4)));
+};
+extern int a[sizeof(struct s0) == 5 ? 1 : -1];
+#pragma pack(pop)
+
+struct __attribute__((packed)) s1 {
+  char f0;
+  int  f1 __attribute__((aligned(4)));
+};
+extern int a[sizeof(struct s1) == 8 ? 1 : -1];
+
+#pragma options align=packed
+struct s2 {
+  char f0;
+  int  f1 __attribute__((aligned(4)));
+};
+extern int a[sizeof(struct s2) == 5 ? 1 : -1];
+#pragma options align=reset