obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.

1 files changed, 52 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.dg/bf-ms-layout-3.c b/gcc/testsuite/gcc.dg/bf-ms-layout-3.c
new file mode 100644
index 000000000..a4e9ab3ff
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/bf-ms-layout-3.c
@@ -0,0 +1,52 @@
+/* Test for MS bitfield layout */
+/* { dg-do run { target *-*-interix* *-*-mingw* *-*-cygwin* i?86-*-* x86_64-*-* } } */
+
+extern void abort();
+
+struct s1_t {
+    char a;
+    char b __attribute__ ((aligned (16)));
+} __attribute__ ((ms_struct));
+struct s1_t s1;
+
+struct s2_t {
+  char a;
+  char b;
+} __attribute__ ((ms_struct));
+struct s2_t s2;
+
+struct s3_t {
+  __extension__ char a : 6;
+  char b __attribute__ ((aligned (16)));
+} __attribute__ ((ms_struct));
+struct s3_t s3;
+
+struct s4_t {
+  __extension__ char a : 6;
+  char b __attribute__ ((aligned (2)));
+} __attribute__ ((ms_struct));
+struct s4_t s4;
+
+struct s5_t {
+  __extension__ char a : 6;
+  char b __attribute__ ((aligned (1)));
+} __attribute__ ((ms_struct));
+struct s5_t s5;
+
+__extension__
+static __PTRDIFF_TYPE__ offs (const void *a, const void *b)
+{
+  return (__PTRDIFF_TYPE__) ((const char*)a  - (const char*)b);
+}
+
+int main()
+{
+  if (offs (&s1.b, &s1) != 16
+      || offs (&s2.b, &s2) != 1
+      || offs (&s3.b, &s3) != 16
+      || offs (&s4.b, &s4) != 2
+      || offs (&s5.b, &s5) != 1)
+    abort ();
+  return 0;
+}
+