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, 160 insertions, 0 deletions

diff --git a/gcc/testsuite/g++.old-deja/g++.abi/bitfields.C b/gcc/testsuite/g++.old-deja/g++.abi/bitfields.C
new file mode 100644
index 000000000..d5c319209
--- /dev/null
+++ b/gcc/testsuite/g++.old-deja/g++.abi/bitfields.C
@@ -0,0 +1,160 @@
+// { dg-do run { target i?86-*-linux* x86_64-*-linux* i?86-*-freebsd* } }
+// { dg-require-effective-target ilp32 }
+// { dg-options "-malign-double" }
+// Origin: Alex Samuel <samuel@codesourcery.com>
+
+/* Test the layout of bitfields in C aggretagtes for compliance with
+   the IA-64 ABI.  */
+
+#include <cstring>
+
+template<typename T>
+inline unsigned
+alignmentof ()
+{
+  struct S
+  {
+    char start_;
+    T object_;
+  };
+
+  return (unsigned) & ((S *) 0)->object_;
+}
+
+/* Computes the alignment, in bytes, of TYPE.  */
+
+#define alignof(type) (alignmentof<type> ())
+
+/* Returns true iff all the bits in the range 
+   START_BIT <= bit < START_BIT + NUM_BITS, and only those bits, are
+   set in the region of memory starting at BUF of LENGTH bytes.  */
+
+bool
+check_bits (char *buf,
+	    unsigned length,
+	    unsigned start_bit,
+	    unsigned num_bits)
+{
+  for (unsigned bit = 0; bit < 8 * length; ++bit) {
+    bool is_set = (buf[bit / 8] & (1 << (bit % 8))) != 0;
+    if (start_bit <= bit && bit < start_bit + num_bits) {
+      if (! is_set)
+	return false;
+    }
+    else {
+      if (is_set)
+	return false;
+    }
+  }
+  return true;
+}
+
+/* Creates a variable of type AGGREGATE, sets FIELD to -1, and
+   verifies that NUM_BITS bits starting at START_BIT, and no other
+   bits, are set.  If the check fails, returns with value RVAL.  */
+
+#define CHECK_FIELD(AGGREGATE, FIELD, START_BIT, NUM_BITS, RVAL)          \
+  do {                                                                    \
+    AGGREGATE a__;                                                        \
+    std::memset (& a__, 0, sizeof (a__));                                 \
+    a__.FIELD = -1;                                                       \
+    if (! check_bits ((char *) & a__, sizeof (a__), START_BIT, NUM_BITS)) \
+      return RVAL;                                                        \
+  } while (0);
+
+
+
+/* Structs S1, S2, S3, S4, and union U5 are taken from Intel, "IA-64
+   Software Conventions and Runtime Architecture Guide", version of
+   August 1999.  */
+
+struct S1
+{
+  int       j : 5;
+  int       k : 6;
+  int       m : 7;
+};
+
+#ifdef HAVE_IA64_TYPES
+struct S2
+{
+  short     s : 9;
+  __int64   j : 9;
+  char      c    ;
+  short     t : 9;
+  short     u : 9;
+  char      d    ;
+};
+#endif  /* HAVE_IA64_TYPES  */
+
+struct S3
+{
+  char      c    ;
+  short     s : 8;
+};
+
+union U4
+{
+  char      c    ;
+  short     s : 8;
+};
+
+struct S5
+{
+  char      c    ;
+  int         : 0;
+  char      d    ;
+  short       : 9;
+  char      e    ;
+  char        : 0;
+};
+
+
+int
+main ()
+{
+  if (sizeof (struct S1)		!=  4)
+    return 1;
+  if (alignof (struct S1)		!=  4)
+    return 2;
+  CHECK_FIELD (S1, j,  0,  5,  3);
+  CHECK_FIELD (S1, k,  5,  6,  4);
+  CHECK_FIELD (S1, m, 11,  7,  5);
+
+#ifdef HAVE_IA64_TYPES
+  if (sizeof (struct S2)		!= 16)
+    return 6;
+  if (alignof (struct S2)		!=  8)
+    return 7;
+  CHECK_FIELD (S2, s,  0,  9,  8);
+  CHECK_FIELD (S2, j,  9,  9,  9);
+  CHECK_FIELD (S2, c, 24,  8, 10);
+  CHECK_FIELD (S2, t, 32,  9, 11);
+  CHECK_FIELD (S2, u, 48,  9, 12);
+  CHECK_FIELD (S2, d, 64,  8, 13);
+#endif  /* HAVE_IA64_TYPES  */
+
+  if (sizeof (struct S3)		!=  2)
+    return 14;
+  if (sizeof (struct S3)		!=  2)
+    return 15;
+  CHECK_FIELD (S3, c,  0,  8, 16);
+  CHECK_FIELD (S3, s,  8,  8, 17);
+
+  if (sizeof (union U4) 		!=  2)
+    return 18;
+  if (alignof (union U4)		!=  2)
+    return 19;
+  CHECK_FIELD (U4, c,  0,  8, 20);
+  CHECK_FIELD (U4, s,  0,  8, 21);
+
+  if (sizeof (struct S5)		!=  9)
+    return 22;
+  if (alignof (struct S5)		!=  1)
+    return 23;
+  CHECK_FIELD (S5, c,  0,  8, 24);
+  CHECK_FIELD (S5, d, 32,  8, 25);
+  CHECK_FIELD (S5, e, 64,  8, 26);
+
+  return 0;
+}