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, 190 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.dg/vect/vect-shift-2.c b/gcc/testsuite/gcc.dg/vect/vect-shift-2.c
new file mode 100644
index 000000000..83211eba4
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/vect/vect-shift-2.c
@@ -0,0 +1,190 @@
+/* { dg-require-effective-target vect_shift } */
+/* { dg-require-effective-target vect_int } */
+/* Check the standard integer types for left and right shifts to see if the
+   compiler replaced a scalar instruction with a vector instruction whether the
+   correct value is generated.  */
+
+#ifdef TRACE
+#endif
+
+#include <stdarg.h>
+#include "tree-vect.h"
+
+#ifndef ALIGN
+#define ALIGN __attribute__((__aligned__(__BIGGEST_ALIGNMENT__)))
+#endif
+
+#ifndef NOINLINE
+#define NOINLINE __attribute__((__noinline__))
+#endif
+
+#ifdef TRACE
+#define TRACE_FUNC(PREFIX, NAME) printf (#PREFIX #NAME "\n")
+#define TRACE_DONE()  printf ("done!\n")
+#define TRACE_ABORT(I,E,G)						\
+do {									\
+  printf ("Element %d, expected 0x%lx, got 0x%lx\n",			\
+	  I, (long)(E), (long)(G));					\
+  abort ();								\
+} while (0)
+
+#else
+#define TRACE_FUNC(PREFIX, A)
+#define TRACE_DONE()
+#define TRACE_ABORT(I,E,G) abort ()
+#endif
+
+#define NAME(A,B) A ## B
+
+#define VECT_TESTS(PREFIX, TYPE, N)					\
+ /* Restrict the optimizer from optimizing the setup loops.  */		\
+volatile TYPE NAME (PREFIX, zero) = 0;					\
+									\
+TYPE NAME (PREFIX, a)[N] ALIGN;						\
+TYPE NAME (PREFIX, b)[N] ALIGN;						\
+TYPE NAME (PREFIX, c)[N] ALIGN;						\
+TYPE NAME (PREFIX, d)[N] ALIGN;						\
+									\
+static void NOINLINE							\
+NAME (PREFIX, lshift_2) (void)						\
+{									\
+  int i;								\
+									\
+  TRACE_FUNC (PREFIX, lshift_2);					\
+  for (i = 0; i < N; i++)						\
+    NAME (PREFIX, a)[i] = NAME (PREFIX, b)[i] << 2;			\
+}									\
+									\
+static void NOINLINE							\
+NAME (PREFIX, lshift_var) (int shift)					\
+{									\
+  int i;								\
+									\
+  TRACE_FUNC (PREFIX, lshift_var);					\
+  for (i = 0; i < N; i++)						\
+    NAME (PREFIX, a)[i] = NAME (PREFIX, b)[i] << shift;			\
+}									\
+									\
+static void NOINLINE							\
+NAME (PREFIX, lshift_vect) (void)					\
+{									\
+  int i;								\
+									\
+  TRACE_FUNC (PREFIX, lshift_vect);					\
+  for (i = 0; i < N; i++)						\
+    NAME (PREFIX, a)[i] = NAME (PREFIX, b)[i] << NAME (PREFIX, c)[i];	\
+}									\
+									\
+static void NOINLINE							\
+NAME (PREFIX, rshift_2) (void)						\
+{									\
+  int i;								\
+									\
+  TRACE_FUNC (PREFIX, rshift_2);					\
+  for (i = 0; i < N; i++)						\
+    NAME (PREFIX, a)[i] = NAME (PREFIX, b)[i] >> 2;			\
+}									\
+									\
+static void NOINLINE							\
+NAME (PREFIX, rshift_var) (int shift)					\
+{									\
+  int i;								\
+									\
+  TRACE_FUNC (PREFIX, rshift_var);					\
+  for (i = 0; i < N; i++)						\
+    NAME (PREFIX, a)[i] = NAME (PREFIX, b)[i] >> shift;			\
+}									\
+									\
+static void NOINLINE							\
+NAME (PREFIX, rshift_vect) (void)					\
+{									\
+  int i;								\
+									\
+  TRACE_FUNC (PREFIX, rshift_vect);					\
+  for (i = 0; i < N; i++)						\
+    NAME (PREFIX, a)[i] = NAME (PREFIX, b)[i] >> NAME (PREFIX, c)[i];	\
+}									\
+									\
+static void NOINLINE							\
+NAME (PREFIX, check) (void)						\
+{									\
+  int i;								\
+									\
+  TRACE_FUNC (PREFIX, check);						\
+  for (i = 0; i < N; i++)						\
+    if (NAME (PREFIX, a)[i] != NAME (PREFIX, d)[i])			\
+      TRACE_ABORT (i, NAME (PREFIX, d)[i], NAME (PREFIX, a)[i]);	\
+}									\
+									\
+static void NOINLINE							\
+NAME (PREFIX, tests) (void)						\
+{									\
+  int i;								\
+									\
+  TRACE_FUNC (PREFIX, tests);						\
+  for (i = 0; i < N; i++)						\
+    {									\
+      NAME (PREFIX, b)[i] = (i + NAME (PREFIX, zero));			\
+      NAME (PREFIX, c)[i] = 2;						\
+      NAME (PREFIX, d)[i] = (i + NAME (PREFIX, zero)) << 2;		\
+    }									\
+									\
+  NAME (PREFIX, lshift_2) ();						\
+  NAME (PREFIX, check) ();						\
+									\
+  NAME (PREFIX, lshift_var) (2);					\
+  NAME (PREFIX, check) ();						\
+									\
+  NAME (PREFIX, lshift_vect) ();					\
+  NAME (PREFIX, check) ();						\
+									\
+  for (i = 0; i < N; i++)						\
+    {									\
+      NAME (PREFIX, b)[i] = ((i + NAME (PREFIX, zero)) << 4)		\
+	| (((TYPE)0x80) << ((sizeof (TYPE) * 8) - 8));			\
+      NAME (PREFIX, c)[i] = 2;						\
+      NAME (PREFIX, d)[i] = (TYPE)((NAME (PREFIX, b)[i]			\
+				    + NAME (PREFIX, zero)) >> 2);	\
+    }									\
+									\
+  NAME (PREFIX, rshift_2) ();						\
+  NAME (PREFIX, check) ();						\
+									\
+  NAME (PREFIX, rshift_var) (2);					\
+  NAME (PREFIX, check) ();						\
+									\
+  NAME (PREFIX, rshift_vect) ();					\
+  NAME (PREFIX, check) ();						\
+}
+
+VECT_TESTS(uc_, unsigned char,  16)
+VECT_TESTS(us_, unsigned short, 32)
+VECT_TESTS(ui_, unsigned int,   32)
+VECT_TESTS(ul_, unsigned long,  32)
+
+VECT_TESTS(sc_, signed char,    16)
+VECT_TESTS(ss_, short,          32)
+VECT_TESTS(si_, int,            32)
+VECT_TESTS(sl_, long,           32)
+
+int main ()
+{
+  int i;
+
+  check_vect ();
+
+  uc_tests ();
+  us_tests ();
+  ui_tests ();
+  ul_tests ();
+
+  sc_tests ();
+  ss_tests ();
+  si_tests ();
+  sl_tests ();
+
+  TRACE_DONE ();
+  return 0;
+}
+
+/* { dg-final { cleanup-tree-dump "vect" } } */