[PATCH][ARM] New testcases for NEON

[Andrew Stubbs <ams at codesourcery dot com>]

Hi,

This old patch has been carried in the CodeSourcery toolchain for some 
time now. It just adds a few new testcases for vectorization.

OK?

Andrew
2008-12-03  Daniel Jacobowitz  <dan@codesourcery.com>

	gcc/testsuite/
	* gcc.dg/vect/vect-shift-3.c, gcc.dg/vect/vect-shift-4.c: New.
	* lib/target-supports.exp (check_effective_target_vect_shift_char): New
	function.

--- /dev/null
+++ b/gcc/testsuite/gcc.dg/vect/vect-shift-3.c
@@ -0,0 +1,37 @@
+/* { dg-require-effective-target vect_shift } */
+/* { dg-require-effective-target vect_int } */
+
+#include "tree-vect.h"
+
+#define N 32
+
+unsigned short dst[N] __attribute__((aligned(N)));
+unsigned short src[N] __attribute__((aligned(N)));
+
+__attribute__ ((noinline))
+void array_shift(void)
+{
+  int i;
+  for (i = 0; i < N; i++)
+    dst[i] = src[i] >> 3;
+}
+
+int main()
+{
+  volatile int i;
+  check_vect ();
+
+  for (i = 0; i < N; i++)
+    src[i] = i << 3;
+
+  array_shift ();
+
+  for (i = 0; i < N; i++)
+    if (dst[i] != i)
+      abort ();
+
+  return 0;
+}
+
+/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" } } */
+/* { dg-final { cleanup-tree-dump "vect" } } */
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/vect/vect-shift-4.c
@@ -0,0 +1,37 @@
+/* { dg-require-effective-target vect_shift_char } */
+/* { dg-require-effective-target vect_int } */
+
+#include "tree-vect.h"
+
+#define N 32
+
+unsigned char dst[N] __attribute__((aligned(N)));
+unsigned char src[N] __attribute__((aligned(N)));
+
+__attribute__ ((noinline))
+void array_shift(void)
+{
+  int i;
+  for (i = 0; i < N; i++)
+    dst[i] = src[i] >> 3;
+}
+
+int main()
+{
+  volatile int i;
+  check_vect ();
+
+  for (i = 0; i < N; i++)
+    src[i] = i << 3;
+
+  array_shift ();
+
+  for (i = 0; i < N; i++)
+    if (dst[i] != i)
+      abort ();
+
+  return 0;
+}
+
+/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" } } */
+/* { dg-final { cleanup-tree-dump "vect" } } */
--- a/gcc/testsuite/lib/target-supports.exp
+++ b/gcc/testsuite/lib/target-supports.exp
@@ -2310,6 +2310,26 @@ proc check_effective_target_vect_shift_scalar { } {
 }
 
 
+# Return 1 if the target supports hardware vector shift operation for char.
+
+proc check_effective_target_vect_shift_char { } {
+    global et_vect_shift_char_saved
+
+    if [info exists et_vect_shift_char_saved] {
+	verbose "check_effective_target_vect_shift_char: using cached result" 2
+    } else {
+	set et_vect_shift_char_saved 0
+	if { ([istarget powerpc*-*-*]
+             && ![istarget powerpc-*-linux*paired*])
+	     || [check_effective_target_arm32] } {
+	   set et_vect_shift_char_saved 1
+	}
+    }
+
+    verbose "check_effective_target_vect_shift_char: returning $et_vect_shift_char_saved" 2
+    return $et_vect_shift_char_saved
+}
+
 # Return 1 if the target supports hardware vectors of long, 0 otherwise.
 #
 # This can change for different subtargets so do not cache the result.