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2011-04-21 Andrew Stubbs <ams@codesourcery.com>
Backport from FSF:
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.
=== added file 'gcc/testsuite/gcc.dg/vect/vect-shift-3.c'
--- old/gcc/testsuite/gcc.dg/vect/vect-shift-3.c 1970-01-01 00:00:00 +0000
+++ new/gcc/testsuite/gcc.dg/vect/vect-shift-3.c 2011-04-21 13:51:06 +0000
@@ -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" } } */
=== added file 'gcc/testsuite/gcc.dg/vect/vect-shift-4.c'
--- old/gcc/testsuite/gcc.dg/vect/vect-shift-4.c 1970-01-01 00:00:00 +0000
+++ new/gcc/testsuite/gcc.dg/vect/vect-shift-4.c 2011-04-21 13:51:06 +0000
@@ -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" } } */
=== modified file 'gcc/testsuite/lib/target-supports.exp'
--- old/gcc/testsuite/lib/target-supports.exp 2011-02-19 15:31:15 +0000
+++ new/gcc/testsuite/lib/target-supports.exp 2011-04-21 13:51:06 +0000
@@ -2308,6 +2308,26 @@
}
+# 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.
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