re PR middle-end/25125 ((short) ((int)(unsigned short) + (int)) is done in the wrong type)

        PR tree-optimization/25125
        * gcc.dg/vect/wrapv-vect-7.c, gcc.dg/vect/wrapv-vect-reduc-2char.c,
        gcc.dg/vect/wrapv-vect-reduc-2short.c: New tests.

From-SVN: r111452

3 files changed, 148 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.dg/vect/wrapv-vect-7.c b/gcc/testsuite/gcc.dg/vect/wrapv-vect-7.c
new file mode 100644
index 0000000..ffc5eac
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/vect/wrapv-vect-7.c
@@ -0,0 +1,51 @@
+/* { dg-require-effective-target vect_int } */
+
+#include <stdarg.h>
+#include "tree-vect.h"
+
+#define N 128
+
+int main1 ()
+{
+  int i;
+  short sa[N];
+  short sb[N];
+  
+  for (i = 0; i < N; i++)
+    {
+      sb[i] = 5;
+    }
+
+  /* check results:  */
+  for (i = 0; i < N; i++)
+    {
+      if (sb[i] != 5)
+        abort ();
+    }
+  
+  for (i = 0; i < N; i++)
+    {
+      sa[i] = sb[i] + (short)100;
+    }
+
+  /* check results:  */
+  for (i = 0; i < N; i++)
+    {
+      if (sa[i] != 105)
+        abort ();
+    }
+  
+  return 0;
+}
+
+int main (void)
+{ 
+  check_vect ();
+  
+  return main1 ();
+}
+
+/* Fails for 32-bit targets that don't vectorize PLUS.  */
+/* { dg-final { scan-tree-dump-times "vectorized 2 loops" 1 "vect" } } */
+/* { dg-final { scan-tree-dump-times "Vectorizing an unaligned access" 0 "vect" } } */
+/* { dg-final { cleanup-tree-dump "vect" } } */
diff --git a/gcc/testsuite/gcc.dg/vect/wrapv-vect-reduc-2char.c b/gcc/testsuite/gcc.dg/vect/wrapv-vect-reduc-2char.c
new file mode 100644
index 0000000..aecf8a5
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/vect/wrapv-vect-reduc-2char.c
@@ -0,0 +1,49 @@
+/* { dg-require-effective-target vect_int } */
+
+#include <stdarg.h>
+#include "tree-vect.h"
+
+#define N 16
+#define DIFF 121
+
+void main1 (signed char x, signed char max_result, signed char min_result)
+{
+  int i;
+  signed char b[N] = {1,2,3,6,8,10,12,14,16,18,20,22,24,26,28,30};
+  signed char c[N] = {1,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15};
+  signed char diff = 2;
+  signed char max = x;
+  signed char min = x;
+
+  for (i = 0; i < N; i++) {
+    diff += (signed char)(b[i] - c[i]);
+  }
+
+  for (i = 0; i < N; i++) {
+    max = max < c[i] ? c[i] : max;
+  }
+
+  for (i = 0; i < N; i++) {
+    min = min > c[i] ? c[i] : min;
+  }
+
+  /* check results:  */
+  if (diff != DIFF)
+    abort ();
+  if (max != max_result)
+    abort ();
+  if (min != min_result)
+    abort ();
+}
+
+int main (void)
+{ 
+  check_vect ();
+  
+  main1 (100, 100, 1);
+  main1 (0, 15, 0);
+  return 0;
+}
+
+/* { dg-final { scan-tree-dump-times "vectorized 3 loops" 1 "vect" { xfail vect_no_int_max } } } */
+/* { dg-final { cleanup-tree-dump "vect" } } */
diff --git a/gcc/testsuite/gcc.dg/vect/wrapv-vect-reduc-2short.c b/gcc/testsuite/gcc.dg/vect/wrapv-vect-reduc-2short.c
new file mode 100644
index 0000000..4476c83
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/vect/wrapv-vect-reduc-2short.c
@@ -0,0 +1,48 @@
+/* { dg-require-effective-target vect_int } */
+
+#include <stdarg.h>
+#include "tree-vect.h"
+
+#define N 16
+#define DIFF 242
+
+void main1 (short x, short max_result, short min_result)
+{
+  int i;
+  short b[N] = {1,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45};
+  short c[N] = {1,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15};
+  short diff = 2;
+  short max = x;
+  short min = x;
+
+  for (i = 0; i < N; i++) {
+    diff += (short)(b[i] - c[i]);
+  }
+  for (i = 0; i < N; i++) {
+    max = max < c[i] ? c[i] : max;
+  }
+
+  for (i = 0; i < N; i++) {
+    min = min > c[i] ? c[i] : min;
+  }
+
+  /* check results:  */
+  if (diff != DIFF)
+    abort ();
+  if (max != max_result)
+    abort ();
+  if (min != min_result)
+    abort ();
+}
+
+int main (void)
+{ 
+  check_vect ();
+  
+  main1 (100, 100, 1);
+  main1 (0, 15, 0);
+  return 0;
+}
+
+/* { dg-final { scan-tree-dump-times "vectorized 3 loops" 1 "vect" { xfail vect_no_int_max } } } */
+/* { dg-final { cleanup-tree-dump "vect" } } */