2008-08-28 Xuepeng Guo <xuepeng.guo@intel.com>

[pf3gnuchains/gcc-fork.git] / gcc / testsuite / gcc.target / i386 / sse2-psubsw-1.c

diff --git a/gcc/testsuite/gcc.target/i386/sse2-psubsw-1.c b/gcc/testsuite/gcc.target/i386/sse2-psubsw-1.c
new file mode 100644 (file)
index 0000000..85fdbeb
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/sse2-psubsw-1.c
@@ -0,0 +1,48 @@
+/* { dg-do run } */
+/* { dg-options "-O2 -msse2" } */
+
+#ifndef CHECK_H
+#define CHECK_H "sse2-check.h"
+#endif
+
+#ifndef TEST
+#define TEST sse2_test
+#endif
+
+#include CHECK_H
+
+#include <emmintrin.h>
+
+static __m128i
+__attribute__((noinline, unused))
+test (__m128i s1, __m128i s2)
+{
+  return _mm_subs_epi16 (s1, s2); 
+}
+
+static void
+TEST (void)
+{
+  union128i_w u, s1, s2;
+  short e[8];
+  int i, tmp;
+   
+  s1.x = _mm_set_epi16 (10,20,30,90,-80,-40,-100,-15);
+  s2.x = _mm_set_epi16 (11, 98, 76, -100, -34, -78, -39, 14);
+  u.x = test (s1.x, s2.x); 
+   
+  for (i = 0; i < 8; i++)
+    {
+      tmp = s1.a[i] - s2.a[i];
+      
+      if (tmp > 32767)
+        tmp = 32767;
+      if (tmp < -32768)
+        tmp = -32768;
+      
+      e[i] = tmp;
+    }
+
+  if (check_union128i_w (u, e))
+    abort ();
+}