pr22152.c: Fix undefined testcase.

	* gcc.target/i386/pr22152.c: Fix undefined testcase.  Remove
	unnecessary loop.  Run on 32-bit targets only.
	(dg-options): Remove -fno-tree-sink.

From-SVN: r247914

gcc/testsuite/ChangeLog

+2017-05-11  Uros Bizjak  <ubizjak@gmail.com>
+
+	* gcc.target/i386/pr22152.c: Fix undefined testcase.  Remove
+	unnecessary loop.  Run on 32-bit targets only.
+	(dg-options): Remove -fno-tree-sink.
+
 2017-05-11  Kelvin Nilsen  <kelvin@gcc.gnu.org>
 
 	* gcc.target/powerpc/cmpb-1.c: New test.

gcc/testsuite/gcc.target/i386/pr22152.c

-/* { dg-do compile } */
-/* { dg-options "-O2 -fno-tree-sink -msse2 -mtune=core2" } */
+/* { dg-do compile { target ia32 } } */
+/* { dg-options "-O2 -msse2 -mtune=core2" } */
 /* { dg-additional-options "-mno-vect8-ret-in-mem" { target *-*-vxworks* } } */
 /* { dg-additional-options "-mabi=sysv" { target x86_64-*-mingw* } } */
 
 #include <mmintrin.h>
 
+typedef __SIZE_TYPE__ size_t;
+
 __m64
-unsigned_add3 (const __m64 * a, const __m64 * b, unsigned int count)
+unsigned_add3 (const __m64 * a, const __m64 * b, size_t count)
 {
-  __m64 sum;
-  unsigned int i;
+  __m64 sum = { 0, 0 };
 
-  for (i = 1; i < count; i++)
-    sum = _mm_add_si64 (a[i], b[i]);
+  if (count > 0)
+    sum = _mm_add_si64 (a[count-1], b[count-1]);
 
   return sum;
 }