--- /dev/null
+/* PR target/21149 */
+/* { dg-do run } */
+/* { dg-options "-O2 -msse" } */
+#include <xmmintrin.h>
+#include "../../gcc.dg/i386-cpuid.h"
+
+extern void abort (void);
+
+void
+__attribute__((noinline))
+check (__m128 x, float a, float b, float c, float d)
+{
+ union { __m128 m; float f[4]; } u;
+ u.m = x;
+ if (u.f[0] != a || u.f[1] != b || u.f[2] != c || u.f[3] != d)
+ abort ();
+}
+
+static inline
+void
+foo (__m128 *x)
+{
+ __m128 y = _mm_setzero_ps ();
+ __m128 v = _mm_movehl_ps (y, *x);
+ __m128 w = _mm_movehl_ps (*x, y);
+ check (*x, 9, 1, 2, -3);
+ check (v, 2, -3, 0, 0);
+ check (w, 0, 0, 2, -3);
+}
+
+void
+__attribute__((noinline))
+run_tests (void)
+{
+ __m128 y = _mm_set_ps (-3, 2, 1, 9);
+ foo (&y);
+}
+
+int
+main ()
+{
+ unsigned long cpu_facilities;
+
+ cpu_facilities = i386_cpuid ();
+
+ if ((cpu_facilities & (bit_MMX | bit_SSE | bit_CMOV))
+ != (bit_MMX | bit_SSE | bit_CMOV))
+ /* If host has no vector support, pass. */
+ return 0;
+
+ run_tests ();
+ return 0;
+}