1 files changed, 19 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.target/i386/avx512f-knotw-1.c b/gcc/testsuite/gcc.target/i386/avx512f-knotw-1.c
new file mode 100644
index 00000000000..a8f8f10b6be
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/avx512f-knotw-1.c
@@ -0,0 +1,19 @@
+/* { dg-do compile } */
+/* { dg-options "-mavx512f -O2" } */
+/* { dg-final { scan-assembler-times "knotw\[ \\t\]+\[^\n\]*%k\[1-7\]" 1 } } */
+
+#include <immintrin.h>
+
+void
+avx512f_test ()
+{
+  __mmask16 k1, k2;
+  volatile __m512 x;
+
+  __asm__( "kmovw %1, %0" : "=k" (k1) : "r" (45) );
+
+  k2 = _mm512_knot (k1);
+
+  x = _mm512_mask_add_ps (x, k1, x, x);
+  x = _mm512_mask_add_ps (x, k2, x, x);
+}