diff mbox series

Add missing _mm512_set{_epi16,_epi8,zero} intrinsics

Message ID 20180508151457.GP8577@tucnak
State New
Headers show
Series Add missing _mm512_set{_epi16,_epi8,zero} intrinsics | expand

Commit Message

Jakub Jelinek May 8, 2018, 3:14 p.m. UTC 
Hi!

While working on PR85323 testsuite coverage, I've noticed we lack these
intrinsics.  ICC and since Mar 2017 also clang do have these.

The _mm512_setzero is just a misnamed alias to another intrinsic, but for
compatibility we likely want to have it too.

Surprisingly, the _mm512_setr_epi{8,16} intrinsics one would expect too
are missing in the ICC I have around.

Bootstrapped/regtested on x86_64-linux and i686-linux, ok for trunk?

2018-05-08  Jakub Jelinek  <jakub@redhat.com>

	* config/i386/avx512fintrin.h (_mm512_set_epi16, _mm512_set_epi8,
	_mm512_setzero): New intrinsics.

	* gcc.target/i386/avx512f-set-v32hi-1.c: New test.
	* gcc.target/i386/avx512f-set-v32hi-2.c: New test.
	* gcc.target/i386/avx512f-set-v32hi-3.c: New test.
	* gcc.target/i386/avx512f-set-v32hi-4.c: New test.
	* gcc.target/i386/avx512f-set-v32hi-5.c: New test.
	* gcc.target/i386/avx512f-set-v64qi-1.c: New test.
	* gcc.target/i386/avx512f-set-v64qi-2.c: New test.
	* gcc.target/i386/avx512f-set-v64qi-3.c: New test.
	* gcc.target/i386/avx512f-set-v64qi-4.c: New test.
	* gcc.target/i386/avx512f-set-v64qi-5.c: New test.
	* gcc.target/i386/avx512f-setzero-1.c: New test.


	Jakub

Comments

Kirill Yukhin May 17, 2018, 5:11 a.m. UTC | #1 
Hello Jakub,
On 08 мая 17:14, Jakub Jelinek wrote:
> Hi!
> 
> While working on PR85323 testsuite coverage, I've noticed we lack these
> intrinsics.  ICC and since Mar 2017 also clang do have these.
> 
> The _mm512_setzero is just a misnamed alias to another intrinsic, but for
> compatibility we likely want to have it too.
> 
> Surprisingly, the _mm512_setr_epi{8,16} intrinsics one would expect too
> are missing in the ICC I have around.
> 
> Bootstrapped/regtested on x86_64-linux and i686-linux, ok for trunk?
Your patch is OK for trunk.

--
Regards, Kirill Yukhin
diff mbox series

Patch

--- gcc/config/i386/avx512fintrin.h.jj	2018-05-03 20:58:56.210706689 +0200
+++ gcc/config/i386/avx512fintrin.h	2018-05-08 12:43:49.905259463 +0200
@@ -97,6 +97,56 @@  _mm512_set_epi32 (int __A, int __B, int
 	   __H, __G, __F, __E, __D, __C, __B, __A };
 }
 
+extern __inline __m512i
+__attribute__((__gnu_inline__, __always_inline__, __artificial__))
+_mm512_set_epi16 (short __q31, short __q30, short __q29, short __q28,
+		  short __q27, short __q26, short __q25, short __q24,
+		  short __q23, short __q22, short __q21, short __q20,
+		  short __q19, short __q18, short __q17, short __q16,
+		  short __q15, short __q14, short __q13, short __q12,
+		  short __q11, short __q10, short __q09, short __q08,
+		  short __q07, short __q06, short __q05, short __q04,
+		  short __q03, short __q02, short __q01, short __q00)
+{
+  return __extension__ (__m512i)(__v32hi){
+    __q00, __q01, __q02, __q03, __q04, __q05, __q06, __q07,
+    __q08, __q09, __q10, __q11, __q12, __q13, __q14, __q15,
+    __q16, __q17, __q18, __q19, __q20, __q21, __q22, __q23,
+    __q24, __q25, __q26, __q27, __q28, __q29, __q30, __q31
+  };
+}
+
+extern __inline __m512i
+__attribute__((__gnu_inline__, __always_inline__, __artificial__))
+_mm512_set_epi8 (char __q63, char __q62, char __q61, char __q60,
+		 char __q59, char __q58, char __q57, char __q56,
+		 char __q55, char __q54, char __q53, char __q52,
+		 char __q51, char __q50, char __q49, char __q48,
+		 char __q47, char __q46, char __q45, char __q44,
+		 char __q43, char __q42, char __q41, char __q40,
+		 char __q39, char __q38, char __q37, char __q36,
+		 char __q35, char __q34, char __q33, char __q32,
+		 char __q31, char __q30, char __q29, char __q28,
+		 char __q27, char __q26, char __q25, char __q24,
+		 char __q23, char __q22, char __q21, char __q20,
+		 char __q19, char __q18, char __q17, char __q16,
+		 char __q15, char __q14, char __q13, char __q12,
+		 char __q11, char __q10, char __q09, char __q08,
+		 char __q07, char __q06, char __q05, char __q04,
+		 char __q03, char __q02, char __q01, char __q00)
+{
+  return __extension__ (__m512i)(__v64qi){
+    __q00, __q01, __q02, __q03, __q04, __q05, __q06, __q07,
+    __q08, __q09, __q10, __q11, __q12, __q13, __q14, __q15,
+    __q16, __q17, __q18, __q19, __q20, __q21, __q22, __q23,
+    __q24, __q25, __q26, __q27, __q28, __q29, __q30, __q31,
+    __q32, __q33, __q34, __q35, __q36, __q37, __q38, __q39,
+    __q40, __q41, __q42, __q43, __q44, __q45, __q46, __q47,
+    __q48, __q49, __q50, __q51, __q52, __q53, __q54, __q55,
+    __q56, __q57, __q58, __q59, __q60, __q61, __q62, __q63
+  };
+}
+
 extern __inline __m512d
 __attribute__ ((__gnu_inline__, __always_inline__, __artificial__))
 _mm512_set_pd (double __A, double __B, double __C, double __D,
@@ -263,6 +313,13 @@  _mm512_setzero_ps (void)
 				 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0 };
 }
 
+extern __inline __m512
+__attribute__ ((__gnu_inline__, __always_inline__, __artificial__))
+_mm512_setzero (void)
+{
+  return _mm512_setzero_ps ();
+}
+
 extern __inline __m512d
 __attribute__ ((__gnu_inline__, __always_inline__, __artificial__))
 _mm512_setzero_pd (void)
--- gcc/testsuite/gcc.target/i386/avx512f-set-v32hi-1.c.jj	2018-05-08 13:00:19.622831795 +0200
+++ gcc/testsuite/gcc.target/i386/avx512f-set-v32hi-1.c	2018-05-08 13:00:03.536822520 +0200
@@ -0,0 +1,36 @@ 
+/* { dg-do run } */
+/* { dg-require-effective-target avx512f } */
+/* { dg-options "-O2 -mavx512f" } */
+
+#include "avx512f-check.h"
+
+static __m512i
+__attribute__((noinline))
+foo (short *v)
+{
+  return _mm512_set_epi16 (v[31], v[30], v[29], v[28],
+			   v[27], v[26], v[25], v[24],
+			   v[23], v[22], v[21], v[20],
+			   v[19], v[18], v[17], v[16],
+			   v[15], v[14], v[13], v[12],
+			   v[11], v[10], v[9], v[8],
+			   v[7], v[6], v[5], v[4],
+			   v[3], v[2], v[1], v[0]);
+}
+
+static void
+avx512f_test (void)
+{
+  short v[32] =
+    {
+      -3, 60, 48, 16384, -90, 37, -48, 78,
+      4, 33, 81, 4, -89, -32768, 8, 68,
+      -13, 30, 78, 149, -70, -37, 98, 38,
+      41, 73, 89, 14, 80, 117, 108, 8
+    };
+  union512i_w u;
+
+  u.x = foo (v);
+  if (check_union512i_w (u, v))
+    abort ();
+}
--- gcc/testsuite/gcc.target/i386/avx512f-set-v32hi-2.c.jj	2018-05-08 13:03:27.843940212 +0200
+++ gcc/testsuite/gcc.target/i386/avx512f-set-v32hi-2.c	2018-05-08 13:03:23.922937951 +0200
@@ -0,0 +1,46 @@ 
+/* { dg-do run } */
+/* { dg-require-effective-target avx512f } */
+/* { dg-options "-O2 -mavx512f" } */
+
+#include "avx512f-check.h"
+
+static __m512i
+__attribute__((noinline))
+foo (short x1, short x2, short x3, short x4,
+     short x5, short x6, short x7, short x8,
+     short x9, short x10, short x11, short x12,
+     short x13, short x14, short x15, short x16,
+     short x17, short x18, short x19, short x20,
+     short x21, short x22, short x23, short x24,
+     short x25, short x26, short x27, short x28,
+     short x29, short x30, short x31, short x32)
+{
+  return _mm512_set_epi16 (x1, x2, x3, x4, x5, x6, x7, x8,
+			   x9, x10, x11, x12, x13, x14, x15, x16,
+			   x17, x18, x19, x20, x21, x22, x23, x24,
+			   x25, x26, x27, x28, x29, x30, x31, x32);
+}
+
+static void
+avx512f_test (void)
+{
+  short v[32] =
+    {
+      -3, 60, 48, 16383, -90, 37, -48, 78,
+      4, 33, 81, 4, -89, -32768, 8, 68,
+      -13, 30, 78, 149, -70, -37, 98, 38,
+      41, 73, 89, 14, 80, 117, 108, 8
+    };
+  union512i_w u;
+
+  u.x = foo (v[31], v[30], v[29], v[28],
+	     v[27], v[26], v[25], v[24],
+	     v[23], v[22], v[21], v[20],
+	     v[19], v[18], v[17], v[16],
+	     v[15], v[14], v[13], v[12],
+	     v[11], v[10], v[9], v[8],
+	     v[7], v[6], v[5], v[4],
+	     v[3], v[2], v[1], v[0]);
+  if (check_union512i_w (u, v))
+    abort ();
+}
--- gcc/testsuite/gcc.target/i386/avx512f-set-v32hi-3.c.jj	2018-05-08 13:09:34.796148145 +0200
+++ gcc/testsuite/gcc.target/i386/avx512f-set-v32hi-3.c	2018-05-08 13:10:36.692182782 +0200
@@ -0,0 +1,30 @@ 
+/* { dg-do run } */
+/* { dg-require-effective-target avx512f } */
+/* { dg-options "-O2 -mavx512f" } */
+
+#include "avx512f-check.h"
+
+static __m512i
+__attribute__((noinline))
+foo (short x)
+{
+  return _mm512_set_epi16 (x, x, x, x, x, x, x, x,
+			   x, x, x, x, x, x, x, x,
+			   x, x, x, x, x, x, x, x,
+			   x, x, x, x, x, x, x, x);
+}
+
+static void
+avx512f_test (void)
+{
+  short e = -45;
+  short v[32];
+  union512i_w u;
+  int i;
+
+  for (i = 0; i < ARRAY_SIZE (v); i++)
+    v[i] = e;
+  u.x = foo (e);
+  if (check_union512i_w (u, v))
+    abort ();
+}
--- gcc/testsuite/gcc.target/i386/avx512f-set-v32hi-4.c.jj	2018-05-08 13:10:47.596189053 +0200
+++ gcc/testsuite/gcc.target/i386/avx512f-set-v32hi-4.c	2018-05-08 13:12:47.921258260 +0200
@@ -0,0 +1,131 @@ 
+/* { dg-do run } */
+/* { dg-require-effective-target avx512f } */
+/* { dg-options "-O2 -mavx512f" } */
+
+#include "avx512f-check.h"
+
+static __m512i
+__attribute__((noinline))
+foo (short x, int i)
+{
+  switch (i)
+    {
+    case 31:
+      return _mm512_set_epi16 (x, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			       0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 30:
+      return _mm512_set_epi16 (0, x, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			       0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 29:
+      return _mm512_set_epi16 (0, 0, x, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			       0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 28:
+      return _mm512_set_epi16 (0, 0, 0, x, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			       0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 27:
+      return _mm512_set_epi16 (0, 0, 0, 0, x, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			       0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 26:
+      return _mm512_set_epi16 (0, 0, 0, 0, 0, x, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			       0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 25:
+      return _mm512_set_epi16 (0, 0, 0, 0, 0, 0, x, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			       0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 24:
+      return _mm512_set_epi16 (0, 0, 0, 0, 0, 0, 0, x, 0, 0, 0, 0, 0, 0, 0, 0,
+			       0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 23:
+      return _mm512_set_epi16 (0, 0, 0, 0, 0, 0, 0, 0, x, 0, 0, 0, 0, 0, 0, 0,
+			       0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 22:
+      return _mm512_set_epi16 (0, 0, 0, 0, 0, 0, 0, 0, 0, x, 0, 0, 0, 0, 0, 0,
+			       0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 21:
+      return _mm512_set_epi16 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, x, 0, 0, 0, 0, 0,
+			       0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 20:
+      return _mm512_set_epi16 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, x, 0, 0, 0, 0,
+			       0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 19:
+      return _mm512_set_epi16 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, x, 0, 0, 0,
+			       0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 18:
+      return _mm512_set_epi16 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, x, 0, 0,
+			       0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 17:
+      return _mm512_set_epi16 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, x, 0,
+			       0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 16:
+      return _mm512_set_epi16 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, x,
+			       0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 15:
+      return _mm512_set_epi16 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			       x, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 14:
+      return _mm512_set_epi16 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			       0, x, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 13:
+      return _mm512_set_epi16 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			       0, 0, x, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 12:
+      return _mm512_set_epi16 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			       0, 0, 0, x, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 11:
+      return _mm512_set_epi16 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			       0, 0, 0, 0, x, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 10:
+      return _mm512_set_epi16 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			       0, 0, 0, 0, 0, x, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 9:
+      return _mm512_set_epi16 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			       0, 0, 0, 0, 0, 0, x, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 8:
+      return _mm512_set_epi16 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			       0, 0, 0, 0, 0, 0, 0, x, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 7:
+      return _mm512_set_epi16 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			       0, 0, 0, 0, 0, 0, 0, 0, x, 0, 0, 0, 0, 0, 0, 0);
+    case 6:
+      return _mm512_set_epi16 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			       0, 0, 0, 0, 0, 0, 0, 0, 0, x, 0, 0, 0, 0, 0, 0);
+    case 5:
+      return _mm512_set_epi16 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			       0, 0, 0, 0, 0, 0, 0, 0, 0, 0, x, 0, 0, 0, 0, 0);
+    case 4:
+      return _mm512_set_epi16 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			       0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, x, 0, 0, 0, 0);
+    case 3:
+      return _mm512_set_epi16 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			       0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, x, 0, 0, 0);
+    case 2:
+      return _mm512_set_epi16 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			       0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, x, 0, 0);
+    case 1:
+      return _mm512_set_epi16 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			       0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, x, 0);
+    case 0:
+      return _mm512_set_epi16 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			       0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, x);
+    default:
+      abort ();
+    }
+}
+
+static void
+avx512f_test (void)
+{
+  short e = 0xa1bf;
+  short v[32];
+  union512i_w u;
+  int i, j;
+
+  for (i = 0; i < ARRAY_SIZE (v); i++)
+    {
+      for (j = 0; j < ARRAY_SIZE (v); j++)
+	v[j] = 0;
+      v[i] = e;
+      u.x = foo (e, i);
+      if (check_union512i_w (u, v))
+	abort ();
+    }
+}
--- gcc/testsuite/gcc.target/i386/avx512f-set-v32hi-5.c.jj	2018-05-08 13:12:54.338261939 +0200
+++ gcc/testsuite/gcc.target/i386/avx512f-set-v32hi-5.c	2018-05-08 13:14:25.398314310 +0200
@@ -0,0 +1,131 @@ 
+/* { dg-do run } */
+/* { dg-require-effective-target avx512f } */
+/* { dg-options "-O2 -mavx512f" } */
+
+#include "avx512f-check.h"
+
+static __m512i
+__attribute__((noinline))
+foo (short x, int i)
+{
+  switch (i)
+    {
+    case 31:
+      return _mm512_set_epi16 (x, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			       1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 30:
+      return _mm512_set_epi16 (1, x, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			       1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 29:
+      return _mm512_set_epi16 (1, 1, x, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			       1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 28:
+      return _mm512_set_epi16 (1, 1, 1, x, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			       1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 27:
+      return _mm512_set_epi16 (1, 1, 1, 1, x, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			       1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 26:
+      return _mm512_set_epi16 (1, 1, 1, 1, 1, x, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			       1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 25:
+      return _mm512_set_epi16 (1, 1, 1, 1, 1, 1, x, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			       1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 24:
+      return _mm512_set_epi16 (1, 1, 1, 1, 1, 1, 1, x, 1, 1, 1, 1, 1, 1, 1, 1,
+			       1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 23:
+      return _mm512_set_epi16 (1, 1, 1, 1, 1, 1, 1, 1, x, 1, 1, 1, 1, 1, 1, 1,
+			       1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 22:
+      return _mm512_set_epi16 (1, 1, 1, 1, 1, 1, 1, 1, 1, x, 1, 1, 1, 1, 1, 1,
+			       1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 21:
+      return _mm512_set_epi16 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, x, 1, 1, 1, 1, 1,
+			       1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 20:
+      return _mm512_set_epi16 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, x, 1, 1, 1, 1,
+			       1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 19:
+      return _mm512_set_epi16 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, x, 1, 1, 1,
+			       1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 18:
+      return _mm512_set_epi16 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, x, 1, 1,
+			       1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 17:
+      return _mm512_set_epi16 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, x, 1,
+			       1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 16:
+      return _mm512_set_epi16 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, x,
+			       1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 15:
+      return _mm512_set_epi16 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			       x, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 14:
+      return _mm512_set_epi16 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			       1, x, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 13:
+      return _mm512_set_epi16 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			       1, 1, x, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 12:
+      return _mm512_set_epi16 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			       1, 1, 1, x, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 11:
+      return _mm512_set_epi16 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			       1, 1, 1, 1, x, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 10:
+      return _mm512_set_epi16 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			       1, 1, 1, 1, 1, x, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 9:
+      return _mm512_set_epi16 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			       1, 1, 1, 1, 1, 1, x, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 8:
+      return _mm512_set_epi16 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			       1, 1, 1, 1, 1, 1, 1, x, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 7:
+      return _mm512_set_epi16 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			       1, 1, 1, 1, 1, 1, 1, 1, x, 1, 1, 1, 1, 1, 1, 1);
+    case 6:
+      return _mm512_set_epi16 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			       1, 1, 1, 1, 1, 1, 1, 1, 1, x, 1, 1, 1, 1, 1, 1);
+    case 5:
+      return _mm512_set_epi16 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			       1, 1, 1, 1, 1, 1, 1, 1, 1, 1, x, 1, 1, 1, 1, 1);
+    case 4:
+      return _mm512_set_epi16 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			       1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, x, 1, 1, 1, 1);
+    case 3:
+      return _mm512_set_epi16 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			       1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, x, 1, 1, 1);
+    case 2:
+      return _mm512_set_epi16 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			       1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, x, 1, 1);
+    case 1:
+      return _mm512_set_epi16 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			       1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, x, 1);
+    case 0:
+      return _mm512_set_epi16 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			       1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, x);
+    default:
+      abort ();
+    }
+}
+
+static void
+avx512f_test (void)
+{
+  short e = 0xa1bf;
+  short v[32];
+  union512i_w u;
+  int i, j;
+
+  for (i = 0; i < ARRAY_SIZE (v); i++)
+    {
+      for (j = 0; j < ARRAY_SIZE (v); j++)
+	v[j] = 1;
+      v[i] = e;
+      u.x = foo (e, i);
+      if (check_union512i_w (u, v))
+	abort ();
+    }
+}
--- gcc/testsuite/gcc.target/i386/avx512f-set-v64qi-1.c.jj	2018-05-08 13:18:42.279461987 +0200
+++ gcc/testsuite/gcc.target/i386/avx512f-set-v64qi-1.c	2018-05-08 13:45:33.219470444 +0200
@@ -0,0 +1,48 @@ 
+/* { dg-do run } */
+/* { dg-require-effective-target avx512f } */
+/* { dg-options "-O2 -mavx512f" } */
+
+#include "avx512f-check.h"
+
+static __m512i
+__attribute__((noinline))
+foo (char *v)
+{
+  return _mm512_set_epi8 (v[63], v[62], v[61], v[60],
+			  v[59], v[58], v[57], v[56],
+			  v[55], v[54], v[53], v[52],
+			  v[51], v[50], v[49], v[48],
+			  v[47], v[46], v[45], v[44],
+			  v[43], v[42], v[41], v[40],
+			  v[39], v[38], v[37], v[36],
+			  v[35], v[34], v[33], v[32],
+			  v[31], v[30], v[29], v[28],
+			  v[27], v[26], v[25], v[24],
+			  v[23], v[22], v[21], v[20],
+			  v[19], v[18], v[17], v[16],
+			  v[15], v[14], v[13], v[12],
+			  v[11], v[10], v[9], v[8],
+			  v[7], v[6], v[5], v[4],
+			  v[3], v[2], v[1], v[0]);
+}
+
+static void
+avx512f_test (void)
+{
+  char v[64] =
+    {
+      -3, 60, 48, 108, -90, 37, -48, 78,
+      4, 33, 81, 4, -89, -112, 8, 68,
+      -13, 30, 78, 149, -70, -37, 98, 38,
+      41, 73, 89, 14, 80, 117, 108, 8,
+      60, 48, 108, -90, 37, -48, 78, 4,
+      33, 81, 4, -89, -112, 8, 68, -13,
+      30, 78, 149, -70, -37, 98, 38, 41,
+      73, 89, 14, 80, 117, 108, -3
+    };
+  union512i_b u;
+
+  u.x = foo (v);
+  if (check_union512i_b (u, v))
+    abort ();
+}
--- gcc/testsuite/gcc.target/i386/avx512f-set-v64qi-2.c.jj	2018-05-08 13:18:45.284463717 +0200
+++ gcc/testsuite/gcc.target/i386/avx512f-set-v64qi-2.c	2018-05-08 13:18:06.433441379 +0200
@@ -0,0 +1,70 @@ 
+/* { dg-do run } */
+/* { dg-require-effective-target avx512f } */
+/* { dg-options "-O2 -mavx512f" } */
+
+#include "avx512f-check.h"
+
+static __m512i
+__attribute__((noinline))
+foo (char x1, char x2, char x3, char x4,
+     char x5, char x6, char x7, char x8,
+     char x9, char x10, char x11, char x12,
+     char x13, char x14, char x15, char x16,
+     char x17, char x18, char x19, char x20,
+     char x21, char x22, char x23, char x24,
+     char x25, char x26, char x27, char x28,
+     char x29, char x30, char x31, char x32,
+     char x33, char x34, char x35, char x36,
+     char x37, char x38, char x39, char x40,
+     char x41, char x42, char x43, char x44,
+     char x45, char x46, char x47, char x48,
+     char x49, char x50, char x51, char x52,
+     char x53, char x54, char x55, char x56,
+     char x57, char x58, char x59, char x60,
+     char x61, char x62, char x63, char x64)
+{
+  return _mm512_set_epi8 (x1, x2, x3, x4, x5, x6, x7, x8,
+			  x9, x10, x11, x12, x13, x14, x15, x16,
+			  x17, x18, x19, x20, x21, x22, x23, x24,
+			  x25, x26, x27, x28, x29, x30, x31, x32,
+			  x33, x34, x35, x36, x37, x38, x39, x40,
+			  x41, x42, x43, x44, x45, x46, x47, x48,
+			  x49, x50, x51, x52, x53, x54, x55, x56,
+			  x57, x58, x59, x60, x61, x62, x63, x64);
+}
+
+static void
+avx512f_test (void)
+{
+  char v[64] =
+    {
+      -3, 60, 48, 104, -90, 37, -48, 78,
+      4, 33, 81, 4, -89, 17, 8, 68,
+      -13, 30, 78, 149, -70, -37, 98, 38,
+      41, 73, 89, 14, 80, 117, 108, 8,
+      12, 39, -8, -90, 17, 15, -26, 12,
+      68, 8, 17, -88, 3, 80, 32, 3,
+      38, 98, -37, -70, 149, 78, 30, -13,
+      72, 88, 13, 79, 116, 107, 7, 42
+    };
+  union512i_b u;
+
+  u.x = foo (v[63], v[62], v[61], v[60],
+	     v[59], v[58], v[57], v[56],
+	     v[55], v[54], v[53], v[52],
+	     v[51], v[50], v[49], v[48],
+	     v[47], v[46], v[45], v[44],
+	     v[43], v[42], v[41], v[40],
+	     v[39], v[38], v[37], v[36],
+	     v[35], v[34], v[33], v[32],
+	     v[31], v[30], v[29], v[28],
+	     v[27], v[26], v[25], v[24],
+	     v[23], v[22], v[21], v[20],
+	     v[19], v[18], v[17], v[16],
+	     v[15], v[14], v[13], v[12],
+	     v[11], v[10], v[9], v[8],
+	     v[7], v[6], v[5], v[4],
+	     v[3], v[2], v[1], v[0]);
+  if (check_union512i_b (u, v))
+    abort ();
+}
--- gcc/testsuite/gcc.target/i386/avx512f-set-v64qi-3.c.jj	2018-05-08 13:18:48.192465387 +0200
+++ gcc/testsuite/gcc.target/i386/avx512f-set-v64qi-3.c	2018-05-08 13:21:41.743565154 +0200
@@ -0,0 +1,34 @@ 
+/* { dg-do run } */
+/* { dg-require-effective-target avx512f } */
+/* { dg-options "-O2 -mavx512f" } */
+
+#include "avx512f-check.h"
+
+static __m512i
+__attribute__((noinline))
+foo (char x)
+{
+  return _mm512_set_epi8 (x, x, x, x, x, x, x, x,
+			  x, x, x, x, x, x, x, x,
+			  x, x, x, x, x, x, x, x,
+			  x, x, x, x, x, x, x, x,
+			  x, x, x, x, x, x, x, x,
+			  x, x, x, x, x, x, x, x,
+			  x, x, x, x, x, x, x, x,
+			  x, x, x, x, x, x, x, x);
+}
+
+static void
+avx512f_test (void)
+{
+  char e = -45;
+  char v[64];
+  union512i_b u;
+  int i;
+
+  for (i = 0; i < ARRAY_SIZE (v); i++)
+    v[i] = e;
+  u.x = foo (e);
+  if (check_union512i_b (u, v))
+    abort ();
+}
--- gcc/testsuite/gcc.target/i386/avx512f-set-v64qi-4.c.jj	2018-05-08 13:18:51.017467010 +0200
+++ gcc/testsuite/gcc.target/i386/avx512f-set-v64qi-4.c	2018-05-08 13:32:37.120937731 +0200
@@ -0,0 +1,355 @@ 
+/* { dg-do run } */
+/* { dg-require-effective-target avx512f } */
+/* { dg-options "-O2 -mavx512f" } */
+
+#include "avx512f-check.h"
+
+static __m512i
+__attribute__((noinline))
+foo (char x, int i)
+{
+  switch (i)
+    {
+    case 63:
+      return _mm512_set_epi8 (x, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 62:
+      return _mm512_set_epi8 (0, x, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 61:
+      return _mm512_set_epi8 (0, 0, x, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 60:
+      return _mm512_set_epi8 (0, 0, 0, x, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 59:
+      return _mm512_set_epi8 (0, 0, 0, 0, x, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 58:
+      return _mm512_set_epi8 (0, 0, 0, 0, 0, x, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 57:
+      return _mm512_set_epi8 (0, 0, 0, 0, 0, 0, x, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 56:
+      return _mm512_set_epi8 (0, 0, 0, 0, 0, 0, 0, x, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 55:
+      return _mm512_set_epi8 (0, 0, 0, 0, 0, 0, 0, 0, x, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 54:
+      return _mm512_set_epi8 (0, 0, 0, 0, 0, 0, 0, 0, 0, x, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 53:
+      return _mm512_set_epi8 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, x, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 52:
+      return _mm512_set_epi8 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, x, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 51:
+      return _mm512_set_epi8 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, x, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 50:
+      return _mm512_set_epi8 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, x, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 49:
+      return _mm512_set_epi8 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, x, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 48:
+      return _mm512_set_epi8 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, x,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 47:
+      return _mm512_set_epi8 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      x, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 46:
+      return _mm512_set_epi8 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, x, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 45:
+      return _mm512_set_epi8 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, x, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 44:
+      return _mm512_set_epi8 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, x, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 43:
+      return _mm512_set_epi8 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, x, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 42:
+      return _mm512_set_epi8 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, x, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 41:
+      return _mm512_set_epi8 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, x, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 40:
+      return _mm512_set_epi8 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, x, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 39:
+      return _mm512_set_epi8 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, x, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 38:
+      return _mm512_set_epi8 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, x, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 37:
+      return _mm512_set_epi8 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, x, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 36:
+      return _mm512_set_epi8 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, x, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 35:
+      return _mm512_set_epi8 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, x, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 34:
+      return _mm512_set_epi8 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, x, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 33:
+      return _mm512_set_epi8 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, x, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 32:
+      return _mm512_set_epi8 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, x,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 31:
+      return _mm512_set_epi8 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      x, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 30:
+      return _mm512_set_epi8 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, x, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 29:
+      return _mm512_set_epi8 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, x, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 28:
+      return _mm512_set_epi8 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, x, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 27:
+      return _mm512_set_epi8 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, x, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 26:
+      return _mm512_set_epi8 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, x, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 25:
+      return _mm512_set_epi8 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, x, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 24:
+      return _mm512_set_epi8 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, x, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 23:
+      return _mm512_set_epi8 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, x, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 22:
+      return _mm512_set_epi8 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, x, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 21:
+      return _mm512_set_epi8 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, x, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 20:
+      return _mm512_set_epi8 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, x, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 19:
+      return _mm512_set_epi8 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, x, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 18:
+      return _mm512_set_epi8 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, x, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 17:
+      return _mm512_set_epi8 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, x, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 16:
+      return _mm512_set_epi8 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, x,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 15:
+      return _mm512_set_epi8 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      x, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 14:
+      return _mm512_set_epi8 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, x, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 13:
+      return _mm512_set_epi8 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, x, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 12:
+      return _mm512_set_epi8 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, x, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 11:
+      return _mm512_set_epi8 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, x, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 10:
+      return _mm512_set_epi8 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, x, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 9:
+      return _mm512_set_epi8 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, x, 0, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 8:
+      return _mm512_set_epi8 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, x, 0, 0, 0, 0, 0, 0, 0, 0);
+    case 7:
+      return _mm512_set_epi8 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, x, 0, 0, 0, 0, 0, 0, 0);
+    case 6:
+      return _mm512_set_epi8 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, x, 0, 0, 0, 0, 0, 0);
+    case 5:
+      return _mm512_set_epi8 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, x, 0, 0, 0, 0, 0);
+    case 4:
+      return _mm512_set_epi8 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, x, 0, 0, 0, 0);
+    case 3:
+      return _mm512_set_epi8 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, x, 0, 0, 0);
+    case 2:
+      return _mm512_set_epi8 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, x, 0, 0);
+    case 1:
+      return _mm512_set_epi8 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, x, 0);
+    case 0:
+      return _mm512_set_epi8 (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+			      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, x);
+    default:
+      abort ();
+    }
+}
+
+static void
+avx512f_test (void)
+{
+  char e = 0xa1;
+  char v[64];
+  union512i_b u;
+  int i, j;
+
+  for (i = 0; i < ARRAY_SIZE (v); i++)
+    {
+      for (j = 0; j < ARRAY_SIZE (v); j++)
+	v[j] = 0;
+      v[i] = e;
+      u.x = foo (e, i);
+      if (check_union512i_b (u, v))
+	abort ();
+    }
+}
--- gcc/testsuite/gcc.target/i386/avx512f-set-v64qi-5.c.jj	2018-05-08 13:18:54.740469150 +0200
+++ gcc/testsuite/gcc.target/i386/avx512f-set-v64qi-5.c	2018-05-08 13:33:57.322985614 +0200
@@ -0,0 +1,355 @@ 
+/* { dg-do run } */
+/* { dg-require-effective-target avx512f } */
+/* { dg-options "-O2 -mavx512f" } */
+
+#include "avx512f-check.h"
+
+static __m512i
+__attribute__((noinline))
+foo (char x, int i)
+{
+  switch (i)
+    {
+    case 63:
+      return _mm512_set_epi8 (x, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 62:
+      return _mm512_set_epi8 (1, x, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 61:
+      return _mm512_set_epi8 (1, 1, x, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 60:
+      return _mm512_set_epi8 (1, 1, 1, x, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 59:
+      return _mm512_set_epi8 (1, 1, 1, 1, x, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 58:
+      return _mm512_set_epi8 (1, 1, 1, 1, 1, x, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 57:
+      return _mm512_set_epi8 (1, 1, 1, 1, 1, 1, x, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 56:
+      return _mm512_set_epi8 (1, 1, 1, 1, 1, 1, 1, x, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 55:
+      return _mm512_set_epi8 (1, 1, 1, 1, 1, 1, 1, 1, x, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 54:
+      return _mm512_set_epi8 (1, 1, 1, 1, 1, 1, 1, 1, 1, x, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 53:
+      return _mm512_set_epi8 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, x, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 52:
+      return _mm512_set_epi8 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, x, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 51:
+      return _mm512_set_epi8 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, x, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 50:
+      return _mm512_set_epi8 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, x, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 49:
+      return _mm512_set_epi8 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, x, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 48:
+      return _mm512_set_epi8 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, x,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 47:
+      return _mm512_set_epi8 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      x, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 46:
+      return _mm512_set_epi8 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, x, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 45:
+      return _mm512_set_epi8 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, x, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 44:
+      return _mm512_set_epi8 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, x, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 43:
+      return _mm512_set_epi8 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, x, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 42:
+      return _mm512_set_epi8 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, x, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 41:
+      return _mm512_set_epi8 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, x, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 40:
+      return _mm512_set_epi8 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, x, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 39:
+      return _mm512_set_epi8 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, x, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 38:
+      return _mm512_set_epi8 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, x, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 37:
+      return _mm512_set_epi8 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, x, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 36:
+      return _mm512_set_epi8 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, x, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 35:
+      return _mm512_set_epi8 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, x, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 34:
+      return _mm512_set_epi8 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, x, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 33:
+      return _mm512_set_epi8 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, x, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 32:
+      return _mm512_set_epi8 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, x,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 31:
+      return _mm512_set_epi8 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      x, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 30:
+      return _mm512_set_epi8 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, x, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 29:
+      return _mm512_set_epi8 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, x, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 28:
+      return _mm512_set_epi8 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, x, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 27:
+      return _mm512_set_epi8 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, x, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 26:
+      return _mm512_set_epi8 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, x, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 25:
+      return _mm512_set_epi8 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, x, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 24:
+      return _mm512_set_epi8 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, x, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 23:
+      return _mm512_set_epi8 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, x, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 22:
+      return _mm512_set_epi8 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, x, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 21:
+      return _mm512_set_epi8 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, x, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 20:
+      return _mm512_set_epi8 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, x, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 19:
+      return _mm512_set_epi8 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, x, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 18:
+      return _mm512_set_epi8 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, x, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 17:
+      return _mm512_set_epi8 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, x, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 16:
+      return _mm512_set_epi8 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, x,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 15:
+      return _mm512_set_epi8 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      x, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 14:
+      return _mm512_set_epi8 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, x, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 13:
+      return _mm512_set_epi8 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, x, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 12:
+      return _mm512_set_epi8 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, x, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 11:
+      return _mm512_set_epi8 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, x, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 10:
+      return _mm512_set_epi8 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, x, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 9:
+      return _mm512_set_epi8 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, x, 1, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 8:
+      return _mm512_set_epi8 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, x, 1, 1, 1, 1, 1, 1, 1, 1);
+    case 7:
+      return _mm512_set_epi8 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, x, 1, 1, 1, 1, 1, 1, 1);
+    case 6:
+      return _mm512_set_epi8 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, x, 1, 1, 1, 1, 1, 1);
+    case 5:
+      return _mm512_set_epi8 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, x, 1, 1, 1, 1, 1);
+    case 4:
+      return _mm512_set_epi8 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, x, 1, 1, 1, 1);
+    case 3:
+      return _mm512_set_epi8 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, x, 1, 1, 1);
+    case 2:
+      return _mm512_set_epi8 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, x, 1, 1);
+    case 1:
+      return _mm512_set_epi8 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, x, 1);
+    case 0:
+      return _mm512_set_epi8 (1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+			      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, x);
+    default:
+      abort ();
+    }
+}
+
+static void
+avx512f_test (void)
+{
+  char e = 0xa1;
+  char v[64];
+  union512i_b u;
+  int i, j;
+
+  for (i = 0; i < ARRAY_SIZE (v); i++)
+    {
+      for (j = 0; j < ARRAY_SIZE (v); j++)
+	v[j] = 1;
+      v[i] = e;
+      u.x = foo (e, i);
+      if (check_union512i_b (u, v))
+	abort ();
+    }
+}
--- gcc/testsuite/gcc.target/i386/avx512f-setzero-1.c.jj	2018-05-08 13:49:46.800644893 +0200
+++ gcc/testsuite/gcc.target/i386/avx512f-setzero-1.c	2018-05-08 13:49:55.188650707 +0200
@@ -0,0 +1,21 @@ 
+/* { dg-do run } */
+/* { dg-options "-O2 -mavx512f" } */
+/* { dg-require-effective-target avx512f } */
+
+#include "avx512f-check.h"
+
+void static
+avx512f_test (void)
+{
+  int i;
+  union512 res;
+  float res_ref[16];
+
+  res.x = _mm512_setzero ();
+
+  for (i = 0; i < 16; i++)
+    res_ref[i] = 0.0;
+
+  if (check_union512 (res, res_ref))
+    abort ();
+}