diff --git a/gas/config/tc-i386.c b/gas/config/tc-i386.c
index c26b654eb72..b8e3c24c25d 100644
--- a/gas/config/tc-i386.c
+++ b/gas/config/tc-i386.c
@@ -6287,6 +6287,11 @@ check_VecOperands (const insn_template *t)
 	  return 1;
 	}
     }
+  else if (t->opcode_modifier.sae)
+    {
+	i.error = unsupported_syntax;
+	return 1;
+    }
 
   /* Check the special Imm4 cases; must be the first operand.  */
   if (t->cpu_flags.bitfield.cpuxop && t->operands == 5)
diff --git a/gas/testsuite/gas/i386/inval-avx512f.l b/gas/testsuite/gas/i386/inval-avx512f.l
index c47ac7db90c..d45ae250ba0 100644
--- a/gas/testsuite/gas/i386/inval-avx512f.l
+++ b/gas/testsuite/gas/i386/inval-avx512f.l
@@ -218,6 +218,8 @@
 .*:313: Error: .*unsupported broadcast for `vcvtneps2bf16'
 .*:316: Error: .*unsupported broadcast for `vcvtneps2bf16'
 .*:319: Error: .*unsupported broadcast for `vcvtneps2bf16'
+.*:321: Error: .*vaddps.*
+.*:322: Error: .*vcmpss.*
 GAS LISTING .*
 
 
@@ -569,6 +571,7 @@ GAS LISTING .*
 [ 	]*318 \?\?\?\? 62F27E38[ 	]+vcvtneps2bf16 \(%eax\)\{1to8\}, %xmm1
 [ 	]*318[ 	]+7208
 [ 	]*319[ 	]+vcvtneps2bf16 \(%eax\)\{1to16\}, %xmm1
-[ 	]*320[ 	]+\?\?\?\? 8DB42600 		\.p2align 4
-[ 	]*320[ 	]+0000008D 
-[ 	]*320[ 	]+7600
+[ 	]*320[ 	]*
+[ 	]*321[ 	]+vaddps \$0xcc, %zmm0, %zmm0, %zmm0
+[ 	]*322[ 	]+vcmpss \$0, \$0xcc, %xmm0, %xmm0, %k0
+#pass
diff --git a/gas/testsuite/gas/i386/inval-avx512f.s b/gas/testsuite/gas/i386/inval-avx512f.s
index 7cca7ef854c..841992bbd79 100644
--- a/gas/testsuite/gas/i386/inval-avx512f.s
+++ b/gas/testsuite/gas/i386/inval-avx512f.s
@@ -317,4 +317,8 @@ _start:
 	vcvtneps2bf16 (%eax){1to4}, %xmm1
 	vcvtneps2bf16 (%eax){1to8}, %xmm1
 	vcvtneps2bf16 (%eax){1to16}, %xmm1
+
+	vaddps $0xcc, %zmm0, %zmm0, %zmm0
+	vcmpss $0, $0xcc, %xmm0, %xmm0, %k0
+
 	.p2align 4