diff --git a/llvm/test/MC/X86/intel-syntax-x86-64-avx_vnni.s b/llvm/test/MC/X86/intel-syntax-x86-64-avx_vnni.s
@@ -0,0 +1,226 @@
+// RUN: llvm-mc -triple x86_64-unknown-unknown -mattr=+avxvnni -x86-asm-syntax=intel -output-asm-variant=1 --show-encoding %s | FileCheck %s
+
+// CHECK: {vex} vpdpbusd ymm6, ymm5, ymm4
+// CHECK: encoding: [0xc4,0xe2,0x55,0x50,0xf4]
+          {vex} vpdpbusd ymm6, ymm5, ymm4
+
+// CHECK: {vex} vpdpbusd xmm6, xmm5, xmm4
+// CHECK: encoding: [0xc4,0xe2,0x51,0x50,0xf4]
+          {vex} vpdpbusd xmm6, xmm5, xmm4
+
+// CHECK: {vex} vpdpbusd ymm6, ymm5, ymmword ptr [rbp + 8*r14 + 268435456]
+// CHECK: encoding: [0xc4,0xa2,0x55,0x50,0xb4,0xf5,0x00,0x00,0x00,0x10]
+          {vex} vpdpbusd ymm6, ymm5, ymmword ptr [rbp + 8*r14 + 268435456]
+
+// CHECK: {vex} vpdpbusd ymm6, ymm5, ymmword ptr [r8 + 4*rax + 291]
+// CHECK: encoding: [0xc4,0xc2,0x55,0x50,0xb4,0x80,0x23,0x01,0x00,0x00]
+          {vex} vpdpbusd ymm6, ymm5, ymmword ptr [r8 + 4*rax + 291]
+
+// CHECK: {vex} vpdpbusd ymm6, ymm5, ymmword ptr [rip]
+// CHECK: encoding: [0xc4,0xe2,0x55,0x50,0x35,0x00,0x00,0x00,0x00]
+          {vex} vpdpbusd ymm6, ymm5, ymmword ptr [rip]
+
+// CHECK: {vex} vpdpbusd ymm6, ymm5, ymmword ptr [2*rbp - 1024]
+// CHECK: encoding: [0xc4,0xe2,0x55,0x50,0x34,0x6d,0x00,0xfc,0xff,0xff]
+          {vex} vpdpbusd ymm6, ymm5, ymmword ptr [2*rbp - 1024]
+
+// CHECK: {vex} vpdpbusd ymm6, ymm5, ymmword ptr [rcx + 4064]
+// CHECK: encoding: [0xc4,0xe2,0x55,0x50,0xb1,0xe0,0x0f,0x00,0x00]
+          {vex} vpdpbusd ymm6, ymm5, ymmword ptr [rcx + 4064]
+
+// CHECK: {vex} vpdpbusd ymm6, ymm5, ymmword ptr [rdx - 4096]
+// CHECK: encoding: [0xc4,0xe2,0x55,0x50,0xb2,0x00,0xf0,0xff,0xff]
+          {vex} vpdpbusd ymm6, ymm5, ymmword ptr [rdx - 4096]
+
+// CHECK: {vex} vpdpbusd xmm6, xmm5, xmmword ptr [rbp + 8*r14 + 268435456]
+// CHECK: encoding: [0xc4,0xa2,0x51,0x50,0xb4,0xf5,0x00,0x00,0x00,0x10]
+          {vex} vpdpbusd xmm6, xmm5, xmmword ptr [rbp + 8*r14 + 268435456]
+
+// CHECK: {vex} vpdpbusd xmm6, xmm5, xmmword ptr [r8 + 4*rax + 291]
+// CHECK: encoding: [0xc4,0xc2,0x51,0x50,0xb4,0x80,0x23,0x01,0x00,0x00]
+          {vex} vpdpbusd xmm6, xmm5, xmmword ptr [r8 + 4*rax + 291]
+
+// CHECK: {vex} vpdpbusd xmm6, xmm5, xmmword ptr [rip]
+// CHECK: encoding: [0xc4,0xe2,0x51,0x50,0x35,0x00,0x00,0x00,0x00]
+          {vex} vpdpbusd xmm6, xmm5, xmmword ptr [rip]
+
+// CHECK: {vex} vpdpbusd xmm6, xmm5, xmmword ptr [2*rbp - 512]
+// CHECK: encoding: [0xc4,0xe2,0x51,0x50,0x34,0x6d,0x00,0xfe,0xff,0xff]
+          {vex} vpdpbusd xmm6, xmm5, xmmword ptr [2*rbp - 512]
+
+// CHECK: {vex} vpdpbusd xmm6, xmm5, xmmword ptr [rcx + 2032]
+// CHECK: encoding: [0xc4,0xe2,0x51,0x50,0xb1,0xf0,0x07,0x00,0x00]
+          {vex} vpdpbusd xmm6, xmm5, xmmword ptr [rcx + 2032]
+
+// CHECK: {vex} vpdpbusd xmm6, xmm5, xmmword ptr [rdx - 2048]
+// CHECK: encoding: [0xc4,0xe2,0x51,0x50,0xb2,0x00,0xf8,0xff,0xff]
+          {vex} vpdpbusd xmm6, xmm5, xmmword ptr [rdx - 2048]
+
+// CHECK: {vex} vpdpbusds ymm6, ymm5, ymm4
+// CHECK: encoding: [0xc4,0xe2,0x55,0x51,0xf4]
+          {vex} vpdpbusds ymm6, ymm5, ymm4
+
+// CHECK: {vex} vpdpbusds xmm6, xmm5, xmm4
+// CHECK: encoding: [0xc4,0xe2,0x51,0x51,0xf4]
+          {vex} vpdpbusds xmm6, xmm5, xmm4
+
+// CHECK: {vex} vpdpbusds ymm6, ymm5, ymmword ptr [rbp + 8*r14 + 268435456]
+// CHECK: encoding: [0xc4,0xa2,0x55,0x51,0xb4,0xf5,0x00,0x00,0x00,0x10]
+          {vex} vpdpbusds ymm6, ymm5, ymmword ptr [rbp + 8*r14 + 268435456]
+
+// CHECK: {vex} vpdpbusds ymm6, ymm5, ymmword ptr [r8 + 4*rax + 291]
+// CHECK: encoding: [0xc4,0xc2,0x55,0x51,0xb4,0x80,0x23,0x01,0x00,0x00]
+          {vex} vpdpbusds ymm6, ymm5, ymmword ptr [r8 + 4*rax + 291]
+
+// CHECK: {vex} vpdpbusds ymm6, ymm5, ymmword ptr [rip]
+// CHECK: encoding: [0xc4,0xe2,0x55,0x51,0x35,0x00,0x00,0x00,0x00]
+          {vex} vpdpbusds ymm6, ymm5, ymmword ptr [rip]
+
+// CHECK: {vex} vpdpbusds ymm6, ymm5, ymmword ptr [2*rbp - 1024]
+// CHECK: encoding: [0xc4,0xe2,0x55,0x51,0x34,0x6d,0x00,0xfc,0xff,0xff]
+          {vex} vpdpbusds ymm6, ymm5, ymmword ptr [2*rbp - 1024]
+
+// CHECK: {vex} vpdpbusds ymm6, ymm5, ymmword ptr [rcx + 4064]
+// CHECK: encoding: [0xc4,0xe2,0x55,0x51,0xb1,0xe0,0x0f,0x00,0x00]
+          {vex} vpdpbusds ymm6, ymm5, ymmword ptr [rcx + 4064]
+
+// CHECK: {vex} vpdpbusds ymm6, ymm5, ymmword ptr [rdx - 4096]
+// CHECK: encoding: [0xc4,0xe2,0x55,0x51,0xb2,0x00,0xf0,0xff,0xff]
+          {vex} vpdpbusds ymm6, ymm5, ymmword ptr [rdx - 4096]
+
+// CHECK: {vex} vpdpbusds xmm6, xmm5, xmmword ptr [rbp + 8*r14 + 268435456]
+// CHECK: encoding: [0xc4,0xa2,0x51,0x51,0xb4,0xf5,0x00,0x00,0x00,0x10]
+          {vex} vpdpbusds xmm6, xmm5, xmmword ptr [rbp + 8*r14 + 268435456]
+
+// CHECK: {vex} vpdpbusds xmm6, xmm5, xmmword ptr [r8 + 4*rax + 291]
+// CHECK: encoding: [0xc4,0xc2,0x51,0x51,0xb4,0x80,0x23,0x01,0x00,0x00]
+          {vex} vpdpbusds xmm6, xmm5, xmmword ptr [r8 + 4*rax + 291]
+
+// CHECK: {vex} vpdpbusds xmm6, xmm5, xmmword ptr [rip]
+// CHECK: encoding: [0xc4,0xe2,0x51,0x51,0x35,0x00,0x00,0x00,0x00]
+          {vex} vpdpbusds xmm6, xmm5, xmmword ptr [rip]
+
+// CHECK: {vex} vpdpbusds xmm6, xmm5, xmmword ptr [2*rbp - 512]
+// CHECK: encoding: [0xc4,0xe2,0x51,0x51,0x34,0x6d,0x00,0xfe,0xff,0xff]
+          {vex} vpdpbusds xmm6, xmm5, xmmword ptr [2*rbp - 512]
+
+// CHECK: {vex} vpdpbusds xmm6, xmm5, xmmword ptr [rcx + 2032]
+// CHECK: encoding: [0xc4,0xe2,0x51,0x51,0xb1,0xf0,0x07,0x00,0x00]
+          {vex} vpdpbusds xmm6, xmm5, xmmword ptr [rcx + 2032]
+
+// CHECK: {vex} vpdpbusds xmm6, xmm5, xmmword ptr [rdx - 2048]
+// CHECK: encoding: [0xc4,0xe2,0x51,0x51,0xb2,0x00,0xf8,0xff,0xff]
+          {vex} vpdpbusds xmm6, xmm5, xmmword ptr [rdx - 2048]
+
+// CHECK: {vex} vpdpwssd ymm6, ymm5, ymm4
+// CHECK: encoding: [0xc4,0xe2,0x55,0x52,0xf4]
+          {vex} vpdpwssd ymm6, ymm5, ymm4
+
+// CHECK: {vex} vpdpwssd xmm6, xmm5, xmm4
+// CHECK: encoding: [0xc4,0xe2,0x51,0x52,0xf4]
+          {vex} vpdpwssd xmm6, xmm5, xmm4
+
+// CHECK: {vex} vpdpwssd ymm6, ymm5, ymmword ptr [rbp + 8*r14 + 268435456]
+// CHECK: encoding: [0xc4,0xa2,0x55,0x52,0xb4,0xf5,0x00,0x00,0x00,0x10]
+          {vex} vpdpwssd ymm6, ymm5, ymmword ptr [rbp + 8*r14 + 268435456]
+
+// CHECK: {vex} vpdpwssd ymm6, ymm5, ymmword ptr [r8 + 4*rax + 291]
+// CHECK: encoding: [0xc4,0xc2,0x55,0x52,0xb4,0x80,0x23,0x01,0x00,0x00]
+          {vex} vpdpwssd ymm6, ymm5, ymmword ptr [r8 + 4*rax + 291]
+
+// CHECK: {vex} vpdpwssd ymm6, ymm5, ymmword ptr [rip]
+// CHECK: encoding: [0xc4,0xe2,0x55,0x52,0x35,0x00,0x00,0x00,0x00]
+          {vex} vpdpwssd ymm6, ymm5, ymmword ptr [rip]
+
+// CHECK: {vex} vpdpwssd ymm6, ymm5, ymmword ptr [2*rbp - 1024]
+// CHECK: encoding: [0xc4,0xe2,0x55,0x52,0x34,0x6d,0x00,0xfc,0xff,0xff]
+          {vex} vpdpwssd ymm6, ymm5, ymmword ptr [2*rbp - 1024]
+
+// CHECK: {vex} vpdpwssd ymm6, ymm5, ymmword ptr [rcx + 4064]
+// CHECK: encoding: [0xc4,0xe2,0x55,0x52,0xb1,0xe0,0x0f,0x00,0x00]
+          {vex} vpdpwssd ymm6, ymm5, ymmword ptr [rcx + 4064]
+
+// CHECK: {vex} vpdpwssd ymm6, ymm5, ymmword ptr [rdx - 4096]
+// CHECK: encoding: [0xc4,0xe2,0x55,0x52,0xb2,0x00,0xf0,0xff,0xff]
+          {vex} vpdpwssd ymm6, ymm5, ymmword ptr [rdx - 4096]
+
+// CHECK: {vex} vpdpwssd xmm6, xmm5, xmmword ptr [rbp + 8*r14 + 268435456]
+// CHECK: encoding: [0xc4,0xa2,0x51,0x52,0xb4,0xf5,0x00,0x00,0x00,0x10]
+          {vex} vpdpwssd xmm6, xmm5, xmmword ptr [rbp + 8*r14 + 268435456]
+
+// CHECK: {vex} vpdpwssd xmm6, xmm5, xmmword ptr [r8 + 4*rax + 291]
+// CHECK: encoding: [0xc4,0xc2,0x51,0x52,0xb4,0x80,0x23,0x01,0x00,0x00]
+          {vex} vpdpwssd xmm6, xmm5, xmmword ptr [r8 + 4*rax + 291]
+
+// CHECK: {vex} vpdpwssd xmm6, xmm5, xmmword ptr [rip]
+// CHECK: encoding: [0xc4,0xe2,0x51,0x52,0x35,0x00,0x00,0x00,0x00]
+          {vex} vpdpwssd xmm6, xmm5, xmmword ptr [rip]
+
+// CHECK: {vex} vpdpwssd xmm6, xmm5, xmmword ptr [2*rbp - 512]
+// CHECK: encoding: [0xc4,0xe2,0x51,0x52,0x34,0x6d,0x00,0xfe,0xff,0xff]
+          {vex} vpdpwssd xmm6, xmm5, xmmword ptr [2*rbp - 512]
+
+// CHECK: {vex} vpdpwssd xmm6, xmm5, xmmword ptr [rcx + 2032]
+// CHECK: encoding: [0xc4,0xe2,0x51,0x52,0xb1,0xf0,0x07,0x00,0x00]
+          {vex} vpdpwssd xmm6, xmm5, xmmword ptr [rcx + 2032]
+
+// CHECK: {vex} vpdpwssd xmm6, xmm5, xmmword ptr [rdx - 2048]
+// CHECK: encoding: [0xc4,0xe2,0x51,0x52,0xb2,0x00,0xf8,0xff,0xff]
+          {vex} vpdpwssd xmm6, xmm5, xmmword ptr [rdx - 2048]
+
+// CHECK: {vex} vpdpwssds ymm6, ymm5, ymm4
+// CHECK: encoding: [0xc4,0xe2,0x55,0x53,0xf4]
+          {vex} vpdpwssds ymm6, ymm5, ymm4
+
+// CHECK: {vex} vpdpwssds xmm6, xmm5, xmm4
+// CHECK: encoding: [0xc4,0xe2,0x51,0x53,0xf4]
+          {vex} vpdpwssds xmm6, xmm5, xmm4
+
+// CHECK: {vex} vpdpwssds ymm6, ymm5, ymmword ptr [rbp + 8*r14 + 268435456]
+// CHECK: encoding: [0xc4,0xa2,0x55,0x53,0xb4,0xf5,0x00,0x00,0x00,0x10]
+          {vex} vpdpwssds ymm6, ymm5, ymmword ptr [rbp + 8*r14 + 268435456]
+
+// CHECK: {vex} vpdpwssds ymm6, ymm5, ymmword ptr [r8 + 4*rax + 291]
+// CHECK: encoding: [0xc4,0xc2,0x55,0x53,0xb4,0x80,0x23,0x01,0x00,0x00]
+          {vex} vpdpwssds ymm6, ymm5, ymmword ptr [r8 + 4*rax + 291]
+
+// CHECK: {vex} vpdpwssds ymm6, ymm5, ymmword ptr [rip]
+// CHECK: encoding: [0xc4,0xe2,0x55,0x53,0x35,0x00,0x00,0x00,0x00]
+          {vex} vpdpwssds ymm6, ymm5, ymmword ptr [rip]
+
+// CHECK: {vex} vpdpwssds ymm6, ymm5, ymmword ptr [2*rbp - 1024]
+// CHECK: encoding: [0xc4,0xe2,0x55,0x53,0x34,0x6d,0x00,0xfc,0xff,0xff]
+          {vex} vpdpwssds ymm6, ymm5, ymmword ptr [2*rbp - 1024]
+
+// CHECK: {vex} vpdpwssds ymm6, ymm5, ymmword ptr [rcx + 4064]
+// CHECK: encoding: [0xc4,0xe2,0x55,0x53,0xb1,0xe0,0x0f,0x00,0x00]
+          {vex} vpdpwssds ymm6, ymm5, ymmword ptr [rcx + 4064]
+
+// CHECK: {vex} vpdpwssds ymm6, ymm5, ymmword ptr [rdx - 4096]
+// CHECK: encoding: [0xc4,0xe2,0x55,0x53,0xb2,0x00,0xf0,0xff,0xff]
+          {vex} vpdpwssds ymm6, ymm5, ymmword ptr [rdx - 4096]
+
+// CHECK: {vex} vpdpwssds xmm6, xmm5, xmmword ptr [rbp + 8*r14 + 268435456]
+// CHECK: encoding: [0xc4,0xa2,0x51,0x53,0xb4,0xf5,0x00,0x00,0x00,0x10]
+          {vex} vpdpwssds xmm6, xmm5, xmmword ptr [rbp + 8*r14 + 268435456]
+
+// CHECK: {vex} vpdpwssds xmm6, xmm5, xmmword ptr [r8 + 4*rax + 291]
+// CHECK: encoding: [0xc4,0xc2,0x51,0x53,0xb4,0x80,0x23,0x01,0x00,0x00]
+          {vex} vpdpwssds xmm6, xmm5, xmmword ptr [r8 + 4*rax + 291]
+
+// CHECK: {vex} vpdpwssds xmm6, xmm5, xmmword ptr [rip]
+// CHECK: encoding: [0xc4,0xe2,0x51,0x53,0x35,0x00,0x00,0x00,0x00]
+          {vex} vpdpwssds xmm6, xmm5, xmmword ptr [rip]
+
+// CHECK: {vex} vpdpwssds xmm6, xmm5, xmmword ptr [2*rbp - 512]
+// CHECK: encoding: [0xc4,0xe2,0x51,0x53,0x34,0x6d,0x00,0xfe,0xff,0xff]
+          {vex} vpdpwssds xmm6, xmm5, xmmword ptr [2*rbp - 512]
+
+// CHECK: {vex} vpdpwssds xmm6, xmm5, xmmword ptr [rcx + 2032]
+// CHECK: encoding: [0xc4,0xe2,0x51,0x53,0xb1,0xf0,0x07,0x00,0x00]
+          {vex} vpdpwssds xmm6, xmm5, xmmword ptr [rcx + 2032]
+
+// CHECK: {vex} vpdpwssds xmm6, xmm5, xmmword ptr [rdx - 2048]
+// CHECK: encoding: [0xc4,0xe2,0x51,0x53,0xb2,0x00,0xf8,0xff,0xff]
+          {vex} vpdpwssds xmm6, xmm5, xmmword ptr [rdx - 2048]
+
diff --git a/llvm/test/MC/X86/x86-64-avx_vnni-encoding.s b/llvm/test/MC/X86/x86-64-avx_vnni-encoding.s
@@ -0,0 +1,226 @@
+// RUN: llvm-mc -triple x86_64-unknown-unknown -mattr=+avxvnni --show-encoding < %s  | FileCheck %s
+
+// CHECK: {vex} vpdpbusd %ymm4, %ymm5, %ymm6
+// CHECK: encoding: [0xc4,0xe2,0x55,0x50,0xf4]
+          {vex} vpdpbusd %ymm4, %ymm5, %ymm6
+
+// CHECK: {vex} vpdpbusd %xmm4, %xmm5, %xmm6
+// CHECK: encoding: [0xc4,0xe2,0x51,0x50,0xf4]
+          {vex} vpdpbusd %xmm4, %xmm5, %xmm6
+
+// CHECK: {vex} vpdpbusd  268435456(%rbp,%r14,8), %ymm5, %ymm6
+// CHECK: encoding: [0xc4,0xa2,0x55,0x50,0xb4,0xf5,0x00,0x00,0x00,0x10]
+          {vex} vpdpbusd  268435456(%rbp,%r14,8), %ymm5, %ymm6
+
+// CHECK: {vex} vpdpbusd  291(%r8,%rax,4), %ymm5, %ymm6
+// CHECK: encoding: [0xc4,0xc2,0x55,0x50,0xb4,0x80,0x23,0x01,0x00,0x00]
+          {vex} vpdpbusd  291(%r8,%rax,4), %ymm5, %ymm6
+
+// CHECK: {vex} vpdpbusd  (%rip), %ymm5, %ymm6
+// CHECK: encoding: [0xc4,0xe2,0x55,0x50,0x35,0x00,0x00,0x00,0x00]
+          {vex} vpdpbusd  (%rip), %ymm5, %ymm6
+
+// CHECK: {vex} vpdpbusd  -1024(,%rbp,2), %ymm5, %ymm6
+// CHECK: encoding: [0xc4,0xe2,0x55,0x50,0x34,0x6d,0x00,0xfc,0xff,0xff]
+          {vex} vpdpbusd  -1024(,%rbp,2), %ymm5, %ymm6
+
+// CHECK: {vex} vpdpbusd  4064(%rcx), %ymm5, %ymm6
+// CHECK: encoding: [0xc4,0xe2,0x55,0x50,0xb1,0xe0,0x0f,0x00,0x00]
+          {vex} vpdpbusd  4064(%rcx), %ymm5, %ymm6
+
+// CHECK: {vex} vpdpbusd  -4096(%rdx), %ymm5, %ymm6
+// CHECK: encoding: [0xc4,0xe2,0x55,0x50,0xb2,0x00,0xf0,0xff,0xff]
+          {vex} vpdpbusd  -4096(%rdx), %ymm5, %ymm6
+
+// CHECK: {vex} vpdpbusd  268435456(%rbp,%r14,8), %xmm5, %xmm6
+// CHECK: encoding: [0xc4,0xa2,0x51,0x50,0xb4,0xf5,0x00,0x00,0x00,0x10]
+          {vex} vpdpbusd  268435456(%rbp,%r14,8), %xmm5, %xmm6
+
+// CHECK: {vex} vpdpbusd  291(%r8,%rax,4), %xmm5, %xmm6
+// CHECK: encoding: [0xc4,0xc2,0x51,0x50,0xb4,0x80,0x23,0x01,0x00,0x00]
+          {vex} vpdpbusd  291(%r8,%rax,4), %xmm5, %xmm6
+
+// CHECK: {vex} vpdpbusd  (%rip), %xmm5, %xmm6
+// CHECK: encoding: [0xc4,0xe2,0x51,0x50,0x35,0x00,0x00,0x00,0x00]
+          {vex} vpdpbusd  (%rip), %xmm5, %xmm6
+
+// CHECK: {vex} vpdpbusd  -512(,%rbp,2), %xmm5, %xmm6
+// CHECK: encoding: [0xc4,0xe2,0x51,0x50,0x34,0x6d,0x00,0xfe,0xff,0xff]
+          {vex} vpdpbusd  -512(,%rbp,2), %xmm5, %xmm6
+
+// CHECK: {vex} vpdpbusd  2032(%rcx), %xmm5, %xmm6
+// CHECK: encoding: [0xc4,0xe2,0x51,0x50,0xb1,0xf0,0x07,0x00,0x00]
+          {vex} vpdpbusd  2032(%rcx), %xmm5, %xmm6
+
+// CHECK: {vex} vpdpbusd  -2048(%rdx), %xmm5, %xmm6
+// CHECK: encoding: [0xc4,0xe2,0x51,0x50,0xb2,0x00,0xf8,0xff,0xff]
+          {vex} vpdpbusd  -2048(%rdx), %xmm5, %xmm6
+
+// CHECK: {vex} vpdpbusds %ymm4, %ymm5, %ymm6
+// CHECK: encoding: [0xc4,0xe2,0x55,0x51,0xf4]
+          {vex} vpdpbusds %ymm4, %ymm5, %ymm6
+
+// CHECK: {vex} vpdpbusds %xmm4, %xmm5, %xmm6
+// CHECK: encoding: [0xc4,0xe2,0x51,0x51,0xf4]
+          {vex} vpdpbusds %xmm4, %xmm5, %xmm6
+
+// CHECK: {vex} vpdpbusds  268435456(%rbp,%r14,8), %ymm5, %ymm6
+// CHECK: encoding: [0xc4,0xa2,0x55,0x51,0xb4,0xf5,0x00,0x00,0x00,0x10]
+          {vex} vpdpbusds  268435456(%rbp,%r14,8), %ymm5, %ymm6
+
+// CHECK: {vex} vpdpbusds  291(%r8,%rax,4), %ymm5, %ymm6
+// CHECK: encoding: [0xc4,0xc2,0x55,0x51,0xb4,0x80,0x23,0x01,0x00,0x00]
+          {vex} vpdpbusds  291(%r8,%rax,4), %ymm5, %ymm6
+
+// CHECK: {vex} vpdpbusds  (%rip), %ymm5, %ymm6
+// CHECK: encoding: [0xc4,0xe2,0x55,0x51,0x35,0x00,0x00,0x00,0x00]
+          {vex} vpdpbusds  (%rip), %ymm5, %ymm6
+
+// CHECK: {vex} vpdpbusds  -1024(,%rbp,2), %ymm5, %ymm6
+// CHECK: encoding: [0xc4,0xe2,0x55,0x51,0x34,0x6d,0x00,0xfc,0xff,0xff]
+          {vex} vpdpbusds  -1024(,%rbp,2), %ymm5, %ymm6
+
+// CHECK: {vex} vpdpbusds  4064(%rcx), %ymm5, %ymm6
+// CHECK: encoding: [0xc4,0xe2,0x55,0x51,0xb1,0xe0,0x0f,0x00,0x00]
+          {vex} vpdpbusds  4064(%rcx), %ymm5, %ymm6
+
+// CHECK: {vex} vpdpbusds  -4096(%rdx), %ymm5, %ymm6
+// CHECK: encoding: [0xc4,0xe2,0x55,0x51,0xb2,0x00,0xf0,0xff,0xff]
+          {vex} vpdpbusds  -4096(%rdx), %ymm5, %ymm6
+
+// CHECK: {vex} vpdpbusds  268435456(%rbp,%r14,8), %xmm5, %xmm6
+// CHECK: encoding: [0xc4,0xa2,0x51,0x51,0xb4,0xf5,0x00,0x00,0x00,0x10]
+          {vex} vpdpbusds  268435456(%rbp,%r14,8), %xmm5, %xmm6
+
+// CHECK: {vex} vpdpbusds  291(%r8,%rax,4), %xmm5, %xmm6
+// CHECK: encoding: [0xc4,0xc2,0x51,0x51,0xb4,0x80,0x23,0x01,0x00,0x00]
+          {vex} vpdpbusds  291(%r8,%rax,4), %xmm5, %xmm6
+
+// CHECK: {vex} vpdpbusds  (%rip), %xmm5, %xmm6
+// CHECK: encoding: [0xc4,0xe2,0x51,0x51,0x35,0x00,0x00,0x00,0x00]
+          {vex} vpdpbusds  (%rip), %xmm5, %xmm6
+
+// CHECK: {vex} vpdpbusds  -512(,%rbp,2), %xmm5, %xmm6
+// CHECK: encoding: [0xc4,0xe2,0x51,0x51,0x34,0x6d,0x00,0xfe,0xff,0xff]
+          {vex} vpdpbusds  -512(,%rbp,2), %xmm5, %xmm6
+
+// CHECK: {vex} vpdpbusds  2032(%rcx), %xmm5, %xmm6
+// CHECK: encoding: [0xc4,0xe2,0x51,0x51,0xb1,0xf0,0x07,0x00,0x00]
+          {vex} vpdpbusds  2032(%rcx), %xmm5, %xmm6
+
+// CHECK: {vex} vpdpbusds  -2048(%rdx), %xmm5, %xmm6
+// CHECK: encoding: [0xc4,0xe2,0x51,0x51,0xb2,0x00,0xf8,0xff,0xff]
+          {vex} vpdpbusds  -2048(%rdx), %xmm5, %xmm6
+
+// CHECK: {vex} vpdpwssd %ymm4, %ymm5, %ymm6
+// CHECK: encoding: [0xc4,0xe2,0x55,0x52,0xf4]
+          {vex} vpdpwssd %ymm4, %ymm5, %ymm6
+
+// CHECK: {vex} vpdpwssd %xmm4, %xmm5, %xmm6
+// CHECK: encoding: [0xc4,0xe2,0x51,0x52,0xf4]
+          {vex} vpdpwssd %xmm4, %xmm5, %xmm6
+
+// CHECK: {vex} vpdpwssd  268435456(%rbp,%r14,8), %ymm5, %ymm6
+// CHECK: encoding: [0xc4,0xa2,0x55,0x52,0xb4,0xf5,0x00,0x00,0x00,0x10]
+          {vex} vpdpwssd  268435456(%rbp,%r14,8), %ymm5, %ymm6
+
+// CHECK: {vex} vpdpwssd  291(%r8,%rax,4), %ymm5, %ymm6
+// CHECK: encoding: [0xc4,0xc2,0x55,0x52,0xb4,0x80,0x23,0x01,0x00,0x00]
+          {vex} vpdpwssd  291(%r8,%rax,4), %ymm5, %ymm6
+
+// CHECK: {vex} vpdpwssd  (%rip), %ymm5, %ymm6
+// CHECK: encoding: [0xc4,0xe2,0x55,0x52,0x35,0x00,0x00,0x00,0x00]
+          {vex} vpdpwssd  (%rip), %ymm5, %ymm6
+
+// CHECK: {vex} vpdpwssd  -1024(,%rbp,2), %ymm5, %ymm6
+// CHECK: encoding: [0xc4,0xe2,0x55,0x52,0x34,0x6d,0x00,0xfc,0xff,0xff]
+          {vex} vpdpwssd  -1024(,%rbp,2), %ymm5, %ymm6
+
+// CHECK: {vex} vpdpwssd  4064(%rcx), %ymm5, %ymm6
+// CHECK: encoding: [0xc4,0xe2,0x55,0x52,0xb1,0xe0,0x0f,0x00,0x00]
+          {vex} vpdpwssd  4064(%rcx), %ymm5, %ymm6
+
+// CHECK: {vex} vpdpwssd  -4096(%rdx), %ymm5, %ymm6
+// CHECK: encoding: [0xc4,0xe2,0x55,0x52,0xb2,0x00,0xf0,0xff,0xff]
+          {vex} vpdpwssd  -4096(%rdx), %ymm5, %ymm6
+
+// CHECK: {vex} vpdpwssd  268435456(%rbp,%r14,8), %xmm5, %xmm6
+// CHECK: encoding: [0xc4,0xa2,0x51,0x52,0xb4,0xf5,0x00,0x00,0x00,0x10]
+          {vex} vpdpwssd  268435456(%rbp,%r14,8), %xmm5, %xmm6
+
+// CHECK: {vex} vpdpwssd  291(%r8,%rax,4), %xmm5, %xmm6
+// CHECK: encoding: [0xc4,0xc2,0x51,0x52,0xb4,0x80,0x23,0x01,0x00,0x00]
+          {vex} vpdpwssd  291(%r8,%rax,4), %xmm5, %xmm6
+
+// CHECK: {vex} vpdpwssd  (%rip), %xmm5, %xmm6
+// CHECK: encoding: [0xc4,0xe2,0x51,0x52,0x35,0x00,0x00,0x00,0x00]
+          {vex} vpdpwssd  (%rip), %xmm5, %xmm6
+
+// CHECK: {vex} vpdpwssd  -512(,%rbp,2), %xmm5, %xmm6
+// CHECK: encoding: [0xc4,0xe2,0x51,0x52,0x34,0x6d,0x00,0xfe,0xff,0xff]
+          {vex} vpdpwssd  -512(,%rbp,2), %xmm5, %xmm6
+
+// CHECK: {vex} vpdpwssd  2032(%rcx), %xmm5, %xmm6
+// CHECK: encoding: [0xc4,0xe2,0x51,0x52,0xb1,0xf0,0x07,0x00,0x00]
+          {vex} vpdpwssd  2032(%rcx), %xmm5, %xmm6
+
+// CHECK: {vex} vpdpwssd  -2048(%rdx), %xmm5, %xmm6
+// CHECK: encoding: [0xc4,0xe2,0x51,0x52,0xb2,0x00,0xf8,0xff,0xff]
+          {vex} vpdpwssd  -2048(%rdx), %xmm5, %xmm6
+
+// CHECK: {vex} vpdpwssds %ymm4, %ymm5, %ymm6
+// CHECK: encoding: [0xc4,0xe2,0x55,0x53,0xf4]
+          {vex} vpdpwssds %ymm4, %ymm5, %ymm6
+
+// CHECK: {vex} vpdpwssds %xmm4, %xmm5, %xmm6
+// CHECK: encoding: [0xc4,0xe2,0x51,0x53,0xf4]
+          {vex} vpdpwssds %xmm4, %xmm5, %xmm6
+
+// CHECK: {vex} vpdpwssds  268435456(%rbp,%r14,8), %ymm5, %ymm6
+// CHECK: encoding: [0xc4,0xa2,0x55,0x53,0xb4,0xf5,0x00,0x00,0x00,0x10]
+          {vex} vpdpwssds  268435456(%rbp,%r14,8), %ymm5, %ymm6
+
+// CHECK: {vex} vpdpwssds  291(%r8,%rax,4), %ymm5, %ymm6
+// CHECK: encoding: [0xc4,0xc2,0x55,0x53,0xb4,0x80,0x23,0x01,0x00,0x00]
+          {vex} vpdpwssds  291(%r8,%rax,4), %ymm5, %ymm6
+
+// CHECK: {vex} vpdpwssds  (%rip), %ymm5, %ymm6
+// CHECK: encoding: [0xc4,0xe2,0x55,0x53,0x35,0x00,0x00,0x00,0x00]
+          {vex} vpdpwssds  (%rip), %ymm5, %ymm6
+
+// CHECK: {vex} vpdpwssds  -1024(,%rbp,2), %ymm5, %ymm6
+// CHECK: encoding: [0xc4,0xe2,0x55,0x53,0x34,0x6d,0x00,0xfc,0xff,0xff]
+          {vex} vpdpwssds  -1024(,%rbp,2), %ymm5, %ymm6
+
+// CHECK: {vex} vpdpwssds  4064(%rcx), %ymm5, %ymm6
+// CHECK: encoding: [0xc4,0xe2,0x55,0x53,0xb1,0xe0,0x0f,0x00,0x00]
+          {vex} vpdpwssds  4064(%rcx), %ymm5, %ymm6
+
+// CHECK: {vex} vpdpwssds  -4096(%rdx), %ymm5, %ymm6
+// CHECK: encoding: [0xc4,0xe2,0x55,0x53,0xb2,0x00,0xf0,0xff,0xff]
+          {vex} vpdpwssds  -4096(%rdx), %ymm5, %ymm6
+
+// CHECK: {vex} vpdpwssds  268435456(%rbp,%r14,8), %xmm5, %xmm6
+// CHECK: encoding: [0xc4,0xa2,0x51,0x53,0xb4,0xf5,0x00,0x00,0x00,0x10]
+          {vex} vpdpwssds  268435456(%rbp,%r14,8), %xmm5, %xmm6
+
+// CHECK: {vex} vpdpwssds  291(%r8,%rax,4), %xmm5, %xmm6
+// CHECK: encoding: [0xc4,0xc2,0x51,0x53,0xb4,0x80,0x23,0x01,0x00,0x00]
+          {vex} vpdpwssds  291(%r8,%rax,4), %xmm5, %xmm6
+
+// CHECK: {vex} vpdpwssds  (%rip), %xmm5, %xmm6
+// CHECK: encoding: [0xc4,0xe2,0x51,0x53,0x35,0x00,0x00,0x00,0x00]
+          {vex} vpdpwssds  (%rip), %xmm5, %xmm6
+
+// CHECK: {vex} vpdpwssds  -512(,%rbp,2), %xmm5, %xmm6
+// CHECK: encoding: [0xc4,0xe2,0x51,0x53,0x34,0x6d,0x00,0xfe,0xff,0xff]
+          {vex} vpdpwssds  -512(,%rbp,2), %xmm5, %xmm6
+
+// CHECK: {vex} vpdpwssds  2032(%rcx), %xmm5, %xmm6
+// CHECK: encoding: [0xc4,0xe2,0x51,0x53,0xb1,0xf0,0x07,0x00,0x00]
+          {vex} vpdpwssds  2032(%rcx), %xmm5, %xmm6
+
+// CHECK: {vex} vpdpwssds  -2048(%rdx), %xmm5, %xmm6
+// CHECK: encoding: [0xc4,0xe2,0x51,0x53,0xb2,0x00,0xf8,0xff,0xff]
+          {vex} vpdpwssds  -2048(%rdx), %xmm5, %xmm6
+