[x86][icelake]BITALG
vpopcnt{b,w}
Differential Revision: https://reviews.llvm.org/D40213



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@318748 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/X86/vector-popcnt-128.ll b/test/CodeGen/X86/vector-popcnt-128.ll
index d2f3378..9a0f85b 100644
--- a/test/CodeGen/X86/vector-popcnt-128.ll
+++ b/test/CodeGen/X86/vector-popcnt-128.ll
@@ -6,6 +6,8 @@
 ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx | FileCheck %s --check-prefix=ALL --check-prefix=AVX --check-prefix=AVX1
 ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx2 | FileCheck %s --check-prefix=ALL --check-prefix=AVX --check-prefix=AVX2
 ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx512vpopcntdq | FileCheck %s --check-prefix=ALL --check-prefix=AVX --check-prefix=AVX512VPOPCNTDQ
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx512bitalg | FileCheck %s --check-prefix=ALL --check-prefix=BITALG_NOVLX
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx512bitalg,+avx512vl | FileCheck %s --check-prefix=ALL --check-prefix=BITALG
 
 define <2 x i64> @testv2i64(<2 x i64> %in) nounwind {
 ; SSE2-LABEL: testv2i64:
@@ -381,6 +383,19 @@
 ; AVX512VPOPCNTDQ-NEXT:    vpmovqw %zmm0, %xmm0
 ; AVX512VPOPCNTDQ-NEXT:    vzeroupper
 ; AVX512VPOPCNTDQ-NEXT:    retq
+;
+; BITALG_NOVLX-LABEL: testv8i16:
+; BITALG_NOVLX:       # BB#0:
+; BITALG_NOVLX-NEXT:    # kill: %XMM0<def> %XMM0<kill> %ZMM0<def>
+; BITALG_NOVLX-NEXT:    vpopcntw %zmm0, %zmm0
+; BITALG_NOVLX-NEXT:    # kill: %XMM0<def> %XMM0<kill> %ZMM0<kill>
+; BITALG_NOVLX-NEXT:    vzeroupper
+; BITALG_NOVLX-NEXT:    retq
+;
+; BITALG-LABEL: testv8i16:
+; BITALG:       # BB#0:
+; BITALG-NEXT:    vpopcntw %xmm0, %xmm0
+; BITALG-NEXT:    retq
   %out = call <8 x i16> @llvm.ctpop.v8i16(<8 x i16> %in)
   ret <8 x i16> %out
 }
@@ -485,6 +500,19 @@
 ; AVX512VPOPCNTDQ-NEXT:    vpmovdb %zmm0, %xmm0
 ; AVX512VPOPCNTDQ-NEXT:    vzeroupper
 ; AVX512VPOPCNTDQ-NEXT:    retq
+;
+; BITALG_NOVLX-LABEL: testv16i8:
+; BITALG_NOVLX:       # BB#0:
+; BITALG_NOVLX-NEXT:    # kill: %XMM0<def> %XMM0<kill> %ZMM0<def>
+; BITALG_NOVLX-NEXT:    vpopcntb %zmm0, %zmm0
+; BITALG_NOVLX-NEXT:    # kill: %XMM0<def> %XMM0<kill> %ZMM0<kill>
+; BITALG_NOVLX-NEXT:    vzeroupper
+; BITALG_NOVLX-NEXT:    retq
+;
+; BITALG-LABEL: testv16i8:
+; BITALG:       # BB#0:
+; BITALG-NEXT:    vpopcntb %xmm0, %xmm0
+; BITALG-NEXT:    retq
   %out = call <16 x i8> @llvm.ctpop.v16i8(<16 x i8> %in)
   ret <16 x i8> %out
 }
diff --git a/test/CodeGen/X86/vector-popcnt-256.ll b/test/CodeGen/X86/vector-popcnt-256.ll
index b2743f1..7f7fe1f 100644
--- a/test/CodeGen/X86/vector-popcnt-256.ll
+++ b/test/CodeGen/X86/vector-popcnt-256.ll
@@ -2,6 +2,8 @@
 ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx | FileCheck %s --check-prefix=ALL --check-prefix=AVX --check-prefix=AVX1
 ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx2 | FileCheck %s --check-prefix=ALL --check-prefix=AVX --check-prefix=AVX2
 ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx512vpopcntdq | FileCheck %s --check-prefix=ALL --check-prefix=AVX --check-prefix=AVX512VPOPCNTDQ
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx512bitalg | FileCheck %s --check-prefix=ALL --check-prefix=AVX --check-prefix=BITALG_NOVLX
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx512bitalg,+avx512vl | FileCheck %s --check-prefix=ALL --check-prefix=BITALG
 
 define <4 x i64> @testv4i64(<4 x i64> %in) nounwind {
 ; AVX1-LABEL: testv4i64:
@@ -159,6 +161,18 @@
 ; AVX512VPOPCNTDQ-NEXT:    vpopcntd %zmm0, %zmm0
 ; AVX512VPOPCNTDQ-NEXT:    vpmovdw %zmm0, %ymm0
 ; AVX512VPOPCNTDQ-NEXT:    retq
+;
+; BITALG_NOVLX-LABEL: testv16i16:
+; BITALG_NOVLX:       # BB#0:
+; BITALG_NOVLX-NEXT:    # kill: %YMM0<def> %YMM0<kill> %ZMM0<def>
+; BITALG_NOVLX-NEXT:    vpopcntw %zmm0, %zmm0
+; BITALG_NOVLX-NEXT:    # kill: %YMM0<def> %YMM0<kill> %ZMM0<kill>
+; BITALG_NOVLX-NEXT:    retq
+;
+; BITALG-LABEL: testv16i16:
+; BITALG:       # BB#0:
+; BITALG-NEXT:    vpopcntw %ymm0, %ymm0
+; BITALG-NEXT:    retq
   %out = call <16 x i16> @llvm.ctpop.v16i16(<16 x i16> %in)
   ret <16 x i16> %out
 }
@@ -207,6 +221,18 @@
 ; AVX512VPOPCNTDQ-NEXT:    vpshufb %ymm0, %ymm3, %ymm0
 ; AVX512VPOPCNTDQ-NEXT:    vpaddb %ymm2, %ymm0, %ymm0
 ; AVX512VPOPCNTDQ-NEXT:    retq
+;
+; BITALG_NOVLX-LABEL: testv32i8:
+; BITALG_NOVLX:       # BB#0:
+; BITALG_NOVLX-NEXT:    # kill: %YMM0<def> %YMM0<kill> %ZMM0<def>
+; BITALG_NOVLX-NEXT:    vpopcntb %zmm0, %zmm0
+; BITALG_NOVLX-NEXT:    # kill: %YMM0<def> %YMM0<kill> %ZMM0<kill>
+; BITALG_NOVLX-NEXT:    retq
+;
+; BITALG-LABEL: testv32i8:
+; BITALG:       # BB#0:
+; BITALG-NEXT:    vpopcntb %ymm0, %ymm0
+; BITALG-NEXT:    retq
   %out = call <32 x i8> @llvm.ctpop.v32i8(<32 x i8> %in)
   ret <32 x i8> %out
 }
diff --git a/test/CodeGen/X86/vector-popcnt-512.ll b/test/CodeGen/X86/vector-popcnt-512.ll
index 4421f32..6bd64cc 100644
--- a/test/CodeGen/X86/vector-popcnt-512.ll
+++ b/test/CodeGen/X86/vector-popcnt-512.ll
@@ -3,6 +3,7 @@
 ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx512bw | FileCheck %s --check-prefix=AVX512 --check-prefix=AVX512BW
 ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx512vpopcntdq | FileCheck %s --check-prefix=AVX512 --check-prefix=AVX512VPOPCNTDQ --check-prefix=AVX512VPOPCNTDQ-NOBW
 ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx512vpopcntdq,+avx512bw | FileCheck %s --check-prefix=AVX512 --check-prefix=AVX512VPOPCNTDQ --check-prefix=AVX512VPOPCNTDQ-BW
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx512bitalg | FileCheck %s --check-prefix=AVX512 --check-prefix=BITALG
 
 define <8 x i64> @testv8i64(<8 x i64> %in) nounwind {
 ; AVX512F-LABEL: testv8i64:
@@ -172,6 +173,11 @@
 ; AVX512VPOPCNTDQ-BW-NEXT:    vpaddb %zmm0, %zmm1, %zmm0
 ; AVX512VPOPCNTDQ-BW-NEXT:    vpsrlw $8, %zmm0, %zmm0
 ; AVX512VPOPCNTDQ-BW-NEXT:    retq
+;
+; BITALG-LABEL: testv32i16:
+; BITALG:       # BB#0:
+; BITALG-NEXT:    vpopcntw %zmm0, %zmm0
+; BITALG-NEXT:    retq
   %out = call <32 x i16> @llvm.ctpop.v32i16(<32 x i16> %in)
   ret <32 x i16> %out
 }
@@ -236,6 +242,11 @@
 ; AVX512VPOPCNTDQ-BW-NEXT:    vpshufb %zmm0, %zmm3, %zmm0
 ; AVX512VPOPCNTDQ-BW-NEXT:    vpaddb %zmm2, %zmm0, %zmm0
 ; AVX512VPOPCNTDQ-BW-NEXT:    retq
+;
+; BITALG-LABEL: testv64i8:
+; BITALG:       # BB#0:
+; BITALG-NEXT:    vpopcntb %zmm0, %zmm0
+; BITALG-NEXT:    retq
   %out = call <64 x i8> @llvm.ctpop.v64i8(<64 x i8> %in)
   ret <64 x i8> %out
 }
diff --git a/test/CodeGen/X86/vector-tzcnt-128.ll b/test/CodeGen/X86/vector-tzcnt-128.ll
index 5f00e55..bf604f7 100644
--- a/test/CodeGen/X86/vector-tzcnt-128.ll
+++ b/test/CodeGen/X86/vector-tzcnt-128.ll
@@ -8,6 +8,8 @@
 ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx512cd,+avx512vl | FileCheck %s --check-prefix=ALL --check-prefix=AVX --check-prefix=AVX512CDVL
 ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx512cd,-avx512vl | FileCheck %s --check-prefix=ALL --check-prefix=AVX --check-prefix=AVX512CD
 ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx512vpopcntdq | FileCheck %s --check-prefix=ALL --check-prefix=AVX512VPOPCNTDQ
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx512bitalg | FileCheck %s --check-prefix=ALL --check-prefix=BITALG_NOVLX
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx512bitalg,+avx512vl | FileCheck %s --check-prefix=ALL --check-prefix=BITALG
 ;
 ; Just one 32-bit run to make sure we do reasonable things for i64 tzcnt.
 ; RUN: llc < %s -mtriple=i686-unknown-unknown -mattr=+sse4.1 | FileCheck %s --check-prefix=ALL --check-prefix=X32-SSE --check-prefix=X32-SSE41
@@ -934,6 +936,28 @@
 ; AVX512VPOPCNTDQ-NEXT:    vzeroupper
 ; AVX512VPOPCNTDQ-NEXT:    retq
 ;
+; BITALG_NOVLX-LABEL: testv8i16:
+; BITALG_NOVLX:       # BB#0:
+; BITALG_NOVLX-NEXT:    vpxor %xmm1, %xmm1, %xmm1
+; BITALG_NOVLX-NEXT:    vpsubw %xmm0, %xmm1, %xmm1
+; BITALG_NOVLX-NEXT:    vpand %xmm1, %xmm0, %xmm0
+; BITALG_NOVLX-NEXT:    vpcmpeqd %xmm1, %xmm1, %xmm1
+; BITALG_NOVLX-NEXT:    vpaddw %xmm1, %xmm0, %xmm0
+; BITALG_NOVLX-NEXT:    vpopcntw %zmm0, %zmm0
+; BITALG_NOVLX-NEXT:    # kill: %XMM0<def> %XMM0<kill> %ZMM0<kill>
+; BITALG_NOVLX-NEXT:    vzeroupper
+; BITALG_NOVLX-NEXT:    retq
+;
+; BITALG-LABEL: testv8i16:
+; BITALG:       # BB#0:
+; BITALG-NEXT:    vpxor %xmm1, %xmm1, %xmm1
+; BITALG-NEXT:    vpsubw %xmm0, %xmm1, %xmm1
+; BITALG-NEXT:    vpand %xmm1, %xmm0, %xmm0
+; BITALG-NEXT:    vpcmpeqd %xmm1, %xmm1, %xmm1
+; BITALG-NEXT:    vpaddw %xmm1, %xmm0, %xmm0
+; BITALG-NEXT:    vpopcntw %xmm0, %xmm0
+; BITALG-NEXT:    retq
+;
 ; X32-SSE-LABEL: testv8i16:
 ; X32-SSE:       # BB#0:
 ; X32-SSE-NEXT:    pxor %xmm1, %xmm1
@@ -1235,6 +1259,28 @@
 ; AVX512VPOPCNTDQ-NEXT:    vzeroupper
 ; AVX512VPOPCNTDQ-NEXT:    retq
 ;
+; BITALG_NOVLX-LABEL: testv16i8:
+; BITALG_NOVLX:       # BB#0:
+; BITALG_NOVLX-NEXT:    vpxor %xmm1, %xmm1, %xmm1
+; BITALG_NOVLX-NEXT:    vpsubb %xmm0, %xmm1, %xmm1
+; BITALG_NOVLX-NEXT:    vpand %xmm1, %xmm0, %xmm0
+; BITALG_NOVLX-NEXT:    vpcmpeqd %xmm1, %xmm1, %xmm1
+; BITALG_NOVLX-NEXT:    vpaddb %xmm1, %xmm0, %xmm0
+; BITALG_NOVLX-NEXT:    vpopcntb %zmm0, %zmm0
+; BITALG_NOVLX-NEXT:    # kill: %XMM0<def> %XMM0<kill> %ZMM0<kill>
+; BITALG_NOVLX-NEXT:    vzeroupper
+; BITALG_NOVLX-NEXT:    retq
+;
+; BITALG-LABEL: testv16i8:
+; BITALG:       # BB#0:
+; BITALG-NEXT:    vpxor %xmm1, %xmm1, %xmm1
+; BITALG-NEXT:    vpsubb %xmm0, %xmm1, %xmm1
+; BITALG-NEXT:    vpand %xmm1, %xmm0, %xmm0
+; BITALG-NEXT:    vpcmpeqd %xmm1, %xmm1, %xmm1
+; BITALG-NEXT:    vpaddb %xmm1, %xmm0, %xmm0
+; BITALG-NEXT:    vpopcntb %xmm0, %xmm0
+; BITALG-NEXT:    retq
+;
 ; X32-SSE-LABEL: testv16i8:
 ; X32-SSE:       # BB#0:
 ; X32-SSE-NEXT:    pxor %xmm1, %xmm1
diff --git a/test/CodeGen/X86/vector-tzcnt-256.ll b/test/CodeGen/X86/vector-tzcnt-256.ll
index 39d6d4c..7b6fe21 100644
--- a/test/CodeGen/X86/vector-tzcnt-256.ll
+++ b/test/CodeGen/X86/vector-tzcnt-256.ll
@@ -4,6 +4,8 @@
 ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx512cd,+avx512vl | FileCheck %s --check-prefix=ALL --check-prefix=AVX --check-prefix=AVX512CDVL
 ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx512cd,-avx512vl | FileCheck %s --check-prefix=ALL --check-prefix=AVX --check-prefix=AVX512CD
 ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx512vpopcntdq | FileCheck %s --check-prefix=ALL --check-prefix=AVX --check-prefix=AVX512VPOPCNTDQ
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx512bitalg | FileCheck %s --check-prefix=ALL --check-prefix=BITALG_NOVLX
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx512bitalg,+avx512vl | FileCheck %s --check-prefix=ALL --check-prefix=BITALG
 ;
 ; Just one 32-bit run to make sure we do reasonable things for i64 tzcnt.
 ; RUN: llc < %s -mtriple=i686-unknown-unknown -mattr=+avx2 | FileCheck %s --check-prefix=ALL --check-prefix=X32-AVX --check-prefix=X32-AVX2
@@ -589,6 +591,27 @@
 ; AVX512VPOPCNTDQ-NEXT:    vpmovdw %zmm0, %ymm0
 ; AVX512VPOPCNTDQ-NEXT:    retq
 ;
+; BITALG_NOVLX-LABEL: testv16i16:
+; BITALG_NOVLX:       # BB#0:
+; BITALG_NOVLX-NEXT:    vpxor %xmm1, %xmm1, %xmm1
+; BITALG_NOVLX-NEXT:    vpsubw %ymm0, %ymm1, %ymm1
+; BITALG_NOVLX-NEXT:    vpand %ymm1, %ymm0, %ymm0
+; BITALG_NOVLX-NEXT:    vpcmpeqd %ymm1, %ymm1, %ymm1
+; BITALG_NOVLX-NEXT:    vpaddw %ymm1, %ymm0, %ymm0
+; BITALG_NOVLX-NEXT:    vpopcntw %zmm0, %zmm0
+; BITALG_NOVLX-NEXT:    # kill: %YMM0<def> %YMM0<kill> %ZMM0<kill>
+; BITALG_NOVLX-NEXT:    retq
+;
+; BITALG-LABEL: testv16i16:
+; BITALG:       # BB#0:
+; BITALG-NEXT:    vpxor %xmm1, %xmm1, %xmm1
+; BITALG-NEXT:    vpsubw %ymm0, %ymm1, %ymm1
+; BITALG-NEXT:    vpand %ymm1, %ymm0, %ymm0
+; BITALG-NEXT:    vpcmpeqd %ymm1, %ymm1, %ymm1
+; BITALG-NEXT:    vpaddw %ymm1, %ymm0, %ymm0
+; BITALG-NEXT:    vpopcntw %ymm0, %ymm0
+; BITALG-NEXT:    retq
+;
 ; X32-AVX-LABEL: testv16i16:
 ; X32-AVX:       # BB#0:
 ; X32-AVX-NEXT:    vpxor %xmm1, %xmm1, %xmm1
@@ -839,6 +862,27 @@
 ; AVX512VPOPCNTDQ-NEXT:    vpaddb %ymm2, %ymm0, %ymm0
 ; AVX512VPOPCNTDQ-NEXT:    retq
 ;
+; BITALG_NOVLX-LABEL: testv32i8:
+; BITALG_NOVLX:       # BB#0:
+; BITALG_NOVLX-NEXT:    vpxor %xmm1, %xmm1, %xmm1
+; BITALG_NOVLX-NEXT:    vpsubb %ymm0, %ymm1, %ymm1
+; BITALG_NOVLX-NEXT:    vpand %ymm1, %ymm0, %ymm0
+; BITALG_NOVLX-NEXT:    vpcmpeqd %ymm1, %ymm1, %ymm1
+; BITALG_NOVLX-NEXT:    vpaddb %ymm1, %ymm0, %ymm0
+; BITALG_NOVLX-NEXT:    vpopcntb %zmm0, %zmm0
+; BITALG_NOVLX-NEXT:    # kill: %YMM0<def> %YMM0<kill> %ZMM0<kill>
+; BITALG_NOVLX-NEXT:    retq
+;
+; BITALG-LABEL: testv32i8:
+; BITALG:       # BB#0:
+; BITALG-NEXT:    vpxor %xmm1, %xmm1, %xmm1
+; BITALG-NEXT:    vpsubb %ymm0, %ymm1, %ymm1
+; BITALG-NEXT:    vpand %ymm1, %ymm0, %ymm0
+; BITALG-NEXT:    vpcmpeqd %ymm1, %ymm1, %ymm1
+; BITALG-NEXT:    vpaddb %ymm1, %ymm0, %ymm0
+; BITALG-NEXT:    vpopcntb %ymm0, %ymm0
+; BITALG-NEXT:    retq
+;
 ; X32-AVX-LABEL: testv32i8:
 ; X32-AVX:       # BB#0:
 ; X32-AVX-NEXT:    vpxor %xmm1, %xmm1, %xmm1
diff --git a/test/CodeGen/X86/vector-tzcnt-512.ll b/test/CodeGen/X86/vector-tzcnt-512.ll
index 4d38588..0890ae5 100644
--- a/test/CodeGen/X86/vector-tzcnt-512.ll
+++ b/test/CodeGen/X86/vector-tzcnt-512.ll
@@ -3,6 +3,7 @@
 ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx512f,+avx512cd,+avx512bw | FileCheck %s --check-prefix=ALL --check-prefix=AVX512CDBW
 ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx512f,+avx512bw | FileCheck %s --check-prefix=ALL --check-prefix=AVX512BW
 ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx512vpopcntdq | FileCheck %s --check-prefix=ALL --check-prefix=AVX512VPOPCNTDQ
+; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx512bitalg | FileCheck %s --check-prefix=ALL --check-prefix=BITALG
 
 define <8 x i64> @testv8i64(<8 x i64> %in) nounwind {
 ; AVX512CD-LABEL: testv8i64:
@@ -374,6 +375,16 @@
 ; AVX512VPOPCNTDQ-NEXT:    vpopcntd %zmm1, %zmm1
 ; AVX512VPOPCNTDQ-NEXT:    vpmovdw %zmm1, %ymm1
 ; AVX512VPOPCNTDQ-NEXT:    retq
+;
+; BITALG-LABEL: testv32i16:
+; BITALG:       # BB#0:
+; BITALG-NEXT:    vpxor %xmm1, %xmm1, %xmm1
+; BITALG-NEXT:    vpsubw %zmm0, %zmm1, %zmm1
+; BITALG-NEXT:    vpandq %zmm1, %zmm0, %zmm0
+; BITALG-NEXT:    vpternlogd $255, %zmm1, %zmm1, %zmm1
+; BITALG-NEXT:    vpaddw %zmm1, %zmm0, %zmm0
+; BITALG-NEXT:    vpopcntw %zmm0, %zmm0
+; BITALG-NEXT:    retq
   %out = call <32 x i16> @llvm.cttz.v32i16(<32 x i16> %in, i1 0)
   ret <32 x i16> %out
 }
@@ -558,6 +569,16 @@
 ; AVX512VPOPCNTDQ-NEXT:    vpshufb %ymm1, %ymm6, %ymm1
 ; AVX512VPOPCNTDQ-NEXT:    vpaddb %ymm2, %ymm1, %ymm1
 ; AVX512VPOPCNTDQ-NEXT:    retq
+;
+; BITALG-LABEL: testv64i8:
+; BITALG:       # BB#0:
+; BITALG-NEXT:    vpxor %xmm1, %xmm1, %xmm1
+; BITALG-NEXT:    vpsubb %zmm0, %zmm1, %zmm1
+; BITALG-NEXT:    vpandq %zmm1, %zmm0, %zmm0
+; BITALG-NEXT:    vpternlogd $255, %zmm1, %zmm1, %zmm1
+; BITALG-NEXT:    vpaddb %zmm1, %zmm0, %zmm0
+; BITALG-NEXT:    vpopcntb %zmm0, %zmm0
+; BITALG-NEXT:    retq
   %out = call <64 x i8> @llvm.cttz.v64i8(<64 x i8> %in, i1 0)
   ret <64 x i8> %out
 }
diff --git a/test/MC/X86/avx512bitalg-encoding.s b/test/MC/X86/avx512bitalg-encoding.s
new file mode 100644
index 0000000..bd128bd
--- /dev/null
+++ b/test/MC/X86/avx512bitalg-encoding.s
@@ -0,0 +1,114 @@
+// RUN: llvm-mc -triple x86_64-unknown-unknown -mcpu=knl -mattr=+avx512bitalg --show-encoding < %s | FileCheck %s
+
+// CHECK: vpopcntb %zmm23, %zmm21
+// CHECK: encoding: [0x62,0xa2,0x7d,0x48,0x54,0xef]
+          vpopcntb %zmm23, %zmm21
+
+// CHECK: vpopcntw %zmm23, %zmm21
+// CHECK: encoding: [0x62,0xa2,0xfd,0x48,0x54,0xef]
+          vpopcntw %zmm23, %zmm21
+
+// CHECK: vpopcntb %zmm3, %zmm1 {%k2}
+// CHECK: encoding: [0x62,0xf2,0x7d,0x4a,0x54,0xcb]
+          vpopcntb %zmm3, %zmm1 {%k2}
+
+// CHECK: vpopcntw %zmm3, %zmm1 {%k2}
+// CHECK: encoding: [0x62,0xf2,0xfd,0x4a,0x54,0xcb]
+          vpopcntw %zmm3, %zmm1 {%k2}
+
+// CHECK: vpopcntb  (%rcx), %zmm1
+// CHECK: encoding: [0x62,0xf2,0x7d,0x48,0x54,0x09]
+          vpopcntb  (%rcx), %zmm1
+
+// CHECK: vpopcntb  -256(%rsp), %zmm1
+// CHECK: encoding: [0x62,0xf2,0x7d,0x48,0x54,0x4c,0x24,0xfc]
+          vpopcntb  -256(%rsp), %zmm1
+
+// CHECK: vpopcntb  256(%rsp), %zmm1
+// CHECK: encoding: [0x62,0xf2,0x7d,0x48,0x54,0x4c,0x24,0x04]
+          vpopcntb  256(%rsp), %zmm1
+
+// CHECK: vpopcntb  268435456(%rcx,%r14,8), %zmm1
+// CHECK: encoding: [0x62,0xb2,0x7d,0x48,0x54,0x8c,0xf1,0x00,0x00,0x00,0x10]
+          vpopcntb  268435456(%rcx,%r14,8), %zmm1
+
+// CHECK: vpopcntb  -536870912(%rcx,%r14,8), %zmm1
+// CHECK: encoding: [0x62,0xb2,0x7d,0x48,0x54,0x8c,0xf1,0x00,0x00,0x00,0xe0]
+          vpopcntb  -536870912(%rcx,%r14,8), %zmm1
+
+// CHECK: vpopcntb  -536870910(%rcx,%r14,8), %zmm1
+// CHECK: encoding: [0x62,0xb2,0x7d,0x48,0x54,0x8c,0xf1,0x02,0x00,0x00,0xe0]
+          vpopcntb  -536870910(%rcx,%r14,8), %zmm1
+
+// CHECK: vpopcntw  (%rcx), %zmm1
+// CHECK: encoding: [0x62,0xf2,0xfd,0x48,0x54,0x09]
+          vpopcntw  (%rcx), %zmm1
+
+// CHECK: vpopcntw  -256(%rsp), %zmm1
+// CHECK: encoding: [0x62,0xf2,0xfd,0x48,0x54,0x4c,0x24,0xfc]
+          vpopcntw  -256(%rsp), %zmm1
+
+// CHECK: vpopcntw  256(%rsp), %zmm1
+// CHECK: encoding: [0x62,0xf2,0xfd,0x48,0x54,0x4c,0x24,0x04]
+          vpopcntw  256(%rsp), %zmm1
+
+// CHECK: vpopcntw  268435456(%rcx,%r14,8), %zmm1
+// CHECK: encoding: [0x62,0xb2,0xfd,0x48,0x54,0x8c,0xf1,0x00,0x00,0x00,0x10]
+          vpopcntw  268435456(%rcx,%r14,8), %zmm1
+
+// CHECK: vpopcntw  -536870912(%rcx,%r14,8), %zmm1
+// CHECK: encoding: [0x62,0xb2,0xfd,0x48,0x54,0x8c,0xf1,0x00,0x00,0x00,0xe0]
+          vpopcntw  -536870912(%rcx,%r14,8), %zmm1
+
+// CHECK: vpopcntw  -536870910(%rcx,%r14,8), %zmm1
+// CHECK: encoding: [0x62,0xb2,0xfd,0x48,0x54,0x8c,0xf1,0x02,0x00,0x00,0xe0]
+          vpopcntw  -536870910(%rcx,%r14,8), %zmm1
+
+// CHECK: vpopcntb  (%rcx), %zmm21 {%k2}
+// CHECK: encoding: [0x62,0xe2,0x7d,0x4a,0x54,0x29]
+          vpopcntb  (%rcx), %zmm21 {%k2}
+
+// CHECK: vpopcntb  -256(%rsp), %zmm21 {%k2}
+// CHECK: encoding: [0x62,0xe2,0x7d,0x4a,0x54,0x6c,0x24,0xfc]
+          vpopcntb  -256(%rsp), %zmm21 {%k2}
+
+// CHECK: vpopcntb  256(%rsp), %zmm21 {%k2}
+// CHECK: encoding: [0x62,0xe2,0x7d,0x4a,0x54,0x6c,0x24,0x04]
+          vpopcntb  256(%rsp), %zmm21 {%k2}
+
+// CHECK: vpopcntb  268435456(%rcx,%r14,8), %zmm21 {%k2}
+// CHECK: encoding: [0x62,0xa2,0x7d,0x4a,0x54,0xac,0xf1,0x00,0x00,0x00,0x10]
+          vpopcntb  268435456(%rcx,%r14,8), %zmm21 {%k2}
+
+// CHECK: vpopcntb  -536870912(%rcx,%r14,8), %zmm21 {%k2}
+// CHECK: encoding: [0x62,0xa2,0x7d,0x4a,0x54,0xac,0xf1,0x00,0x00,0x00,0xe0]
+          vpopcntb  -536870912(%rcx,%r14,8), %zmm21 {%k2}
+
+// CHECK: vpopcntb  -536870910(%rcx,%r14,8), %zmm21 {%k2}
+// CHECK: encoding: [0x62,0xa2,0x7d,0x4a,0x54,0xac,0xf1,0x02,0x00,0x00,0xe0]
+          vpopcntb  -536870910(%rcx,%r14,8), %zmm21 {%k2}
+
+// CHECK: vpopcntw  (%rcx), %zmm21 {%k2}
+// CHECK: encoding: [0x62,0xe2,0xfd,0x4a,0x54,0x29]
+          vpopcntw  (%rcx), %zmm21 {%k2}
+
+// CHECK: vpopcntw  -256(%rsp), %zmm21 {%k2}
+// CHECK: encoding: [0x62,0xe2,0xfd,0x4a,0x54,0x6c,0x24,0xfc]
+          vpopcntw  -256(%rsp), %zmm21 {%k2}
+
+// CHECK: vpopcntw  256(%rsp), %zmm21 {%k2}
+// CHECK: encoding: [0x62,0xe2,0xfd,0x4a,0x54,0x6c,0x24,0x04]
+          vpopcntw  256(%rsp), %zmm21 {%k2}
+
+// CHECK: vpopcntw  268435456(%rcx,%r14,8), %zmm21 {%k2}
+// CHECK: encoding: [0x62,0xa2,0xfd,0x4a,0x54,0xac,0xf1,0x00,0x00,0x00,0x10]
+          vpopcntw  268435456(%rcx,%r14,8), %zmm21 {%k2}
+
+// CHECK: vpopcntw  -536870912(%rcx,%r14,8), %zmm21 {%k2}
+// CHECK: encoding: [0x62,0xa2,0xfd,0x4a,0x54,0xac,0xf1,0x00,0x00,0x00,0xe0]
+          vpopcntw  -536870912(%rcx,%r14,8), %zmm21 {%k2}
+
+// CHECK: vpopcntw  -536870910(%rcx,%r14,8), %zmm21 {%k2}
+// CHECK: encoding: [0x62,0xa2,0xfd,0x4a,0x54,0xac,0xf1,0x02,0x00,0x00,0xe0]
+          vpopcntw  -536870910(%rcx,%r14,8), %zmm21 {%k2}
+
diff --git a/test/MC/X86/avx512vl_bitalg-encoding.s b/test/MC/X86/avx512vl_bitalg-encoding.s
new file mode 100644
index 0000000..5389866
--- /dev/null
+++ b/test/MC/X86/avx512vl_bitalg-encoding.s
@@ -0,0 +1,226 @@
+// RUN: llvm-mc -triple x86_64-unknown-unknown -mcpu=knl -mattr=+avx512vl,+avx512bitalg --show-encoding < %s | FileCheck %s
+
+// CHECK: vpopcntb %xmm23, %xmm21
+// CHECK: encoding: [0x62,0xa2,0x7d,0x08,0x54,0xef]
+          vpopcntb %xmm23, %xmm21
+
+// CHECK: vpopcntw %xmm23, %xmm21
+// CHECK: encoding: [0x62,0xa2,0xfd,0x08,0x54,0xef]
+          vpopcntw %xmm23, %xmm21
+
+// CHECK: vpopcntb %xmm3, %xmm1 {%k2}
+// CHECK: encoding: [0x62,0xf2,0x7d,0x0a,0x54,0xcb]
+          vpopcntb %xmm3, %xmm1 {%k2}
+
+// CHECK: vpopcntw %xmm3, %xmm1 {%k2}
+// CHECK: encoding: [0x62,0xf2,0xfd,0x0a,0x54,0xcb]
+          vpopcntw %xmm3, %xmm1 {%k2}
+
+// CHECK: vpopcntb  (%rcx), %xmm1
+// CHECK: encoding: [0x62,0xf2,0x7d,0x08,0x54,0x09]
+          vpopcntb  (%rcx), %xmm1
+
+// CHECK: vpopcntb  -64(%rsp), %xmm1
+// CHECK: encoding: [0x62,0xf2,0x7d,0x08,0x54,0x4c,0x24,0xfc]
+          vpopcntb  -64(%rsp), %xmm1
+
+// CHECK: vpopcntb  64(%rsp), %xmm1
+// CHECK: encoding: [0x62,0xf2,0x7d,0x08,0x54,0x4c,0x24,0x04]
+          vpopcntb  64(%rsp), %xmm1
+
+// CHECK: vpopcntb  268435456(%rcx,%r14,8), %xmm1
+// CHECK: encoding: [0x62,0xb2,0x7d,0x08,0x54,0x8c,0xf1,0x00,0x00,0x00,0x10]
+          vpopcntb  268435456(%rcx,%r14,8), %xmm1
+
+// CHECK: vpopcntb  -536870912(%rcx,%r14,8), %xmm1
+// CHECK: encoding: [0x62,0xb2,0x7d,0x08,0x54,0x8c,0xf1,0x00,0x00,0x00,0xe0]
+          vpopcntb  -536870912(%rcx,%r14,8), %xmm1
+
+// CHECK: vpopcntb  -536870910(%rcx,%r14,8), %xmm1
+// CHECK: encoding: [0x62,0xb2,0x7d,0x08,0x54,0x8c,0xf1,0x02,0x00,0x00,0xe0]
+          vpopcntb  -536870910(%rcx,%r14,8), %xmm1
+
+// CHECK: vpopcntw  (%rcx), %xmm1
+// CHECK: encoding: [0x62,0xf2,0xfd,0x08,0x54,0x09]
+          vpopcntw  (%rcx), %xmm1
+
+// CHECK: vpopcntw  -64(%rsp), %xmm1
+// CHECK: encoding: [0x62,0xf2,0xfd,0x08,0x54,0x4c,0x24,0xfc]
+          vpopcntw  -64(%rsp), %xmm1
+
+// CHECK: vpopcntw  64(%rsp), %xmm1
+// CHECK: encoding: [0x62,0xf2,0xfd,0x08,0x54,0x4c,0x24,0x04]
+          vpopcntw  64(%rsp), %xmm1
+
+// CHECK: vpopcntw  268435456(%rcx,%r14,8), %xmm1
+// CHECK: encoding: [0x62,0xb2,0xfd,0x08,0x54,0x8c,0xf1,0x00,0x00,0x00,0x10]
+          vpopcntw  268435456(%rcx,%r14,8), %xmm1
+
+// CHECK: vpopcntw  -536870912(%rcx,%r14,8), %xmm1
+// CHECK: encoding: [0x62,0xb2,0xfd,0x08,0x54,0x8c,0xf1,0x00,0x00,0x00,0xe0]
+          vpopcntw  -536870912(%rcx,%r14,8), %xmm1
+
+// CHECK: vpopcntw  -536870910(%rcx,%r14,8), %xmm1
+// CHECK: encoding: [0x62,0xb2,0xfd,0x08,0x54,0x8c,0xf1,0x02,0x00,0x00,0xe0]
+          vpopcntw  -536870910(%rcx,%r14,8), %xmm1
+
+// CHECK: vpopcntb  (%rcx), %xmm21 {%k2}
+// CHECK: encoding: [0x62,0xe2,0x7d,0x0a,0x54,0x29]
+          vpopcntb  (%rcx), %xmm21 {%k2}
+
+// CHECK: vpopcntb  -64(%rsp), %xmm21 {%k2}
+// CHECK: encoding: [0x62,0xe2,0x7d,0x0a,0x54,0x6c,0x24,0xfc]
+          vpopcntb  -64(%rsp), %xmm21 {%k2}
+
+// CHECK: vpopcntb  64(%rsp), %xmm21 {%k2}
+// CHECK: encoding: [0x62,0xe2,0x7d,0x0a,0x54,0x6c,0x24,0x04]
+          vpopcntb  64(%rsp), %xmm21 {%k2}
+
+// CHECK: vpopcntb  268435456(%rcx,%r14,8), %xmm21 {%k2}
+// CHECK: encoding: [0x62,0xa2,0x7d,0x0a,0x54,0xac,0xf1,0x00,0x00,0x00,0x10]
+          vpopcntb  268435456(%rcx,%r14,8), %xmm21 {%k2}
+
+// CHECK: vpopcntb  -536870912(%rcx,%r14,8), %xmm21 {%k2}
+// CHECK: encoding: [0x62,0xa2,0x7d,0x0a,0x54,0xac,0xf1,0x00,0x00,0x00,0xe0]
+          vpopcntb  -536870912(%rcx,%r14,8), %xmm21 {%k2}
+
+// CHECK: vpopcntb  -536870910(%rcx,%r14,8), %xmm21 {%k2}
+// CHECK: encoding: [0x62,0xa2,0x7d,0x0a,0x54,0xac,0xf1,0x02,0x00,0x00,0xe0]
+          vpopcntb  -536870910(%rcx,%r14,8), %xmm21 {%k2}
+
+// CHECK: vpopcntw  (%rcx), %xmm21 {%k2}
+// CHECK: encoding: [0x62,0xe2,0xfd,0x0a,0x54,0x29]
+          vpopcntw  (%rcx), %xmm21 {%k2}
+
+// CHECK: vpopcntw  -64(%rsp), %xmm21 {%k2}
+// CHECK: encoding: [0x62,0xe2,0xfd,0x0a,0x54,0x6c,0x24,0xfc]
+          vpopcntw  -64(%rsp), %xmm21 {%k2}
+
+// CHECK: vpopcntw  64(%rsp), %xmm21 {%k2}
+// CHECK: encoding: [0x62,0xe2,0xfd,0x0a,0x54,0x6c,0x24,0x04]
+          vpopcntw  64(%rsp), %xmm21 {%k2}
+
+// CHECK: vpopcntw  268435456(%rcx,%r14,8), %xmm21 {%k2}
+// CHECK: encoding: [0x62,0xa2,0xfd,0x0a,0x54,0xac,0xf1,0x00,0x00,0x00,0x10]
+          vpopcntw  268435456(%rcx,%r14,8), %xmm21 {%k2}
+
+// CHECK: vpopcntw  -536870912(%rcx,%r14,8), %xmm21 {%k2}
+// CHECK: encoding: [0x62,0xa2,0xfd,0x0a,0x54,0xac,0xf1,0x00,0x00,0x00,0xe0]
+          vpopcntw  -536870912(%rcx,%r14,8), %xmm21 {%k2}
+
+// CHECK: vpopcntw  -536870910(%rcx,%r14,8), %xmm21 {%k2}
+// CHECK: encoding: [0x62,0xa2,0xfd,0x0a,0x54,0xac,0xf1,0x02,0x00,0x00,0xe0]
+          vpopcntw  -536870910(%rcx,%r14,8), %xmm21 {%k2}
+
+// CHECK: vpopcntb %ymm23, %ymm21
+// CHECK: encoding: [0x62,0xa2,0x7d,0x28,0x54,0xef]
+          vpopcntb %ymm23, %ymm21
+
+// CHECK: vpopcntw %ymm23, %ymm21
+// CHECK: encoding: [0x62,0xa2,0xfd,0x28,0x54,0xef]
+          vpopcntw %ymm23, %ymm21
+
+// CHECK: vpopcntb %ymm3, %ymm1 {%k2}
+// CHECK: encoding: [0x62,0xf2,0x7d,0x2a,0x54,0xcb]
+          vpopcntb %ymm3, %ymm1 {%k2}
+
+// CHECK: vpopcntw %ymm3, %ymm1 {%k2}
+// CHECK: encoding: [0x62,0xf2,0xfd,0x2a,0x54,0xcb]
+          vpopcntw %ymm3, %ymm1 {%k2}
+
+// CHECK: vpopcntb  (%rcx), %ymm1
+// CHECK: encoding: [0x62,0xf2,0x7d,0x28,0x54,0x09]
+          vpopcntb  (%rcx), %ymm1
+
+// CHECK: vpopcntb  -128(%rsp), %ymm1
+// CHECK: encoding: [0x62,0xf2,0x7d,0x28,0x54,0x4c,0x24,0xfc]
+          vpopcntb  -128(%rsp), %ymm1
+
+// CHECK: vpopcntb  128(%rsp), %ymm1
+// CHECK: encoding: [0x62,0xf2,0x7d,0x28,0x54,0x4c,0x24,0x04]
+          vpopcntb  128(%rsp), %ymm1
+
+// CHECK: vpopcntb  268435456(%rcx,%r14,8), %ymm1
+// CHECK: encoding: [0x62,0xb2,0x7d,0x28,0x54,0x8c,0xf1,0x00,0x00,0x00,0x10]
+          vpopcntb  268435456(%rcx,%r14,8), %ymm1
+
+// CHECK: vpopcntb  -536870912(%rcx,%r14,8), %ymm1
+// CHECK: encoding: [0x62,0xb2,0x7d,0x28,0x54,0x8c,0xf1,0x00,0x00,0x00,0xe0]
+          vpopcntb  -536870912(%rcx,%r14,8), %ymm1
+
+// CHECK: vpopcntb  -536870910(%rcx,%r14,8), %ymm1
+// CHECK: encoding: [0x62,0xb2,0x7d,0x28,0x54,0x8c,0xf1,0x02,0x00,0x00,0xe0]
+          vpopcntb  -536870910(%rcx,%r14,8), %ymm1
+
+// CHECK: vpopcntw  (%rcx), %ymm1
+// CHECK: encoding: [0x62,0xf2,0xfd,0x28,0x54,0x09]
+          vpopcntw  (%rcx), %ymm1
+
+// CHECK: vpopcntw  -128(%rsp), %ymm1
+// CHECK: encoding: [0x62,0xf2,0xfd,0x28,0x54,0x4c,0x24,0xfc]
+          vpopcntw  -128(%rsp), %ymm1
+
+// CHECK: vpopcntw  128(%rsp), %ymm1
+// CHECK: encoding: [0x62,0xf2,0xfd,0x28,0x54,0x4c,0x24,0x04]
+          vpopcntw  128(%rsp), %ymm1
+
+// CHECK: vpopcntw  268435456(%rcx,%r14,8), %ymm1
+// CHECK: encoding: [0x62,0xb2,0xfd,0x28,0x54,0x8c,0xf1,0x00,0x00,0x00,0x10]
+          vpopcntw  268435456(%rcx,%r14,8), %ymm1
+
+// CHECK: vpopcntw  -536870912(%rcx,%r14,8), %ymm1
+// CHECK: encoding: [0x62,0xb2,0xfd,0x28,0x54,0x8c,0xf1,0x00,0x00,0x00,0xe0]
+          vpopcntw  -536870912(%rcx,%r14,8), %ymm1
+
+// CHECK: vpopcntw  -536870910(%rcx,%r14,8), %ymm1
+// CHECK: encoding: [0x62,0xb2,0xfd,0x28,0x54,0x8c,0xf1,0x02,0x00,0x00,0xe0]
+          vpopcntw  -536870910(%rcx,%r14,8), %ymm1
+
+// CHECK: vpopcntb  (%rcx), %ymm21 {%k2}
+// CHECK: encoding: [0x62,0xe2,0x7d,0x2a,0x54,0x29]
+          vpopcntb  (%rcx), %ymm21 {%k2}
+
+// CHECK: vpopcntb  -128(%rsp), %ymm21 {%k2}
+// CHECK: encoding: [0x62,0xe2,0x7d,0x2a,0x54,0x6c,0x24,0xfc]
+          vpopcntb  -128(%rsp), %ymm21 {%k2}
+
+// CHECK: vpopcntb  128(%rsp), %ymm21 {%k2}
+// CHECK: encoding: [0x62,0xe2,0x7d,0x2a,0x54,0x6c,0x24,0x04]
+          vpopcntb  128(%rsp), %ymm21 {%k2}
+
+// CHECK: vpopcntb  268435456(%rcx,%r14,8), %ymm21 {%k2}
+// CHECK: encoding: [0x62,0xa2,0x7d,0x2a,0x54,0xac,0xf1,0x00,0x00,0x00,0x10]
+          vpopcntb  268435456(%rcx,%r14,8), %ymm21 {%k2}
+
+// CHECK: vpopcntb  -536870912(%rcx,%r14,8), %ymm21 {%k2}
+// CHECK: encoding: [0x62,0xa2,0x7d,0x2a,0x54,0xac,0xf1,0x00,0x00,0x00,0xe0]
+          vpopcntb  -536870912(%rcx,%r14,8), %ymm21 {%k2}
+
+// CHECK: vpopcntb  -536870910(%rcx,%r14,8), %ymm21 {%k2}
+// CHECK: encoding: [0x62,0xa2,0x7d,0x2a,0x54,0xac,0xf1,0x02,0x00,0x00,0xe0]
+          vpopcntb  -536870910(%rcx,%r14,8), %ymm21 {%k2}
+
+// CHECK: vpopcntw  (%rcx), %ymm21 {%k2}
+// CHECK: encoding: [0x62,0xe2,0xfd,0x2a,0x54,0x29]
+          vpopcntw  (%rcx), %ymm21 {%k2}
+
+// CHECK: vpopcntw  -128(%rsp), %ymm21 {%k2}
+// CHECK: encoding: [0x62,0xe2,0xfd,0x2a,0x54,0x6c,0x24,0xfc]
+          vpopcntw  -128(%rsp), %ymm21 {%k2}
+
+// CHECK: vpopcntw  128(%rsp), %ymm21 {%k2}
+// CHECK: encoding: [0x62,0xe2,0xfd,0x2a,0x54,0x6c,0x24,0x04]
+          vpopcntw  128(%rsp), %ymm21 {%k2}
+
+// CHECK: vpopcntw  268435456(%rcx,%r14,8), %ymm21 {%k2}
+// CHECK: encoding: [0x62,0xa2,0xfd,0x2a,0x54,0xac,0xf1,0x00,0x00,0x00,0x10]
+          vpopcntw  268435456(%rcx,%r14,8), %ymm21 {%k2}
+
+// CHECK: vpopcntw  -536870912(%rcx,%r14,8), %ymm21 {%k2}
+// CHECK: encoding: [0x62,0xa2,0xfd,0x2a,0x54,0xac,0xf1,0x00,0x00,0x00,0xe0]
+          vpopcntw  -536870912(%rcx,%r14,8), %ymm21 {%k2}
+
+// CHECK: vpopcntw  -536870910(%rcx,%r14,8), %ymm21 {%k2}
+// CHECK: encoding: [0x62,0xa2,0xfd,0x2a,0x54,0xac,0xf1,0x02,0x00,0x00,0xe0]
+          vpopcntw  -536870910(%rcx,%r14,8), %ymm21 {%k2}
+