[llvm] r368623 - [X86] Allow combineTruncateWithSat to use pack instructions for i16->i8 without AVX512BW.
Craig Topper via llvm-commits
llvm-commits at lists.llvm.org
Mon Aug 12 15:18:24 PDT 2019
Author: ctopper
Date: Mon Aug 12 15:18:23 2019
New Revision: 368623
URL: http://llvm.org/viewvc/llvm-project?rev=368623&view=rev
Log:
[X86] Allow combineTruncateWithSat to use pack instructions for i16->i8 without AVX512BW.
We need AVX512BW to be able to truncate an i16 vector. If we don't
have that we have to extend i16->i32, then trunc, i32->i8. But we
won't be able to remove the min/max if we do that. At least not
without more special handling.
Modified:
llvm/trunk/lib/Target/X86/X86ISelLowering.cpp
llvm/trunk/test/CodeGen/X86/avx512-trunc.ll
llvm/trunk/test/CodeGen/X86/masked_store_trunc_ssat.ll
llvm/trunk/test/CodeGen/X86/vector-trunc-packus.ll
llvm/trunk/test/CodeGen/X86/vector-trunc-ssat.ll
Modified: llvm/trunk/lib/Target/X86/X86ISelLowering.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86ISelLowering.cpp?rev=368623&r1=368622&r2=368623&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86ISelLowering.cpp (original)
+++ llvm/trunk/lib/Target/X86/X86ISelLowering.cpp Mon Aug 12 15:18:23 2019
@@ -39024,7 +39024,8 @@ static SDValue combineTruncateWithSat(SD
return DAG.getNode(X86ISD::VTRUNCUS, DL, VT, USatVal);
}
if (VT.isVector() && isPowerOf2_32(VT.getVectorNumElements()) &&
- !Subtarget.hasAVX512() &&
+ !(Subtarget.hasAVX512() && InSVT == MVT::i32) &&
+ !(Subtarget.hasBWI() && InSVT == MVT::i16) &&
(SVT == MVT::i8 || SVT == MVT::i16) &&
(InSVT == MVT::i16 || InSVT == MVT::i32)) {
if (auto USatVal = detectSSatPattern(In, VT, true)) {
Modified: llvm/trunk/test/CodeGen/X86/avx512-trunc.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/avx512-trunc.ll?rev=368623&r1=368622&r2=368623&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/X86/avx512-trunc.ll (original)
+++ llvm/trunk/test/CodeGen/X86/avx512-trunc.ll Mon Aug 12 15:18:23 2019
@@ -753,11 +753,9 @@ define <16 x i8> @usat_trunc_db_256(<8 x
define void @smax_usat_trunc_wb_256_mem1(<16 x i16> %i, <16 x i8>* %res) {
; KNL-LABEL: smax_usat_trunc_wb_256_mem1:
; KNL: ## %bb.0:
-; KNL-NEXT: vpxor %xmm1, %xmm1, %xmm1
-; KNL-NEXT: vpmaxsw %ymm1, %ymm0, %ymm0
-; KNL-NEXT: vpminsw {{.*}}(%rip), %ymm0, %ymm0
-; KNL-NEXT: vpmovzxwd {{.*#+}} zmm0 = ymm0[0],zero,ymm0[1],zero,ymm0[2],zero,ymm0[3],zero,ymm0[4],zero,ymm0[5],zero,ymm0[6],zero,ymm0[7],zero,ymm0[8],zero,ymm0[9],zero,ymm0[10],zero,ymm0[11],zero,ymm0[12],zero,ymm0[13],zero,ymm0[14],zero,ymm0[15],zero
-; KNL-NEXT: vpmovdb %zmm0, (%rdi)
+; KNL-NEXT: vextracti128 $1, %ymm0, %xmm1
+; KNL-NEXT: vpackuswb %xmm1, %xmm0, %xmm0
+; KNL-NEXT: vmovdqu %xmm0, (%rdi)
; KNL-NEXT: vzeroupper
; KNL-NEXT: retq
;
@@ -781,11 +779,9 @@ define void @smax_usat_trunc_wb_256_mem1
define void @smax_usat_trunc_wb_256_mem2(<16 x i16> %i, <16 x i8>* %res) {
; KNL-LABEL: smax_usat_trunc_wb_256_mem2:
; KNL: ## %bb.0:
-; KNL-NEXT: vpminsw {{.*}}(%rip), %ymm0, %ymm0
-; KNL-NEXT: vpxor %xmm1, %xmm1, %xmm1
-; KNL-NEXT: vpmaxsw %ymm1, %ymm0, %ymm0
-; KNL-NEXT: vpmovzxwd {{.*#+}} zmm0 = ymm0[0],zero,ymm0[1],zero,ymm0[2],zero,ymm0[3],zero,ymm0[4],zero,ymm0[5],zero,ymm0[6],zero,ymm0[7],zero,ymm0[8],zero,ymm0[9],zero,ymm0[10],zero,ymm0[11],zero,ymm0[12],zero,ymm0[13],zero,ymm0[14],zero,ymm0[15],zero
-; KNL-NEXT: vpmovdb %zmm0, (%rdi)
+; KNL-NEXT: vextracti128 $1, %ymm0, %xmm1
+; KNL-NEXT: vpackuswb %xmm1, %xmm0, %xmm0
+; KNL-NEXT: vmovdqu %xmm0, (%rdi)
; KNL-NEXT: vzeroupper
; KNL-NEXT: retq
;
@@ -808,11 +804,8 @@ define void @smax_usat_trunc_wb_256_mem2
define <16 x i8> @smax_usat_trunc_wb_256(<16 x i16> %i) {
; KNL-LABEL: smax_usat_trunc_wb_256:
; KNL: ## %bb.0:
-; KNL-NEXT: vpxor %xmm1, %xmm1, %xmm1
-; KNL-NEXT: vpmaxsw %ymm1, %ymm0, %ymm0
-; KNL-NEXT: vpminsw {{.*}}(%rip), %ymm0, %ymm0
-; KNL-NEXT: vpmovzxwd {{.*#+}} zmm0 = ymm0[0],zero,ymm0[1],zero,ymm0[2],zero,ymm0[3],zero,ymm0[4],zero,ymm0[5],zero,ymm0[6],zero,ymm0[7],zero,ymm0[8],zero,ymm0[9],zero,ymm0[10],zero,ymm0[11],zero,ymm0[12],zero,ymm0[13],zero,ymm0[14],zero,ymm0[15],zero
-; KNL-NEXT: vpmovdb %zmm0, %xmm0
+; KNL-NEXT: vextracti128 $1, %ymm0, %xmm1
+; KNL-NEXT: vpackuswb %xmm1, %xmm0, %xmm0
; KNL-NEXT: vzeroupper
; KNL-NEXT: retq
;
@@ -834,9 +827,6 @@ define <16 x i8> @smax_usat_trunc_wb_256
define void @smax_usat_trunc_wb_128_mem(<8 x i16> %i, <8 x i8>* %res) {
; KNL-LABEL: smax_usat_trunc_wb_128_mem:
; KNL: ## %bb.0:
-; KNL-NEXT: vpxor %xmm1, %xmm1, %xmm1
-; KNL-NEXT: vpmaxsw %xmm1, %xmm0, %xmm0
-; KNL-NEXT: vpminsw {{.*}}(%rip), %xmm0, %xmm0
; KNL-NEXT: vpackuswb %xmm0, %xmm0, %xmm0
; KNL-NEXT: vmovq %xmm0, (%rdi)
; KNL-NEXT: retq
Modified: llvm/trunk/test/CodeGen/X86/masked_store_trunc_ssat.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/masked_store_trunc_ssat.ll?rev=368623&r1=368622&r2=368623&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/X86/masked_store_trunc_ssat.ll (original)
+++ llvm/trunk/test/CodeGen/X86/masked_store_trunc_ssat.ll Mon Aug 12 15:18:23 2019
@@ -6452,17 +6452,8 @@ define void @truncstore_v32i16_v32i8(<32
; AVX512F: # %bb.0:
; AVX512F-NEXT: vpxor %xmm3, %xmm3, %xmm3
; AVX512F-NEXT: vpcmpeqb %ymm3, %ymm2, %ymm2
-; AVX512F-NEXT: vmovdqa {{.*#+}} ymm3 = [127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127]
-; AVX512F-NEXT: vpminsw %ymm3, %ymm0, %ymm0
-; AVX512F-NEXT: vpminsw %ymm3, %ymm1, %ymm1
-; AVX512F-NEXT: vmovdqa {{.*#+}} ymm3 = [65408,65408,65408,65408,65408,65408,65408,65408,65408,65408,65408,65408,65408,65408,65408,65408]
-; AVX512F-NEXT: vpmaxsw %ymm3, %ymm1, %ymm1
-; AVX512F-NEXT: vpmaxsw %ymm3, %ymm0, %ymm0
-; AVX512F-NEXT: vpmovzxwd {{.*#+}} zmm0 = ymm0[0],zero,ymm0[1],zero,ymm0[2],zero,ymm0[3],zero,ymm0[4],zero,ymm0[5],zero,ymm0[6],zero,ymm0[7],zero,ymm0[8],zero,ymm0[9],zero,ymm0[10],zero,ymm0[11],zero,ymm0[12],zero,ymm0[13],zero,ymm0[14],zero,ymm0[15],zero
-; AVX512F-NEXT: vpmovdb %zmm0, %xmm0
-; AVX512F-NEXT: vpmovzxwd {{.*#+}} zmm1 = ymm1[0],zero,ymm1[1],zero,ymm1[2],zero,ymm1[3],zero,ymm1[4],zero,ymm1[5],zero,ymm1[6],zero,ymm1[7],zero,ymm1[8],zero,ymm1[9],zero,ymm1[10],zero,ymm1[11],zero,ymm1[12],zero,ymm1[13],zero,ymm1[14],zero,ymm1[15],zero
-; AVX512F-NEXT: vpmovdb %zmm1, %xmm1
-; AVX512F-NEXT: vinserti128 $1, %xmm1, %ymm0, %ymm0
+; AVX512F-NEXT: vpacksswb %ymm1, %ymm0, %ymm0
+; AVX512F-NEXT: vpermq {{.*#+}} ymm0 = ymm0[0,2,1,3]
; AVX512F-NEXT: vpmovmskb %ymm2, %eax
; AVX512F-NEXT: notl %eax
; AVX512F-NEXT: testb $1, %al
@@ -7200,10 +7191,8 @@ define void @truncstore_v16i16_v16i8(<16
; AVX512F: # %bb.0:
; AVX512F-NEXT: vpxor %xmm2, %xmm2, %xmm2
; AVX512F-NEXT: vpcmpeqb %xmm2, %xmm1, %xmm1
-; AVX512F-NEXT: vpminsw {{.*}}(%rip), %ymm0, %ymm0
-; AVX512F-NEXT: vpmaxsw {{.*}}(%rip), %ymm0, %ymm0
-; AVX512F-NEXT: vpmovzxwd {{.*#+}} zmm0 = ymm0[0],zero,ymm0[1],zero,ymm0[2],zero,ymm0[3],zero,ymm0[4],zero,ymm0[5],zero,ymm0[6],zero,ymm0[7],zero,ymm0[8],zero,ymm0[9],zero,ymm0[10],zero,ymm0[11],zero,ymm0[12],zero,ymm0[13],zero,ymm0[14],zero,ymm0[15],zero
-; AVX512F-NEXT: vpmovdb %zmm0, %xmm0
+; AVX512F-NEXT: vextracti128 $1, %ymm0, %xmm2
+; AVX512F-NEXT: vpacksswb %xmm2, %xmm0, %xmm0
; AVX512F-NEXT: vpmovmskb %xmm1, %eax
; AVX512F-NEXT: xorl $65535, %eax # imm = 0xFFFF
; AVX512F-NEXT: testb $1, %al
@@ -7558,8 +7547,6 @@ define void @truncstore_v8i16_v8i8(<8 x
; AVX512F-NEXT: vpternlogq $15, %zmm1, %zmm1, %zmm1
; AVX512F-NEXT: vpmovsxwq %xmm1, %zmm1
; AVX512F-NEXT: vptestmq %zmm1, %zmm1, %k0
-; AVX512F-NEXT: vpminsw {{.*}}(%rip), %xmm0, %xmm0
-; AVX512F-NEXT: vpmaxsw {{.*}}(%rip), %xmm0, %xmm0
; AVX512F-NEXT: vpacksswb %xmm0, %xmm0, %xmm0
; AVX512F-NEXT: kmovw %k0, %eax
; AVX512F-NEXT: testb $1, %al
Modified: llvm/trunk/test/CodeGen/X86/vector-trunc-packus.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/vector-trunc-packus.ll?rev=368623&r1=368622&r2=368623&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/X86/vector-trunc-packus.ll (original)
+++ llvm/trunk/test/CodeGen/X86/vector-trunc-packus.ll Mon Aug 12 15:18:23 2019
@@ -2961,21 +2961,15 @@ define <16 x i8> @trunc_packus_v16i16_v1
;
; AVX512F-LABEL: trunc_packus_v16i16_v16i8:
; AVX512F: # %bb.0:
-; AVX512F-NEXT: vpminsw {{.*}}(%rip), %ymm0, %ymm0
-; AVX512F-NEXT: vpxor %xmm1, %xmm1, %xmm1
-; AVX512F-NEXT: vpmaxsw %ymm1, %ymm0, %ymm0
-; AVX512F-NEXT: vpmovzxwd {{.*#+}} zmm0 = ymm0[0],zero,ymm0[1],zero,ymm0[2],zero,ymm0[3],zero,ymm0[4],zero,ymm0[5],zero,ymm0[6],zero,ymm0[7],zero,ymm0[8],zero,ymm0[9],zero,ymm0[10],zero,ymm0[11],zero,ymm0[12],zero,ymm0[13],zero,ymm0[14],zero,ymm0[15],zero
-; AVX512F-NEXT: vpmovdb %zmm0, %xmm0
+; AVX512F-NEXT: vextracti128 $1, %ymm0, %xmm1
+; AVX512F-NEXT: vpackuswb %xmm1, %xmm0, %xmm0
; AVX512F-NEXT: vzeroupper
; AVX512F-NEXT: retq
;
; AVX512VL-LABEL: trunc_packus_v16i16_v16i8:
; AVX512VL: # %bb.0:
-; AVX512VL-NEXT: vpminsw {{.*}}(%rip), %ymm0, %ymm0
-; AVX512VL-NEXT: vpxor %xmm1, %xmm1, %xmm1
-; AVX512VL-NEXT: vpmaxsw %ymm1, %ymm0, %ymm0
-; AVX512VL-NEXT: vpmovzxwd {{.*#+}} zmm0 = ymm0[0],zero,ymm0[1],zero,ymm0[2],zero,ymm0[3],zero,ymm0[4],zero,ymm0[5],zero,ymm0[6],zero,ymm0[7],zero,ymm0[8],zero,ymm0[9],zero,ymm0[10],zero,ymm0[11],zero,ymm0[12],zero,ymm0[13],zero,ymm0[14],zero,ymm0[15],zero
-; AVX512VL-NEXT: vpmovdb %zmm0, %xmm0
+; AVX512VL-NEXT: vextracti128 $1, %ymm0, %xmm1
+; AVX512VL-NEXT: vpackuswb %xmm1, %xmm0, %xmm0
; AVX512VL-NEXT: vzeroupper
; AVX512VL-NEXT: retq
;
@@ -3029,32 +3023,14 @@ define <32 x i8> @trunc_packus_v32i16_v3
;
; AVX512F-LABEL: trunc_packus_v32i16_v32i8:
; AVX512F: # %bb.0:
-; AVX512F-NEXT: vmovdqa {{.*#+}} ymm2 = [255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255]
-; AVX512F-NEXT: vpminsw %ymm2, %ymm0, %ymm0
-; AVX512F-NEXT: vpminsw %ymm2, %ymm1, %ymm1
-; AVX512F-NEXT: vpxor %xmm2, %xmm2, %xmm2
-; AVX512F-NEXT: vpmaxsw %ymm2, %ymm1, %ymm1
-; AVX512F-NEXT: vpmaxsw %ymm2, %ymm0, %ymm0
-; AVX512F-NEXT: vpmovzxwd {{.*#+}} zmm0 = ymm0[0],zero,ymm0[1],zero,ymm0[2],zero,ymm0[3],zero,ymm0[4],zero,ymm0[5],zero,ymm0[6],zero,ymm0[7],zero,ymm0[8],zero,ymm0[9],zero,ymm0[10],zero,ymm0[11],zero,ymm0[12],zero,ymm0[13],zero,ymm0[14],zero,ymm0[15],zero
-; AVX512F-NEXT: vpmovdb %zmm0, %xmm0
-; AVX512F-NEXT: vpmovzxwd {{.*#+}} zmm1 = ymm1[0],zero,ymm1[1],zero,ymm1[2],zero,ymm1[3],zero,ymm1[4],zero,ymm1[5],zero,ymm1[6],zero,ymm1[7],zero,ymm1[8],zero,ymm1[9],zero,ymm1[10],zero,ymm1[11],zero,ymm1[12],zero,ymm1[13],zero,ymm1[14],zero,ymm1[15],zero
-; AVX512F-NEXT: vpmovdb %zmm1, %xmm1
-; AVX512F-NEXT: vinserti128 $1, %xmm1, %ymm0, %ymm0
+; AVX512F-NEXT: vpackuswb %ymm1, %ymm0, %ymm0
+; AVX512F-NEXT: vpermq {{.*#+}} ymm0 = ymm0[0,2,1,3]
; AVX512F-NEXT: retq
;
; AVX512VL-LABEL: trunc_packus_v32i16_v32i8:
; AVX512VL: # %bb.0:
-; AVX512VL-NEXT: vmovdqa {{.*#+}} ymm2 = [255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255]
-; AVX512VL-NEXT: vpminsw %ymm2, %ymm0, %ymm0
-; AVX512VL-NEXT: vpminsw %ymm2, %ymm1, %ymm1
-; AVX512VL-NEXT: vpxor %xmm2, %xmm2, %xmm2
-; AVX512VL-NEXT: vpmaxsw %ymm2, %ymm1, %ymm1
-; AVX512VL-NEXT: vpmaxsw %ymm2, %ymm0, %ymm0
-; AVX512VL-NEXT: vpmovzxwd {{.*#+}} zmm0 = ymm0[0],zero,ymm0[1],zero,ymm0[2],zero,ymm0[3],zero,ymm0[4],zero,ymm0[5],zero,ymm0[6],zero,ymm0[7],zero,ymm0[8],zero,ymm0[9],zero,ymm0[10],zero,ymm0[11],zero,ymm0[12],zero,ymm0[13],zero,ymm0[14],zero,ymm0[15],zero
-; AVX512VL-NEXT: vpmovdb %zmm0, %xmm0
-; AVX512VL-NEXT: vpmovzxwd {{.*#+}} zmm1 = ymm1[0],zero,ymm1[1],zero,ymm1[2],zero,ymm1[3],zero,ymm1[4],zero,ymm1[5],zero,ymm1[6],zero,ymm1[7],zero,ymm1[8],zero,ymm1[9],zero,ymm1[10],zero,ymm1[11],zero,ymm1[12],zero,ymm1[13],zero,ymm1[14],zero,ymm1[15],zero
-; AVX512VL-NEXT: vpmovdb %zmm1, %xmm1
-; AVX512VL-NEXT: vinserti128 $1, %xmm1, %ymm0, %ymm0
+; AVX512VL-NEXT: vpackuswb %ymm1, %ymm0, %ymm0
+; AVX512VL-NEXT: vpermq {{.*#+}} ymm0 = ymm0[0,2,1,3]
; AVX512VL-NEXT: retq
;
; AVX512BW-LABEL: trunc_packus_v32i16_v32i8:
Modified: llvm/trunk/test/CodeGen/X86/vector-trunc-ssat.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/vector-trunc-ssat.ll?rev=368623&r1=368622&r2=368623&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/X86/vector-trunc-ssat.ll (original)
+++ llvm/trunk/test/CodeGen/X86/vector-trunc-ssat.ll Mon Aug 12 15:18:23 2019
@@ -2941,19 +2941,15 @@ define <16 x i8> @trunc_ssat_v16i16_v16i
;
; AVX512F-LABEL: trunc_ssat_v16i16_v16i8:
; AVX512F: # %bb.0:
-; AVX512F-NEXT: vpminsw {{.*}}(%rip), %ymm0, %ymm0
-; AVX512F-NEXT: vpmaxsw {{.*}}(%rip), %ymm0, %ymm0
-; AVX512F-NEXT: vpmovzxwd {{.*#+}} zmm0 = ymm0[0],zero,ymm0[1],zero,ymm0[2],zero,ymm0[3],zero,ymm0[4],zero,ymm0[5],zero,ymm0[6],zero,ymm0[7],zero,ymm0[8],zero,ymm0[9],zero,ymm0[10],zero,ymm0[11],zero,ymm0[12],zero,ymm0[13],zero,ymm0[14],zero,ymm0[15],zero
-; AVX512F-NEXT: vpmovdb %zmm0, %xmm0
+; AVX512F-NEXT: vextracti128 $1, %ymm0, %xmm1
+; AVX512F-NEXT: vpacksswb %xmm1, %xmm0, %xmm0
; AVX512F-NEXT: vzeroupper
; AVX512F-NEXT: retq
;
; AVX512VL-LABEL: trunc_ssat_v16i16_v16i8:
; AVX512VL: # %bb.0:
-; AVX512VL-NEXT: vpminsw {{.*}}(%rip), %ymm0, %ymm0
-; AVX512VL-NEXT: vpmaxsw {{.*}}(%rip), %ymm0, %ymm0
-; AVX512VL-NEXT: vpmovzxwd {{.*#+}} zmm0 = ymm0[0],zero,ymm0[1],zero,ymm0[2],zero,ymm0[3],zero,ymm0[4],zero,ymm0[5],zero,ymm0[6],zero,ymm0[7],zero,ymm0[8],zero,ymm0[9],zero,ymm0[10],zero,ymm0[11],zero,ymm0[12],zero,ymm0[13],zero,ymm0[14],zero,ymm0[15],zero
-; AVX512VL-NEXT: vpmovdb %zmm0, %xmm0
+; AVX512VL-NEXT: vextracti128 $1, %ymm0, %xmm1
+; AVX512VL-NEXT: vpacksswb %xmm1, %xmm0, %xmm0
; AVX512VL-NEXT: vzeroupper
; AVX512VL-NEXT: retq
;
@@ -3004,32 +3000,14 @@ define <32 x i8> @trunc_ssat_v32i16_v32i
;
; AVX512F-LABEL: trunc_ssat_v32i16_v32i8:
; AVX512F: # %bb.0:
-; AVX512F-NEXT: vmovdqa {{.*#+}} ymm2 = [127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127]
-; AVX512F-NEXT: vpminsw %ymm2, %ymm0, %ymm0
-; AVX512F-NEXT: vpminsw %ymm2, %ymm1, %ymm1
-; AVX512F-NEXT: vmovdqa {{.*#+}} ymm2 = [65408,65408,65408,65408,65408,65408,65408,65408,65408,65408,65408,65408,65408,65408,65408,65408]
-; AVX512F-NEXT: vpmaxsw %ymm2, %ymm1, %ymm1
-; AVX512F-NEXT: vpmaxsw %ymm2, %ymm0, %ymm0
-; AVX512F-NEXT: vpmovzxwd {{.*#+}} zmm0 = ymm0[0],zero,ymm0[1],zero,ymm0[2],zero,ymm0[3],zero,ymm0[4],zero,ymm0[5],zero,ymm0[6],zero,ymm0[7],zero,ymm0[8],zero,ymm0[9],zero,ymm0[10],zero,ymm0[11],zero,ymm0[12],zero,ymm0[13],zero,ymm0[14],zero,ymm0[15],zero
-; AVX512F-NEXT: vpmovdb %zmm0, %xmm0
-; AVX512F-NEXT: vpmovzxwd {{.*#+}} zmm1 = ymm1[0],zero,ymm1[1],zero,ymm1[2],zero,ymm1[3],zero,ymm1[4],zero,ymm1[5],zero,ymm1[6],zero,ymm1[7],zero,ymm1[8],zero,ymm1[9],zero,ymm1[10],zero,ymm1[11],zero,ymm1[12],zero,ymm1[13],zero,ymm1[14],zero,ymm1[15],zero
-; AVX512F-NEXT: vpmovdb %zmm1, %xmm1
-; AVX512F-NEXT: vinserti128 $1, %xmm1, %ymm0, %ymm0
+; AVX512F-NEXT: vpacksswb %ymm1, %ymm0, %ymm0
+; AVX512F-NEXT: vpermq {{.*#+}} ymm0 = ymm0[0,2,1,3]
; AVX512F-NEXT: retq
;
; AVX512VL-LABEL: trunc_ssat_v32i16_v32i8:
; AVX512VL: # %bb.0:
-; AVX512VL-NEXT: vmovdqa {{.*#+}} ymm2 = [127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127]
-; AVX512VL-NEXT: vpminsw %ymm2, %ymm0, %ymm0
-; AVX512VL-NEXT: vpminsw %ymm2, %ymm1, %ymm1
-; AVX512VL-NEXT: vmovdqa {{.*#+}} ymm2 = [65408,65408,65408,65408,65408,65408,65408,65408,65408,65408,65408,65408,65408,65408,65408,65408]
-; AVX512VL-NEXT: vpmaxsw %ymm2, %ymm1, %ymm1
-; AVX512VL-NEXT: vpmaxsw %ymm2, %ymm0, %ymm0
-; AVX512VL-NEXT: vpmovzxwd {{.*#+}} zmm0 = ymm0[0],zero,ymm0[1],zero,ymm0[2],zero,ymm0[3],zero,ymm0[4],zero,ymm0[5],zero,ymm0[6],zero,ymm0[7],zero,ymm0[8],zero,ymm0[9],zero,ymm0[10],zero,ymm0[11],zero,ymm0[12],zero,ymm0[13],zero,ymm0[14],zero,ymm0[15],zero
-; AVX512VL-NEXT: vpmovdb %zmm0, %xmm0
-; AVX512VL-NEXT: vpmovzxwd {{.*#+}} zmm1 = ymm1[0],zero,ymm1[1],zero,ymm1[2],zero,ymm1[3],zero,ymm1[4],zero,ymm1[5],zero,ymm1[6],zero,ymm1[7],zero,ymm1[8],zero,ymm1[9],zero,ymm1[10],zero,ymm1[11],zero,ymm1[12],zero,ymm1[13],zero,ymm1[14],zero,ymm1[15],zero
-; AVX512VL-NEXT: vpmovdb %zmm1, %xmm1
-; AVX512VL-NEXT: vinserti128 $1, %xmm1, %ymm0, %ymm0
+; AVX512VL-NEXT: vpacksswb %ymm1, %ymm0, %ymm0
+; AVX512VL-NEXT: vpermq {{.*#+}} ymm0 = ymm0[0,2,1,3]
; AVX512VL-NEXT: retq
;
; AVX512BW-LABEL: trunc_ssat_v32i16_v32i8:
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