prefer-avx256-lzcnt.ll
6.84 KB
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx512vl,+avx512cd,+prefer-256-bit | FileCheck %s --check-prefix=CHECK --check-prefix=AVX256
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx512vl,+avx512cd,-prefer-256-bit | FileCheck %s --check-prefix=CHECK --check-prefix=AVX512 --check-prefix=AVX512VL
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx512f,+avx512cd,+prefer-256-bit | FileCheck %s --check-prefix=CHECK --check-prefix=AVX512 --check-prefix=AVX512F
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx512f,+avx512cd,-prefer-256-bit | FileCheck %s --check-prefix=CHECK --check-prefix=AVX512 --check-prefix=AVX512F
define <8 x i16> @testv8i16(<8 x i16> %in) {
; AVX256-LABEL: testv8i16:
; AVX256: # %bb.0:
; AVX256-NEXT: vpmovzxwd {{.*#+}} ymm0 = xmm0[0],zero,xmm0[1],zero,xmm0[2],zero,xmm0[3],zero,xmm0[4],zero,xmm0[5],zero,xmm0[6],zero,xmm0[7],zero
; AVX256-NEXT: vplzcntd %ymm0, %ymm0
; AVX256-NEXT: vpmovdw %ymm0, %xmm0
; AVX256-NEXT: vpsubw {{.*}}(%rip), %xmm0, %xmm0
; AVX256-NEXT: vzeroupper
; AVX256-NEXT: retq
;
; AVX512VL-LABEL: testv8i16:
; AVX512VL: # %bb.0:
; AVX512VL-NEXT: vpmovzxwd {{.*#+}} ymm0 = xmm0[0],zero,xmm0[1],zero,xmm0[2],zero,xmm0[3],zero,xmm0[4],zero,xmm0[5],zero,xmm0[6],zero,xmm0[7],zero
; AVX512VL-NEXT: vplzcntd %ymm0, %ymm0
; AVX512VL-NEXT: vpmovdw %ymm0, %xmm0
; AVX512VL-NEXT: vpsubw {{.*}}(%rip), %xmm0, %xmm0
; AVX512VL-NEXT: vzeroupper
; AVX512VL-NEXT: retq
;
; AVX512F-LABEL: testv8i16:
; AVX512F: # %bb.0:
; AVX512F-NEXT: vpmovzxwd {{.*#+}} ymm0 = xmm0[0],zero,xmm0[1],zero,xmm0[2],zero,xmm0[3],zero,xmm0[4],zero,xmm0[5],zero,xmm0[6],zero,xmm0[7],zero
; AVX512F-NEXT: vplzcntd %zmm0, %zmm0
; AVX512F-NEXT: vpmovdw %zmm0, %ymm0
; AVX512F-NEXT: vpsubw {{.*}}(%rip), %xmm0, %xmm0
; AVX512F-NEXT: vzeroupper
; AVX512F-NEXT: retq
%out = call <8 x i16> @llvm.ctlz.v8i16(<8 x i16> %in, i1 false)
ret <8 x i16> %out
}
define <16 x i8> @testv16i8(<16 x i8> %in) {
; AVX256-LABEL: testv16i8:
; AVX256: # %bb.0:
; AVX256-NEXT: vmovdqa {{.*#+}} xmm1 = [4,3,2,2,1,1,1,1,0,0,0,0,0,0,0,0]
; AVX256-NEXT: vpshufb %xmm0, %xmm1, %xmm2
; AVX256-NEXT: vpsrlw $4, %xmm0, %xmm0
; AVX256-NEXT: vpand {{.*}}(%rip), %xmm0, %xmm0
; AVX256-NEXT: vpxor %xmm3, %xmm3, %xmm3
; AVX256-NEXT: vpcmpeqb %xmm3, %xmm0, %xmm3
; AVX256-NEXT: vpand %xmm3, %xmm2, %xmm2
; AVX256-NEXT: vpshufb %xmm0, %xmm1, %xmm0
; AVX256-NEXT: vpaddb %xmm0, %xmm2, %xmm0
; AVX256-NEXT: retq
;
; AVX512-LABEL: testv16i8:
; AVX512: # %bb.0:
; AVX512-NEXT: vpmovzxbd {{.*#+}} zmm0 = xmm0[0],zero,zero,zero,xmm0[1],zero,zero,zero,xmm0[2],zero,zero,zero,xmm0[3],zero,zero,zero,xmm0[4],zero,zero,zero,xmm0[5],zero,zero,zero,xmm0[6],zero,zero,zero,xmm0[7],zero,zero,zero,xmm0[8],zero,zero,zero,xmm0[9],zero,zero,zero,xmm0[10],zero,zero,zero,xmm0[11],zero,zero,zero,xmm0[12],zero,zero,zero,xmm0[13],zero,zero,zero,xmm0[14],zero,zero,zero,xmm0[15],zero,zero,zero
; AVX512-NEXT: vplzcntd %zmm0, %zmm0
; AVX512-NEXT: vpmovdb %zmm0, %xmm0
; AVX512-NEXT: vpsubb {{.*}}(%rip), %xmm0, %xmm0
; AVX512-NEXT: vzeroupper
; AVX512-NEXT: retq
%out = call <16 x i8> @llvm.ctlz.v16i8(<16 x i8> %in, i1 false)
ret <16 x i8> %out
}
define <16 x i16> @testv16i16(<16 x i16> %in) {
; AVX256-LABEL: testv16i16:
; AVX256: # %bb.0:
; AVX256-NEXT: vextracti128 $1, %ymm0, %xmm1
; AVX256-NEXT: vpmovzxwd {{.*#+}} ymm1 = xmm1[0],zero,xmm1[1],zero,xmm1[2],zero,xmm1[3],zero,xmm1[4],zero,xmm1[5],zero,xmm1[6],zero,xmm1[7],zero
; AVX256-NEXT: vplzcntd %ymm1, %ymm1
; AVX256-NEXT: vpmovdw %ymm1, %xmm1
; AVX256-NEXT: vmovdqa {{.*#+}} xmm2 = [16,16,16,16,16,16,16,16]
; AVX256-NEXT: vpsubw %xmm2, %xmm1, %xmm1
; AVX256-NEXT: vpmovzxwd {{.*#+}} ymm0 = xmm0[0],zero,xmm0[1],zero,xmm0[2],zero,xmm0[3],zero,xmm0[4],zero,xmm0[5],zero,xmm0[6],zero,xmm0[7],zero
; AVX256-NEXT: vplzcntd %ymm0, %ymm0
; AVX256-NEXT: vpmovdw %ymm0, %xmm0
; AVX256-NEXT: vpsubw %xmm2, %xmm0, %xmm0
; AVX256-NEXT: vinserti128 $1, %xmm1, %ymm0, %ymm0
; AVX256-NEXT: retq
;
; AVX512-LABEL: testv16i16:
; AVX512: # %bb.0:
; AVX512-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
; AVX512-NEXT: vplzcntd %zmm0, %zmm0
; AVX512-NEXT: vpmovdw %zmm0, %ymm0
; AVX512-NEXT: vpsubw {{.*}}(%rip), %ymm0, %ymm0
; AVX512-NEXT: retq
%out = call <16 x i16> @llvm.ctlz.v16i16(<16 x i16> %in, i1 false)
ret <16 x i16> %out
}
define <32 x i8> @testv32i8(<32 x i8> %in) {
; AVX256-LABEL: testv32i8:
; AVX256: # %bb.0:
; AVX256-NEXT: vmovdqa {{.*#+}} ymm1 = [4,3,2,2,1,1,1,1,0,0,0,0,0,0,0,0,4,3,2,2,1,1,1,1,0,0,0,0,0,0,0,0]
; AVX256-NEXT: vpshufb %ymm0, %ymm1, %ymm2
; AVX256-NEXT: vpsrlw $4, %ymm0, %ymm0
; AVX256-NEXT: vpand {{.*}}(%rip), %ymm0, %ymm0
; AVX256-NEXT: vpxor %xmm3, %xmm3, %xmm3
; AVX256-NEXT: vpcmpeqb %ymm3, %ymm0, %ymm3
; AVX256-NEXT: vpand %ymm3, %ymm2, %ymm2
; AVX256-NEXT: vpshufb %ymm0, %ymm1, %ymm0
; AVX256-NEXT: vpaddb %ymm0, %ymm2, %ymm0
; AVX256-NEXT: retq
;
; AVX512-LABEL: testv32i8:
; AVX512: # %bb.0:
; AVX512-NEXT: vextracti128 $1, %ymm0, %xmm1
; AVX512-NEXT: vpmovzxbd {{.*#+}} zmm1 = xmm1[0],zero,zero,zero,xmm1[1],zero,zero,zero,xmm1[2],zero,zero,zero,xmm1[3],zero,zero,zero,xmm1[4],zero,zero,zero,xmm1[5],zero,zero,zero,xmm1[6],zero,zero,zero,xmm1[7],zero,zero,zero,xmm1[8],zero,zero,zero,xmm1[9],zero,zero,zero,xmm1[10],zero,zero,zero,xmm1[11],zero,zero,zero,xmm1[12],zero,zero,zero,xmm1[13],zero,zero,zero,xmm1[14],zero,zero,zero,xmm1[15],zero,zero,zero
; AVX512-NEXT: vplzcntd %zmm1, %zmm1
; AVX512-NEXT: vpmovdb %zmm1, %xmm1
; AVX512-NEXT: vmovdqa {{.*#+}} xmm2 = [24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24]
; AVX512-NEXT: vpsubb %xmm2, %xmm1, %xmm1
; AVX512-NEXT: vpmovzxbd {{.*#+}} zmm0 = xmm0[0],zero,zero,zero,xmm0[1],zero,zero,zero,xmm0[2],zero,zero,zero,xmm0[3],zero,zero,zero,xmm0[4],zero,zero,zero,xmm0[5],zero,zero,zero,xmm0[6],zero,zero,zero,xmm0[7],zero,zero,zero,xmm0[8],zero,zero,zero,xmm0[9],zero,zero,zero,xmm0[10],zero,zero,zero,xmm0[11],zero,zero,zero,xmm0[12],zero,zero,zero,xmm0[13],zero,zero,zero,xmm0[14],zero,zero,zero,xmm0[15],zero,zero,zero
; AVX512-NEXT: vplzcntd %zmm0, %zmm0
; AVX512-NEXT: vpmovdb %zmm0, %xmm0
; AVX512-NEXT: vpsubb %xmm2, %xmm0, %xmm0
; AVX512-NEXT: vinserti128 $1, %xmm1, %ymm0, %ymm0
; AVX512-NEXT: retq
%out = call <32 x i8> @llvm.ctlz.v32i8(<32 x i8> %in, i1 false)
ret <32 x i8> %out
}
declare <8 x i16> @llvm.ctlz.v8i16(<8 x i16>, i1)
declare <16 x i8> @llvm.ctlz.v16i8(<16 x i8>, i1)
declare <16 x i16> @llvm.ctlz.v16i16(<16 x i16>, i1)
declare <32 x i8> @llvm.ctlz.v32i8(<32 x i8>, i1)