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llvm-6502/test/CodeGen/X86/vector-popcnt-128.ll
Chandler Carruth fa68750e54 [x86] Unify the horizontal adding used for popcount lowering taking the 
best approach of each.

For vNi16, we use SHL + ADD + SRL pattern that seem easily the best.

For vNi32, we use the PUNPCK + PSADBW + PACKUSWB pattern. In some cases
there is a huge improvement with this in IACA's estimated throughput --
over 2x higher throughput!!!! -- but the measurements are too good to be
true. In one narrow case, the SHL + ADD + SHL + ADD + SRL pattern looks
slightly faster, but I'm not sure I believe any of the measurements at
this point. Both are the exact same uops though. Hard to be confident of
anything past that.

If anyone wants to collect very detailed (Agner-level) timings with the
result of this patch, or with the i32 case replaced with SHL + ADD + SHl
+ ADD + SRL, I'd be very interested. Note that you'll need to test it on
both Ivybridge and Haswell, with both SSE3, SSSE3, and AVX selected as
I saw unique behavior in each of these buckets with IACA all of which
should be checked against measured performance.

But this patch is still a useful improvement by dropping duplicate work
and getting the much nicer PSADBW lowering for v2i64.

I'd still like to rephrase this in terms of generic horizontal sum. It's
a bit lame to have a special case of that just for popcount.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@238652 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-30 10:35:03 +00:00

407 lines
15 KiB
LLVM
Raw Blame History

; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mcpu=x86-64 | FileCheck %s --check-prefix=ALL --check-prefix=SSE --check-prefix=SSE2
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mcpu=x86-64 -mattr=+sse3 | FileCheck %s --check-prefix=ALL --check-prefix=SSE --check-prefix=SSE3
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mcpu=x86-64 -mattr=+ssse3 | FileCheck %s --check-prefix=ALL --check-prefix=SSE --check-prefix=SSSE3
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mcpu=x86-64 -mattr=+sse4.1 | FileCheck %s --check-prefix=ALL --check-prefix=SSE --check-prefix=SSE41
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mcpu=x86-64 -mattr=+avx | FileCheck %s --check-prefix=ALL --check-prefix=AVX --check-prefix=AVX1
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mcpu=x86-64 -mattr=+avx2 | FileCheck %s --check-prefix=ALL --check-prefix=AVX --check-prefix=AVX2
target triple = "x86_64-unknown-unknown"
define <2 x i64> @testv2i64(<2 x i64> %in) {
; SSE2-LABEL: testv2i64:
; SSE2: # BB#0:
; SSE2-NEXT: movdqa %xmm0, %xmm1
; SSE2-NEXT: psrlq $1, %xmm1
; SSE2-NEXT: pand {{.*}}(%rip), %xmm1
; SSE2-NEXT: psubq %xmm1, %xmm0
; SSE2-NEXT: movdqa {{.*#+}} xmm1 = [3689348814741910323,3689348814741910323]
; SSE2-NEXT: movdqa %xmm0, %xmm2
; SSE2-NEXT: pand %xmm1, %xmm2
; SSE2-NEXT: psrlq $2, %xmm0
; SSE2-NEXT: pand %xmm1, %xmm0
; SSE2-NEXT: paddq %xmm2, %xmm0
; SSE2-NEXT: movdqa %xmm0, %xmm1
; SSE2-NEXT: psrlq $4, %xmm1
; SSE2-NEXT: paddq %xmm0, %xmm1
; SSE2-NEXT: pand {{.*}}(%rip), %xmm1
; SSE2-NEXT: pxor %xmm0, %xmm0
; SSE2-NEXT: psadbw %xmm0, %xmm1
; SSE2-NEXT: movdqa %xmm1, %xmm0
; SSE2-NEXT: retq
;
; SSE3-LABEL: testv2i64:
; SSE3: # BB#0:
; SSE3-NEXT: movdqa %xmm0, %xmm1
; SSE3-NEXT: psrlq $1, %xmm1
; SSE3-NEXT: pand {{.*}}(%rip), %xmm1
; SSE3-NEXT: psubq %xmm1, %xmm0
; SSE3-NEXT: movdqa {{.*#+}} xmm1 = [3689348814741910323,3689348814741910323]
; SSE3-NEXT: movdqa %xmm0, %xmm2
; SSE3-NEXT: pand %xmm1, %xmm2
; SSE3-NEXT: psrlq $2, %xmm0
; SSE3-NEXT: pand %xmm1, %xmm0
; SSE3-NEXT: paddq %xmm2, %xmm0
; SSE3-NEXT: movdqa %xmm0, %xmm1
; SSE3-NEXT: psrlq $4, %xmm1
; SSE3-NEXT: paddq %xmm0, %xmm1
; SSE3-NEXT: pand {{.*}}(%rip), %xmm1
; SSE3-NEXT: pxor %xmm0, %xmm0
; SSE3-NEXT: psadbw %xmm0, %xmm1
; SSE3-NEXT: movdqa %xmm1, %xmm0
; SSE3-NEXT: retq
;
; SSSE3-LABEL: testv2i64:
; SSSE3: # BB#0:
; SSSE3-NEXT: movdqa {{.*#+}} xmm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
; SSSE3-NEXT: movdqa %xmm0, %xmm2
; SSSE3-NEXT: pand %xmm1, %xmm2
; SSSE3-NEXT: movdqa {{.*#+}} xmm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
; SSSE3-NEXT: movdqa %xmm3, %xmm4
; SSSE3-NEXT: pshufb %xmm2, %xmm4
; SSSE3-NEXT: psrlw $4, %xmm0
; SSSE3-NEXT: pand %xmm1, %xmm0
; SSSE3-NEXT: pshufb %xmm0, %xmm3
; SSSE3-NEXT: paddb %xmm4, %xmm3
; SSSE3-NEXT: pxor %xmm0, %xmm0
; SSSE3-NEXT: psadbw %xmm3, %xmm0
; SSSE3-NEXT: retq
;
; SSE41-LABEL: testv2i64:
; SSE41: # BB#0:
; SSE41-NEXT: movdqa {{.*#+}} xmm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
; SSE41-NEXT: movdqa %xmm0, %xmm2
; SSE41-NEXT: pand %xmm1, %xmm2
; SSE41-NEXT: movdqa {{.*#+}} xmm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
; SSE41-NEXT: movdqa %xmm3, %xmm4
; SSE41-NEXT: pshufb %xmm2, %xmm4
; SSE41-NEXT: psrlw $4, %xmm0
; SSE41-NEXT: pand %xmm1, %xmm0
; SSE41-NEXT: pshufb %xmm0, %xmm3
; SSE41-NEXT: paddb %xmm4, %xmm3
; SSE41-NEXT: pxor %xmm0, %xmm0
; SSE41-NEXT: psadbw %xmm3, %xmm0
; SSE41-NEXT: retq
;
; AVX-LABEL: testv2i64:
; AVX: # BB#0:
; AVX-NEXT: vmovdqa {{.*#+}} xmm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
; AVX-NEXT: vpand %xmm1, %xmm0, %xmm2
; AVX-NEXT: vmovdqa {{.*#+}} xmm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
; AVX-NEXT: vpshufb %xmm2, %xmm3, %xmm2
; AVX-NEXT: vpsrlw $4, %xmm0, %xmm0
; AVX-NEXT: vpand %xmm1, %xmm0, %xmm0
; AVX-NEXT: vpshufb %xmm0, %xmm3, %xmm0
; AVX-NEXT: vpaddb %xmm2, %xmm0, %xmm0
; AVX-NEXT: vpxor %xmm1, %xmm1, %xmm1
; AVX-NEXT: vpsadbw %xmm0, %xmm1, %xmm0
; AVX-NEXT: retq
%out = call <2 x i64> @llvm.ctpop.v2i64(<2 x i64> %in)
ret <2 x i64> %out
}
define <4 x i32> @testv4i32(<4 x i32> %in) {
; SSE2-LABEL: testv4i32:
; SSE2: # BB#0:
; SSE2-NEXT: movdqa %xmm0, %xmm1
; SSE2-NEXT: psrld $1, %xmm1
; SSE2-NEXT: pand {{.*}}(%rip), %xmm1
; SSE2-NEXT: psubd %xmm1, %xmm0
; SSE2-NEXT: movdqa {{.*#+}} xmm1 = [858993459,858993459,858993459,858993459]
; SSE2-NEXT: movdqa %xmm0, %xmm2
; SSE2-NEXT: pand %xmm1, %xmm2
; SSE2-NEXT: psrld $2, %xmm0
; SSE2-NEXT: pand %xmm1, %xmm0
; SSE2-NEXT: paddd %xmm2, %xmm0
; SSE2-NEXT: movdqa %xmm0, %xmm1
; SSE2-NEXT: psrld $4, %xmm1
; SSE2-NEXT: paddd %xmm0, %xmm1
; SSE2-NEXT: pand {{.*}}(%rip), %xmm1
; SSE2-NEXT: pxor %xmm0, %xmm0
; SSE2-NEXT: movdqa %xmm1, %xmm2
; SSE2-NEXT: punpckhdq {{.*#+}} xmm2 = xmm2[2],xmm0[2],xmm2[3],xmm0[3]
; SSE2-NEXT: psadbw %xmm0, %xmm2
; SSE2-NEXT: punpckldq {{.*#+}} xmm1 = xmm1[0],xmm0[0],xmm1[1],xmm0[1]
; SSE2-NEXT: psadbw %xmm0, %xmm1
; SSE2-NEXT: packuswb %xmm2, %xmm1
; SSE2-NEXT: movdqa %xmm1, %xmm0
; SSE2-NEXT: retq
;
; SSE3-LABEL: testv4i32:
; SSE3: # BB#0:
; SSE3-NEXT: movdqa %xmm0, %xmm1
; SSE3-NEXT: psrld $1, %xmm1
; SSE3-NEXT: pand {{.*}}(%rip), %xmm1
; SSE3-NEXT: psubd %xmm1, %xmm0
; SSE3-NEXT: movdqa {{.*#+}} xmm1 = [858993459,858993459,858993459,858993459]
; SSE3-NEXT: movdqa %xmm0, %xmm2
; SSE3-NEXT: pand %xmm1, %xmm2
; SSE3-NEXT: psrld $2, %xmm0
; SSE3-NEXT: pand %xmm1, %xmm0
; SSE3-NEXT: paddd %xmm2, %xmm0
; SSE3-NEXT: movdqa %xmm0, %xmm1
; SSE3-NEXT: psrld $4, %xmm1
; SSE3-NEXT: paddd %xmm0, %xmm1
; SSE3-NEXT: pand {{.*}}(%rip), %xmm1
; SSE3-NEXT: pxor %xmm0, %xmm0
; SSE3-NEXT: movdqa %xmm1, %xmm2
; SSE3-NEXT: punpckhdq {{.*#+}} xmm2 = xmm2[2],xmm0[2],xmm2[3],xmm0[3]
; SSE3-NEXT: psadbw %xmm0, %xmm2
; SSE3-NEXT: punpckldq {{.*#+}} xmm1 = xmm1[0],xmm0[0],xmm1[1],xmm0[1]
; SSE3-NEXT: psadbw %xmm0, %xmm1
; SSE3-NEXT: packuswb %xmm2, %xmm1
; SSE3-NEXT: movdqa %xmm1, %xmm0
; SSE3-NEXT: retq
;
; SSSE3-LABEL: testv4i32:
; SSSE3: # BB#0:
; SSSE3-NEXT: movdqa {{.*#+}} xmm2 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
; SSSE3-NEXT: movdqa %xmm0, %xmm3
; SSSE3-NEXT: pand %xmm2, %xmm3
; SSSE3-NEXT: movdqa {{.*#+}} xmm1 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
; SSSE3-NEXT: movdqa %xmm1, %xmm4
; SSSE3-NEXT: pshufb %xmm3, %xmm4
; SSSE3-NEXT: psrlw $4, %xmm0
; SSSE3-NEXT: pand %xmm2, %xmm0
; SSSE3-NEXT: pshufb %xmm0, %xmm1
; SSSE3-NEXT: paddb %xmm4, %xmm1
; SSSE3-NEXT: pxor %xmm0, %xmm0
; SSSE3-NEXT: movdqa %xmm1, %xmm2
; SSSE3-NEXT: punpckhdq {{.*#+}} xmm2 = xmm2[2],xmm0[2],xmm2[3],xmm0[3]
; SSSE3-NEXT: psadbw %xmm0, %xmm2
; SSSE3-NEXT: punpckldq {{.*#+}} xmm1 = xmm1[0],xmm0[0],xmm1[1],xmm0[1]
; SSSE3-NEXT: psadbw %xmm0, %xmm1
; SSSE3-NEXT: packuswb %xmm2, %xmm1
; SSSE3-NEXT: movdqa %xmm1, %xmm0
; SSSE3-NEXT: retq
;
; SSE41-LABEL: testv4i32:
; SSE41: # BB#0:
; SSE41-NEXT: movdqa {{.*#+}} xmm2 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
; SSE41-NEXT: movdqa %xmm0, %xmm3
; SSE41-NEXT: pand %xmm2, %xmm3
; SSE41-NEXT: movdqa {{.*#+}} xmm1 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
; SSE41-NEXT: movdqa %xmm1, %xmm4
; SSE41-NEXT: pshufb %xmm3, %xmm4
; SSE41-NEXT: psrlw $4, %xmm0
; SSE41-NEXT: pand %xmm2, %xmm0
; SSE41-NEXT: pshufb %xmm0, %xmm1
; SSE41-NEXT: paddb %xmm4, %xmm1
; SSE41-NEXT: pxor %xmm0, %xmm0
; SSE41-NEXT: movdqa %xmm1, %xmm2
; SSE41-NEXT: punpckhdq {{.*#+}} xmm2 = xmm2[2],xmm0[2],xmm2[3],xmm0[3]
; SSE41-NEXT: psadbw %xmm0, %xmm2
; SSE41-NEXT: punpckldq {{.*#+}} xmm1 = xmm1[0],xmm0[0],xmm1[1],xmm0[1]
; SSE41-NEXT: psadbw %xmm0, %xmm1
; SSE41-NEXT: packuswb %xmm2, %xmm1
; SSE41-NEXT: movdqa %xmm1, %xmm0
; SSE41-NEXT: retq
;
; AVX-LABEL: testv4i32:
; AVX: # BB#0:
; AVX-NEXT: vmovdqa {{.*#+}} xmm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
; AVX-NEXT: vpand %xmm1, %xmm0, %xmm2
; AVX-NEXT: vmovdqa {{.*#+}} xmm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
; AVX-NEXT: vpshufb %xmm2, %xmm3, %xmm2
; AVX-NEXT: vpsrlw $4, %xmm0, %xmm0
; AVX-NEXT: vpand %xmm1, %xmm0, %xmm0
; AVX-NEXT: vpshufb %xmm0, %xmm3, %xmm0
; AVX-NEXT: vpaddb %xmm2, %xmm0, %xmm0
; AVX-NEXT: vpxor %xmm1, %xmm1, %xmm1
; AVX-NEXT: vpunpckhdq {{.*#+}} xmm2 = xmm0[2],xmm1[2],xmm0[3],xmm1[3]
; AVX-NEXT: vpsadbw %xmm2, %xmm1, %xmm2
; AVX-NEXT: vpunpckldq {{.*#+}} xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1]
; AVX-NEXT: vpsadbw %xmm0, %xmm1, %xmm0
; AVX-NEXT: vpackuswb %xmm2, %xmm0, %xmm0
; AVX-NEXT: retq
%out = call <4 x i32> @llvm.ctpop.v4i32(<4 x i32> %in)
ret <4 x i32> %out
}
define <8 x i16> @testv8i16(<8 x i16> %in) {
; SSE2-LABEL: testv8i16:
; SSE2: # BB#0:
; SSE2-NEXT: movdqa %xmm0, %xmm1
; SSE2-NEXT: psrlw $1, %xmm1
; SSE2-NEXT: pand {{.*}}(%rip), %xmm1
; SSE2-NEXT: psubw %xmm1, %xmm0
; SSE2-NEXT: movdqa {{.*#+}} xmm1 = [13107,13107,13107,13107,13107,13107,13107,13107]
; SSE2-NEXT: movdqa %xmm0, %xmm2
; SSE2-NEXT: pand %xmm1, %xmm2
; SSE2-NEXT: psrlw $2, %xmm0
; SSE2-NEXT: pand %xmm1, %xmm0
; SSE2-NEXT: paddw %xmm2, %xmm0
; SSE2-NEXT: movdqa %xmm0, %xmm1
; SSE2-NEXT: psrlw $4, %xmm1
; SSE2-NEXT: paddw %xmm0, %xmm1
; SSE2-NEXT: pand {{.*}}(%rip), %xmm1
; SSE2-NEXT: movdqa %xmm1, %xmm0
; SSE2-NEXT: psllw $8, %xmm0
; SSE2-NEXT: paddb %xmm1, %xmm0
; SSE2-NEXT: psrlw $8, %xmm0
; SSE2-NEXT: retq
;
; SSE3-LABEL: testv8i16:
; SSE3: # BB#0:
; SSE3-NEXT: movdqa %xmm0, %xmm1
; SSE3-NEXT: psrlw $1, %xmm1
; SSE3-NEXT: pand {{.*}}(%rip), %xmm1
; SSE3-NEXT: psubw %xmm1, %xmm0
; SSE3-NEXT: movdqa {{.*#+}} xmm1 = [13107,13107,13107,13107,13107,13107,13107,13107]
; SSE3-NEXT: movdqa %xmm0, %xmm2
; SSE3-NEXT: pand %xmm1, %xmm2
; SSE3-NEXT: psrlw $2, %xmm0
; SSE3-NEXT: pand %xmm1, %xmm0
; SSE3-NEXT: paddw %xmm2, %xmm0
; SSE3-NEXT: movdqa %xmm0, %xmm1
; SSE3-NEXT: psrlw $4, %xmm1
; SSE3-NEXT: paddw %xmm0, %xmm1
; SSE3-NEXT: pand {{.*}}(%rip), %xmm1
; SSE3-NEXT: movdqa %xmm1, %xmm0
; SSE3-NEXT: psllw $8, %xmm0
; SSE3-NEXT: paddb %xmm1, %xmm0
; SSE3-NEXT: psrlw $8, %xmm0
; SSE3-NEXT: retq
;
; SSSE3-LABEL: testv8i16:
; SSSE3: # BB#0:
; SSSE3-NEXT: movdqa {{.*#+}} xmm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
; SSSE3-NEXT: movdqa %xmm0, %xmm2
; SSSE3-NEXT: pand %xmm1, %xmm2
; SSSE3-NEXT: movdqa {{.*#+}} xmm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
; SSSE3-NEXT: movdqa %xmm3, %xmm4
; SSSE3-NEXT: pshufb %xmm2, %xmm4
; SSSE3-NEXT: psrlw $4, %xmm0
; SSSE3-NEXT: pand %xmm1, %xmm0
; SSSE3-NEXT: pshufb %xmm0, %xmm3
; SSSE3-NEXT: paddb %xmm4, %xmm3
; SSSE3-NEXT: movdqa %xmm3, %xmm0
; SSSE3-NEXT: psllw $8, %xmm0
; SSSE3-NEXT: paddb %xmm3, %xmm0
; SSSE3-NEXT: psrlw $8, %xmm0
; SSSE3-NEXT: retq
;
; SSE41-LABEL: testv8i16:
; SSE41: # BB#0:
; SSE41-NEXT: movdqa {{.*#+}} xmm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
; SSE41-NEXT: movdqa %xmm0, %xmm2
; SSE41-NEXT: pand %xmm1, %xmm2
; SSE41-NEXT: movdqa {{.*#+}} xmm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
; SSE41-NEXT: movdqa %xmm3, %xmm4
; SSE41-NEXT: pshufb %xmm2, %xmm4
; SSE41-NEXT: psrlw $4, %xmm0
; SSE41-NEXT: pand %xmm1, %xmm0
; SSE41-NEXT: pshufb %xmm0, %xmm3
; SSE41-NEXT: paddb %xmm4, %xmm3
; SSE41-NEXT: movdqa %xmm3, %xmm0
; SSE41-NEXT: psllw $8, %xmm0
; SSE41-NEXT: paddb %xmm3, %xmm0
; SSE41-NEXT: psrlw $8, %xmm0
; SSE41-NEXT: retq
;
; AVX-LABEL: testv8i16:
; AVX: # BB#0:
; AVX-NEXT: vmovdqa {{.*#+}} xmm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
; AVX-NEXT: vpand %xmm1, %xmm0, %xmm2
; AVX-NEXT: vmovdqa {{.*#+}} xmm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
; AVX-NEXT: vpshufb %xmm2, %xmm3, %xmm2
; AVX-NEXT: vpsrlw $4, %xmm0, %xmm0
; AVX-NEXT: vpand %xmm1, %xmm0, %xmm0
; AVX-NEXT: vpshufb %xmm0, %xmm3, %xmm0
; AVX-NEXT: vpaddb %xmm2, %xmm0, %xmm0
; AVX-NEXT: vpsllw $8, %xmm0, %xmm1
; AVX-NEXT: vpaddb %xmm0, %xmm1, %xmm0
; AVX-NEXT: vpsrlw $8, %xmm0, %xmm0
; AVX-NEXT: retq
%out = call <8 x i16> @llvm.ctpop.v8i16(<8 x i16> %in)
ret <8 x i16> %out
}
define <16 x i8> @testv16i8(<16 x i8> %in) {
; SSE2-LABEL: testv16i8:
; SSE2: # BB#0:
; SSE2-NEXT: movdqa %xmm0, %xmm1
; SSE2-NEXT: psrlw $1, %xmm1
; SSE2-NEXT: pand {{.*}}(%rip), %xmm1
; SSE2-NEXT: psubb %xmm1, %xmm0
; SSE2-NEXT: movdqa {{.*#+}} xmm1 = [51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51]
; SSE2-NEXT: movdqa %xmm0, %xmm2
; SSE2-NEXT: pand %xmm1, %xmm2
; SSE2-NEXT: psrlw $2, %xmm0
; SSE2-NEXT: pand %xmm1, %xmm0
; SSE2-NEXT: paddb %xmm2, %xmm0
; SSE2-NEXT: movdqa %xmm0, %xmm1
; SSE2-NEXT: psrlw $4, %xmm1
; SSE2-NEXT: paddb %xmm0, %xmm1
; SSE2-NEXT: pand {{.*}}(%rip), %xmm1
; SSE2-NEXT: movdqa %xmm1, %xmm0
; SSE2-NEXT: retq
;
; SSE3-LABEL: testv16i8:
; SSE3: # BB#0:
; SSE3-NEXT: movdqa %xmm0, %xmm1
; SSE3-NEXT: psrlw $1, %xmm1
; SSE3-NEXT: pand {{.*}}(%rip), %xmm1
; SSE3-NEXT: psubb %xmm1, %xmm0
; SSE3-NEXT: movdqa {{.*#+}} xmm1 = [51,51,51,51,51,51,51,51,51,51,51,51,51,51,51,51]
; SSE3-NEXT: movdqa %xmm0, %xmm2
; SSE3-NEXT: pand %xmm1, %xmm2
; SSE3-NEXT: psrlw $2, %xmm0
; SSE3-NEXT: pand %xmm1, %xmm0
; SSE3-NEXT: paddb %xmm2, %xmm0
; SSE3-NEXT: movdqa %xmm0, %xmm1
; SSE3-NEXT: psrlw $4, %xmm1
; SSE3-NEXT: paddb %xmm0, %xmm1
; SSE3-NEXT: pand {{.*}}(%rip), %xmm1
; SSE3-NEXT: movdqa %xmm1, %xmm0
; SSE3-NEXT: retq
;
; SSSE3-LABEL: testv16i8:
; SSSE3: # BB#0:
; SSSE3-NEXT: movdqa {{.*#+}} xmm2 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
; SSSE3-NEXT: movdqa %xmm0, %xmm3
; SSSE3-NEXT: pand %xmm2, %xmm3
; SSSE3-NEXT: movdqa {{.*#+}} xmm1 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
; SSSE3-NEXT: movdqa %xmm1, %xmm4
; SSSE3-NEXT: pshufb %xmm3, %xmm4
; SSSE3-NEXT: psrlw $4, %xmm0
; SSSE3-NEXT: pand %xmm2, %xmm0
; SSSE3-NEXT: pshufb %xmm0, %xmm1
; SSSE3-NEXT: paddb %xmm4, %xmm1
; SSSE3-NEXT: movdqa %xmm1, %xmm0
; SSSE3-NEXT: retq
;
; SSE41-LABEL: testv16i8:
; SSE41: # BB#0:
; SSE41-NEXT: movdqa {{.*#+}} xmm2 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
; SSE41-NEXT: movdqa %xmm0, %xmm3
; SSE41-NEXT: pand %xmm2, %xmm3
; SSE41-NEXT: movdqa {{.*#+}} xmm1 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
; SSE41-NEXT: movdqa %xmm1, %xmm4
; SSE41-NEXT: pshufb %xmm3, %xmm4
; SSE41-NEXT: psrlw $4, %xmm0
; SSE41-NEXT: pand %xmm2, %xmm0
; SSE41-NEXT: pshufb %xmm0, %xmm1
; SSE41-NEXT: paddb %xmm4, %xmm1
; SSE41-NEXT: movdqa %xmm1, %xmm0
; SSE41-NEXT: retq
;
; AVX-LABEL: testv16i8:
; AVX: # BB#0:
; AVX-NEXT: vmovdqa {{.*#+}} xmm1 = [15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]
; AVX-NEXT: vpand %xmm1, %xmm0, %xmm2
; AVX-NEXT: vmovdqa {{.*#+}} xmm3 = [0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4]
; AVX-NEXT: vpshufb %xmm2, %xmm3, %xmm2
; AVX-NEXT: vpsrlw $4, %xmm0, %xmm0
; AVX-NEXT: vpand %xmm1, %xmm0, %xmm0
; AVX-NEXT: vpshufb %xmm0, %xmm3, %xmm0
; AVX-NEXT: vpaddb %xmm2, %xmm0, %xmm0
; AVX-NEXT: retq
%out = call <16 x i8> @llvm.ctpop.v16i8(<16 x i8> %in)
ret <16 x i8> %out
}
declare <2 x i64> @llvm.ctpop.v2i64(<2 x i64>)
declare <4 x i32> @llvm.ctpop.v4i32(<4 x i32>)
declare <8 x i16> @llvm.ctpop.v8i16(<8 x i16>)
declare <16 x i8> @llvm.ctpop.v16i8(<16 x i8>)
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