llvm/test/CodeGen/X86/pr77459.ll

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 4
; RUN: llc < %s -mtriple=x86_64-- -mcpu=x86-64 | FileCheck %s --check-prefixes=SSE,SSE2
; RUN: llc < %s -mtriple=x86_64-- -mcpu=x86-64-v2 | FileCheck %s --check-prefixes=SSE,SSE42
; RUN: llc < %s -mtriple=x86_64-- -mcpu=x86-64-v3 | FileCheck %s --check-prefixes=AVX2
; RUN: llc < %s -mtriple=x86_64-- -mcpu=x86-64-v4 | FileCheck %s --check-prefixes=AVX512,AVX512-V4
; RUN: llc < %s -mtriple=x86_64-- -mcpu=x86-64-v4 -mattr=+avx512vbmi | FileCheck %s --check-prefixes=AVX512,AVX512-VBMI

define i4 @reverse_cmp_v4i1(<4 x i32> %a0, <4 x i32> %a1) {
; SSE2-LABEL: reverse_cmp_v4i1:
; SSE2:       # %bb.0:
; SSE2-NEXT:    pcmpeqd %xmm1, %xmm0
; SSE2-NEXT:    movmskps %xmm0, %eax
; SSE2-NEXT:    leal (%rax,%rax), %ecx
; SSE2-NEXT:    andb $4, %cl
; SSE2-NEXT:    leal (,%rax,8), %edx
; SSE2-NEXT:    andb $8, %dl
; SSE2-NEXT:    orb %cl, %dl
; SSE2-NEXT:    movl %eax, %ecx
; SSE2-NEXT:    shrb %cl
; SSE2-NEXT:    andb $2, %cl
; SSE2-NEXT:    orb %dl, %cl
; SSE2-NEXT:    shrb $3, %al
; SSE2-NEXT:    orb %cl, %al
; SSE2-NEXT:    # kill: def $al killed $al killed $rax
; SSE2-NEXT:    retq
;
; SSE42-LABEL: reverse_cmp_v4i1:
; SSE42:       # %bb.0:
; SSE42-NEXT:    pcmpeqd %xmm1, %xmm0
; SSE42-NEXT:    pshufd {{.*#+}} xmm0 = xmm0[3,2,1,0]
; SSE42-NEXT:    movmskps %xmm0, %eax
; SSE42-NEXT:    # kill: def $al killed $al killed $eax
; SSE42-NEXT:    retq
;
; AVX2-LABEL: reverse_cmp_v4i1:
; AVX2:       # %bb.0:
; AVX2-NEXT:    vpcmpeqd %xmm1, %xmm0, %xmm0
; AVX2-NEXT:    vpshufd {{.*#+}} xmm0 = xmm0[3,2,1,0]
; AVX2-NEXT:    vmovmskps %xmm0, %eax
; AVX2-NEXT:    # kill: def $al killed $al killed $eax
; AVX2-NEXT:    retq
;
; AVX512-LABEL: reverse_cmp_v4i1:
; AVX512:       # %bb.0:
; AVX512-NEXT:    vpshufd {{.*#+}} xmm1 = xmm1[3,2,1,0]
; AVX512-NEXT:    vpshufd {{.*#+}} xmm0 = xmm0[3,2,1,0]
; AVX512-NEXT:    vpcmpeqd %xmm1, %xmm0, %k0
; AVX512-NEXT:    kmovd %k0, %eax
; AVX512-NEXT:    # kill: def $al killed $al killed $eax
; AVX512-NEXT:    retq
  %cmp = icmp eq <4 x i32> %a0, %a1
  %mask = bitcast <4 x i1> %cmp to i4
  %rev = tail call i4 @llvm.bitreverse.i4(i4 %mask)
  ret i4 %rev
}
declare i4 @llvm.bitreverse.i4(i4)

define i8 @reverse_cmp_v8i1(<8 x i16> %a0, <8 x i16> %a1) {
; SSE2-LABEL: reverse_cmp_v8i1:
; SSE2:       # %bb.0:
; SSE2-NEXT:    pcmpeqw %xmm1, %xmm0
; SSE2-NEXT:    packsswb %xmm0, %xmm0
; SSE2-NEXT:    pmovmskb %xmm0, %eax
; SSE2-NEXT:    rolb $4, %al
; SSE2-NEXT:    movl %eax, %ecx
; SSE2-NEXT:    andb $51, %cl
; SSE2-NEXT:    shlb $2, %cl
; SSE2-NEXT:    shrb $2, %al
; SSE2-NEXT:    andb $51, %al
; SSE2-NEXT:    orb %cl, %al
; SSE2-NEXT:    movl %eax, %ecx
; SSE2-NEXT:    andb $85, %cl
; SSE2-NEXT:    addb %cl, %cl
; SSE2-NEXT:    shrb %al
; SSE2-NEXT:    andb $85, %al
; SSE2-NEXT:    orb %cl, %al
; SSE2-NEXT:    # kill: def $al killed $al killed $eax
; SSE2-NEXT:    retq
;
; SSE42-LABEL: reverse_cmp_v8i1:
; SSE42:       # %bb.0:
; SSE42-NEXT:    pcmpeqw %xmm1, %xmm0
; SSE42-NEXT:    pshufb {{.*#+}} xmm0 = xmm0[14,15,12,13,10,11,8,9,6,7,4,5,2,3,0,1]
; SSE42-NEXT:    packsswb %xmm0, %xmm0
; SSE42-NEXT:    pmovmskb %xmm0, %eax
; SSE42-NEXT:    # kill: def $al killed $al killed $eax
; SSE42-NEXT:    retq
;
; AVX2-LABEL: reverse_cmp_v8i1:
; AVX2:       # %bb.0:
; AVX2-NEXT:    vpcmpeqw %xmm1, %xmm0, %xmm0
; AVX2-NEXT:    vpshufb {{.*#+}} xmm0 = xmm0[14,12,10,8,6,4,2,0,u,u,u,u,u,u,u,u]
; AVX2-NEXT:    vpmovmskb %xmm0, %eax
; AVX2-NEXT:    # kill: def $al killed $al killed $eax
; AVX2-NEXT:    retq
;
; AVX512-LABEL: reverse_cmp_v8i1:
; AVX512:       # %bb.0:
; AVX512-NEXT:    vpcmpeqw %xmm1, %xmm0, %k0
; AVX512-NEXT:    vpmovm2d %k0, %ymm0
; AVX512-NEXT:    vmovdqa {{.*#+}} ymm1 = [7,6,5,4,3,2,1,0]
; AVX512-NEXT:    vpermd %ymm0, %ymm1, %ymm0
; AVX512-NEXT:    vmovmskps %ymm0, %eax
; AVX512-NEXT:    # kill: def $al killed $al killed $eax
; AVX512-NEXT:    vzeroupper
; AVX512-NEXT:    retq
  %cmp = icmp eq <8 x i16> %a0, %a1
  %mask = bitcast <8 x i1> %cmp to i8
  %rev = tail call i8 @llvm.bitreverse.i8(i8 %mask)
  ret i8 %rev
}
declare i8 @llvm.bitreverse.i8(i8)

define i16 @reverse_cmp_v16i1(<16 x i8> %a0, <16 x i8> %a1) {
; SSE2-LABEL: reverse_cmp_v16i1:
; SSE2:       # %bb.0:
; SSE2-NEXT:    pcmpeqb %xmm1, %xmm0
; SSE2-NEXT:    pmovmskb %xmm0, %eax
; SSE2-NEXT:    rolw $8, %ax
; SSE2-NEXT:    movl %eax, %ecx
; SSE2-NEXT:    andl $3855, %ecx # imm = 0xF0F
; SSE2-NEXT:    shll $4, %ecx
; SSE2-NEXT:    shrl $4, %eax
; SSE2-NEXT:    andl $3855, %eax # imm = 0xF0F
; SSE2-NEXT:    orl %ecx, %eax
; SSE2-NEXT:    movl %eax, %ecx
; SSE2-NEXT:    andl $13107, %ecx # imm = 0x3333
; SSE2-NEXT:    shrl $2, %eax
; SSE2-NEXT:    andl $13107, %eax # imm = 0x3333
; SSE2-NEXT:    leal (%rax,%rcx,4), %eax
; SSE2-NEXT:    movl %eax, %ecx
; SSE2-NEXT:    andl $21845, %ecx # imm = 0x5555
; SSE2-NEXT:    shrl %eax
; SSE2-NEXT:    andl $21845, %eax # imm = 0x5555
; SSE2-NEXT:    leal (%rax,%rcx,2), %eax
; SSE2-NEXT:    # kill: def $ax killed $ax killed $eax
; SSE2-NEXT:    retq
;
; SSE42-LABEL: reverse_cmp_v16i1:
; SSE42:       # %bb.0:
; SSE42-NEXT:    pcmpeqb %xmm1, %xmm0
; SSE42-NEXT:    pshufb {{.*#+}} xmm0 = xmm0[15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0]
; SSE42-NEXT:    pmovmskb %xmm0, %eax
; SSE42-NEXT:    # kill: def $ax killed $ax killed $eax
; SSE42-NEXT:    retq
;
; AVX2-LABEL: reverse_cmp_v16i1:
; AVX2:       # %bb.0:
; AVX2-NEXT:    vpcmpeqb %xmm1, %xmm0, %xmm0
; AVX2-NEXT:    vpshufb {{.*#+}} xmm0 = xmm0[15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0]
; AVX2-NEXT:    vpmovmskb %xmm0, %eax
; AVX2-NEXT:    # kill: def $ax killed $ax killed $eax
; AVX2-NEXT:    retq
;
; AVX512-LABEL: reverse_cmp_v16i1:
; AVX512:       # %bb.0:
; AVX512-NEXT:    vpcmpeqb %xmm1, %xmm0, %k0
; AVX512-NEXT:    vpmovm2w %k0, %ymm0
; AVX512-NEXT:    vmovdqa {{.*#+}} ymm1 = [15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0]
; AVX512-NEXT:    vpermw %ymm0, %ymm1, %ymm0
; AVX512-NEXT:    vpmovw2m %ymm0, %k0
; AVX512-NEXT:    kmovd %k0, %eax
; AVX512-NEXT:    # kill: def $ax killed $ax killed $eax
; AVX512-NEXT:    vzeroupper
; AVX512-NEXT:    retq
  %cmp = icmp eq <16 x i8> %a0, %a1
  %mask = bitcast <16 x i1> %cmp to i16
  %rev = tail call i16 @llvm.bitreverse.i16(i16 %mask)
  ret i16 %rev
}
declare i16 @llvm.bitreverse.i16(i16)

define i32 @reverse_cmp_v32i1(<32 x i8> %a0, <32 x i8> %a1) {
; SSE2-LABEL: reverse_cmp_v32i1:
; SSE2:       # %bb.0:
; SSE2-NEXT:    pcmpeqb %xmm2, %xmm0
; SSE2-NEXT:    pmovmskb %xmm0, %eax
; SSE2-NEXT:    pcmpeqb %xmm3, %xmm1
; SSE2-NEXT:    pmovmskb %xmm1, %ecx
; SSE2-NEXT:    shll $16, %ecx
; SSE2-NEXT:    orl %eax, %ecx
; SSE2-NEXT:    bswapl %ecx
; SSE2-NEXT:    movl %ecx, %eax
; SSE2-NEXT:    andl $252645135, %eax # imm = 0xF0F0F0F
; SSE2-NEXT:    shll $4, %eax
; SSE2-NEXT:    shrl $4, %ecx
; SSE2-NEXT:    andl $252645135, %ecx # imm = 0xF0F0F0F
; SSE2-NEXT:    orl %eax, %ecx
; SSE2-NEXT:    movl %ecx, %eax
; SSE2-NEXT:    andl $858993459, %eax # imm = 0x33333333
; SSE2-NEXT:    shrl $2, %ecx
; SSE2-NEXT:    andl $858993459, %ecx # imm = 0x33333333
; SSE2-NEXT:    leal (%rcx,%rax,4), %eax
; SSE2-NEXT:    movl %eax, %ecx
; SSE2-NEXT:    andl $1431655765, %ecx # imm = 0x55555555
; SSE2-NEXT:    shrl %eax
; SSE2-NEXT:    andl $1431655765, %eax # imm = 0x55555555
; SSE2-NEXT:    leal (%rax,%rcx,2), %eax
; SSE2-NEXT:    retq
;
; SSE42-LABEL: reverse_cmp_v32i1:
; SSE42:       # %bb.0:
; SSE42-NEXT:    pcmpeqb %xmm2, %xmm0
; SSE42-NEXT:    pcmpeqb %xmm3, %xmm1
; SSE42-NEXT:    movdqa {{.*#+}} xmm2 = [15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0]
; SSE42-NEXT:    pshufb %xmm2, %xmm1
; SSE42-NEXT:    pmovmskb %xmm1, %ecx
; SSE42-NEXT:    pshufb %xmm2, %xmm0
; SSE42-NEXT:    pmovmskb %xmm0, %eax
; SSE42-NEXT:    shll $16, %eax
; SSE42-NEXT:    orl %ecx, %eax
; SSE42-NEXT:    retq
;
; AVX2-LABEL: reverse_cmp_v32i1:
; AVX2:       # %bb.0:
; AVX2-NEXT:    vpcmpeqb %ymm1, %ymm0, %ymm0
; AVX2-NEXT:    vpshufb {{.*#+}} ymm0 = ymm0[15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16]
; AVX2-NEXT:    vpermq {{.*#+}} ymm0 = ymm0[2,3,0,1]
; AVX2-NEXT:    vpmovmskb %ymm0, %eax
; AVX2-NEXT:    vzeroupper
; AVX2-NEXT:    retq
;
; AVX512-V4-LABEL: reverse_cmp_v32i1:
; AVX512-V4:       # %bb.0:
; AVX512-V4-NEXT:    vpcmpeqb %ymm1, %ymm0, %k0
; AVX512-V4-NEXT:    vpmovm2b %k0, %ymm0
; AVX512-V4-NEXT:    vpshufb {{.*#+}} ymm0 = ymm0[15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16]
; AVX512-V4-NEXT:    vpermq {{.*#+}} ymm0 = ymm0[2,3,0,1]
; AVX512-V4-NEXT:    vpmovmskb %ymm0, %eax
; AVX512-V4-NEXT:    vzeroupper
; AVX512-V4-NEXT:    retq
;
; AVX512-VBMI-LABEL: reverse_cmp_v32i1:
; AVX512-VBMI:       # %bb.0:
; AVX512-VBMI-NEXT:    vpcmpeqb %ymm1, %ymm0, %k0
; AVX512-VBMI-NEXT:    vpmovm2b %k0, %ymm0
; AVX512-VBMI-NEXT:    vmovdqa {{.*#+}} ymm1 = [31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0]
; AVX512-VBMI-NEXT:    vpermb %ymm0, %ymm1, %ymm0
; AVX512-VBMI-NEXT:    vpmovmskb %ymm0, %eax
; AVX512-VBMI-NEXT:    vzeroupper
; AVX512-VBMI-NEXT:    retq
  %cmp = icmp eq <32 x i8> %a0, %a1
  %mask = bitcast <32 x i1> %cmp to i32
  %rev = tail call i32 @llvm.bitreverse.i32(i32 %mask)
  ret i32 %rev
}
declare i32 @llvm.bitreverse.i32(i32)

define i64 @reverse_cmp_v64i1(<64 x i8> %a0, <64 x i8> %a1) {
; SSE2-LABEL: reverse_cmp_v64i1:
; SSE2:       # %bb.0:
; SSE2-NEXT:    pcmpeqb %xmm4, %xmm0
; SSE2-NEXT:    pmovmskb %xmm0, %eax
; SSE2-NEXT:    pcmpeqb %xmm5, %xmm1
; SSE2-NEXT:    pmovmskb %xmm1, %ecx
; SSE2-NEXT:    shll $16, %ecx
; SSE2-NEXT:    orl %eax, %ecx
; SSE2-NEXT:    pcmpeqb %xmm6, %xmm2
; SSE2-NEXT:    pmovmskb %xmm2, %eax
; SSE2-NEXT:    pcmpeqb %xmm7, %xmm3
; SSE2-NEXT:    pmovmskb %xmm3, %edx
; SSE2-NEXT:    shll $16, %edx
; SSE2-NEXT:    orl %eax, %edx
; SSE2-NEXT:    shlq $32, %rdx
; SSE2-NEXT:    orq %rcx, %rdx
; SSE2-NEXT:    bswapq %rdx
; SSE2-NEXT:    movq %rdx, %rax
; SSE2-NEXT:    shrq $4, %rax
; SSE2-NEXT:    movabsq $1085102592571150095, %rcx # imm = 0xF0F0F0F0F0F0F0F
; SSE2-NEXT:    andq %rcx, %rax
; SSE2-NEXT:    andq %rcx, %rdx
; SSE2-NEXT:    shlq $4, %rdx
; SSE2-NEXT:    orq %rax, %rdx
; SSE2-NEXT:    movabsq $3689348814741910323, %rax # imm = 0x3333333333333333
; SSE2-NEXT:    movq %rdx, %rcx
; SSE2-NEXT:    andq %rax, %rcx
; SSE2-NEXT:    shrq $2, %rdx
; SSE2-NEXT:    andq %rax, %rdx
; SSE2-NEXT:    leaq (%rdx,%rcx,4), %rax
; SSE2-NEXT:    movabsq $6148914691236517205, %rcx # imm = 0x5555555555555555
; SSE2-NEXT:    movq %rax, %rdx
; SSE2-NEXT:    andq %rcx, %rdx
; SSE2-NEXT:    shrq %rax
; SSE2-NEXT:    andq %rcx, %rax
; SSE2-NEXT:    leaq (%rax,%rdx,2), %rax
; SSE2-NEXT:    retq
;
; SSE42-LABEL: reverse_cmp_v64i1:
; SSE42:       # %bb.0:
; SSE42-NEXT:    pcmpeqb %xmm4, %xmm0
; SSE42-NEXT:    pcmpeqb %xmm5, %xmm1
; SSE42-NEXT:    pcmpeqb %xmm6, %xmm2
; SSE42-NEXT:    pcmpeqb %xmm7, %xmm3
; SSE42-NEXT:    movdqa {{.*#+}} xmm4 = [15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0]
; SSE42-NEXT:    pshufb %xmm4, %xmm3
; SSE42-NEXT:    pmovmskb %xmm3, %eax
; SSE42-NEXT:    pshufb %xmm4, %xmm2
; SSE42-NEXT:    pmovmskb %xmm2, %ecx
; SSE42-NEXT:    shll $16, %ecx
; SSE42-NEXT:    orl %eax, %ecx
; SSE42-NEXT:    pshufb %xmm4, %xmm1
; SSE42-NEXT:    pmovmskb %xmm1, %edx
; SSE42-NEXT:    pshufb %xmm4, %xmm0
; SSE42-NEXT:    pmovmskb %xmm0, %eax
; SSE42-NEXT:    shll $16, %eax
; SSE42-NEXT:    orl %edx, %eax
; SSE42-NEXT:    shlq $32, %rax
; SSE42-NEXT:    orq %rcx, %rax
; SSE42-NEXT:    retq
;
; AVX2-LABEL: reverse_cmp_v64i1:
; AVX2:       # %bb.0:
; AVX2-NEXT:    vpcmpeqb %ymm2, %ymm0, %ymm0
; AVX2-NEXT:    vpcmpeqb %ymm3, %ymm1, %ymm1
; AVX2-NEXT:    vbroadcasti128 {{.*#+}} ymm2 = [15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0]
; AVX2-NEXT:    # ymm2 = mem[0,1,0,1]
; AVX2-NEXT:    vpshufb %ymm2, %ymm1, %ymm1
; AVX2-NEXT:    vpermq {{.*#+}} ymm1 = ymm1[2,3,0,1]
; AVX2-NEXT:    vpmovmskb %ymm1, %ecx
; AVX2-NEXT:    vpshufb %ymm2, %ymm0, %ymm0
; AVX2-NEXT:    vpermq {{.*#+}} ymm0 = ymm0[2,3,0,1]
; AVX2-NEXT:    vpmovmskb %ymm0, %eax
; AVX2-NEXT:    shlq $32, %rax
; AVX2-NEXT:    orq %rcx, %rax
; AVX2-NEXT:    vzeroupper
; AVX2-NEXT:    retq
;
; AVX512-V4-LABEL: reverse_cmp_v64i1:
; AVX512-V4:       # %bb.0:
; AVX512-V4-NEXT:    vpcmpeqb %zmm1, %zmm0, %k0
; AVX512-V4-NEXT:    vpmovm2b %k0, %zmm0
; AVX512-V4-NEXT:    vpshufb {{.*#+}} zmm0 = zmm0[15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,47,46,45,44,43,42,41,40,39,38,37,36,35,34,33,32,63,62,61,60,59,58,57,56,55,54,53,52,51,50,49,48]
; AVX512-V4-NEXT:    vshufi64x2 {{.*#+}} zmm0 = zmm0[6,7,4,5,2,3,0,1]
; AVX512-V4-NEXT:    vpmovb2m %zmm0, %k0
; AVX512-V4-NEXT:    kmovq %k0, %rax
; AVX512-V4-NEXT:    vzeroupper
; AVX512-V4-NEXT:    retq
;
; AVX512-VBMI-LABEL: reverse_cmp_v64i1:
; AVX512-VBMI:       # %bb.0:
; AVX512-VBMI-NEXT:    vpcmpeqb %zmm1, %zmm0, %k0
; AVX512-VBMI-NEXT:    vpmovm2b %k0, %zmm0
; AVX512-VBMI-NEXT:    vmovdqa64 {{.*#+}} zmm1 = [63,62,61,60,59,58,57,56,55,54,53,52,51,50,49,48,47,46,45,44,43,42,41,40,39,38,37,36,35,34,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0]
; AVX512-VBMI-NEXT:    vpermb %zmm0, %zmm1, %zmm0
; AVX512-VBMI-NEXT:    vpmovb2m %zmm0, %k0
; AVX512-VBMI-NEXT:    kmovq %k0, %rax
; AVX512-VBMI-NEXT:    vzeroupper
; AVX512-VBMI-NEXT:    retq
  %cmp = icmp eq <64 x i8> %a0, %a1
  %mask = bitcast <64 x i1> %cmp to i64
  %rev = tail call i64 @llvm.bitreverse.i64(i64 %mask)
  ret i64 %rev
}
declare i64 @llvm.bitreverse.i64(i64)

;; NOTE: These prefixes are unused and the list is autogenerated. Do not add tests below this line:
; SSE: {{.*}}