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asm_amd64.s
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// Code generated by command: go run avo.go -out ../../asm_amd64.s -stubs ../../stubs_amd64.go -pkg vectorcmp --dispatcher-amd64 ../../dispatch_amd64.go --dispatcher-other ../../dispatch_other.go --generate-test ../../generated_test.go. DO NOT EDIT.
//go:build !purego
#include "textflag.h"
DATA constants<>+0(SB)/4, $0x55555555
DATA constants<>+4(SB)/4, $0x11111111
DATA constants<>+8(SB)/4, $0x01010101
GLOBL constants<>(SB), RODATA|NOPTR, $12
DATA const_zeroes<>+0(SB)/4, $0x00000000
DATA const_zeroes<>+4(SB)/4, $0x00000000
DATA const_zeroes<>+8(SB)/4, $0x00000000
DATA const_zeroes<>+12(SB)/4, $0x00000000
GLOBL const_zeroes<>(SB), RODATA|NOPTR, $16
DATA const_onezero<>+0(SB)/4, $0x01000100
DATA const_onezero<>+4(SB)/4, $0x01000100
DATA const_onezero<>+8(SB)/4, $0x01000100
DATA const_onezero<>+12(SB)/4, $0x01000100
GLOBL const_onezero<>(SB), RODATA|NOPTR, $16
DATA const_three_through_zero<>+0(SB)/4, $0x03020100
DATA const_three_through_zero<>+4(SB)/4, $0x03020100
DATA const_three_through_zero<>+8(SB)/4, $0x03020100
DATA const_three_through_zero<>+12(SB)/4, $0x03020100
GLOBL const_three_through_zero<>(SB), RODATA|NOPTR, $16
DATA const_seven_through_zero<>+0(SB)/8, $0x0706050403020100
DATA const_seven_through_zero<>+8(SB)/8, $0x0706050403020100
GLOBL const_seven_through_zero<>(SB), RODATA|NOPTR, $16
DATA const_drop_half<>+0(SB)/8, $0x0e0c0a0806040200
DATA const_drop_half<>+8(SB)/8, $0xffffffffffffffff
GLOBL const_drop_half<>(SB), RODATA|NOPTR, $16
DATA const_drop_threequarters<>+0(SB)/8, $0xffffffff0c080400
DATA const_drop_threequarters<>+8(SB)/8, $0xffffffffffffffff
GLOBL const_drop_threequarters<>(SB), RODATA|NOPTR, $16
DATA const_drop_seveneight<>+0(SB)/8, $0xffffffffffff0800
DATA const_drop_seveneight<>+8(SB)/8, $0xffffffffffffffff
GLOBL const_drop_seveneight<>(SB), RODATA|NOPTR, $16
// func asmAVX2EqualsUint8(dstMask []byte, b uint8, rows []uint8)
// Requires: AVX, AVX2
TEXT ·asmAVX2EqualsUint8(SB), NOSPLIT, $0-56
MOVQ dstMask_base+0(FP), AX
MOVQ rows_base+32(FP), CX
MOVQ rows_len+40(FP), DX
// Read param b into YMM register. If b is 0x07, YMM becomes {0x07, 0x07, 0x07...}
VPBROADCASTB b+24(FP), Y0
loop:
// Load 2 256-bit chunks into YMM registers
VMOVDQU (CX), Y1
VMOVDQU 32(CX), Y2
// Compare all values in each YMM register to b. Each byte in the YMMs becomes 0x00 (mismatch) or 0xff (match)
VPCMPEQB Y1, Y0, Y1
VPCMPEQB Y2, Y0, Y2
// Take one bit of each byte and pack it into an R32
VPMOVMSKB Y1, BX
VPMOVMSKB Y2, SI
// Write the registers to dstMask
MOVL BX, (AX)
MOVL SI, 4(AX)
// Update our offsets into rows and dstMask
ADDQ $0x00000040, CX
ADDQ $0x00000008, AX
// Decrement loop counter
SUBQ $0x00000040, DX
JNZ loop
VZEROALL
RET
// func asmAVXEqualsUint8(dstMask []byte, b uint8, rows []uint8)
// Requires: AVX, SSE2
TEXT ·asmAVXEqualsUint8(SB), NOSPLIT, $0-56
MOVQ dstMask_base+0(FP), AX
MOVQ rows_base+32(FP), CX
MOVQ rows_len+40(FP), DX
// Read param b into XMM register. If b is 0x07, YMM becomes {0x07, 0x07, 0x07...}
MOVB b+24(FP), BL
MOVQ BX, X0
VPSHUFB const_zeroes<>+0(SB), X0, X0
loop:
// Load 2 128-bit chunks into XMM registers
VMOVDQU (CX), X1
VMOVDQU 16(CX), X2
// Compare all values in each XMM register to b. Each byte in the YMMs becomes 0x00 (mismatch) or 0xff (match)
VPCMPEQB X1, X0, X1
VPCMPEQB X2, X0, X2
// Take one bit of each byte and pack it into an R32
VPMOVMSKB X1, BX
VPMOVMSKB X2, SI
// Write the registers to dstMask
MOVW BX, (AX)
MOVW SI, 2(AX)
// Update our offsets into rows and dstMask
ADDQ $0x00000020, CX
ADDQ $0x00000004, AX
// Decrement loop counter
SUBQ $0x00000020, DX
JNZ loop
VZEROALL
RET
// func asmAVX2GreaterThanUint8(dstMask []byte, b uint8, rows []uint8)
// Requires: AVX, AVX2
TEXT ·asmAVX2GreaterThanUint8(SB), NOSPLIT, $0-56
MOVQ dstMask_base+0(FP), AX
MOVQ rows_base+32(FP), CX
MOVQ rows_len+40(FP), DX
// Read param b into YMM register. If b is 0x07, YMM becomes {0x07, 0x07, 0x07...}
VPBROADCASTB b+24(FP), Y0
loop:
// Load 2 256-bit chunks into YMM registers
VMOVDQU (CX), Y1
VMOVDQU 32(CX), Y2
// Compare all values in each YMM register to b. Each byte in the YMMs becomes 0x00 (mismatch) or 0xff (match)
VPCMPGTB Y1, Y0, Y1
VPCMPGTB Y2, Y0, Y2
// Take one bit of each byte and pack it into an R32
VPMOVMSKB Y1, BX
VPMOVMSKB Y2, SI
// Write the registers to dstMask
MOVL BX, (AX)
MOVL SI, 4(AX)
// Update our offsets into rows and dstMask
ADDQ $0x00000040, CX
ADDQ $0x00000008, AX
// Decrement loop counter
SUBQ $0x00000040, DX
JNZ loop
VZEROALL
RET
// func asmAVXGreaterThanUint8(dstMask []byte, b uint8, rows []uint8)
// Requires: AVX, SSE2
TEXT ·asmAVXGreaterThanUint8(SB), NOSPLIT, $0-56
MOVQ dstMask_base+0(FP), AX
MOVQ rows_base+32(FP), CX
MOVQ rows_len+40(FP), DX
// Read param b into XMM register. If b is 0x07, YMM becomes {0x07, 0x07, 0x07...}
MOVB b+24(FP), BL
MOVQ BX, X0
VPSHUFB const_zeroes<>+0(SB), X0, X0
loop:
// Load 2 128-bit chunks into XMM registers
VMOVDQU (CX), X1
VMOVDQU 16(CX), X2
// Compare all values in each XMM register to b. Each byte in the YMMs becomes 0x00 (mismatch) or 0xff (match)
VPCMPGTB X1, X0, X1
VPCMPGTB X2, X0, X2
// Take one bit of each byte and pack it into an R32
VPMOVMSKB X1, BX
VPMOVMSKB X2, SI
// Write the registers to dstMask
MOVW BX, (AX)
MOVW SI, 2(AX)
// Update our offsets into rows and dstMask
ADDQ $0x00000020, CX
ADDQ $0x00000004, AX
// Decrement loop counter
SUBQ $0x00000020, DX
JNZ loop
VZEROALL
RET
// func asmAVX2LessThanUint8(dstMask []byte, b uint8, rows []uint8)
// Requires: AVX, AVX2
TEXT ·asmAVX2LessThanUint8(SB), NOSPLIT, $0-56
MOVQ dstMask_base+0(FP), AX
MOVQ rows_base+32(FP), CX
MOVQ rows_len+40(FP), DX
// Read param b into YMM register. If b is 0x07, YMM becomes {0x07, 0x07, 0x07...}
VPBROADCASTB b+24(FP), Y0
loop:
// Load 2 256-bit chunks into YMM registers
VMOVDQU (CX), Y1
VMOVDQU 32(CX), Y2
// Compare all values in each YMM register to b. Each byte in the YMMs becomes 0x00 (mismatch) or 0xff (match)
VPCMPGTB Y0, Y1, Y1
VPCMPGTB Y0, Y2, Y2
// Take one bit of each byte and pack it into an R32
VPMOVMSKB Y1, BX
VPMOVMSKB Y2, SI
// Write the registers to dstMask
MOVL BX, (AX)
MOVL SI, 4(AX)
// Update our offsets into rows and dstMask
ADDQ $0x00000040, CX
ADDQ $0x00000008, AX
// Decrement loop counter
SUBQ $0x00000040, DX
JNZ loop
VZEROALL
RET
// func asmAVXLessThanUint8(dstMask []byte, b uint8, rows []uint8)
// Requires: AVX, SSE2
TEXT ·asmAVXLessThanUint8(SB), NOSPLIT, $0-56
MOVQ dstMask_base+0(FP), AX
MOVQ rows_base+32(FP), CX
MOVQ rows_len+40(FP), DX
// Read param b into XMM register. If b is 0x07, YMM becomes {0x07, 0x07, 0x07...}
MOVB b+24(FP), BL
MOVQ BX, X0
VPSHUFB const_zeroes<>+0(SB), X0, X0
loop:
// Load 2 128-bit chunks into XMM registers
VMOVDQU (CX), X1
VMOVDQU 16(CX), X2
// Compare all values in each XMM register to b. Each byte in the YMMs becomes 0x00 (mismatch) or 0xff (match)
VPCMPGTB X0, X1, X1
VPCMPGTB X0, X2, X2
// Take one bit of each byte and pack it into an R32
VPMOVMSKB X1, BX
VPMOVMSKB X2, SI
// Write the registers to dstMask
MOVW BX, (AX)
MOVW SI, 2(AX)
// Update our offsets into rows and dstMask
ADDQ $0x00000020, CX
ADDQ $0x00000004, AX
// Decrement loop counter
SUBQ $0x00000020, DX
JNZ loop
VZEROALL
RET
// func asmAVX2GreaterEqualsUint8(dstMask []byte, b uint8, rows []uint8)
// Requires: AVX, AVX2
TEXT ·asmAVX2GreaterEqualsUint8(SB), NOSPLIT, $0-56
MOVQ dstMask_base+0(FP), AX
MOVQ rows_base+32(FP), CX
MOVQ rows_len+40(FP), DX
// Read param b into YMM register. If b is 0x07, YMM becomes {0x07, 0x07, 0x07...}
VPBROADCASTB b+24(FP), Y0
loop:
// Load 2 256-bit chunks into YMM registers
VMOVDQU (CX), Y1
VMOVDQU 32(CX), Y2
// Compare all values in each YMM register to b. Each byte in the YMMs becomes 0x00 (mismatch) or 0xff (match)
VPCMPGTB Y0, Y1, Y1
VPCMPGTB Y0, Y2, Y2
// Take one bit of each byte and pack it into an R32
VPMOVMSKB Y1, BX
VPMOVMSKB Y2, SI
// To get GreaterEquals semantics, we flipped the arguments of VPCMPGT and now invert the result
NOTL BX
NOTL SI
// Write the registers to dstMask
MOVL BX, (AX)
MOVL SI, 4(AX)
// Update our offsets into rows and dstMask
ADDQ $0x00000040, CX
ADDQ $0x00000008, AX
// Decrement loop counter
SUBQ $0x00000040, DX
JNZ loop
VZEROALL
RET
// func asmAVXGreaterEqualsUint8(dstMask []byte, b uint8, rows []uint8)
// Requires: AVX, SSE2
TEXT ·asmAVXGreaterEqualsUint8(SB), NOSPLIT, $0-56
MOVQ dstMask_base+0(FP), AX
MOVQ rows_base+32(FP), CX
MOVQ rows_len+40(FP), DX
// Read param b into XMM register. If b is 0x07, YMM becomes {0x07, 0x07, 0x07...}
MOVB b+24(FP), BL
MOVQ BX, X0
VPSHUFB const_zeroes<>+0(SB), X0, X0
loop:
// Load 2 128-bit chunks into XMM registers
VMOVDQU (CX), X1
VMOVDQU 16(CX), X2
// Compare all values in each XMM register to b. Each byte in the YMMs becomes 0x00 (mismatch) or 0xff (match)
VPCMPGTB X0, X1, X1
VPCMPGTB X0, X2, X2
// Take one bit of each byte and pack it into an R32
VPMOVMSKB X1, BX
VPMOVMSKB X2, SI
// To get GreaterEquals semantics, we flipped the arguments of VPCMPGT and now invert the result
NOTW BX
NOTW SI
// Write the registers to dstMask
MOVW BX, (AX)
MOVW SI, 2(AX)
// Update our offsets into rows and dstMask
ADDQ $0x00000020, CX
ADDQ $0x00000004, AX
// Decrement loop counter
SUBQ $0x00000020, DX
JNZ loop
VZEROALL
RET
// func asmAVX2LesserEqualsUint8(dstMask []byte, b uint8, rows []uint8)
// Requires: AVX, AVX2
TEXT ·asmAVX2LesserEqualsUint8(SB), NOSPLIT, $0-56
MOVQ dstMask_base+0(FP), AX
MOVQ rows_base+32(FP), CX
MOVQ rows_len+40(FP), DX
// Read param b into YMM register. If b is 0x07, YMM becomes {0x07, 0x07, 0x07...}
VPBROADCASTB b+24(FP), Y0
loop:
// Load 2 256-bit chunks into YMM registers
VMOVDQU (CX), Y1
VMOVDQU 32(CX), Y2
// Compare all values in each YMM register to b. Each byte in the YMMs becomes 0x00 (mismatch) or 0xff (match)
VPCMPGTB Y1, Y0, Y1
VPCMPGTB Y2, Y0, Y2
// Take one bit of each byte and pack it into an R32
VPMOVMSKB Y1, BX
VPMOVMSKB Y2, SI
// To get LesserEquals semantics, we flipped the arguments of VPCMPGT and now invert the result
NOTL BX
NOTL SI
// Write the registers to dstMask
MOVL BX, (AX)
MOVL SI, 4(AX)
// Update our offsets into rows and dstMask
ADDQ $0x00000040, CX
ADDQ $0x00000008, AX
// Decrement loop counter
SUBQ $0x00000040, DX
JNZ loop
VZEROALL
RET
// func asmAVXLesserEqualsUint8(dstMask []byte, b uint8, rows []uint8)
// Requires: AVX, SSE2
TEXT ·asmAVXLesserEqualsUint8(SB), NOSPLIT, $0-56
MOVQ dstMask_base+0(FP), AX
MOVQ rows_base+32(FP), CX
MOVQ rows_len+40(FP), DX
// Read param b into XMM register. If b is 0x07, YMM becomes {0x07, 0x07, 0x07...}
MOVB b+24(FP), BL
MOVQ BX, X0
VPSHUFB const_zeroes<>+0(SB), X0, X0
loop:
// Load 2 128-bit chunks into XMM registers
VMOVDQU (CX), X1
VMOVDQU 16(CX), X2
// Compare all values in each XMM register to b. Each byte in the YMMs becomes 0x00 (mismatch) or 0xff (match)
VPCMPGTB X1, X0, X1
VPCMPGTB X2, X0, X2
// Take one bit of each byte and pack it into an R32
VPMOVMSKB X1, BX
VPMOVMSKB X2, SI
// To get LesserEquals semantics, we flipped the arguments of VPCMPGT and now invert the result
NOTW BX
NOTW SI
// Write the registers to dstMask
MOVW BX, (AX)
MOVW SI, 2(AX)
// Update our offsets into rows and dstMask
ADDQ $0x00000020, CX
ADDQ $0x00000004, AX
// Decrement loop counter
SUBQ $0x00000020, DX
JNZ loop
VZEROALL
RET
// func asmAVX2EqualsUint16(dstMask []byte, b uint16, rows []uint16)
// Requires: AVX, AVX2, BMI2
TEXT ·asmAVX2EqualsUint16(SB), NOSPLIT, $0-56
MOVQ dstMask_base+0(FP), AX
MOVQ rows_base+32(FP), CX
MOVQ rows_len+40(FP), DX
// Read param b into YMM register. If b is 0x07, YMM becomes {0x07, 0x07, 0x07...}
VPBROADCASTW b+24(FP), Y0
// Load the mask 01010101... which we will use with PEXT to drop half the bits
MOVL constants<>+0(SB), DI
loop:
// Load 2 256-bit chunks into YMM registers
VMOVDQU (CX), Y1
VMOVDQU 32(CX), Y2
// Compare all values in each YMM register to b. Each byte in the YMMs becomes 0x00 (mismatch) or 0xff (match)
VPCMPEQW Y1, Y0, Y1
VPCMPEQW Y2, Y0, Y2
// Take one bit of each byte and pack it into an R32
VPMOVMSKB Y1, BX
VPMOVMSKB Y2, SI
// Drop every second bit from these registers
PEXTL DI, BX, BX
PEXTL DI, SI, SI
// Write the registers to dstMask
MOVW BX, (AX)
MOVW SI, 2(AX)
// Update our offsets into rows and dstMask
ADDQ $0x00000040, CX
ADDQ $0x00000004, AX
// Decrement loop counter
SUBQ $0x00000020, DX
JNZ loop
VZEROALL
RET
// func asmAVXEqualsUint16(dstMask []byte, b uint16, rows []uint16)
// Requires: AVX, SSE2
TEXT ·asmAVXEqualsUint16(SB), NOSPLIT, $0-56
MOVQ dstMask_base+0(FP), AX
MOVQ rows_base+32(FP), CX
MOVQ rows_len+40(FP), DX
// Read param b into XMM register. If b is 0x07, YMM becomes {0x07, 0x07, 0x07...}
MOVW b+24(FP), BX
MOVQ BX, X0
VPSHUFB const_onezero<>+0(SB), X0, X0
loop:
// Load 2 128-bit chunks into XMM registers
VMOVDQU (CX), X1
VMOVDQU 16(CX), X2
// Compare all values in each XMM register to b. Each byte in the YMMs becomes 0x00 (mismatch) or 0xff (match)
VPCMPEQW X1, X0, X1
VPCMPEQW X2, X0, X2
// Drop every second byte from these registers
VPSHUFB const_drop_half<>+0(SB), X1, X1
VPSHUFB const_drop_half<>+0(SB), X2, X2
// Take one bit of each byte and pack it into an R32
VPMOVMSKB X1, BX
VPMOVMSKB X2, SI
// Write the registers to dstMask
MOVB BL, (AX)
MOVB SI, 1(AX)
// Update our offsets into rows and dstMask
ADDQ $0x00000020, CX
ADDQ $0x00000002, AX
// Decrement loop counter
SUBQ $0x00000010, DX
JNZ loop
VZEROALL
RET
// func asmAVX2GreaterThanUint16(dstMask []byte, b uint16, rows []uint16)
// Requires: AVX, AVX2, BMI2
TEXT ·asmAVX2GreaterThanUint16(SB), NOSPLIT, $0-56
MOVQ dstMask_base+0(FP), AX
MOVQ rows_base+32(FP), CX
MOVQ rows_len+40(FP), DX
// Read param b into YMM register. If b is 0x07, YMM becomes {0x07, 0x07, 0x07...}
VPBROADCASTW b+24(FP), Y0
// Load the mask 01010101... which we will use with PEXT to drop half the bits
MOVL constants<>+0(SB), DI
loop:
// Load 2 256-bit chunks into YMM registers
VMOVDQU (CX), Y1
VMOVDQU 32(CX), Y2
// Compare all values in each YMM register to b. Each byte in the YMMs becomes 0x00 (mismatch) or 0xff (match)
VPCMPGTW Y1, Y0, Y1
VPCMPGTW Y2, Y0, Y2
// Take one bit of each byte and pack it into an R32
VPMOVMSKB Y1, BX
VPMOVMSKB Y2, SI
// Drop every second bit from these registers
PEXTL DI, BX, BX
PEXTL DI, SI, SI
// Write the registers to dstMask
MOVW BX, (AX)
MOVW SI, 2(AX)
// Update our offsets into rows and dstMask
ADDQ $0x00000040, CX
ADDQ $0x00000004, AX
// Decrement loop counter
SUBQ $0x00000020, DX
JNZ loop
VZEROALL
RET
// func asmAVXGreaterThanUint16(dstMask []byte, b uint16, rows []uint16)
// Requires: AVX, SSE2
TEXT ·asmAVXGreaterThanUint16(SB), NOSPLIT, $0-56
MOVQ dstMask_base+0(FP), AX
MOVQ rows_base+32(FP), CX
MOVQ rows_len+40(FP), DX
// Read param b into XMM register. If b is 0x07, YMM becomes {0x07, 0x07, 0x07...}
MOVW b+24(FP), BX
MOVQ BX, X0
VPSHUFB const_onezero<>+0(SB), X0, X0
loop:
// Load 2 128-bit chunks into XMM registers
VMOVDQU (CX), X1
VMOVDQU 16(CX), X2
// Compare all values in each XMM register to b. Each byte in the YMMs becomes 0x00 (mismatch) or 0xff (match)
VPCMPGTW X1, X0, X1
VPCMPGTW X2, X0, X2
// Drop every second byte from these registers
VPSHUFB const_drop_half<>+0(SB), X1, X1
VPSHUFB const_drop_half<>+0(SB), X2, X2
// Take one bit of each byte and pack it into an R32
VPMOVMSKB X1, BX
VPMOVMSKB X2, SI
// Write the registers to dstMask
MOVB BL, (AX)
MOVB SI, 1(AX)
// Update our offsets into rows and dstMask
ADDQ $0x00000020, CX
ADDQ $0x00000002, AX
// Decrement loop counter
SUBQ $0x00000010, DX
JNZ loop
VZEROALL
RET
// func asmAVX2LessThanUint16(dstMask []byte, b uint16, rows []uint16)
// Requires: AVX, AVX2, BMI2
TEXT ·asmAVX2LessThanUint16(SB), NOSPLIT, $0-56
MOVQ dstMask_base+0(FP), AX
MOVQ rows_base+32(FP), CX
MOVQ rows_len+40(FP), DX
// Read param b into YMM register. If b is 0x07, YMM becomes {0x07, 0x07, 0x07...}
VPBROADCASTW b+24(FP), Y0
// Load the mask 01010101... which we will use with PEXT to drop half the bits
MOVL constants<>+0(SB), DI
loop:
// Load 2 256-bit chunks into YMM registers
VMOVDQU (CX), Y1
VMOVDQU 32(CX), Y2
// Compare all values in each YMM register to b. Each byte in the YMMs becomes 0x00 (mismatch) or 0xff (match)
VPCMPGTW Y0, Y1, Y1
VPCMPGTW Y0, Y2, Y2
// Take one bit of each byte and pack it into an R32
VPMOVMSKB Y1, BX
VPMOVMSKB Y2, SI
// Drop every second bit from these registers
PEXTL DI, BX, BX
PEXTL DI, SI, SI
// Write the registers to dstMask
MOVW BX, (AX)
MOVW SI, 2(AX)
// Update our offsets into rows and dstMask
ADDQ $0x00000040, CX
ADDQ $0x00000004, AX
// Decrement loop counter
SUBQ $0x00000020, DX
JNZ loop
VZEROALL
RET
// func asmAVXLessThanUint16(dstMask []byte, b uint16, rows []uint16)
// Requires: AVX, SSE2
TEXT ·asmAVXLessThanUint16(SB), NOSPLIT, $0-56
MOVQ dstMask_base+0(FP), AX
MOVQ rows_base+32(FP), CX
MOVQ rows_len+40(FP), DX
// Read param b into XMM register. If b is 0x07, YMM becomes {0x07, 0x07, 0x07...}
MOVW b+24(FP), BX
MOVQ BX, X0
VPSHUFB const_onezero<>+0(SB), X0, X0
loop:
// Load 2 128-bit chunks into XMM registers
VMOVDQU (CX), X1
VMOVDQU 16(CX), X2
// Compare all values in each XMM register to b. Each byte in the YMMs becomes 0x00 (mismatch) or 0xff (match)
VPCMPGTW X0, X1, X1
VPCMPGTW X0, X2, X2
// Drop every second byte from these registers
VPSHUFB const_drop_half<>+0(SB), X1, X1
VPSHUFB const_drop_half<>+0(SB), X2, X2
// Take one bit of each byte and pack it into an R32
VPMOVMSKB X1, BX
VPMOVMSKB X2, SI
// Write the registers to dstMask
MOVB BL, (AX)
MOVB SI, 1(AX)
// Update our offsets into rows and dstMask
ADDQ $0x00000020, CX
ADDQ $0x00000002, AX
// Decrement loop counter
SUBQ $0x00000010, DX
JNZ loop
VZEROALL
RET
// func asmAVX2GreaterEqualsUint16(dstMask []byte, b uint16, rows []uint16)
// Requires: AVX, AVX2, BMI2
TEXT ·asmAVX2GreaterEqualsUint16(SB), NOSPLIT, $0-56
MOVQ dstMask_base+0(FP), AX
MOVQ rows_base+32(FP), CX
MOVQ rows_len+40(FP), DX
// Read param b into YMM register. If b is 0x07, YMM becomes {0x07, 0x07, 0x07...}
VPBROADCASTW b+24(FP), Y0
// Load the mask 01010101... which we will use with PEXT to drop half the bits
MOVL constants<>+0(SB), DI
loop:
// Load 2 256-bit chunks into YMM registers
VMOVDQU (CX), Y1
VMOVDQU 32(CX), Y2
// Compare all values in each YMM register to b. Each byte in the YMMs becomes 0x00 (mismatch) or 0xff (match)
VPCMPGTW Y0, Y1, Y1
VPCMPGTW Y0, Y2, Y2
// Take one bit of each byte and pack it into an R32
VPMOVMSKB Y1, BX
VPMOVMSKB Y2, SI
// Drop every second bit from these registers
PEXTL DI, BX, BX
PEXTL DI, SI, SI
// To get GreaterEquals semantics, we flipped the arguments of VPCMPGT and now invert the result
NOTW BX
NOTW SI
// Write the registers to dstMask
MOVW BX, (AX)
MOVW SI, 2(AX)
// Update our offsets into rows and dstMask
ADDQ $0x00000040, CX
ADDQ $0x00000004, AX
// Decrement loop counter
SUBQ $0x00000020, DX
JNZ loop
VZEROALL
RET
// func asmAVXGreaterEqualsUint16(dstMask []byte, b uint16, rows []uint16)
// Requires: AVX, SSE2
TEXT ·asmAVXGreaterEqualsUint16(SB), NOSPLIT, $0-56
MOVQ dstMask_base+0(FP), AX
MOVQ rows_base+32(FP), CX
MOVQ rows_len+40(FP), DX
// Read param b into XMM register. If b is 0x07, YMM becomes {0x07, 0x07, 0x07...}
MOVW b+24(FP), BX
MOVQ BX, X0
VPSHUFB const_onezero<>+0(SB), X0, X0
loop:
// Load 2 128-bit chunks into XMM registers
VMOVDQU (CX), X1
VMOVDQU 16(CX), X2
// Compare all values in each XMM register to b. Each byte in the YMMs becomes 0x00 (mismatch) or 0xff (match)
VPCMPGTW X0, X1, X1
VPCMPGTW X0, X2, X2
// Drop every second byte from these registers
VPSHUFB const_drop_half<>+0(SB), X1, X1
VPSHUFB const_drop_half<>+0(SB), X2, X2
// Take one bit of each byte and pack it into an R32
VPMOVMSKB X1, BX
VPMOVMSKB X2, SI
// To get GreaterEquals semantics, we flipped the arguments of VPCMPGT and now invert the result
NOTB BL
NOTB SI
// Write the registers to dstMask
MOVB BL, (AX)
MOVB SI, 1(AX)
// Update our offsets into rows and dstMask
ADDQ $0x00000020, CX
ADDQ $0x00000002, AX
// Decrement loop counter
SUBQ $0x00000010, DX
JNZ loop
VZEROALL
RET
// func asmAVX2LesserEqualsUint16(dstMask []byte, b uint16, rows []uint16)
// Requires: AVX, AVX2, BMI2
TEXT ·asmAVX2LesserEqualsUint16(SB), NOSPLIT, $0-56
MOVQ dstMask_base+0(FP), AX
MOVQ rows_base+32(FP), CX
MOVQ rows_len+40(FP), DX
// Read param b into YMM register. If b is 0x07, YMM becomes {0x07, 0x07, 0x07...}
VPBROADCASTW b+24(FP), Y0
// Load the mask 01010101... which we will use with PEXT to drop half the bits
MOVL constants<>+0(SB), DI
loop:
// Load 2 256-bit chunks into YMM registers
VMOVDQU (CX), Y1
VMOVDQU 32(CX), Y2
// Compare all values in each YMM register to b. Each byte in the YMMs becomes 0x00 (mismatch) or 0xff (match)
VPCMPGTW Y1, Y0, Y1
VPCMPGTW Y2, Y0, Y2
// Take one bit of each byte and pack it into an R32
VPMOVMSKB Y1, BX
VPMOVMSKB Y2, SI
// Drop every second bit from these registers
PEXTL DI, BX, BX
PEXTL DI, SI, SI
// To get LesserEquals semantics, we flipped the arguments of VPCMPGT and now invert the result
NOTW BX
NOTW SI
// Write the registers to dstMask
MOVW BX, (AX)
MOVW SI, 2(AX)
// Update our offsets into rows and dstMask
ADDQ $0x00000040, CX
ADDQ $0x00000004, AX
// Decrement loop counter
SUBQ $0x00000020, DX
JNZ loop
VZEROALL
RET
// func asmAVXLesserEqualsUint16(dstMask []byte, b uint16, rows []uint16)
// Requires: AVX, SSE2
TEXT ·asmAVXLesserEqualsUint16(SB), NOSPLIT, $0-56
MOVQ dstMask_base+0(FP), AX
MOVQ rows_base+32(FP), CX
MOVQ rows_len+40(FP), DX
// Read param b into XMM register. If b is 0x07, YMM becomes {0x07, 0x07, 0x07...}
MOVW b+24(FP), BX
MOVQ BX, X0
VPSHUFB const_onezero<>+0(SB), X0, X0
loop:
// Load 2 128-bit chunks into XMM registers
VMOVDQU (CX), X1
VMOVDQU 16(CX), X2
// Compare all values in each XMM register to b. Each byte in the YMMs becomes 0x00 (mismatch) or 0xff (match)
VPCMPGTW X1, X0, X1
VPCMPGTW X2, X0, X2
// Drop every second byte from these registers
VPSHUFB const_drop_half<>+0(SB), X1, X1
VPSHUFB const_drop_half<>+0(SB), X2, X2
// Take one bit of each byte and pack it into an R32
VPMOVMSKB X1, BX
VPMOVMSKB X2, SI
// To get LesserEquals semantics, we flipped the arguments of VPCMPGT and now invert the result
NOTB BL
NOTB SI
// Write the registers to dstMask
MOVB BL, (AX)
MOVB SI, 1(AX)
// Update our offsets into rows and dstMask
ADDQ $0x00000020, CX
ADDQ $0x00000002, AX
// Decrement loop counter
SUBQ $0x00000010, DX
JNZ loop
VZEROALL
RET
// func asmAVX2EqualsUint32(dstMask []byte, b uint32, rows []uint32)
// Requires: AVX, AVX2, BMI2
TEXT ·asmAVX2EqualsUint32(SB), NOSPLIT, $0-56
MOVQ dstMask_base+0(FP), AX
MOVQ rows_base+32(FP), CX
MOVQ rows_len+40(FP), DX
// Read param b into YMM register. If b is 0x07, YMM becomes {0x07, 0x07, 0x07...}
VPBROADCASTD b+24(FP), Y0
// Load the mask 00010001... which we will use with PEXT to drop 75% of the bits
MOVL constants<>+4(SB), DI
loop:
// Load 2 256-bit chunks into YMM registers
VMOVDQU (CX), Y1
VMOVDQU 32(CX), Y2
// Compare all values in each YMM register to b. Each byte in the YMMs becomes 0x00 (mismatch) or 0xff (match)
VPCMPEQD Y1, Y0, Y1
VPCMPEQD Y2, Y0, Y2
// Take one bit of each byte and pack it into an R32
VPMOVMSKB Y1, BX
VPMOVMSKB Y2, SI
// Drop every second-fourth bit from these registers
PEXTL DI, BX, BX
PEXTL DI, SI, SI
// Write the registers to dstMask
MOVB BL, (AX)
MOVB SI, 1(AX)
// Update our offsets into rows and dstMask
ADDQ $0x00000040, CX
ADDQ $0x00000002, AX
// Decrement loop counter
SUBQ $0x00000010, DX
JNZ loop
VZEROALL
RET
// func asmAVXEqualsUint32(dstMask []byte, b uint32, rows []uint32)
// Requires: AVX, SSE2
TEXT ·asmAVXEqualsUint32(SB), NOSPLIT, $0-56
MOVQ dstMask_base+0(FP), AX
MOVQ rows_base+32(FP), CX
MOVQ rows_len+40(FP), DX
// Read param b into XMM register. If b is 0x07, YMM becomes {0x07, 0x07, 0x07...}
MOVL b+24(FP), BX
MOVQ BX, X0
VPSHUFB const_three_through_zero<>+0(SB), X0, X0
loop:
// Load 2 128-bit chunks into XMM registers
VMOVDQU (CX), X1
VMOVDQU 16(CX), X2
// Compare all values in each XMM register to b. Each byte in the YMMs becomes 0x00 (mismatch) or 0xff (match)
VPCMPEQD X1, X0, X1
VPCMPEQD X2, X0, X2
// Drop every second-fourth byte from these registers
VPSHUFB const_drop_threequarters<>+0(SB), X1, X1
VPSHUFB const_drop_threequarters<>+0(SB), X2, X2
// Take one bit of each byte and pack it into an R32
VPMOVMSKB X1, BX
VPMOVMSKB X2, SI
// Each register contains 4 bits, so we first combine pairs before writing them back
SHLB $0x04, SI
ORB SI, BL
MOVB BL, (AX)
// Update our offsets into rows and dstMask
ADDQ $0x00000020, CX
ADDQ $0x00000001, AX
// Decrement loop counter
SUBQ $0x00000008, DX
JNZ loop
VZEROALL
RET
// func asmAVX2EqualsFloat32(dstMask []byte, b float32, rows []float32)
// Requires: AVX, AVX2, BMI2
TEXT ·asmAVX2EqualsFloat32(SB), NOSPLIT, $0-56
MOVQ dstMask_base+0(FP), AX
MOVQ rows_base+32(FP), CX
MOVQ rows_len+40(FP), DX
// Read param b into YMM register. If b is 0x07, YMM becomes {0x07, 0x07, 0x07...}
VPBROADCASTD b+24(FP), Y0
// Load the mask 00010001... which we will use with PEXT to drop 75% of the bits
MOVL constants<>+4(SB), DI
loop:
// Load 2 256-bit chunks into YMM registers
VMOVDQU (CX), Y1
VMOVDQU 32(CX), Y2
// Compare all values in each YMM register to b. Each byte in the YMMs becomes 0x00 (mismatch) or 0xff (match)
VCMPPS $0x00, Y1, Y0, Y1