986f076276
Add a new generic container registry client via a new `container` package. Use this to create a command line utility as well as a new upload target for container registries. The code uses the github.com/containers/* project and packages to interact with container registires that is also used by skopeo, podman et al. One if the dependencies is `proglottis/gpgme` that is using cgo to bind libgpgme, so we have to add the corresponding devel package to the BuildRequires as well as installing it on CI. Checks will follow later via an integration test.
506 lines
11 KiB
ArmAsm
506 lines
11 KiB
ArmAsm
// +build !appengine
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// +build gc
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// +build !noasm
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#include "textflag.h"
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#include "funcdata.h"
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#include "go_asm.h"
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#ifdef GOAMD64_v4
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#ifndef GOAMD64_v3
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#define GOAMD64_v3
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#endif
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#endif
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#define bufoff 256 // see decompress.go, we're using [4][256]byte table
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// func decompress4x_main_loop_x86(pbr0, pbr1, pbr2, pbr3 *bitReaderShifted,
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// peekBits uint8, buf *byte, tbl *dEntrySingle) (int, bool)
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TEXT ·decompress4x_main_loop_x86(SB), NOSPLIT, $8
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#define off R8
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#define buffer DI
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#define table SI
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#define br_bits_read R9
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#define br_value R10
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#define br_offset R11
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#define peek_bits R12
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#define exhausted DX
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#define br0 R13
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#define br1 R14
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#define br2 R15
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#define br3 BP
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MOVQ BP, 0(SP)
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XORQ exhausted, exhausted // exhausted = false
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XORQ off, off // off = 0
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MOVBQZX peekBits+32(FP), peek_bits
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MOVQ buf+40(FP), buffer
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MOVQ tbl+48(FP), table
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MOVQ pbr0+0(FP), br0
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MOVQ pbr1+8(FP), br1
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MOVQ pbr2+16(FP), br2
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MOVQ pbr3+24(FP), br3
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main_loop:
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// const stream = 0
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// br0.fillFast()
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MOVBQZX bitReaderShifted_bitsRead(br0), br_bits_read
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MOVQ bitReaderShifted_value(br0), br_value
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MOVQ bitReaderShifted_off(br0), br_offset
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// We must have at least 2 * max tablelog left
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CMPQ br_bits_read, $64-22
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JBE skip_fill0
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SUBQ $32, br_bits_read // b.bitsRead -= 32
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SUBQ $4, br_offset // b.off -= 4
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// v := b.in[b.off-4 : b.off]
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// v = v[:4]
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// low := (uint32(v[0])) | (uint32(v[1]) << 8) | (uint32(v[2]) << 16) | (uint32(v[3]) << 24)
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MOVQ bitReaderShifted_in(br0), AX
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// b.value |= uint64(low) << (b.bitsRead & 63)
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#ifdef GOAMD64_v3
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SHLXQ br_bits_read, 0(br_offset)(AX*1), AX // AX = uint32(b.in[b.off:b.off+4]) << (b.bitsRead & 63)
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#else
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MOVL 0(br_offset)(AX*1), AX // AX = uint32(b.in[b.off:b.off+4])
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MOVQ br_bits_read, CX
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SHLQ CL, AX
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#endif
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ORQ AX, br_value
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// exhausted = exhausted || (br0.off < 4)
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CMPQ br_offset, $4
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SETLT DL
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ORB DL, DH
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// }
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skip_fill0:
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// val0 := br0.peekTopBits(peekBits)
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#ifdef GOAMD64_v3
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SHRXQ peek_bits, br_value, AX // AX = (value >> peek_bits) & mask
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#else
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MOVQ br_value, AX
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MOVQ peek_bits, CX
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SHRQ CL, AX // AX = (value >> peek_bits) & mask
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#endif
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// v0 := table[val0&mask]
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MOVW 0(table)(AX*2), AX // AX - v0
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// br0.advance(uint8(v0.entry))
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MOVB AH, BL // BL = uint8(v0.entry >> 8)
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#ifdef GOAMD64_v3
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MOVBQZX AL, CX
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SHLXQ AX, br_value, br_value // value <<= n
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#else
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MOVBQZX AL, CX
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SHLQ CL, br_value // value <<= n
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#endif
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ADDQ CX, br_bits_read // bits_read += n
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#ifdef GOAMD64_v3
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SHRXQ peek_bits, br_value, AX // AX = (value >> peek_bits) & mask
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#else
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// val1 := br0.peekTopBits(peekBits)
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MOVQ peek_bits, CX
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MOVQ br_value, AX
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SHRQ CL, AX // AX = (value >> peek_bits) & mask
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#endif
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// v1 := table[val1&mask]
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MOVW 0(table)(AX*2), AX // AX - v1
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// br0.advance(uint8(v1.entry))
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MOVB AH, BH // BH = uint8(v1.entry >> 8)
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#ifdef GOAMD64_v3
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MOVBQZX AL, CX
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SHLXQ AX, br_value, br_value // value <<= n
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#else
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MOVBQZX AL, CX
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SHLQ CL, br_value // value <<= n
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#endif
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ADDQ CX, br_bits_read // bits_read += n
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// these two writes get coalesced
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// buf[stream][off] = uint8(v0.entry >> 8)
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// buf[stream][off+1] = uint8(v1.entry >> 8)
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MOVW BX, 0(buffer)(off*1)
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// update the bitrader reader structure
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MOVB br_bits_read, bitReaderShifted_bitsRead(br0)
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MOVQ br_value, bitReaderShifted_value(br0)
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MOVQ br_offset, bitReaderShifted_off(br0)
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// const stream = 1
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// br1.fillFast()
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MOVBQZX bitReaderShifted_bitsRead(br1), br_bits_read
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MOVQ bitReaderShifted_value(br1), br_value
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MOVQ bitReaderShifted_off(br1), br_offset
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// We must have at least 2 * max tablelog left
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CMPQ br_bits_read, $64-22
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JBE skip_fill1
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SUBQ $32, br_bits_read // b.bitsRead -= 32
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SUBQ $4, br_offset // b.off -= 4
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// v := b.in[b.off-4 : b.off]
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// v = v[:4]
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// low := (uint32(v[0])) | (uint32(v[1]) << 8) | (uint32(v[2]) << 16) | (uint32(v[3]) << 24)
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MOVQ bitReaderShifted_in(br1), AX
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// b.value |= uint64(low) << (b.bitsRead & 63)
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#ifdef GOAMD64_v3
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SHLXQ br_bits_read, 0(br_offset)(AX*1), AX // AX = uint32(b.in[b.off:b.off+4]) << (b.bitsRead & 63)
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#else
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MOVL 0(br_offset)(AX*1), AX // AX = uint32(b.in[b.off:b.off+4])
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MOVQ br_bits_read, CX
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SHLQ CL, AX
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#endif
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ORQ AX, br_value
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// exhausted = exhausted || (br1.off < 4)
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CMPQ br_offset, $4
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SETLT DL
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ORB DL, DH
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// }
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skip_fill1:
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// val0 := br1.peekTopBits(peekBits)
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#ifdef GOAMD64_v3
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SHRXQ peek_bits, br_value, AX // AX = (value >> peek_bits) & mask
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#else
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MOVQ br_value, AX
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MOVQ peek_bits, CX
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SHRQ CL, AX // AX = (value >> peek_bits) & mask
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#endif
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// v0 := table[val0&mask]
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MOVW 0(table)(AX*2), AX // AX - v0
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// br1.advance(uint8(v0.entry))
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MOVB AH, BL // BL = uint8(v0.entry >> 8)
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#ifdef GOAMD64_v3
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MOVBQZX AL, CX
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SHLXQ AX, br_value, br_value // value <<= n
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#else
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MOVBQZX AL, CX
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SHLQ CL, br_value // value <<= n
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#endif
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ADDQ CX, br_bits_read // bits_read += n
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#ifdef GOAMD64_v3
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SHRXQ peek_bits, br_value, AX // AX = (value >> peek_bits) & mask
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#else
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// val1 := br1.peekTopBits(peekBits)
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MOVQ peek_bits, CX
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MOVQ br_value, AX
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SHRQ CL, AX // AX = (value >> peek_bits) & mask
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#endif
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// v1 := table[val1&mask]
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MOVW 0(table)(AX*2), AX // AX - v1
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// br1.advance(uint8(v1.entry))
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MOVB AH, BH // BH = uint8(v1.entry >> 8)
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#ifdef GOAMD64_v3
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MOVBQZX AL, CX
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SHLXQ AX, br_value, br_value // value <<= n
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#else
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MOVBQZX AL, CX
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SHLQ CL, br_value // value <<= n
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#endif
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ADDQ CX, br_bits_read // bits_read += n
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// these two writes get coalesced
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// buf[stream][off] = uint8(v0.entry >> 8)
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// buf[stream][off+1] = uint8(v1.entry >> 8)
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MOVW BX, 256(buffer)(off*1)
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// update the bitrader reader structure
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MOVB br_bits_read, bitReaderShifted_bitsRead(br1)
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MOVQ br_value, bitReaderShifted_value(br1)
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MOVQ br_offset, bitReaderShifted_off(br1)
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// const stream = 2
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// br2.fillFast()
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MOVBQZX bitReaderShifted_bitsRead(br2), br_bits_read
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MOVQ bitReaderShifted_value(br2), br_value
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MOVQ bitReaderShifted_off(br2), br_offset
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// We must have at least 2 * max tablelog left
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CMPQ br_bits_read, $64-22
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JBE skip_fill2
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SUBQ $32, br_bits_read // b.bitsRead -= 32
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SUBQ $4, br_offset // b.off -= 4
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// v := b.in[b.off-4 : b.off]
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// v = v[:4]
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// low := (uint32(v[0])) | (uint32(v[1]) << 8) | (uint32(v[2]) << 16) | (uint32(v[3]) << 24)
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MOVQ bitReaderShifted_in(br2), AX
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// b.value |= uint64(low) << (b.bitsRead & 63)
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#ifdef GOAMD64_v3
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SHLXQ br_bits_read, 0(br_offset)(AX*1), AX // AX = uint32(b.in[b.off:b.off+4]) << (b.bitsRead & 63)
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#else
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MOVL 0(br_offset)(AX*1), AX // AX = uint32(b.in[b.off:b.off+4])
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MOVQ br_bits_read, CX
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SHLQ CL, AX
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#endif
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ORQ AX, br_value
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// exhausted = exhausted || (br2.off < 4)
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CMPQ br_offset, $4
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SETLT DL
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ORB DL, DH
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// }
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skip_fill2:
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// val0 := br2.peekTopBits(peekBits)
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#ifdef GOAMD64_v3
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SHRXQ peek_bits, br_value, AX // AX = (value >> peek_bits) & mask
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#else
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MOVQ br_value, AX
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MOVQ peek_bits, CX
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SHRQ CL, AX // AX = (value >> peek_bits) & mask
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#endif
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// v0 := table[val0&mask]
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MOVW 0(table)(AX*2), AX // AX - v0
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// br2.advance(uint8(v0.entry))
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MOVB AH, BL // BL = uint8(v0.entry >> 8)
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#ifdef GOAMD64_v3
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MOVBQZX AL, CX
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SHLXQ AX, br_value, br_value // value <<= n
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#else
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MOVBQZX AL, CX
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SHLQ CL, br_value // value <<= n
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#endif
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ADDQ CX, br_bits_read // bits_read += n
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#ifdef GOAMD64_v3
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SHRXQ peek_bits, br_value, AX // AX = (value >> peek_bits) & mask
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#else
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// val1 := br2.peekTopBits(peekBits)
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MOVQ peek_bits, CX
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MOVQ br_value, AX
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SHRQ CL, AX // AX = (value >> peek_bits) & mask
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#endif
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// v1 := table[val1&mask]
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MOVW 0(table)(AX*2), AX // AX - v1
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// br2.advance(uint8(v1.entry))
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MOVB AH, BH // BH = uint8(v1.entry >> 8)
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#ifdef GOAMD64_v3
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MOVBQZX AL, CX
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SHLXQ AX, br_value, br_value // value <<= n
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#else
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MOVBQZX AL, CX
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SHLQ CL, br_value // value <<= n
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#endif
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ADDQ CX, br_bits_read // bits_read += n
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// these two writes get coalesced
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// buf[stream][off] = uint8(v0.entry >> 8)
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// buf[stream][off+1] = uint8(v1.entry >> 8)
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MOVW BX, 512(buffer)(off*1)
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// update the bitrader reader structure
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MOVB br_bits_read, bitReaderShifted_bitsRead(br2)
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MOVQ br_value, bitReaderShifted_value(br2)
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MOVQ br_offset, bitReaderShifted_off(br2)
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// const stream = 3
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// br3.fillFast()
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MOVBQZX bitReaderShifted_bitsRead(br3), br_bits_read
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MOVQ bitReaderShifted_value(br3), br_value
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MOVQ bitReaderShifted_off(br3), br_offset
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// We must have at least 2 * max tablelog left
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CMPQ br_bits_read, $64-22
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JBE skip_fill3
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SUBQ $32, br_bits_read // b.bitsRead -= 32
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SUBQ $4, br_offset // b.off -= 4
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// v := b.in[b.off-4 : b.off]
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// v = v[:4]
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// low := (uint32(v[0])) | (uint32(v[1]) << 8) | (uint32(v[2]) << 16) | (uint32(v[3]) << 24)
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MOVQ bitReaderShifted_in(br3), AX
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// b.value |= uint64(low) << (b.bitsRead & 63)
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#ifdef GOAMD64_v3
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SHLXQ br_bits_read, 0(br_offset)(AX*1), AX // AX = uint32(b.in[b.off:b.off+4]) << (b.bitsRead & 63)
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#else
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MOVL 0(br_offset)(AX*1), AX // AX = uint32(b.in[b.off:b.off+4])
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MOVQ br_bits_read, CX
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SHLQ CL, AX
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#endif
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ORQ AX, br_value
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// exhausted = exhausted || (br3.off < 4)
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CMPQ br_offset, $4
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SETLT DL
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ORB DL, DH
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// }
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skip_fill3:
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// val0 := br3.peekTopBits(peekBits)
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#ifdef GOAMD64_v3
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SHRXQ peek_bits, br_value, AX // AX = (value >> peek_bits) & mask
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#else
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MOVQ br_value, AX
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MOVQ peek_bits, CX
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SHRQ CL, AX // AX = (value >> peek_bits) & mask
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#endif
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// v0 := table[val0&mask]
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MOVW 0(table)(AX*2), AX // AX - v0
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// br3.advance(uint8(v0.entry))
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MOVB AH, BL // BL = uint8(v0.entry >> 8)
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#ifdef GOAMD64_v3
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MOVBQZX AL, CX
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SHLXQ AX, br_value, br_value // value <<= n
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#else
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MOVBQZX AL, CX
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SHLQ CL, br_value // value <<= n
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#endif
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ADDQ CX, br_bits_read // bits_read += n
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#ifdef GOAMD64_v3
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SHRXQ peek_bits, br_value, AX // AX = (value >> peek_bits) & mask
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#else
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// val1 := br3.peekTopBits(peekBits)
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MOVQ peek_bits, CX
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MOVQ br_value, AX
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SHRQ CL, AX // AX = (value >> peek_bits) & mask
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#endif
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// v1 := table[val1&mask]
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MOVW 0(table)(AX*2), AX // AX - v1
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// br3.advance(uint8(v1.entry))
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MOVB AH, BH // BH = uint8(v1.entry >> 8)
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#ifdef GOAMD64_v3
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MOVBQZX AL, CX
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SHLXQ AX, br_value, br_value // value <<= n
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#else
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MOVBQZX AL, CX
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SHLQ CL, br_value // value <<= n
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#endif
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ADDQ CX, br_bits_read // bits_read += n
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// these two writes get coalesced
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// buf[stream][off] = uint8(v0.entry >> 8)
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// buf[stream][off+1] = uint8(v1.entry >> 8)
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MOVW BX, 768(buffer)(off*1)
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// update the bitrader reader structure
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MOVB br_bits_read, bitReaderShifted_bitsRead(br3)
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MOVQ br_value, bitReaderShifted_value(br3)
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MOVQ br_offset, bitReaderShifted_off(br3)
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ADDQ $2, off // off += 2
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TESTB DH, DH // any br[i].ofs < 4?
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JNZ end
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CMPQ off, $bufoff
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JL main_loop
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end:
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MOVQ 0(SP), BP
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MOVB off, ret+56(FP)
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RET
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#undef off
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#undef buffer
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#undef table
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#undef br_bits_read
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#undef br_value
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#undef br_offset
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#undef peek_bits
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#undef exhausted
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#undef br0
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#undef br1
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#undef br2
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#undef br3
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