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3e31eb6b84
Finish porting arm64 slice zeroing codegen tests; delete them from asm_test. Change-Id: Id2532df8ba1c340fa662a6b5238daa3de30548be Reviewed-on: https://go-review.googlesource.com/105136 Run-TryBot: Alberto Donizetti <alb.donizetti@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Giovanni Bajo <rasky@develer.com>
259 lines
6.2 KiB
Go
259 lines
6.2 KiB
Go
// asmcheck
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// Copyright 2018 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package codegen
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import "encoding/binary"
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var sink64 uint64
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var sink32 uint32
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var sink16 uint16
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// ------------- //
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// Loading //
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// ------------- //
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func load_le64(b []byte) {
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// amd64:`MOVQ\s\(.*\),`
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// s390x:`MOVDBR\s\(.*\),`
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// arm64:`MOVD\s\(R[0-9]+\),`
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// ppc64le:`MOVD\s`,-`MOV[BHW]Z`
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sink64 = binary.LittleEndian.Uint64(b)
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}
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func load_le64_idx(b []byte, idx int) {
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// amd64:`MOVQ\s\(.*\)\(.*\*1\),`
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// s390x:`MOVDBR\s\(.*\)\(.*\*1\),`
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// arm64:`MOVD\s\(R[0-9]+\),`
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// ppc64le:`MOVD\s`,-`MOV[BHW]Z\s`
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sink64 = binary.LittleEndian.Uint64(b[idx:])
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}
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func load_le32(b []byte) {
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// amd64:`MOVL\s\(.*\),` 386:`MOVL\s\(.*\),`
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// s390x:`MOVWBR\s\(.*\),`
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// arm64:`MOVWU\s\(R[0-9]+\),`
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// ppc64le:`MOVWZ\s`
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sink32 = binary.LittleEndian.Uint32(b)
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}
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func load_le32_idx(b []byte, idx int) {
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// amd64:`MOVL\s\(.*\)\(.*\*1\),` 386:`MOVL\s\(.*\)\(.*\*1\),`
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// s390x:`MOVWBR\s\(.*\)\(.*\*1\),`
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// arm64:`MOVWU\s\(R[0-9]+\),`
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// ppc64le:`MOVWZ\s`
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sink32 = binary.LittleEndian.Uint32(b[idx:])
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}
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func load_le16(b []byte) {
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// amd64:`MOVWLZX\s\(.*\),`
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// ppc64le:`MOVHZ\s`
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sink16 = binary.LittleEndian.Uint16(b)
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}
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func load_le16_idx(b []byte, idx int) {
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// amd64:`MOVWLZX\s\(.*\),`
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// ppc64le:`MOVHZ\s`
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sink16 = binary.LittleEndian.Uint16(b[idx:])
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}
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func load_be64(b []byte) {
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// amd64:`BSWAPQ`
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// s390x:`MOVD\s\(.*\),`
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// arm64:`REV`
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sink64 = binary.BigEndian.Uint64(b)
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}
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func load_be64_idx(b []byte, idx int) {
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// amd64:`BSWAPQ`
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// s390x:`MOVD\s\(.*\)\(.*\*1\),`
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// arm64:`REV`
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sink64 = binary.BigEndian.Uint64(b[idx:])
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}
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func load_be32(b []byte) {
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// amd64:`BSWAPL`
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// s390x:`MOVWZ\s\(.*\),`
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// arm64:`REVW`
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sink32 = binary.BigEndian.Uint32(b)
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}
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func load_be32_idx(b []byte, idx int) {
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// amd64:`BSWAPL`
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// s390x:`MOVWZ\s\(.*\)\(.*\*1\),`
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// arm64:`REVW`
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sink32 = binary.BigEndian.Uint32(b[idx:])
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}
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func load_be16(b []byte) {
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// amd64:`ROLW\s\$8`
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sink16 = binary.BigEndian.Uint16(b)
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}
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func load_be16_idx(b []byte, idx int) {
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// amd64:`ROLW\s\$8`
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sink16 = binary.BigEndian.Uint16(b[idx:])
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}
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// ------------- //
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// Storing //
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// ------------- //
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func store_le64(b []byte) {
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// amd64:`MOVQ\s.*\(.*\)$`,-`SHR.`
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// arm64:`MOVD`,-`MOV[WBH]`
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// ppc64le:`MOVD\s`,-`MOV[BHW]\s`
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binary.LittleEndian.PutUint64(b, sink64)
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}
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func store_le64_idx(b []byte, idx int) {
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// amd64:`MOVQ\s.*\(.*\)\(.*\*1\)$`,-`SHR.`
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// arm64:`MOVD`,-`MOV[WBH]`
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// ppc64le:`MOVD\s`,-`MOV[BHW]\s`
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binary.LittleEndian.PutUint64(b[idx:], sink64)
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}
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func store_le32(b []byte) {
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// amd64:`MOVL\s`
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// arm64:`MOVW`,-`MOV[BH]`
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// ppc64le:`MOVW\s`
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binary.LittleEndian.PutUint32(b, sink32)
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}
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func store_le32_idx(b []byte, idx int) {
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// amd64:`MOVL\s`
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// arm64:`MOVW`,-`MOV[BH]`
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// ppc64le:`MOVW\s`
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binary.LittleEndian.PutUint32(b[idx:], sink32)
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}
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func store_le16(b []byte) {
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// amd64:`MOVW\s`
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// arm64:`MOVH`,-`MOVB`
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// ppc64le(DISABLED):`MOVH\s`
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binary.LittleEndian.PutUint16(b, sink16)
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}
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func store_le16_idx(b []byte, idx int) {
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// amd64:`MOVW\s`
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// arm64:`MOVH`,-`MOVB`
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// ppc64le(DISABLED):`MOVH\s`
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binary.LittleEndian.PutUint16(b[idx:], sink16)
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}
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func store_be64(b []byte) {
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// amd64:`BSWAPQ`,-`SHR.`
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// arm64:`MOVD`,`REV`,-`MOV[WBH]`
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binary.BigEndian.PutUint64(b, sink64)
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}
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func store_be64_idx(b []byte, idx int) {
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// amd64:`BSWAPQ`,-`SHR.`
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// arm64:`MOVD`,`REV`,-`MOV[WBH]`
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binary.BigEndian.PutUint64(b[idx:], sink64)
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}
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func store_be32(b []byte) {
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// amd64:`BSWAPL`,-`SHR.`
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// arm64:`MOVW`,`REVW`,-`MOV[BH]`
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binary.BigEndian.PutUint32(b, sink32)
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}
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func store_be32_idx(b []byte, idx int) {
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// amd64:`BSWAPL`,-`SHR.`
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// arm64:`MOVW`,`REVW`,-`MOV[BH]`
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binary.BigEndian.PutUint32(b[idx:], sink32)
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}
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func store_be16(b []byte) {
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// amd64:`ROLW\s\$8`,-`SHR.`
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// arm64:`MOVH`,`REV16W`,-`MOVB`
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binary.BigEndian.PutUint16(b, sink16)
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}
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func store_be16_idx(b []byte, idx int) {
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// amd64:`ROLW\s\$8`,-`SHR.`
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// arm64:`MOVH`,`REV16W`,-`MOVB`
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binary.BigEndian.PutUint16(b[idx:], sink16)
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}
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// ------------- //
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// Zeroing //
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// ------------- //
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// Check that zero stores are combined into larger stores
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func zero_byte_2(b1, b2 []byte) {
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// bounds checks to guarantee safety of writes below
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_, _ = b1[1], b2[1]
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b1[0], b1[1] = 0, 0 // arm64:"MOVH\tZR",-"MOVB"
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b2[1], b2[0] = 0, 0 // arm64:"MOVH\tZR",-"MOVB"
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}
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func zero_byte_4(b1, b2 []byte) {
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_, _ = b1[3], b2[3]
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b1[0], b1[1], b1[2], b1[3] = 0, 0, 0, 0 // arm64:"MOVW\tZR",-"MOVB",-"MOVH"
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b2[2], b2[3], b2[1], b2[0] = 0, 0, 0, 0 // arm64:"MOVW\tZR",-"MOVB",-"MOVH"
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}
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func zero_byte_8(b []byte) {
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_ = b[7]
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b[0], b[1], b[2], b[3] = 0, 0, 0, 0
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b[4], b[5], b[6], b[7] = 0, 0, 0, 0 // arm64:"MOVD\tZR",-"MOVB",-"MOVH",-"MOVW"
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}
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func zero_byte_16(b []byte) {
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_ = b[15]
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b[0], b[1], b[2], b[3] = 0, 0, 0, 0
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b[4], b[5], b[6], b[7] = 0, 0, 0, 0
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b[8], b[9], b[10], b[11] = 0, 0, 0, 0
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b[12], b[13], b[14], b[15] = 0, 0, 0, 0 // arm64:"STP",-"MOVB",-"MOVH",-"MOVW"
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}
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func zero_byte_30(a *[30]byte) {
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*a = [30]byte{} // arm64:"STP",-"MOVB",-"MOVH",-"MOVW"
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}
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func zero_byte_39(a *[39]byte) {
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*a = [39]byte{} // arm64:"MOVD",-"MOVB",-"MOVH",-"MOVW"
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}
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func zero_uint16_2(h1, h2 []uint16) {
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_, _ = h1[1], h2[1]
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h1[0], h1[1] = 0, 0 // arm64:"MOVW\tZR",-"MOVB",-"MOVH"
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h2[1], h2[0] = 0, 0 // arm64:"MOVW\tZR",-"MOVB",-"MOVH"
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}
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func zero_uint16_4(h1, h2 []uint16) {
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_, _ = h1[3], h2[3]
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h1[0], h1[1], h1[2], h1[3] = 0, 0, 0, 0 // arm64:"MOVD\tZR",-"MOVB",-"MOVH",-"MOVW"
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h2[2], h2[3], h2[1], h2[0] = 0, 0, 0, 0 // arm64:"MOVD\tZR",-"MOVB",-"MOVH",-"MOVW"
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}
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func zero_uint16_8(h []uint16) {
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_ = h[7]
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h[0], h[1], h[2], h[3] = 0, 0, 0, 0
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h[4], h[5], h[6], h[7] = 0, 0, 0, 0 // arm64:"STP",-"MOVB",-"MOVH"
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}
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func zero_uint32_2(w1, w2 []uint32) {
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_, _ = w1[1], w2[1]
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w1[0], w1[1] = 0, 0 // arm64:"MOVD\tZR",-"MOVB",-"MOVH",-"MOVW"
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w2[1], w2[0] = 0, 0 // arm64:"MOVD\tZR",-"MOVB",-"MOVH",-"MOVW"
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}
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func zero_uint32_4(w1, w2 []uint32) {
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_, _ = w1[3], w2[3]
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w1[0], w1[1], w1[2], w1[3] = 0, 0, 0, 0 // arm64:"STP",-"MOVB",-"MOVH"
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w2[2], w2[3], w2[1], w2[0] = 0, 0, 0, 0 // arm64:"STP",-"MOVB",-"MOVH"
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}
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func zero_uint64_2(d1, d2 []uint64) {
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_, _ = d1[1], d2[1]
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d1[0], d1[1] = 0, 0 // arm64:"STP",-"MOVB",-"MOVH"
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d2[1], d2[0] = 0, 0 // arm64:"STP",-"MOVB",-"MOVH"
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}
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