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https://github.com/golang/go
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66f03f79da
Change-Id: I79eb5e7d6bcb23f26d3a100e915efff6dae70391 Reviewed-on: https://go-review.googlesource.com/c/go/+/399061 Reviewed-by: Keith Randall <khr@golang.org> Reviewed-by: Keith Randall <khr@google.com> Reviewed-by: Cherry Mui <cherryyz@google.com>
106 lines
2.2 KiB
Go
106 lines
2.2 KiB
Go
// asmcheck
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// Copyright 2021 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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func andn64(x, y int64) int64 {
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// amd64/v3:"ANDNQ"
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return x &^ y
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}
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func andn32(x, y int32) int32 {
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// amd64/v3:"ANDNL"
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return x &^ y
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}
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func blsi64(x int64) int64 {
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// amd64/v3:"BLSIQ"
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return x & -x
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}
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func blsi32(x int32) int32 {
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// amd64/v3:"BLSIL"
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return x & -x
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}
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func blsmsk64(x int64) int64 {
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// amd64/v3:"BLSMSKQ"
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return x ^ (x - 1)
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}
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func blsmsk32(x int32) int32 {
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// amd64/v3:"BLSMSKL"
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return x ^ (x - 1)
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}
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func blsr64(x int64) int64 {
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// amd64/v3:"BLSRQ"
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return x & (x - 1)
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}
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func blsr32(x int32) int32 {
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// amd64/v3:"BLSRL"
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return x & (x - 1)
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}
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func sarx64(x, y int64) int64 {
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// amd64/v3:"SARXQ"
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return x >> y
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}
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func sarx32(x, y int32) int32 {
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// amd64/v3:"SARXL"
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return x >> y
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}
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func sarx64_load(x []int64, i int) int64 {
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// amd64/v3: `SARXQ\t[A-Z]+[0-9]*, \([A-Z]+[0-9]*\)\([A-Z]+[0-9]*\*8\), [A-Z]+[0-9]*`
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s := x[i] >> (i & 63)
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// amd64/v3: `SARXQ\t[A-Z]+[0-9]*, 8\([A-Z]+[0-9]*\)\([A-Z]+[0-9]*\*8\), [A-Z]+[0-9]*`
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s = x[i+1] >> (s & 63)
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return s
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}
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func sarx32_load(x []int32, i int) int32 {
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// amd64/v3: `SARXL\t[A-Z]+[0-9]*, \([A-Z]+[0-9]*\)\([A-Z]+[0-9]*\*4\), [A-Z]+[0-9]*`
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s := x[i] >> (i & 63)
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// amd64/v3: `SARXL\t[A-Z]+[0-9]*, 4\([A-Z]+[0-9]*\)\([A-Z]+[0-9]*\*4\), [A-Z]+[0-9]*`
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s = x[i+1] >> (s & 63)
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return s
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}
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func shlrx64(x, y uint64) uint64 {
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// amd64/v3:"SHRXQ"
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s := x >> y
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// amd64/v3:"SHLXQ"
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s = s << y
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return s
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}
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func shlrx32(x, y uint32) uint32 {
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// amd64/v3:"SHRXL"
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s := x >> y
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// amd64/v3:"SHLXL"
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s = s << y
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return s
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}
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func shlrx64_load(x []uint64, i int, s uint64) uint64 {
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// amd64/v3: `SHRXQ\t[A-Z]+[0-9]*, \([A-Z]+[0-9]*\)\([A-Z]+[0-9]*\*8\), [A-Z]+[0-9]*`
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s = x[i] >> i
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// amd64/v3: `SHLXQ\t[A-Z]+[0-9]*, 8\([A-Z]+[0-9]*\)\([A-Z]+[0-9]*\*8\), [A-Z]+[0-9]*`
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s = x[i+1] << s
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return s
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}
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func shlrx32_load(x []uint32, i int, s uint32) uint32 {
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// amd64/v3: `SHRXL\t[A-Z]+[0-9]*, \([A-Z]+[0-9]*\)\([A-Z]+[0-9]*\*4\), [A-Z]+[0-9]*`
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s = x[i] >> i
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// amd64/v3: `SHLXL\t[A-Z]+[0-9]*, 4\([A-Z]+[0-9]*\)\([A-Z]+[0-9]*\*4\), [A-Z]+[0-9]*`
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s = x[i+1] << s
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return s
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}
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