| // asmcheck |
| |
| // Copyright 2021 The Go Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style |
| // license that can be found in the LICENSE file. |
| |
| package codegen |
| |
| func andn64(x, y int64) int64 { |
| // amd64/v3:"ANDNQ" |
| return x &^ y |
| } |
| |
| func andn32(x, y int32) int32 { |
| // amd64/v3:"ANDNL" |
| return x &^ y |
| } |
| |
| func blsi64(x int64) int64 { |
| // amd64/v3:"BLSIQ" |
| return x & -x |
| } |
| |
| func blsi32(x int32) int32 { |
| // amd64/v3:"BLSIL" |
| return x & -x |
| } |
| |
| func blsmsk64(x int64) int64 { |
| // amd64/v3:"BLSMSKQ" |
| return x ^ (x - 1) |
| } |
| |
| func blsmsk32(x int32) int32 { |
| // amd64/v3:"BLSMSKL" |
| return x ^ (x - 1) |
| } |
| |
| func blsr64(x int64) int64 { |
| // amd64/v3:"BLSRQ" |
| return x & (x - 1) |
| } |
| |
| func blsr32(x int32) int32 { |
| // amd64/v3:"BLSRL" |
| return x & (x - 1) |
| } |
| |
| func shlrx64(x []uint64, i int, s uint64) uint64 { |
| // amd64/v3: `SHRXQ\t[A-Z]+[0-9]*, \([A-Z]+[0-9]*\)\([A-Z]+[0-9]*\*8\), [A-Z]+[0-9]*` |
| s = x[i] >> i |
| // amd64/v3: `SHLXQ\t[A-Z]+[0-9]*, 8\([A-Z]+[0-9]*\)\([A-Z]+[0-9]*\*8\), [A-Z]+[0-9]*` |
| s = x[i+1] << s |
| return s |
| } |
| |
| func shlrx32(x []uint32, i int, s uint32) uint32 { |
| // amd64/v3: `SHRXL\t[A-Z]+[0-9]*, \([A-Z]+[0-9]*\)\([A-Z]+[0-9]*\*4\), [A-Z]+[0-9]*` |
| s = x[i] >> i |
| // amd64/v3: `SHLXL\t[A-Z]+[0-9]*, 4\([A-Z]+[0-9]*\)\([A-Z]+[0-9]*\*4\), [A-Z]+[0-9]*` |
| s = x[i+1] << s |
| return s |
| } |
