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// 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 isPowerOfTwo64(x int64) bool {
// amd64/v3:"BLSRQ",-"TESTQ",-"CALL"
return blsr64(x) == 0
}
func isPowerOfTwo32(x int32) bool {
// amd64/v3:"BLSRL",-"TESTL",-"CALL"
return blsr32(x) == 0
}
func isPowerOfTwoSelect64(x, a, b int64) int64 {
var r int64
// amd64/v3:"BLSRQ",-"TESTQ",-"CALL"
if isPowerOfTwo64(x) {
r = a
} else {
r = b
}
// amd64/v3:"CMOVQEQ",-"TESTQ",-"CALL"
return r * 2 // force return blocks joining
}
func isPowerOfTwoSelect32(x, a, b int32) int32 {
var r int32
// amd64/v3:"BLSRL",-"TESTL",-"CALL"
if isPowerOfTwo32(x) {
r = a
} else {
r = b
}
// amd64/v3:"CMOVLEQ",-"TESTL",-"CALL"
return r * 2 // force return blocks joining
}
func isPowerOfTwoBranch64(x int64, a func(bool), b func(string)) {
// amd64/v3:"BLSRQ",-"TESTQ",-"CALL"
if isPowerOfTwo64(x) {
a(true)
} else {
b("false")
}
}
func isPowerOfTwoBranch32(x int32, a func(bool), b func(string)) {
// amd64/v3:"BLSRL",-"TESTL",-"CALL"
if isPowerOfTwo32(x) {
a(true)
} else {
b("false")
}
}
func isNotPowerOfTwo64(x int64) bool {
// amd64/v3:"BLSRQ",-"TESTQ",-"CALL"
return blsr64(x) != 0
}
func isNotPowerOfTwo32(x int32) bool {
// amd64/v3:"BLSRL",-"TESTL",-"CALL"
return blsr32(x) != 0
}
func isNotPowerOfTwoSelect64(x, a, b int64) int64 {
var r int64
// amd64/v3:"BLSRQ",-"TESTQ",-"CALL"
if isNotPowerOfTwo64(x) {
r = a
} else {
r = b
}
// amd64/v3:"CMOVQNE",-"TESTQ",-"CALL"
return r * 2 // force return blocks joining
}
func isNotPowerOfTwoSelect32(x, a, b int32) int32 {
var r int32
// amd64/v3:"BLSRL",-"TESTL",-"CALL"
if isNotPowerOfTwo32(x) {
r = a
} else {
r = b
}
// amd64/v3:"CMOVLNE",-"TESTL",-"CALL"
return r * 2 // force return blocks joining
}
func isNotPowerOfTwoBranch64(x int64, a func(bool), b func(string)) {
// amd64/v3:"BLSRQ",-"TESTQ",-"CALL"
if isNotPowerOfTwo64(x) {
a(true)
} else {
b("false")
}
}
func isNotPowerOfTwoBranch32(x int32, a func(bool), b func(string)) {
// amd64/v3:"BLSRL",-"TESTL",-"CALL"
if isNotPowerOfTwo32(x) {
a(true)
} else {
b("false")
}
}
func sarx64(x, y int64) int64 {
// amd64/v3:"SARXQ"
return x >> y
}
func sarx32(x, y int32) int32 {
// amd64/v3:"SARXL"
return x >> y
}
func sarx64_load(x []int64, i int) int64 {
// amd64/v3: `SARXQ\t[A-Z]+[0-9]*, \([A-Z]+[0-9]*\)\([A-Z]+[0-9]*\*8\), [A-Z]+[0-9]*`
s := x[i] >> (i & 63)
// amd64/v3: `SARXQ\t[A-Z]+[0-9]*, 8\([A-Z]+[0-9]*\)\([A-Z]+[0-9]*\*8\), [A-Z]+[0-9]*`
s = x[i+1] >> (s & 63)
return s
}
func sarx32_load(x []int32, i int) int32 {
// amd64/v3: `SARXL\t[A-Z]+[0-9]*, \([A-Z]+[0-9]*\)\([A-Z]+[0-9]*\*4\), [A-Z]+[0-9]*`
s := x[i] >> (i & 63)
// amd64/v3: `SARXL\t[A-Z]+[0-9]*, 4\([A-Z]+[0-9]*\)\([A-Z]+[0-9]*\*4\), [A-Z]+[0-9]*`
s = x[i+1] >> (s & 63)
return s
}
func shlrx64(x, y uint64) uint64 {
// amd64/v3:"SHRXQ"
s := x >> y
// amd64/v3:"SHLXQ"
s = s << y
return s
}
func shlrx32(x, y uint32) uint32 {
// amd64/v3:"SHRXL"
s := x >> y
// amd64/v3:"SHLXL"
s = s << y
return s
}
func shlrx64_load(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_load(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
}
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