| Linux in-mum-web1499.main-hosting.eu 5.14.0-503.40.1.el9_5.x86_64 #1 SMP PREEMPT_DYNAMIC Mon May 5 06:06:04 EDT 2025 x86_64 Path : /opt/golang/1.22.0/src/cmd/compile/internal/ir/ |
| Current File : //opt/golang/1.22.0/src/cmd/compile/internal/ir/bitset.go |
// Copyright 2017 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 ir
type bitset8 uint8
func (f *bitset8) set(mask uint8, b bool) {
if b {
*(*uint8)(f) |= mask
} else {
*(*uint8)(f) &^= mask
}
}
func (f bitset8) get2(shift uint8) uint8 {
return uint8(f>>shift) & 3
}
// set2 sets two bits in f using the bottom two bits of b.
func (f *bitset8) set2(shift uint8, b uint8) {
// Clear old bits.
*(*uint8)(f) &^= 3 << shift
// Set new bits.
*(*uint8)(f) |= uint8(b&3) << shift
}
type bitset16 uint16
func (f *bitset16) set(mask uint16, b bool) {
if b {
*(*uint16)(f) |= mask
} else {
*(*uint16)(f) &^= mask
}
}