| // Copyright 2025 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 scan | |
| import "internal/runtime/gc" | |
| // ExpandAVX512 expands each bit in packed into f consecutive bits in unpacked, | |
| // where f is the word size of objects in sizeClass. | |
| // | |
| // This is a testing entrypoint to the expanders used by scanSpanPacked*. | |
| // | |
| //go:noescape | |
| func ExpandAVX512(sizeClass int, packed *gc.ObjMask, unpacked *gc.PtrMask) | |
| // gcExpandersAVX512 is the PCs of expander functions. These cannot be called directly | |
| // as they don't follow the Go ABI, but you can use this to check if a given | |
| // expander PC is 0. | |
| // | |
| // It is defined in assembly. | |
| var gcExpandersAVX512 [len(gc.SizeClassToSize)]uintptr | |