| // 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 |
