mirror
/
go
mirror of https://github.com/golang/go.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

reflect: remove typedmemmovepartial as it is unused 

It appears to have been unused since https://go.dev/cl/298670
in April 2021, as that change removed its only use.
It is always in the git history if it is needed again.

Change-Id: Ie55d059c102dfaa75bd253e09d48a4b30f45e941
Reviewed-on: https://go-review.googlesource.com/c/go/+/483136
Reviewed-by: Michael Pratt <mpratt@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Daniel Martí <mvdan@mvdan.cc>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Auto-Submit: Michael Pratt <mpratt@google.com>
This commit is contained in:
Daniel Martí 2023-04-07 18:41:10 +01:00 committed by Gopher Robot
parent 65ea4c5021
commit df6396fc22
2 changed files with 0 additions and 29 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
src/reflect/value.go
View File

@ -3832,12 +3832,6 @@ func memmove(dst, src unsafe.Pointer, size uintptr)
//go:noescape
func typedmemmove(t *rtype, dst, src unsafe.Pointer)
// typedmemmovepartial is like typedmemmove but assumes that
// dst and src point off bytes into the value and only copies size bytes.
//
//go:noescape
func typedmemmovepartial(t *rtype, dst, src unsafe.Pointer, off, size uintptr)
// typedmemclr zeros the value at ptr of type t.
//
//go:noescape

23
src/runtime/mbarrier.go
View File

@ -217,29 +217,6 @@ func reflectlite_typedmemmove(typ *_type, dst, src unsafe.Pointer) {
reflect_typedmemmove(typ, dst, src)
}
// reflect_typedmemmovepartial is like typedmemmove but assumes that
// dst and src point off bytes into the value and only copies size bytes.
// off must be a multiple of goarch.PtrSize.
//
//go:linkname reflect_typedmemmovepartial reflect.typedmemmovepartial
func reflect_typedmemmovepartial(typ *_type, dst, src unsafe.Pointer, off, size uintptr) {
if writeBarrier.needed && typ.ptrdata > off && size >= goarch.PtrSize {
if off&(goarch.PtrSize-1) != 0 {
panic("reflect: internal error: misaligned offset")
}
pwsize := alignDown(size, goarch.PtrSize)
if poff := typ.ptrdata - off; pwsize > poff {
pwsize = poff
}
bulkBarrierPreWrite(uintptr(dst), uintptr(src), pwsize)
}
memmove(dst, src, size)
if goexperiment.CgoCheck2 {
cgoCheckMemmove2(typ, dst, src, off, size)
}
}
// reflectcallmove is invoked by reflectcall to copy the return values
// out of the stack and into the heap, invoking the necessary write
// barriers. dst, src, and size describe the return value area to