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runtime: remove unused cgoCheckUsingType function

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The only calls to it were removed in CL 616255.

Change-Id: I6c6b01e2e98d54300b6323fd74ccc45fa1d433dd
Reviewed-on: https://go-review.googlesource.com/c/go/+/714820
Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Reviewed-by: David Chase <drchase@google.com>
Auto-Submit: Ian Lance Taylor <iant@golang.org>
This commit is contained in:
Ian Lance Taylor 2025-10-24 14:57:55 -07:00 • committed by Gopher Robot
parent 189f2c08cc
commit 5f4ec3541f
1 changed files with 0 additions and 24 deletions
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24
src/runtime/cgocheck.go
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@ -177,27 +177,3 @@ func cgoCheckBits(src unsafe.Pointer, gcbits *byte, off, size uintptr) {
} }
} }
} }
// cgoCheckUsingType is like cgoCheckTypedBlock, but is a last ditch
// fall back to look for pointers in src using the type information.
// We only use this when looking at a value on the stack when the type
// uses a GC program, because otherwise it's more efficient to use the
// GC bits. This is called on the system stack.
//
//go:nowritebarrier
//go:systemstack
func cgoCheckUsingType(typ *_type, src unsafe.Pointer, off, size uintptr) {
if !typ.Pointers() {
return
}
// Anything past typ.PtrBytes is not a pointer.
if typ.PtrBytes <= off {
return
}
if ptrdataSize := typ.PtrBytes - off; size > ptrdataSize {
size = ptrdataSize
}
cgoCheckBits(src, getGCMask(typ), off, size)
}