runtime/internal/atomic: fix s390x's StorepNoWB implementation
Same as CL 170323, but for s390x instead of wasm.
Fixes #31495.
Change-Id: Ie39f649f5e33690375a8bcb1bc3b92d912ca4398
Reviewed-on: https://go-review.googlesource.com/c/go/+/172417
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
diff --git a/src/runtime/internal/atomic/atomic_s390x.go b/src/runtime/internal/atomic/atomic_s390x.go
index ec294a2..2ffbec0 100644
--- a/src/runtime/internal/atomic/atomic_s390x.go
+++ b/src/runtime/internal/atomic/atomic_s390x.go
@@ -42,11 +42,14 @@
*ptr = val
}
+//go:notinheap
+type noWB struct{}
+
// NO go:noescape annotation; see atomic_pointer.go.
//go:noinline
//go:nosplit
func StorepNoWB(ptr unsafe.Pointer, val unsafe.Pointer) {
- *(*uintptr)(ptr) = uintptr(val)
+ *(**noWB)(ptr) = (*noWB)(val)
}
//go:noinline
