//
//go:nosplit
func atomicstorep(ptr unsafe.Pointer, new unsafe.Pointer) {
	if writeBarrier.enabled {
		atomicwb((*unsafe.Pointer)(ptr), new)
	}
	if goexperiment.CgoCheck2 {
		cgoCheckPtrWrite((*unsafe.Pointer)(ptr), new)
	}
	atomic.StorepNoWB(noescape(ptr), new)
}

// atomic_storePointer is the implementation of runtime/internal/UnsafePointer.Store
// (like StoreNoWB but with the write barrier).
//

const cgoWriteBarrierFail = "unpinned Go pointer stored into non-Go memory"

// cgoCheckPtrWrite is called whenever a pointer is stored into memory.
// It throws if the program is storing an unpinned Go pointer into non-Go
// memory.
//
// This is called from generated code when GOEXPERIMENT=cgocheck2 is enabled.
//
//go:nosplit
//go:nowritebarrier
func cgoCheckPtrWrite(dst *unsafe.Pointer, src unsafe.Pointer) {
	if !mainStarted {

	ir.Syms.AssertI2I2 = typecheck.LookupRuntimeFunc("assertI2I2")
	ir.Syms.CgoCheckMemmove = typecheck.LookupRuntimeFunc("cgoCheckMemmove")
	ir.Syms.CgoCheckPtrWrite = typecheck.LookupRuntimeFunc("cgoCheckPtrWrite")
	ir.Syms.CheckPtrAlignment = typecheck.LookupRuntimeFunc("checkptrAlignment")
	ir.Syms.Deferproc = typecheck.LookupRuntimeFunc("deferproc")