go/src/cmd/compile/internal/ssagen/nowb.go

func EnableNoWriteBarrierRecCheck() { … }

func NoWriteBarrierRecCheck() { … }

var nowritebarrierrecCheck …

type nowritebarrierrecChecker …

type nowritebarrierrecCall …

// newNowritebarrierrecChecker creates a nowritebarrierrecChecker. It
// must be called before walk.
func newNowritebarrierrecChecker() *nowritebarrierrecChecker { … }

func (c *nowritebarrierrecChecker) findExtraCalls(nn ir.Node) { … }

// recordCall records a call from ODCLFUNC node "from", to function
// symbol "to" at position pos.
//
// This should be done as late as possible during compilation to
// capture precise call graphs. The target of the call is an LSym
// because that's all we know after we start SSA.
//
// This can be called concurrently for different from Nodes.
func (c *nowritebarrierrecChecker) recordCall(fn *ir.Func, to *obj.LSym, pos src.XPos) { … }

func (c *nowritebarrierrecChecker) check() { … }