You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: issue39459.go
    path of file: ./repos/gccrs/gcc/testsuite/go.test/test/fixedbugs
    
    the code of the file until where you have to start completion: // compile

// Copyright 2020 Th
    
func f(x interface{}, p *int) {
	_ = *p // trigger nil check here, removing it from below
	switch x := x.(type) {
	case *T:
		// Zero twice, so one of them will be removed by the deadstore pass
		*x = T{}
		*p = 0 // store op to prevent Zero ops from being optimized by the earlier opt pass rewrite rules
		*x = T{}
	}
}