}
	inspect.Preorder(nodeFilter, func(n ast.Node) {
		call := n.(*ast.CallExpr)
		fn := typeutil.StaticCallee(pass.TypesInfo, call)
		if fn == nil {
			return // not a static call
		}

		// Classify the callee (without allocating memory).
		argidx := -1

		recv := fn.Type().(*types.Signature).Recv()
		if fn.Name() == "Unmarshal" && recv == nil {
			// "encoding/json".Unmarshal
			// "encoding/xml".Unmarshal

	{name: "expand calls", fn: expandCalls, required: true},
	{name: "decompose builtin", fn: postExpandCallsDecompose, required: true},
	{name: "softfloat", fn: softfloat, required: true},
	{name: "late opt", fn: opt, required: true}, // TODO: split required rules and optimizing rules
	{name: "dead auto elim", fn: elimDeadAutosGeneric},
	{name: "sccp", fn: sccp},

// Many of these are exported via linkname to assembly in the syscall
// package.

//go:nosplit
//go:linkname syscall_sysvicall6
//go:cgo_unsafe_args
func syscall_sysvicall6(fn, nargs, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, err uintptr) {
	call := libcall{
		fn:   fn,
		n:    nargs,
		args: uintptr(unsafe.Pointer(&a1)),
	}
	entersyscallblock()
	asmcgocall(unsafe.Pointer(&asmsysvicall6x), unsafe.Pointer(&call))
	exitsyscall()

	name := NewNameAt(npos, sym, typ)
	name.Class = PFUNC
	sym.SetFunc(true)

	fn := &Func{Nname: name}
	fn.pos = fpos
	fn.op = ODCLFUNC
	// Most functions are ABIInternal. The importer or symabis
	// pass may override this.
	fn.ABI = obj.ABIInternal
	fn.SetTypecheck(1)

	name.Func = fn

	return fn
}

func (f *Func) isStmt() {}

}

void BM_BuildSignature(::testing::benchmark::State& state) {
  const int n_args = state.range(0);

  NameAttrList fn;
  fn.set_name("afunction");
  for (int i = 0; i < n_args; i++) {
    (*fn.mutable_attr())[absl::StrCat("T", i)].set_type(DT_FLOAT);
  }
  std::vector<XlaCompiler::Argument> args(n_args);
  for (int i = 0; i < n_args; i++) {
    args[i].kind = (((i % 3) == 0) ? XlaCompiler::Argument::kConstant

// DeclFunc declares the parameters for fn and adds it to
// Target.Funcs.
//
// Before returning, it sets CurFunc to fn. When the caller is done
// constructing fn, it must call FinishFuncBody to restore CurFunc.
func DeclFunc(fn *ir.Func) {
	fn.DeclareParams(true)
	fn.Nname.Defn = fn
	Target.Funcs = append(Target.Funcs, fn)

	funcStack = append(funcStack, ir.CurFunc)
	ir.CurFunc = fn
}

	vs := []struct {
		call           string
		fn             func() error
		filter, expect string
	}{
		{call: "Setegid(1)", fn: func() error { return syscall.Setegid(1) }, filter: "Gid:", expect: "\t0\t1\t0\t1"},
		{call: "Setegid(0)", fn: func() error { return syscall.Setegid(0) }, filter: "Gid:", expect: "\t0\t0\t0\t0"},

type makeFuncImpl struct {
	makeFuncCtxt
	ftyp *funcType
	fn   func([]Value) []Value
}

// MakeFunc returns a new function of the given [Type]
// that wraps the function fn. When called, that new function
// does the following:
//
//   - converts its arguments to a slice of Values.
//   - runs results := fn(args).
//   - returns the results as a slice of Values, one per formal result.
//

			continue
		}
		fn := line[5 : len(line)-13]
		if !trampolines[fn] {
			trampolines[fn] = true
			fmt.Fprintf(&out, "TEXT ·%s_trampoline(SB),NOSPLIT,$0-0\n", fn)
			if goos == "openbsd" && arch == "ppc64" {
				fmt.Fprintf(&out, "\tCALL\t%s(SB)\n", fn)
				fmt.Fprintf(&out, "\tRET\n")
			} else {
				fmt.Fprintf(&out, "\tJMP\t%s(SB)\n", fn)
			}
		}
	}

			}
		}
		return nil
	}

	s.requireFns = append(s.requireFns, fn)
	return s
}

func (s *suiteImpl) Setup(fn resource.SetupFn) Suite {
	s.setupFns = append(s.setupFns, fn)
	return s
}

func (s *suiteImpl) Teardown(fn resource.TeardownFn) Suite {
	s.teardownFns = append(s.teardownFns, fn)
	return s
}

func (s *suiteImpl) SetupParallel(fns ...resource.SetupFn) Suite {