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go/test/abi/fibish_closure.go
David Chase 7240a18adb cmd/compile: test register ABI for method, interface, closure calls
This is enabled with a ridiculous magic name for method,
or for last input type passed, that needs to be changed
to something inutterable before actual release.

Ridiculous method name: MagicMethodNameForTestingRegisterABI
Ridiculous last (input) type name: MagicLastTypeNameForTestingRegisterABI

RLTN is tested with strings.Contains, so you can have
MagicLastTypeNameForTestingRegisterABI1
and
MagicLastTypeNameForTestingRegisterABI2
if that is helpful

Includes test test/abi/fibish2.go

Updates #44816.

Change-Id: I592a6edc71ca9bebdd1d00e24edee1ceebb3e43f
Reviewed-on: https://go-review.googlesource.com/c/go/+/299410
Trust: David Chase <drchase@google.com>
Run-TryBot: David Chase <drchase@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
2021-03-12 21:18:15 +00:00

35 lines
674 B
Go

// run
//go:build !wasm
// +build !wasm
// Copyright 2021 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package main
import "fmt"
// Test that register results are correctly returned (and passed)
type MagicLastTypeNameForTestingRegisterABI func(int, MagicLastTypeNameForTestingRegisterABI) (int, int)
//go:noinline
func f(x int, unused MagicLastTypeNameForTestingRegisterABI) (int, int) {
if x < 3 {
return 0, x
}
a, b := f(x-2, unused)
c, d := f(x-1, unused)
return a + d, b + c
}
func main() {
x := 40
a, b := f(x, f)
fmt.Printf("f(%d)=%d,%d\n", x, a, b)
}