mirror of
https://github.com/golang/go
synced 2024-11-23 02:10:03 -07:00
5eb9912084
Includes test taken from https://github.com/golang/go/issues/44816#issuecomment-791618179 and improved debugging output. Updates #44816 Change-Id: I94aeb9c5255f175fe80727be29d218bad54bf7ea Reviewed-on: https://go-review.googlesource.com/c/go/+/299389 Trust: David Chase <drchase@google.com> Reviewed-by: Cherry Zhang <cherryyz@google.com>
55 lines
1.1 KiB
Go
55 lines
1.1 KiB
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.
|
|
|
|
// wasm is excluded because the compiler chatter about register abi pragma ends up
|
|
// on stdout, and causes the expected output to not match.
|
|
|
|
package main
|
|
|
|
import (
|
|
"fmt"
|
|
)
|
|
|
|
var sink *string
|
|
|
|
type stringPair struct {
|
|
a, b string
|
|
}
|
|
|
|
type stringPairPair struct {
|
|
x, y stringPair
|
|
}
|
|
|
|
// The goal of this test is to be sure that the call arg/result expander works correctly
|
|
// for a corner case of passing a 2-nested struct that fits in registers to/from calls.
|
|
|
|
//go:registerparams
|
|
//go:noinline
|
|
func H(spp stringPairPair) string {
|
|
return spp.x.a + " " + spp.x.b + " " + spp.y.a + " " + spp.y.b
|
|
}
|
|
|
|
//go:registerparams
|
|
//go:noinline
|
|
func G(a, b, c, d string) stringPairPair {
|
|
return stringPairPair{stringPair{a, b}, stringPair{c, d}}
|
|
}
|
|
|
|
func main() {
|
|
spp := G("this", "is", "a", "test")
|
|
s := H(spp)
|
|
gotVsWant(s, "this is a test")
|
|
}
|
|
|
|
func gotVsWant(got, want string) {
|
|
if got != want {
|
|
fmt.Printf("FAIL, got %s, wanted %s\n", got, want)
|
|
}
|
|
}
|