1
0
mirror of https://github.com/golang/go synced 2024-11-16 23:14:42 -07:00
go/test/abi/methods.go
David Chase 0ec2c4abba cmd/compile: (fixed) spill output parameters passed in registers as autos
Repair of CL 300749.

ALSO:
found evidence that stack maps for bodyless methods are wrong.
gofmt in test/abi
removed never-executed code in types/size.go

Updates #44816.
Updates #40724.

Change-Id: Ifeb5fee60f60e7c7b58ee0457f58a3265d6cf3f6
Reviewed-on: https://go-review.googlesource.com/c/go/+/302071
Trust: David Chase <drchase@google.com>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
2021-03-16 19:22:44 +00:00

53 lines
1.0 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.
package main
import (
"fmt"
)
type toobig struct {
a, b, c string
}
//go:registerparams
//go:noinline
func (x *toobig) MagicMethodNameForTestingRegisterABI(y toobig, z toobig) toobig {
return toobig{x.a, y.b, z.c}
}
type AnInterface interface {
MagicMethodNameForTestingRegisterABI(y toobig, z toobig) toobig
}
//go:registerparams
//go:noinline
func I(a, b, c string) toobig {
return toobig{a, b, c}
}
// AnIid prevents the compiler from figuring out what the interface really is.
//go:noinline
func AnIid(x AnInterface) AnInterface {
return x
}
var tmp toobig
func main() {
x := I("Ahoy", "1,", "2")
y := I("3", "there,", "4")
z := I("5", "6,", "Matey")
tmp = x.MagicMethodNameForTestingRegisterABI(y, z)
fmt.Println(tmp.a, tmp.b, tmp.c)
tmp = AnIid(&x).MagicMethodNameForTestingRegisterABI(y, z)
fmt.Println(tmp.a, tmp.b, tmp.c)
}