1// run
2
3//go:build !wasm
4
5// Copyright 2021 The Go Authors. All rights reserved.
6// Use of this source code is governed by a BSD-style
7// license that can be found in the LICENSE file.
8
9// wasm is excluded because the compiler chatter about register abi pragma ends up
10// on stdout, and causes the expected output to not match.
11
12package main
13
14import "fmt"
15
16type i5f5 struct {
17	a, b          int16
18	c, d, e       int32
19	r, s, t, u, v float32
20}
21
22//go:noinline
23func spills(_ *float32) {
24
25}
26
27//go:registerparams
28//go:noinline
29func F(x i5f5) i5f5 {
30	y := x.v
31	spills(&y)
32	x.r = y
33	return x
34}
35
36func main() {
37	x := i5f5{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}
38	y := x
39	z := F(x)
40	if (i5f5{1, 2, 3, 4, 5, 10, 7, 8, 9, 10}) != z {
41		fmt.Printf("y=%v, z=%v\n", y, z)
42	}
43}
44