mirror of
https://github.com/golang/go
synced 2024-11-24 23:27:57 -07:00
44 lines
784 B
Go
44 lines
784 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.
|
||
|
|
|
||
|
|
// 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"
|
||
|
|
|
||
|
|
type i4 struct {
|
||
|
|
a, b, c, d int
|
||
|
|
}
|
||
|
|
|
||
|
|
//go:registerparams
|
||
|
|
//go:noinline
|
||
|
|
func F(x i4) i4 {
|
||
|
|
ab := x.a + x.b
|
||
|
|
bc := x.b + x.c
|
||
|
|
cd := x.c + x.d
|
||
|
|
ad := x.a + x.d
|
||
|
|
ba := x.a - x.b
|
||
|
|
cb := x.b - x.c
|
||
|
|
dc := x.c - x.d
|
||
|
|
da := x.a - x.d
|
||
|
|
|
||
|
|
return i4{ab*bc + da, cd*ad + cb, ba*cb + ad, dc*da + bc}
|
||
|
|
}
|
||
|
|
|
||
|
|
func main() {
|
||
|
|
x := i4{1, 2, 3, 4}
|
||
|
|
y := x
|
||
|
|
z := F(x)
|
||
|
|
if (i4{12, 34, 6, 8}) != z {
|
||
|
|
fmt.Printf("y=%v, z=%v\n", y, z)
|
||
|
|
}
|
||
|
|
}
|