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https://github.com/golang/go
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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>
49 lines
849 B
Go
49 lines
849 B
Go
// run
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//go:build !wasm
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// +build !wasm
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// Copyright 2021 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package main
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import (
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"fmt"
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)
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var sink *string
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type toobig struct {
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// 6 words will not SSA but will fit in registers
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a, b, c string
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}
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//go:registerparams
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//go:noinline
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func H(x toobig) string {
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return x.a + " " + x.b + " " + x.c
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}
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//go:registerparams
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//go:noinline
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func I(a, b, c string) toobig {
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return toobig{a, b, c}
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}
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func main() {
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s := H(toobig{"Hello", "there,", "World"})
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gotVsWant(s, "Hello there, World")
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fmt.Println(s)
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t := H(I("Ahoy", "there,", "Matey"))
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gotVsWant(t, "Ahoy there, Matey")
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fmt.Println(t)
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}
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func gotVsWant(got, want string) {
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if got != want {
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fmt.Printf("FAIL, got %s, wanted %s\n", got, want)
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}
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}
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