From 47ab3d4a42e9ab51c465c4322d2ec233f6324e6b Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 28 Apr 2024 15:16:40 +0200 Subject: Adding upstream version 1.18.10. Signed-off-by: Daniel Baumann --- test/abi/double_nested_struct.go | 54 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 54 insertions(+) create mode 100644 test/abi/double_nested_struct.go (limited to 'test/abi/double_nested_struct.go') diff --git a/test/abi/double_nested_struct.go b/test/abi/double_nested_struct.go new file mode 100644 index 0000000..814341e --- /dev/null +++ b/test/abi/double_nested_struct.go @@ -0,0 +1,54 @@ +// 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) + } +} -- cgit v1.2.3