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https://github.com/golang/go
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62 lines
1.1 KiB
Go
62 lines
1.1 KiB
Go
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// compile
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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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// issue 44739: cmd/compile: incorrect offset in MOVD
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// load/store on ppc64/ppc64le causes assembler error.
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// Test other 8 byte loads and stores where the
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// compile time offset is not aligned to 8, as
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// well as cases where the offset is not known
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// until link time (e.g. gostrings).
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package main
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import (
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"fmt"
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)
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type T struct {
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x [4]byte
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y [8]byte
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}
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var st T
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const (
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gostring1 = "abc"
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gostring2 = "defghijk"
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gostring3 = "lmnopqrs"
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)
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func f(a T, _ byte, b T) bool {
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// initialization of a,b
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// tests unaligned store
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return a.y == b.y
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}
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func g(a T) {
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// test load of unaligned
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// 8 byte gostring, store
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// to unaligned static
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copy(a.y[:], gostring2)
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}
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func main() {
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var t1, t2 T
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// test copy to automatic storage,
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// load of unaligned gostring.
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copy(st.y[:], gostring2)
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copy(t1.y[:], st.y[:])
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copy(t2.y[:], gostring3)
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// test initialization of params
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if !f(t1, 'a', t2) {
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// gostring1 added so it has a use
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fmt.Printf("FAIL: %s\n", gostring1)
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}
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}
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