Adding upstream version 1.21.8.upstream/1.21.8

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 61 insertions, 0 deletions

diff --git a/test/fixedbugs/issue44739.go b/test/fixedbugs/issue44739.go
new file mode 100644
index 0000000..3441a90
--- /dev/null
+++ b/test/fixedbugs/issue44739.go
@@ -0,0 +1,61 @@
+// compile
+
+// 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.
+
+// issue 44739: cmd/compile: incorrect offset in MOVD
+// load/store on ppc64/ppc64le causes assembler error.
+
+// Test other 8 byte loads and stores where the
+// compile time offset is not aligned to 8, as
+// well as cases where the offset is not known
+// until link time (e.g. gostrings).
+
+package main
+
+import (
+	"fmt"
+)
+
+type T struct {
+	x [4]byte
+	y [8]byte
+}
+
+var st T
+
+const (
+	gostring1 = "abc"
+	gostring2 = "defghijk"
+	gostring3 = "lmnopqrs"
+)
+
+func f(a T, _ byte, b T) bool {
+	// initialization of a,b
+	// tests unaligned store
+	return a.y == b.y
+}
+
+func g(a T) {
+	// test load of unaligned
+	// 8 byte gostring, store
+	// to unaligned static
+	copy(a.y[:], gostring2)
+}
+
+func main() {
+	var t1, t2 T
+
+	// test copy to automatic storage,
+	// load of unaligned gostring.
+	copy(st.y[:], gostring2)
+	copy(t1.y[:], st.y[:])
+	copy(t2.y[:], gostring3)
+	// test initialization of params
+	if !f(t1, 'a', t2) {
+		// gostring1 added so it has a use
+		fmt.Printf("FAIL: %s\n", gostring1)
+	}
+}
+