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-rw-r--r--test/abi/spills3.go48
1 files changed, 48 insertions, 0 deletions
diff --git a/test/abi/spills3.go b/test/abi/spills3.go
new file mode 100644
index 0000000..2478284
--- /dev/null
+++ b/test/abi/spills3.go
@@ -0,0 +1,48 @@
+// 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:noinline
+func spills(px *i4) {
+}
+
+//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
+ i := i4{ab*bc + da, cd*ad + cb, ba*cb + ad, dc*da + bc}
+ spills(&i)
+ return i
+}
+
+func main() {
+ x := i4{1, 2, 3, 4}
+ y := x
+ z := F(x)
+ if z != (i4{12, 34, 6, 8}) {
+ fmt.Printf("y=%v, z=%v\n", y, z)
+ }
+}