mirror of
https://github.com/golang/go
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47 lines
765 B
Go
47 lines
765 B
Go
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// run
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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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// Bug: in (*bb).d, the value to be returned was not allocated to
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// a register that satisfies its register mask.
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package main
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type bb struct {
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r float64
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x []float64
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}
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//go:noinline
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func B(r float64, x []float64) I {
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return bb{r, x}
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}
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func (b bb) d() (int, int) {
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if b.r == 0 {
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return 0, len(b.x)
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}
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return len(b.x), len(b.x)
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}
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type I interface { d() (int, int) }
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func D(r I) (int, int) { return r.d() }
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//go:noinline
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func F() (int, int) {
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r := float64(1)
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x := []float64{0, 1, 2}
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b := B(r, x)
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return D(b)
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}
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func main() {
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x, y := F()
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if x != 3 || y != 3 {
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panic("FAIL")
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}
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}
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