From ccd992355df7192993c666236047820244914598 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Tue, 16 Apr 2024 21:19:13 +0200 Subject: Adding upstream version 1.21.8. Signed-off-by: Daniel Baumann --- test/fixedbugs/issue8139.go | 50 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 50 insertions(+) create mode 100644 test/fixedbugs/issue8139.go (limited to 'test/fixedbugs/issue8139.go') diff --git a/test/fixedbugs/issue8139.go b/test/fixedbugs/issue8139.go new file mode 100644 index 0000000..6e5607d --- /dev/null +++ b/test/fixedbugs/issue8139.go @@ -0,0 +1,50 @@ +// run + +// Copyright 2014 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 8139. The x.(T) assertions used to write 1 (unexpected) +// return byte for the 0-byte return value T. + +package main + +import "fmt" + +type T struct{} + +func (T) M() {} + +type M interface { + M() +} + +var e interface{} = T{} +var i M = T{} +var b bool + +func f1() int { + if b { + return f1() // convince inliner not to inline + } + z := 0x11223344 + _ = e.(T) + return z +} + +func f2() int { + if b { + return f1() // convince inliner not to inline + } + z := 0x11223344 + _ = i.(T) + return z +} + +func main() { + x := f1() + y := f2() + if x != 0x11223344 || y != 0x11223344 { + fmt.Printf("BUG: x=%#x y=%#x, want 0x11223344 for both\n", x, y) + } +} -- cgit v1.2.3