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author | Cuong Manh Le <cuong.manhle.vn@gmail.com> | 2020-11-24 00:58:00 +0700 |
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committer | Cuong Manh Le <cuong.manhle.vn@gmail.com> | 2020-11-24 03:06:15 +0000 |
commit | 7dc5d909fb465345bf1583eb978aaa56ca365f38 (patch) | |
tree | 9278347c34dbc18ebb208e76121ef1c9367a0522 /test/fixedbugs | |
parent | 762eda346a9f4062feaa8a9fc0d17d72b11586f0 (diff) | |
download | go-7dc5d909fb465345bf1583eb978aaa56ca365f38.tar.gz go-7dc5d909fb465345bf1583eb978aaa56ca365f38.zip |
cmd/compile: set OpLoad argument type interface{} correctly
CL 271906 allows loading single field of typed-interface{} OpIData, but
it does not update the corresponding selector type. So the generated
OpLoad has the named type instead, prevent it from being lowered by
lower pass.
Fixes #42784
Change-Id: Idf32e4f711731be09d508dd712b60bc8c58309bd
Reviewed-on: https://go-review.googlesource.com/c/go/+/272466
Trust: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
Diffstat (limited to 'test/fixedbugs')
-rw-r--r-- | test/fixedbugs/issue42784.go | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/test/fixedbugs/issue42784.go b/test/fixedbugs/issue42784.go new file mode 100644 index 0000000000..e2b06e9307 --- /dev/null +++ b/test/fixedbugs/issue42784.go @@ -0,0 +1,26 @@ +// compile + +// Copyright 2020 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. + +// Ensure that late expansion correctly set OpLoad argument type interface{} + +package p + +type iface interface { + m() +} + +type it interface{} + +type makeIface func() iface + +func f() { + var im makeIface + e := im().(it) + g(e) +} + +//go:noinline +func g(i it) {} |