From 73df946d56c74384511a194dd01dbe099584fd1a Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 28 Apr 2024 15:14:23 +0200 Subject: Adding upstream version 1.16.10. Signed-off-by: Daniel Baumann --- test/live1.go | 46 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 46 insertions(+) create mode 100644 test/live1.go (limited to 'test/live1.go') diff --git a/test/live1.go b/test/live1.go new file mode 100644 index 0000000..87c8c97 --- /dev/null +++ b/test/live1.go @@ -0,0 +1,46 @@ +// compile + +// 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. + +// Test that code compiles without +// "internal error: ... recorded as live on entry" errors +// from the liveness code. +// +// This code contains methods or other construct that +// trigger the generation of wrapper functions with no +// clear line number (they end up using line 1), and those +// would have annotations printed if we used -live=1, +// like the live.go test does. +// Instead, this test relies on the fact that the liveness +// analysis turns any non-live parameter on entry into +// a compile error. Compiling successfully means that bug +// has been avoided. + +package main + +// The liveness analysis used to get confused by the tail return +// instruction in the wrapper methods generated for T1.M and (*T1).M, +// causing a spurious "live at entry: ~r1" for the return result. + +type T struct { +} + +func (t *T) M() *int + +type T1 struct { + *T +} + +// Liveness analysis used to have the VARDEFs in the wrong place, +// causing a temporary to appear live on entry. + +func f1(pkg, typ, meth string) { + panic("value method " + pkg + "." + typ + "." + meth + " called using nil *" + typ + " pointer") +} + +func f2() interface{} { + return new(int) +} + -- cgit v1.2.3