From a7d8b35aacf00a87953a67c9d1f793c16a5440ef Mon Sep 17 00:00:00 2001 From: Russ Cox Date: Mon, 9 Sep 2013 12:00:16 -0400 Subject: [PATCH] cmd/gc: fix 'internal error: typename ideal bool' Fixes #6298. R=ken2 CC=golang-dev https://golang.org/cl/13624043 --- src/cmd/gc/walk.c | 2 ++ test/fixedbugs/issue6298.go | 15 +++++++++++++++ 2 files changed, 17 insertions(+) create mode 100644 test/fixedbugs/issue6298.go diff --git a/src/cmd/gc/walk.c b/src/cmd/gc/walk.c index ff7d772570..e539d25d32 100644 --- a/src/cmd/gc/walk.c +++ b/src/cmd/gc/walk.c @@ -1386,7 +1386,9 @@ ret: // constants until walk. For example, if n is y%1 == 0, the // walk of y%1 may have replaced it by 0. // Check whether n with its updated args is itself now a constant. + t = n->type; evconst(n); + n->type = t; if(n->op == OLITERAL) typecheck(&n, Erv); diff --git a/test/fixedbugs/issue6298.go b/test/fixedbugs/issue6298.go new file mode 100644 index 0000000000..6303dbe5b0 --- /dev/null +++ b/test/fixedbugs/issue6298.go @@ -0,0 +1,15 @@ +// compile + +// golang.org/issue/6298. +// Used to cause "internal error: typename ideal bool" + +// Copyright 2013 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. + +package main + +func main() { + var x interface{} = "abc"[0] == 'a' + _ = x +} -- 2.51.0