From: Daniel Morsing <daniel.morsing@gmail.com>
Date: Mon, 22 Oct 2012 17:14:30 +0000 (+0200)
Subject: cmd/gc: Mark use of builtin functions as calls.
X-Git-Tag: go1.1rc2~2069
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=48af64b2956c9cd2618588d3d678ff099ced89a5;p=gostls13.git

cmd/gc: Mark use of builtin functions as calls.

Fixes #4097.

R=rsc
CC=golang-dev, gri
https://golang.org/cl/6749059
---

diff --git a/src/cmd/gc/typecheck.c b/src/cmd/gc/typecheck.c
index 2ee468a58a..cebc2ff8a9 100644
--- a/src/cmd/gc/typecheck.c
+++ b/src/cmd/gc/typecheck.c
@@ -245,6 +245,12 @@ callrecv(Node *n)
 	case OCALLINTER:
 	case OCALLFUNC:
 	case ORECV:
+	case OCAP:
+	case OLEN:
+	case OCOPY:
+	case ONEW:
+	case OAPPEND:
+	case ODELETE:
 		return 1;
 	}
 
diff --git a/test/fixedbugs/issue4097.go b/test/fixedbugs/issue4097.go
new file mode 100644
index 0000000000..2c999a8336
--- /dev/null
+++ b/test/fixedbugs/issue4097.go
@@ -0,0 +1,11 @@
+// errorcheck
+
+// Copyright 2012 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 foo
+
+var s [][10]int
+const m = len(s[len(s)-1]) // ERROR "must be constant" 
+