src/cmd/gc/align.c          |  5 +++++
 test/fixedbugs/issue9432.go | 15 +++++++++++++++

diff --git a/src/cmd/gc/align.c b/src/cmd/gc/align.c
index 6e5d149c750829b675f2262cbb375b43835bcfb5..63ed2e5af66986ac9c7aef18f52cc575ea35e46c 100644
--- a/src/cmd/gc/align.c
+++ b/src/cmd/gc/align.c
@@ -128,6 +128,11 @@ 		lineno = lno;
 		return;
 	}
 
+	// break infinite recursion if the broken recursive type
+	// is referenced again
+	if(t->broke && t->width == 0)
+		return;
+
 	// defer checkwidth calls until after we're done
 	defercalc++;
 
diff --git a/test/fixedbugs/issue9432.go b/test/fixedbugs/issue9432.go
new file mode 100644
index 0000000000000000000000000000000000000000..0d0bc960f948e8874f3f0b37f3b376676c8a52f3
--- /dev/null
+++ b/test/fixedbugs/issue9432.go
@@ -0,0 +1,15 @@
+// errorcheck
+
+// 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.
+
+// gc used to recurse infinitely when dowidth is applied
+// to a broken recursive type again.
+// See golang.org/issue/9432.
+package p
+
+type foo struct { // GCCGO_ERROR "invalid recursive type"
+	bar  foo
+	blah foo
+} // ERROR "invalid recursive type foo"