obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.

1 files changed, 66 insertions, 0 deletions

diff --git a/gcc/testsuite/go.test/test/convlit.go b/gcc/testsuite/go.test/test/convlit.go
new file mode 100644
index 000000000..90ac5490c
--- /dev/null
+++ b/gcc/testsuite/go.test/test/convlit.go
@@ -0,0 +1,66 @@
+// errchk $G -e $D/$F.go
+
+// Copyright 2009 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
+
+// explicit conversion of constants is work in progress.
+// the ERRORs in this block are debatable, but they're what
+// the language spec says for now.
+var x1 = string(1)
+var x2 string = string(1)
+var x3 = int(1.5)     // ERROR "convert|truncate"
+var x4 int = int(1.5) // ERROR "convert|truncate"
+var x5 = "a" + string(1)
+var x6 = int(1e100)      // ERROR "overflow"
+var x7 = float32(1e1000) // ERROR "overflow"
+
+// implicit conversions merit scrutiny
+var s string
+var bad1 string = 1  // ERROR "conver|incompatible|invalid|cannot"
+var bad2 = s + 1     // ERROR "conver|incompatible|invalid"
+var bad3 = s + 'a'   // ERROR "conver|incompatible|invalid"
+var bad4 = "a" + 1   // ERROR "literals|incompatible|convert|invalid"
+var bad5 = "a" + 'a' // ERROR "literals|incompatible|convert|invalid"
+
+var bad6 int = 1.5       // ERROR "convert|truncate"
+var bad7 int = 1e100     // ERROR "overflow"
+var bad8 float32 = 1e200 // ERROR "overflow"
+
+// but these implicit conversions are okay
+var good1 string = "a"
+var good2 int = 1.0
+var good3 int = 1e9
+var good4 float64 = 1e20
+
+// explicit conversion of string is okay
+var _ = []int("abc")
+var _ = []byte("abc")
+
+// implicit is not
+var _ []int = "abc"  // ERROR "cannot use|incompatible|invalid"
+var _ []byte = "abc" // ERROR "cannot use|incompatible|invalid"
+
+// named string is okay
+type Tstring string
+
+var ss Tstring = "abc"
+var _ = []int(ss)
+var _ = []byte(ss)
+
+// implicit is still not
+var _ []int = ss  // ERROR "cannot use|incompatible|invalid"
+var _ []byte = ss // ERROR "cannot use|incompatible|invalid"
+
+// named slice is not
+type Tint []int
+type Tbyte []byte
+
+var _ = Tint("abc")  // ERROR "convert|incompatible|invalid"
+var _ = Tbyte("abc") // ERROR "convert|incompatible|invalid"
+
+// implicit is still not
+var _ Tint = "abc"  // ERROR "cannot use|incompatible|invalid"
+var _ Tbyte = "abc" // ERROR "cannot use|incompatible|invalid"