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, 232 insertions, 0 deletions

diff --git a/gcc/testsuite/go.test/test/chan/nonblock.go b/gcc/testsuite/go.test/test/chan/nonblock.go
new file mode 100644
index 000000000..52f04bfb1
--- /dev/null
+++ b/gcc/testsuite/go.test/test/chan/nonblock.go
@@ -0,0 +1,232 @@
+// $G $D/$F.go && $L $F.$A && ./$A.out
+
+// 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.
+
+// Verify channel operations that test for blocking
+// Use several sizes and types of operands
+
+package main
+
+import "runtime"
+import "time"
+
+func i32receiver(c chan int32, strobe chan bool) {
+	if <-c != 123 {
+		panic("i32 value")
+	}
+	strobe <- true
+}
+
+func i32sender(c chan int32, strobe chan bool) {
+	c <- 234
+	strobe <- true
+}
+
+func i64receiver(c chan int64, strobe chan bool) {
+	if <-c != 123456 {
+		panic("i64 value")
+	}
+	strobe <- true
+}
+
+func i64sender(c chan int64, strobe chan bool) {
+	c <- 234567
+	strobe <- true
+}
+
+func breceiver(c chan bool, strobe chan bool) {
+	if !<-c {
+		panic("b value")
+	}
+	strobe <- true
+}
+
+func bsender(c chan bool, strobe chan bool) {
+	c <- true
+	strobe <- true
+}
+
+func sreceiver(c chan string, strobe chan bool) {
+	if <-c != "hello" {
+		panic("s value")
+	}
+	strobe <- true
+}
+
+func ssender(c chan string, strobe chan bool) {
+	c <- "hello again"
+	strobe <- true
+}
+
+var ticker = time.Tick(10 * 1000) // 10 us
+func sleep() {
+	<-ticker
+	<-ticker
+	runtime.Gosched()
+	runtime.Gosched()
+	runtime.Gosched()
+}
+
+const maxTries = 10000 // Up to 100ms per test.
+
+func main() {
+	var i32 int32
+	var i64 int64
+	var b bool
+	var s string
+	var ok bool
+
+	var sync = make(chan bool)
+
+	for buffer := 0; buffer < 2; buffer++ {
+		c32 := make(chan int32, buffer)
+		c64 := make(chan int64, buffer)
+		cb := make(chan bool, buffer)
+		cs := make(chan string, buffer)
+
+		i32, ok = <-c32
+		if ok {
+			panic("blocked i32sender")
+		}
+
+		i64, ok = <-c64
+		if ok {
+			panic("blocked i64sender")
+		}
+
+		b, ok = <-cb
+		if ok {
+			panic("blocked bsender")
+		}
+
+		s, ok = <-cs
+		if ok {
+			panic("blocked ssender")
+		}
+
+		go i32receiver(c32, sync)
+		try := 0
+		for !(c32 <- 123) {
+			try++
+			if try > maxTries {
+				println("i32receiver buffer=", buffer)
+				panic("fail")
+			}
+			sleep()
+		}
+		<-sync
+
+		go i32sender(c32, sync)
+		if buffer > 0 {
+			<-sync
+		}
+		try = 0
+		for i32, ok = <-c32; !ok; i32, ok = <-c32 {
+			try++
+			if try > maxTries {
+				println("i32sender buffer=", buffer)
+				panic("fail")
+			}
+			sleep()
+		}
+		if i32 != 234 {
+			panic("i32sender value")
+		}
+		if buffer == 0 {
+			<-sync
+		}
+
+		go i64receiver(c64, sync)
+		try = 0
+		for !(c64 <- 123456) {
+			try++
+			if try > maxTries {
+				panic("i64receiver")
+			}
+			sleep()
+		}
+		<-sync
+
+		go i64sender(c64, sync)
+		if buffer > 0 {
+			<-sync
+		}
+		try = 0
+		for i64, ok = <-c64; !ok; i64, ok = <-c64 {
+			try++
+			if try > maxTries {
+				panic("i64sender")
+			}
+			sleep()
+		}
+		if i64 != 234567 {
+			panic("i64sender value")
+		}
+		if buffer == 0 {
+			<-sync
+		}
+
+		go breceiver(cb, sync)
+		try = 0
+		for !(cb <- true) {
+			try++
+			if try > maxTries {
+				panic("breceiver")
+			}
+			sleep()
+		}
+		<-sync
+
+		go bsender(cb, sync)
+		if buffer > 0 {
+			<-sync
+		}
+		try = 0
+		for b, ok = <-cb; !ok; b, ok = <-cb {
+			try++
+			if try > maxTries {
+				panic("bsender")
+			}
+			sleep()
+		}
+		if !b {
+			panic("bsender value")
+		}
+		if buffer == 0 {
+			<-sync
+		}
+
+		go sreceiver(cs, sync)
+		try = 0
+		for !(cs <- "hello") {
+			try++
+			if try > maxTries {
+				panic("sreceiver")
+			}
+			sleep()
+		}
+		<-sync
+
+		go ssender(cs, sync)
+		if buffer > 0 {
+			<-sync
+		}
+		try = 0
+		for s, ok = <-cs; !ok; s, ok = <-cs {
+			try++
+			if try > maxTries {
+				panic("ssender")
+			}
+			sleep()
+		}
+		if s != "hello again" {
+			panic("ssender value")
+		}
+		if buffer == 0 {
+			<-sync
+		}
+	}
+	print("PASS\n")
+}