[dev.typealias] all: merge go1.8.3 into dev.typealiasdev.typealias

352996a381 (tag: go1.8.3) [release-branch.go1.8] go1.8.3
bb5055d6f1 [release-branch.go1.8] doc: document go1.8.3
439c0c8be8 [release-branch.go1.8] cmd/compile: don't move spills to loop exits where the spill is dead
e396667ba3 [release-branch.go1.8] cmd/compile: zero ambiguously live variables at VARKILLs
daf6706f37 [release-branch.go1.8] runtime: use pselect6 for usleep on linux/386
958c64bbab [release-branch.go1.8] runtime: use pselect6 for usleep on linux/amd64 and linux/arm
195e20a976 [release-branch.go1.8] cmd/compile: ignore types when considering tuple select for CSE
f55bc1c4eb [release-branch.go1.8] net/http: update bundled http2 for gracefulShutdownCh lock contention slowdown
51f508bb4a [release-branch.go1.8] cmd/compile: fix s390x unsigned comparison constant merging rules
243dee1737 [release-branch.go1.8] cmd/go: if we get a C compiler dwarf2 warning, try without -g
a43c0d2dc8 [release-branch.go1.8] runtime: don't corrupt arena bounds on low mmap
1054085dcf [release-branch.go1.8] cmd/compile: fix store chain in schedule pass
18a13d373a [release-branch.go1.8] runtime: doubly fix "double wakeup" panic
6efa2f22ac [release-branch.go1.8] database/sql: ensure releaseConn is defined before a possible close
fb9770f09b [release-branch.go1.8] runtime: print debug info on "base out of range"
b6a8fc8d8c [release-branch.go1.8] doc: remove mentions of yacc tool
59870f9e19 (tag: go1.8.2) [release-branch.go1.8] go1.8.2
c9688ddb6b [release-branch.go1.8] doc: document go1.8.2 and go1.7.6
38d35f49e7 [release-branch.go1.8] crypto/elliptic: fix carry bug in x86-64 P-256 implementation.

Change-Id: I2aa0eab7a990d24e25809fb13ce6cb031104f474

1 files changed, 32 insertions, 0 deletions

diff --git a/test/fixedbugs/issue20029.go b/test/fixedbugs/issue20029.go
new file mode 100644
index 0000000000..db3f8aa5dd
--- /dev/null
+++ b/test/fixedbugs/issue20029.go
@@ -0,0 +1,32 @@
+// run
+
+// Copyright 2017 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.
+
+// Issue 20029: make sure we zero at VARKILLs of
+// ambiguously live variables.
+// The ambiguously live variable here is the hiter
+// for the inner range loop.
+
+package main
+
+import "runtime"
+
+func f(m map[int]int) {
+outer:
+	for i := 0; i < 10; i++ {
+		for k := range m {
+			if k == 5 {
+				continue outer
+			}
+		}
+		runtime.GC()
+		break
+	}
+	runtime.GC()
+}
+func main() {
+	m := map[int]int{1: 2, 2: 3, 3: 4}
+	f(m)
+}