From: Marcel van Lohuizen <mpvl@golang.org>
Date: Fri, 18 Mar 2016 15:41:51 +0000 (+0100)
Subject: runtime: don't assume b.N > 0
X-Git-Tag: go1.7beta1~1228
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=872ca73cadf589bd4adf76d0fac9b07c52ac75c8;p=gostls13.git

runtime: don't assume b.N > 0

Change-Id: I2e26717f2563d7633ffd15f4adf63c3d0ee3403f
Reviewed-on: https://go-review.googlesource.com/20856
Run-TryBot: Marcel van Lohuizen <mpvl@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
---

diff --git a/src/runtime/proc_test.go b/src/runtime/proc_test.go
index 7064b0edd8..fd12945be0 100644
--- a/src/runtime/proc_test.go
+++ b/src/runtime/proc_test.go
@@ -428,6 +428,9 @@ func TestPingPongHog(t *testing.T) {
 }
 
 func BenchmarkPingPongHog(b *testing.B) {
+	if b.N == 0 {
+		return
+	}
 	defer runtime.GOMAXPROCS(runtime.GOMAXPROCS(1))
 
 	// Create a CPU hog