From: Ian Lance Taylor <iant@golang.org>
Date: Mon, 13 Feb 2012 05:53:33 +0000 (-0800)
Subject: sync/atomic: disable hammer pointer tests on wrong size system
X-Git-Tag: weekly.2012-02-14~85
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=c53b73455bdc2ca7ae6bc9f5e92984ba6682dc45;p=gostls13.git

sync/atomic: disable hammer pointer tests on wrong size system

hammerCompareAndSwapPointer64 was only passing on
little-endian systems.  hammerCompareAndSwapPointer32 was
writing 8 bytes to a uint32 value on the heap.

R=rsc, dvyukov
CC=golang-dev
https://golang.org/cl/5654065
---

diff --git a/src/pkg/sync/atomic/atomic_test.go b/src/pkg/sync/atomic/atomic_test.go
index ad7557650f..a06c85c3a9 100644
--- a/src/pkg/sync/atomic/atomic_test.go
+++ b/src/pkg/sync/atomic/atomic_test.go
@@ -636,6 +636,7 @@ func init() {
 		// 64-bit system; clear uintptr tests
 		hammer32[2].f = nil
 		hammer32[5].f = nil
+		hammer32[6].f = nil
 	}
 }
 
@@ -760,6 +761,7 @@ func init() {
 		// 32-bit system; clear uintptr tests
 		hammer64[2].f = nil
 		hammer64[5].f = nil
+		hammer64[6].f = nil
 	}
 }