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libgo patch committed: Disable inappropriate sync/atomic tests


This patch to the sync/atomic package disables a couple of tests on
systems with an inappropriate pointer size.  The 32-bit test was
clobbering 4 bytes on the heap.  The 64-bit test only worked on
little-endian systems.  Bootstrapped and ran Go testsuite on
x86_64-unknown-linux-gnu.  Committed to mainline.

Ian

diff -r d75f0efa5fc2 libgo/go/sync/atomic/atomic_test.go
--- a/libgo/go/sync/atomic/atomic_test.go	Fri Feb 10 23:04:22 2012 -0800
+++ b/libgo/go/sync/atomic/atomic_test.go	Sat Feb 11 21:54:35 2012 -0800
@@ -636,6 +636,7 @@
 		// 64-bit system; clear uintptr tests
 		hammer32[2].f = nil
 		hammer32[5].f = nil
+		hammer32[6].f = nil
 	}
 }
 
@@ -760,6 +761,7 @@
 		// 32-bit system; clear uintptr tests
 		hammer64[2].f = nil
 		hammer64[5].f = nil
+		hammer64[6].f = nil
 	}
 }
 

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