I compile a demo testcase with gcc 4.9 , run it in aarch64 server with valgrind 
. valgrind report there is some memory error as below. I do not think that it 
maybe a problem.

==6494== 1 errors in context 1 of 4:
==6494== Use of uninitialised value of size 4
==6494==    at 0x1089F8: main (testAlgo.cpp:84)
==6494==
==6494==
==6494== 1 errors in context 2 of 4:
==6494== Use of uninitialised value of size 4
==6494==    at 0x10898E: fun() (testAlgo.cpp:67)
==6494==    by 0x1089D9: main (testAlgo.cpp:80)
==6494==
==6494==
==6494== 2 errors in context 3 of 4:
==6494== Invalid write of size 4
==6494==    at 0x10885C: A::A(int const&) (testAlgo.cpp:36)
==6494==    by 0x108973: fun() (testAlgo.cpp:64)
==6494==    by 0x1089D9: main (testAlgo.cpp:80)
==6494==  Address 0xfed715b8 is on thread 1's stack
==6494==  16 bytes below stack pointer


And then I compile a demo testcase with clang, run it in aarch64 server with 
valgrind . valgrind report there is no memory error



Valgrind version: valgrind-3.11.0.SVN.aosp

Attachment: testcase.rar
Description: testcase.rar

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