Use gcc atomic builtins if available on IA-32 and x86_64

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    • Fully Compatible
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    • Server 2.7.1
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    • 3
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      Follow-on to SERVER-12064. Robie Basak of Canonical submitted a pull request to improve our portability, particularly on ARM.

      https://github.com/mongodb/mongo/pull/582

      We merged two of his three commits for 2.5.5. The third changes the codepath on IA-32 and x86_64 to use GCC atomic builtins if available rather than the inline assembler of mongo/platform/atomic_intrinsics_gcc_intel.h

            Assignee:
            Benety Goh
            Reporter:
            Matt Kangas (Inactive)
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              Created:
              Updated:
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