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a78c91ae59
Instead of using packed attribute hack, just use aligned attribute. It improves code generation on armv6 and armv7, and slightly improves code generation on aarch64. GCC generates identical code to regular aligned access on ARMv6 for all versions between 4.5 and trunk, except GCC 5 which is buggy and generates the same (bad) code as packed access: https://gcc.godbolt.org/z/hq37rz7sb