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Does Arm processor(Cortex-A5x) *internally* re-order instruction?

Austin Kim

Hi, All

We know that Arm-GCC compiler reorganizes order of instruction when building C code for optimization.My question is;

Does Arm processor *internally* re-order instruction to speed up performance and improve power efficiency?

We know that sometimes re-ordering could result in race condition since Arm processor does not execute instruction exactly issued by software. We would like to make sure how Arm processor works *internally*.

Target processor: Cortex-A53, Cortex-A57

BR,
Austin Kim

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