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Bug 1588714 - Implement CheckARMSupport for Win64/aarch64. r=kjacobs
aarch64 doesn't have `cpuid` like instruction set. Actually, we use getauxval system call on Linux/aarch64 to check CPU features. Windows has `IsProcessorFeaturePresent` API to get CPU features, so we should use it to check whether current CPU supports ARM Crypto extension. Differential Revision: https://phabricator.services.mozilla.com/D55270 --HG-- extra : moz-landing-system : lando
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