Add RISC-V 64-bit architecture detection #4525

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Polaris-911 wants to merge 1 commit into facebook:dev from Polaris-911:new-feature

Polaris-911 commented Nov 3, 2025

Add compile-time check for RISC-V 64-bit via __riscv and __riscv_xlen == 64
Align with existing 64-bit architecture detection logic (x86_64/ARM64 etc.)
Ensure 64BIT is defined for RISC-V 64-bit builds


          Add RISC-V 64-bit architecture detection

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Polaris-911 commented Nov 27, 2025

Hi @Cyan4973 , thanks again for your time! Would you also be able to take a look at this PR when convenient?

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