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[cheriintrin.h] Avoid unnecessary truncate in cheri_perms_get() #674

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[cheriintrin.h] Avoid unnecessary truncate in cheri_perms_get() #674

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Commits on Jan 12, 2023

  1. Fix cheri_otype_t in cheriintrin.h for RV32 

    In RV32 the return type of __builtin_cheri_type_get() is int since that is
what ptrdiff_t is by default. Use __PTRDIFF_TYPE__ instead of long an
re-generate the test checks.
    @arichardson
    arichardson committed Jan 12, 2023
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  2. [cheriintrin.h] Avoid unnecessary truncate in cheri_perms_get() 

    The intrinsic returns an i64 for 64-bit so we should use `ptraddr_t`
as the underlying type for `cheri_perms_t`.
    @arichardson
    arichardson committed Jan 12, 2023
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