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set const arch64 to fix compiling with vcc/icc (#17539)

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rockcavera 2021-03-28 02:11:51 -03:00 • committed by GitHub
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lib/system/countbits_impl.nim
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@ -18,6 +18,7 @@ const useGCC_builtins* = (defined(gcc) or defined(llvm_gcc) or
defined(clang)) and useBuiltins defined(clang)) and useBuiltins
const useICC_builtins* = defined(icc) and useBuiltins const useICC_builtins* = defined(icc) and useBuiltins
const useVCC_builtins* = defined(vcc) and useBuiltins const useVCC_builtins* = defined(vcc) and useBuiltins
const arch64 = sizeof(int) == 8
template countBitsImpl(n: uint32): int = template countBitsImpl(n: uint32): int =
# generic formula is from: https://graphics.stanford.edu/~seander/bithacks.html#CountBitsSetParallel # generic formula is from: https://graphics.stanford.edu/~seander/bithacks.html#CountBitsSetParallel