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[stdlib] Make non-frozen types BitwiseCopyable #83630

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[stdlib] Make non-frozen types BitwiseCopyable #83630

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benrimmington
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Resolves part of #79470.

Note

MachErrorCode and POSIXErrorCode (for Apple platforms) were removed by #81726.

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@swift-ci Please smoke test

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Assertion failures with Unicode.GeneralCategory and Unicode.NumericType.

swift/lib/SIL/IR/TypeLowering.cpp

Lines 3497 to 3505 in 5076fec

if (hasNoConformingArchetypeNode) {
llvm::errs() << "Non-trivial type with BitwiseCopyable conformance!?:\n"
<< substType << "\n";
conformance.print(llvm::errs());
llvm::errs() << "\n"
<< "Disable this validation with -Xllvm "
"-type-lowering-disable-verification.\n";
assert(false);
}

@benrimmington benrimmington deleted the bitwise-copyable branch August 11, 2025 13:56
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@ktoso ktoso Awaiting requested review from ktoso ktoso will be requested when the pull request is marked ready for review ktoso is a code owner

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