Function llvm_fixup_output

fn llvm_fixup_output<'ll, 'tcx>(
    bx: &mut Builder<'_, 'll, 'tcx>,
    value: &'ll Value,
    reg: InlineAsmRegClass,
    layout: &TyAndLayout<'tcx>,
    instance: Instance<'_>,
) -> &'ll Value

Fix up an output value to work around LLVM bugs.