HazardyKnusperkeks added a comment.

In D143546#4114341 <https://reviews.llvm.org/D143546#4114341>, @owenpan wrote:

> In D143546#4113721 <https://reviews.llvm.org/D143546#4113721>, @rymiel wrote:
>
>> In D143546#4112077 <https://reviews.llvm.org/D143546#4112077>, @owenpan 
>> wrote:
>>
>>> As this one is an invalid-code-generation bug, I wanted it fixed ASAP.
>>
>> Do you intend to backport it to the 16 release branch then?
>
> I don't know but will go with whatever you, @MyDeveloperDay and 
> @HazardyKnusperkeks prefer.

I'd vote in favor, letting a code breaking bug knowingly in the most current 
(or to come? I don't follow that.) version would be let's say not nice.



================
Comment at: clang/lib/Format/TokenAnnotator.cpp:3884
   if (Style.isCpp()) {
+    if (Right.is(tok::period) && Left.is(tok::numeric_constant))
+      return true;
----------------
owenpan wrote:
> rsmith wrote:
> > owenpan wrote:
> > > HazardyKnusperkeks wrote:
> > > > Add a comment what that is? Without the bug report I'd not know what 
> > > > that sequence would be.
> > > I could do that, but the github issue is linked in the summary above and 
> > > will be in the commit message. In general, I don't like unnecessary 
> > > comments littered in the source. They can become outdated, out of place, 
> > > misleading, and even wrong. How about giving an example as shown above?
> > Does `clang-format` have any formatting modes where it would leave out 
> > spaces around `+` or `-`? The same issue arises with things like `0xe + n`, 
> > where removing the space between the `0xe` and the `+` results in a token 
> > splice.
> No. I was aware of them and had made sure clang-format already handled them 
> correctly.
> I could do that, but the github issue is linked in the summary above and will 
> be in the commit message. In general, I don't like unnecessary comments 
> littered in the source. They can become outdated, out of place, misleading, 
> and even wrong. How about giving an example as shown above?

If you do a `git blame` you can come to the commit and thus to the bug, but if 
you are just reading, at least I don't blame all the lines. There I think a 
comment is nice, and your proposal is a really nice one.
But I've accepted the patch as is, and so the decision is yours. :)


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D143546/new/

https://reviews.llvm.org/D143546

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