[Bug debug/67192] [6 Regression] Backward-goto in loop can get wrong line number

["manu at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67192

--- Comment #17 from Manuel López-Ibáñez <manu at gcc dot gnu.org> ---
(In reply to Andreas Arnez from comment #16)
> Well, I'm rather a GDB- than a GCC developer.  My interest in this is to
> ensure that GDB doesn't become completely useless ;-)
> Also, I thought that David was a better candidate for fixing this because
> his patch introduced the regression.

I cannot force anyone to do anything, I was just pointing out what would be a
good strategy to get the result that you want.

> Anyway, if it helps speeding this up, and if nobody objects, I could give it
> a try.  In this case I actually lean towards your suggestion from comment

Nobody will ever object to people fixing bugs ;)

> #13, to pass an explicit location to c_finish_loop.  Somehow I don't like
> adding a function like c_parser_peek_token_keep_input_location and then
> using it only for this fix, just to get rid of it in the long run.  (Right?)

Sure, I haven't looked at implications of both solutions in detail. The thing
to remember is that the only people you need to convince are the MAINTAINERS of
C FE. If you have never contributed to GCC, this may be useful:
https://gcc.gnu.org/wiki/GettingStarted#Basics:_Contributing_to_GCC_in_10_easy_steps

You may also send a WIP patch to gcc-patches@ and CC the C FE maintainers, just
to get some early feedback.
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From: "ramana at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug target/67366] Poor assembly generation for unaligned memory accesses on ARM v6 & v7 cpus
Date: Fri, 09 Oct 2015 10:59:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?idg366

Ramana Radhakrishnan <ramana at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED
   Target Milestone|---                         |6.0

--- Comment #14 from Ramana Radhakrishnan <ramana at gcc dot gnu.org> ---
Fixed on trunk - Yann please try and let us know.