[PATCH] Add line debug info for virtual thunks (PR ipa/97937)

[Alexandre Oliva]

On Jan  5, 2021, Richard Biener <rguenther@suse.de> wrote:

> But isn't this a consumer issue then?  If there is no line info for
> a PC range then gdb shouldn't display any.

No, there *is* line info there, carried over from an earlier .loc
directive, as there isn't anything like ".noloc" to output with a
function that is not expected or supposed to have line number info.

Without that, the assembler just extends the previous .loc directive
onto the function.

-- 
Alexandre Oliva, happy hacker  https://FSFLA.org/blogs/lxo/
   Free Software Activist         GNU Toolchain Engineer
        Vim, Vi, Voltei pro Emacs -- GNUlius Caesar