[Bug gdb/28987] Outdated value being displayed for variable while DWARF info apparently contains the correct one

["tromey at sourceware dot org" <sourceware-bugzilla@sourceware.org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=28987

Tom Tromey <tromey at sourceware dot org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
     Ever confirmed|0                           |1
   Last reconfirmed|                            |2022-04-09
                 CC|                            |tromey at sourceware dot org
             Status|UNCONFIRMED                 |NEW

--- Comment #1 from Tom Tromey <tromey at sourceware dot org> ---
I can reproduce.
I see this:

(gdb) info addr i
Symbol "i" is multi-location:
  Base address 0x201140  Range 0x201140-0x201140: the constant 0
  Range 0x201140-0x201140: the constant 1
  Range 0x201140-0x201140: the constant 2
  Range 0x201140-0x201140: the constant 3
  Range 0x201140-0x201140: the constant 4
  Range 0x201140-0x201140: the constant 5
  Range 0x201140-0x201140: the constant 6
  Range 0x201140-0x201140: the constant 7
  Range 0x201140-0x201151: the constant 8
.
(gdb) p $pc
$2 = (void (*)()) 0x201140 <foo>


I think this falls into this case in dwarf2/loc.c:

      if (low == high && pc == low)
        {
          /* This is entry PC record present only at entry point
             of a function.  Verify it is really the function entry point.  */

I don't really know why this code is exactly here.
Like, it has to do with computing entry values, but I don't know
why it's needed.
If I comment out that block, this test case works.

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