[Bug testsuite/29416] [gdb, testsuite/aarch64] FAIL: gdb.ada/literals.exp: print 16#ffffffffffffffff#

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

https://sourceware.org/bugzilla/show_bug.cgi?id=29416

--- Comment #1 from Tom de Vries <vries at gcc dot gnu.org> ---
With i386, we have:
...
(gdb) p int_bits
$3 = 32
(gdb) p long_bits
$4 = 32
(gdb) p long_long_bits
$5 = 64
...
so in processInt we hit the fits-in-unsigned-long-long case where we use as
type long long, so we have:
...
      /* Note: Interprets ULLONG_MAX as -1.  */                                 
      yylval.typed_val.type = type_long_long (par_state);                      
      ...

With aarch64, we have:
...
(gdb) p int_bits
$1 = 32
(gdb) p long_bits
$2 = 64
(gdb) p long_long_bits
$3 = 64
...
so in processInt we hit the fits-in-unsigned-long case and we use type unsigned
long:
...
      yylval.typed_val.type                                                     
        = builtin_type (par_state->gdbarch ())->builtin_unsigned_long;         
      ...

This explains the difference between the two results.

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