https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93440

--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
OK, so I can compile the testcase now but I fail to see the error.  We're
doing pointer difference compares and those should work out fine?

We're also doig many checks but you probably refer to the very first test?

_Z12brokenvectorRKSt6vectorIiSaIiEES3_:
.LFB2470:
        .cfi_startproc
        movq    (%rsi), %rdx
        movq    8(%rdi), %rsi
        xorl    %r8d, %r8d
        movq    (%rdi), %rax
        movq    %rsi, %rcx
        subq    %rax, %rcx
        cmpq    $12, %rcx
        jle     .L18

that's created from

  <bb 2> [local count: 1073741824]:
  _7 = MEM[(int * *)b_2(D)];
  _6 = MEM[(int * *)a_3(D) + 8B];
  _4 = MEM[(int * *)a_3(D)];
  _10 = _6 - _4;
  if (_10 > 12)

what are the actual pointers here?

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