[Bug target/114323] [14 Regression] MVE vector load intrinsic miscompiled since r14-5622-g4d7647edfd7d98

[acoplan at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114323

--- Comment #1 from Alex Coplan <acoplan at gcc dot gnu.org> ---
Hmm, so in 043t.mergephi1 we have:

uint32x4_t foo ()
{
  const uint32_t D.13439[4];
  uint32x4_t V0;

  <bb 2> :
  D.13439 = *.LC0;
  V0_3 = vld1q_u32 (&D.13439);
  D.13439 ={v} {CLOBBER(eos)};
  return V0_3;

}

but then 044t.dse1 says:

  Deleted dead store: D.13439 = *.LC0;

leaving us with a load of uninitialized memory.