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From: "belagod at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/106339] [13 Regression] ICE in exact_div, at
 poly-int.h:2232
Date: Tue, 06 Sep 2022 08:08:23 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D106339

Tejas Belagod <belagod at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |belagod at gcc dot gnu.org
     Ever confirmed|0                           |1
   Last reconfirmed|                            |2022-09-06
             Status|UNCONFIRMED                 |NEW

--- Comment #1 from Tejas Belagod <belagod at gcc dot gnu.org> ---
Also breaks my glibc build - ICEs with this test case reduced from
glibc/dlfcn/dlinfo.c:

/* aarch64-none-linux-gnu-gcc -march=3Darmv8-a+sve -O2 ice.c  */
typedef long unsigned int size_t;
struct link_map
  {
    size_t l_tls_modid;
  };
# 24 "dlinfo.c" 2
struct dlinfo_args
{
  void *handle;
  int request;
  void *arg;
};
void
dlinfo_doit (void *argsblock)
{
  struct dlinfo_args *const args =3D argsblock;
  struct link_map *l =3D args->handle;
  *(size_t *) args->arg =3D 0;
  *(size_t *) args->arg =3D l->l_tls_modid;
}


>From my prelimnary investigation, it looks like tree-vect-slp is trying to
build the constant vector using duplicate and interleave with 2 V1DI vector=
s as
with the other example posted above. I haven't dug deep enough if V1DI vect=
ors
are the right thing to do here.=