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From: "dcb314 at hotmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/109807] [14 Regression] sse2-mmx-pmaddwd.c met ICE after
 commit r14-666-g608e7f3ab47 with march=cascadelake
Date: Thu, 11 May 2023 07:51:09 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D109807

David Binderman <dcb314 at hotmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |dcb314 at hotmail dot com

--- Comment #3 from David Binderman <dcb314 at hotmail dot com> ---
I see the same for this C code on znver1:

typedef struct MonitorInfo MonitorInfo;
char *decode_edid_edid;
struct MonitorInfo {
  int width_mm;
  int height_mm
} decode_edid() {
  MonitorInfo info;
  MonitorInfo *__trans_tmp_3 =3D &info;
  {
    MonitorInfo *info =3D __trans_tmp_3;
    info->width_mm =3D 10 * decode_edid_edid[5];
    info->height_mm =3D 10 * decode_edid_edid[6];
  }
  decode_headerdecode_vendor_and_product_identificationdecode_edid_version(
      info);
}

$ ~/gcc/results.20230511.asan.ubsan/bin/gcc -c -O2 -march=3Dznver1 -w bug91=
9.c
during GIMPLE pass: slp
bug919.c: In function =E2=80=98decode_edid=E2=80=99:
bug919.c:6:3: internal compiler error: in ix86_widen_mult_cost, at
config/i386/i386.cc:20442
    6 | } decode_edid() {
      |   ^~~~~~~~~~~

It was ok yesterday:

$ ~/gcc/results.20230510.asan.ubsan/bin/gcc -c -O2 -march=3Dznver1 -w bug91=
9.c
$=