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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/114855] ICE: Segfault
Date: Fri, 26 Apr 2024 14:25:09 +0000
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X-Bugzilla-Version: 13.2.0
X-Bugzilla-Keywords: compile-time-hog, ice-on-valid-code, memory-hog
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D114855

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |amacleod at redhat dot com
     Ever confirmed|0                           |1
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2024-04-26

--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
Trunk at -O1:

dominator optimization             : 495.14 ( 82%)   0.20 (  5%) 495.44 ( 8=
1%)=20
 113M (  5%)

I can confirm the segfault with the 13.2 release.  It segfaults in

#0  0x00000000009a8603 in (anonymous
namespace)::pass_waccess::check_dangling_stores (this=3Dthis@entry=3D0x2866=
fc0,
bb=3D0x7ffff5277480, stores=3D..., bbs=3D...)
    at /space/rguenther/src/gcc-13-branch/gcc/gimple-ssa-warn-access.cc:4535

with too deep recursion.  That was fixed by r14-4308-gf194c684a28a5d for
PR111600 and could be backported, leaving the compile-time hog.  I'll do
that next week.=