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From: "reiter.christoph at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/109806] [13/14 Regression] 13.1.0 cc1plus
 stack smashing crash with C array of complex structs
Date: Thu, 11 May 2023 22:45:48 +0000
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X-Bugzilla-Product: gcc
X-Bugzilla-Component: tree-optimization
X-Bugzilla-Version: 13.1.0
X-Bugzilla-Keywords: ice-on-valid-code, memory-hog
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D109806

Christoph Reiter <reiter.christoph at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |reiter.christoph at gmail =
dot com

--- Comment #10 from Christoph Reiter <reiter.christoph at gmail dot com> -=
--
I've compared [0] the stack size of the two builds now, and it looks like me
setting BOOT_LDFLAGS [1] somehow made the build skip the stack size adjustm=
ent
here:
https://gcc.gnu.org/git/?p=3Dgcc.git;a=3Dblob;f=3Dconfig/mh-mingw;h=3De9136=
7a711284148e16849d3066fb94599204a6c;hb=3DHEAD#l15
leading to the low Windows stack size defaults

So this might not be a bug, but having built gcc wrong.

[0] objdump.exe -x /ucrt64/lib/gcc/x86_64-w64-mingw32/13.1.0/cc1plus.exe | =
grep
SizeOfStackReserve
[1]
https://github.com/msys2/MINGW-packages/commit/518e217a129eeeb92e5090f1bb14=
deaf0ed70edf#diff-cf683a120abf18dd9f774ea5df77137d01e19f359f7cb40c1fc152355=
cde7b80R265=