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From: "zsojka at seznam dot cz" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug ipa/103669] New: [12 Regression] wrong code with -O --param=modref-max-depth=1
Date: Sun, 12 Dec 2021 16:27:32 +0000	[thread overview]
Message-ID: <bug-103669-4@http.gcc.gnu.org/bugzilla/> (raw)

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103669

            Bug ID: 103669
           Summary: [12 Regression] wrong code with -O
                    --param=modref-max-depth=1
           Product: gcc
           Version: 12.0
            Status: UNCONFIRMED
          Keywords: wrong-code
          Severity: normal
          Priority: P3
         Component: ipa
          Assignee: unassigned at gcc dot gnu.org
          Reporter: zsojka at seznam dot cz
                CC: marxin at gcc dot gnu.org
  Target Milestone: ---
              Host: x86_64-pc-linux-gnu

Created attachment 51979
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=51979&action=edit
reduced testcase (from OpenTTD sources)

Output:
$ x86_64-pc-linux-gnu-g++ -O --param=modref-max-depth=1 testcase.C
$ ./a.out 
Aborted

$ x86_64-pc-linux-gnu-g++ -v
Using built-in specs.
COLLECT_GCC=/repo/gcc-trunk/binary-latest/bin/x86_64-pc-linux-gnu-g++
COLLECT_LTO_WRAPPER=/repo/gcc-trunk/binary-trunk-r12-5916-20211212131849-gaeedb00a1ae-checking-yes-rtl-df-extra-amd64/bin/../libexec/gcc/x86_64-pc-linux-gnu/12.0.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: /repo/gcc-trunk//configure --enable-languages=c,c++
--enable-valgrind-annotations --disable-nls --enable-checking=yes,rtl,df,extra
--with-cloog --with-ppl --with-isl --build=x86_64-pc-linux-gnu
--host=x86_64-pc-linux-gnu --target=x86_64-pc-linux-gnu
--with-ld=/usr/bin/x86_64-pc-linux-gnu-ld
--with-as=/usr/bin/x86_64-pc-linux-gnu-as --disable-libstdcxx-pch
--prefix=/repo/gcc-trunk//binary-trunk-r12-5916-20211212131849-gaeedb00a1ae-checking-yes-rtl-df-extra-amd64
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 12.0.0 20211212 (experimental) (GCC)

             reply	other threads:[~2021-12-12 16:27 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-12-12 16:27 zsojka at seznam dot cz [this message]
2021-12-12 20:29 ` [Bug ipa/103669] " pinskia at gcc dot gnu.org
2021-12-13 10:00 ` [Bug ipa/103669] [12 Regression] wrong code with -O --param=modref-max-depth=1 since r12-4976-g4898e958a92d45db marxin at gcc dot gnu.org
2021-12-19 22:08 ` hubicka at gcc dot gnu.org
2021-12-20  7:43 ` cvs-commit at gcc dot gnu.org
2021-12-20  7:45 ` hubicka at gcc dot gnu.org

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