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From: "marxin at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/101160] New: [12 Regression] ICE in df_word_lr_local_compute, at df-problems.c:2962 since r12-1702-g7232f7c4c2d72743
Date: Tue, 22 Jun 2021 06:23:34 +0000	[thread overview]
Message-ID: <bug-101160-4@http.gcc.gnu.org/bugzilla/> (raw)

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101160

            Bug ID: 101160
           Summary: [12 Regression] ICE in df_word_lr_local_compute, at
                    df-problems.c:2962 since r12-1702-g7232f7c4c2d72743
           Product: gcc
           Version: 12.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: marxin at gcc dot gnu.org
                CC: jason at gcc dot gnu.org
  Target Milestone: ---

The following fails:

$ g++ /home/marxin/Programming/gcc/gcc/testsuite/g++.dg/abi/param2.C -O2
during RTL pass: subreg3
/home/marxin/Programming/gcc/gcc/testsuite/g++.dg/abi/param2.C: In function ‘S
foo(S)’:
/home/marxin/Programming/gcc/gcc/testsuite/g++.dg/abi/param2.C:12:1: internal
compiler error: in df_word_lr_local_compute, at df-problems.c:2962
   12 | }
      | ^
0x77484b df_word_lr_local_compute
        /home/marxin/Programming/gcc/gcc/df-problems.c:2962
0xd3c042 df_analyze_problem(dataflow*, bitmap_head*, int*, int)
        /home/marxin/Programming/gcc/gcc/df-core.c:1171
0xd3cf41 df_analyze_1
        /home/marxin/Programming/gcc/gcc/df-core.c:1228
0x1bc3045 init_dce
        /home/marxin/Programming/gcc/gcc/dce.c:763
0x1bc57e1 run_word_dce()
        /home/marxin/Programming/gcc/gcc/dce.c:1213
0x1cb93d2 decompose_multiword_subregs
        /home/marxin/Programming/gcc/gcc/lower-subreg.c:1516
0x1cba94d execute
        /home/marxin/Programming/gcc/gcc/lower-subreg.c:1816
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.

             reply	other threads:[~2021-06-22  6:23 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-22  6:23 marxin at gcc dot gnu.org [this message]
2021-06-22  6:23 ` [Bug c++/101160] " marxin at gcc dot gnu.org
2021-06-22  6:28 ` [Bug middle-end/101160] " pinskia at gcc dot gnu.org
2021-06-22  9:26 ` jakub at gcc dot gnu.org
2021-06-22  9:40 ` jakub at gcc dot gnu.org
2021-06-22 13:24 ` cvs-commit at gcc dot gnu.org
2021-07-18 10:42 ` jakub at gcc dot gnu.org

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