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From: "seurer at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug libfortran/106079] New: [12/13 regression]
 gfortran.dg/boz_15.f90 fails after gcc-12-6498-g07c60b8e33
Date: Fri, 24 Jun 2022 12:24:02 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D106079

            Bug ID: 106079
           Summary: [12/13 regression] gfortran.dg/boz_15.f90 fails after
                    gcc-12-6498-g07c60b8e33
           Product: gcc
           Version: 13.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libfortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: seurer at gcc dot gnu.org
  Target Milestone: ---

g:07c60b8e33c614a6cdd9fe3de7f409319b6a239a, gcc-12-6498-g07c60b8e33
make  -k check-gcc-fortran RUNTESTFLAGS=3D"dg.exp=3Dgfortran.dg/boz_15.f90"
FAIL: gfortran.dg/boz_15.f90   -O0  execution test
FAIL: gfortran.dg/boz_15.f90   -O1  execution test
FAIL: gfortran.dg/boz_15.f90   -O2  execution test
FAIL: gfortran.dg/boz_15.f90   -O3 -fomit-frame-pointer -funroll-loops
-fpeel-loops -ftracer -finline-functions  execution test
FAIL: gfortran.dg/boz_15.f90   -O3 -g  execution test
FAIL: gfortran.dg/boz_15.f90   -Os  execution test
# of expected passes            6
# of unexpected failures        6


commit 07c60b8e33c614a6cdd9fe3de7f409319b6a239a (HEAD)
Author: Jakub Jelinek <jakub@redhat.com>
Date:   Tue Jan 4 10:37:48 2022 +0100

    fortran, libgfortran: -mabi=3Dieeelongdouble I/O


At line 20 of file
/home/seurer/gcc/git/gcc-12-test/gcc/testsuite/gfortran.dg/boz_15.f90
Fortran runtime error: Bad value during integer read

Error termination. Backtrace:
#0  0x7fffa583af03 in formatted_transfer_scalar_read
        at /home/seurer/gcc/git/gcc-12-test/libgfortran/io/transfer.c:1513
#1  0x7fffa583c307 in formatted_transfer
        at /home/seurer/gcc/git/gcc-12-test/libgfortran/io/transfer.c:2339
#2  0x7fffa5836f47 in wrap_scalar_transfer
        at /home/seurer/gcc/git/gcc-12-test/libgfortran/io/transfer.c:2382
#3  0x100104d3 in ???
#4  0x10010ce3 in ???
#5  0x7fffa5237f2b in ???
#6  0x7fffa5238107 in ???
#7  0xffffffffffffffff in ???
FAIL: gfortran.dg/boz_15.f90   -O0  execution test

This occurs with the compiler configured with  --with-long-double-format=3D=
ieee
on a distro (Fedora 36) which also used  --with-long-double-format=3Dieee.=