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From: "dominiq at lps dot ens.fr" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug fortran/52162] New: Bogus -fcheck=bounds with realloc on assignment to unallocated LHS Date: Tue, 07 Feb 2012 22:03:00 -0000 [thread overview] Message-ID: <bug-52162-4@http.gcc.gnu.org/bugzilla/> (raw) http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52162 Bug #: 52162 Summary: Bogus -fcheck=bounds with realloc on assignment to unallocated LHS Classification: Unclassified Product: gcc Version: 4.7.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: fortran AssignedTo: unassigned@gcc.gnu.org ReportedBy: dominiq@lps.ens.fr The test gfortran.dg/realloc_on_assign_2.f0 fails at runtime when compiled with -fcheck=bounds: At line 57 of file /opt/gcc/work/gcc/testsuite/gfortran.dg/realloc_on_assign_2.f03 Fortran runtime error: Array bound mismatch for dimension 1 of array 'a' (10/2) The following reduced test integer(4), allocatable :: a(:) integer(8), allocatable :: b(:) allocate (b(7:11)) a = b if (lbound (a, 1) .ne. lbound(b, 1)) call abort if (ubound (a, 1) .ne. ubound(b, 1)) call abort end fails with At line 4 of file realloc_on_assign_2_red.f03 Fortran runtime error: Array bound mismatch for dimension 1 of array 'a' (0/5) Running the executable through valgrind yields ==78996== Memcheck, a memory error detector ==78996== Copyright (C) 2002-2011, and GNU GPL'd, by Julian Seward et al. ==78996== Using Valgrind-3.7.0 and LibVEX; rerun with -h for copyright info ==78996== Command: a.out ==78996== ==78996== Conditional jump or move depends on uninitialised value(s) ==78996== at 0x1000018FC: MAIN__ (realloc_on_assign_2_red.f03:4) ==78996== by 0x100001C94: main (realloc_on_assign_2_red.f03:7) ==78996== ==78996== Conditional jump or move depends on uninitialised value(s) ==78996== at 0x100001948: MAIN__ (realloc_on_assign_2_red.f03:4) ==78996== by 0x100001C94: main (realloc_on_assign_2_red.f03:7) ==78996== ==78996== Conditional jump or move depends on uninitialised value(s) ==78996== at 0x100001994: MAIN__ (realloc_on_assign_2_red.f03:4) ==78996== by 0x100001C94: main (realloc_on_assign_2_red.f03:7) ==78996== ==78996== Conditional jump or move depends on uninitialised value(s) ==78996== at 0x1000019DD: MAIN__ (realloc_on_assign_2_red.f03:4) ==78996== by 0x100001C94: main (realloc_on_assign_2_red.f03:7) ==78996== ==78996== Conditional jump or move depends on uninitialised value(s) ==78996== at 0x100001A2C: MAIN__ (realloc_on_assign_2_red.f03:4) ==78996== by 0x100001C94: main (realloc_on_assign_2_red.f03:7) ==78996== At line 4 of file realloc_on_assign_2_red.f03 Fortran runtime error: ==78996== Conditional jump or move depends on uninitialised value(s) ==78996== at 0x10019559E: __vfprintf (in /usr/lib/libSystem.B.dylib) ==78996== by 0x1001C95B6: vsnprintf (in /usr/lib/libSystem.B.dylib) ==78996== by 0x100021759: _gfortrani_st_vprintf (in /opt/gcc/gcc4.7w/lib/libgfortran.3.dylib) ==78996== by 0x7FFF5FBFE72F: ??? ==78996== by 0x7FFF5FC12DBF: ImageLoaderMachOCompressed::resolve(ImageLoader::LinkContext const&, char const*, unsigned char, int, ImageLoader const**, ImageLoaderMachOCompressed::LastLookup*) (in /usr/lib/dyld) ==78996== by 0x7FFF5FBFE73F: ??? ==78996== by 0x7FFF5FC4049F: ??? (in /usr/lib/dyld) ==78996== by 0x7FFF5FC43EDF: ??? ==78996== by 0x10012FF91: ??? (in /opt/gcc/gcc4.7w/lib/libgfortran.3.dylib) ==78996== by 0x7FFF5FBFE887: ??? ==78996== by 0x10012FF99: ??? (in /opt/gcc/gcc4.7w/lib/libgfortran.3.dylib) ==78996== by 0x10012FFC7: ??? (in /opt/gcc/gcc4.7w/lib/libgfortran.3.dylib) ==78996== ==78996== Conditional jump or move depends on uninitialised value(s) ==78996== at 0x100196D06: __vfprintf (in /usr/lib/libSystem.B.dylib) ==78996== by 0x1001C95B6: vsnprintf (in /usr/lib/libSystem.B.dylib) ==78996== by 0x100021759: _gfortrani_st_vprintf (in /opt/gcc/gcc4.7w/lib/libgfortran.3.dylib) ==78996== by 0x7FFF5FBFE72F: ??? ==78996== by 0x7FFF5FC12DBF: ImageLoaderMachOCompressed::resolve(ImageLoader::LinkContext const&, char const*, unsigned char, int, ImageLoader const**, ImageLoaderMachOCompressed::LastLookup*) (in /usr/lib/dyld) ==78996== by 0x7FFF5FBFE73F: ??? ==78996== by 0x7FFF5FC4049F: ??? (in /usr/lib/dyld) ==78996== by 0x7FFF5FC43EDF: ??? ==78996== by 0x10012FF91: ??? (in /opt/gcc/gcc4.7w/lib/libgfortran.3.dylib) ==78996== by 0x7FFF5FBFE887: ??? ==78996== by 0x10012FF99: ??? (in /opt/gcc/gcc4.7w/lib/libgfortran.3.dylib) ==78996== by 0x10012FFC7: ??? (in /opt/gcc/gcc4.7w/lib/libgfortran.3.dylib) ==78996== ==78996== Conditional jump or move depends on uninitialised value(s) ==78996== at 0x1002545AD: __ultoa (in /usr/lib/libSystem.B.dylib) ==78996== by 0x100196D76: __vfprintf (in /usr/lib/libSystem.B.dylib) ==78996== by 0x1001C95B6: vsnprintf (in /usr/lib/libSystem.B.dylib) ==78996== by 0x100021759: _gfortrani_st_vprintf (in /opt/gcc/gcc4.7w/lib/libgfortran.3.dylib) ==78996== by 0x7FFF5FBFE72F: ??? ==78996== by 0x7FFF5FC12DBF: ImageLoaderMachOCompressed::resolve(ImageLoader::LinkContext const&, char const*, unsigned char, int, ImageLoader const**, ImageLoaderMachOCompressed::LastLookup*) (in /usr/lib/dyld) ==78996== by 0x7FFF5FBFE73F: ??? ==78996== by 0x7FFF5FC4049F: ??? (in /usr/lib/dyld) ==78996== by 0x7FFF5FC43EDF: ??? ==78996== by 0x10012FF91: ??? (in /opt/gcc/gcc4.7w/lib/libgfortran.3.dylib) ==78996== by 0x7FFF5FBFE887: ??? ==78996== by 0x10012FF99: ??? (in /opt/gcc/gcc4.7w/lib/libgfortran.3.dylib) ==78996== ==78996== Syscall param write(buf) points to uninitialised byte(s) ==78996== at 0x10019A272: write (in /usr/lib/libSystem.B.dylib) ==78996== by 0x100021769: _gfortrani_st_vprintf (in /opt/gcc/gcc4.7w/lib/libgfortran.3.dylib) ==78996== by 0x6F62207961727240: ??? ==78996== by 0x6D73696D20646E74: ??? ==78996== by 0x726F662068637460: ??? ==78996== by 0x69736E656D69641F: ??? ==78996== by 0x20666F2031206E6E: ??? ==78996== by 0x6127207961727260: ??? ==78996== by 0x29352F30282026: ??? ==78996== by 0x10012FF99: ??? (in /opt/gcc/gcc4.7w/lib/libgfortran.3.dylib) ==78996== by 0x10012FFC7: ??? (in /opt/gcc/gcc4.7w/lib/libgfortran.3.dylib) ==78996== by 0x7FFF5FC43EDF: ??? ==78996== Address 0x7fff5fbfe703 is on thread 1's stack ==78996== Array bound mismatch for dimension 1 of array 'a' (0/5) ==78996== ==78996== HEAP SUMMARY: ==78996== in use at exit: 128 bytes in 2 blocks ==78996== total heap usage: 18 allocs, 16 frees, 4,029 bytes allocated ==78996== ==78996== LEAK SUMMARY: ==78996== definitely lost: 0 bytes in 0 blocks ==78996== indirectly lost: 0 bytes in 0 blocks ==78996== possibly lost: 0 bytes in 0 blocks ==78996== still reachable: 40 bytes in 1 blocks ==78996== suppressed: 88 bytes in 1 blocks ==78996== Rerun with --leak-check=full to see details of leaked memory ==78996== ==78996== For counts of detected and suppressed errors, rerun with: -v ==78996== Use --track-origins=yes to see where uninitialised values come from ==78996== ERROR SUMMARY: 9 errors from 9 contexts (suppressed: 0 from 0)
next reply other threads:[~2012-02-07 22:03 UTC|newest] Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top 2012-02-07 22:03 dominiq at lps dot ens.fr [this message] 2012-02-09 17:20 ` [Bug fortran/52162] " burnus at gcc dot gnu.org 2012-02-09 17:28 ` burnus at gcc dot gnu.org 2012-09-22 22:29 ` dominiq at lps dot ens.fr 2015-08-13 14:34 ` a.rohou at gmail dot com
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