https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78054
Bug ID: 78054
Summary: gfortran.dg/pr70673.f90 FAILs at -O0
Product: gcc
Version: 7.0
Status: UNCONFIRMED
Keywords: wrong-code
Severity: normal
Priority: P3
Component: fortran
Assignee: unassigned at gcc dot gnu.org
Reporter: ebotcazou at gcc dot gnu.org
Target Milestone: ---
It's an issue similar to PR fortran/68887. pr70673.f90 fails on SPARC/Solaris:
FAIL: gfortran.dg/pr70673.f90 -O0 execution test
while it seems to pass on more mainstream platforms, for example x86-64/Linux.
Yet Valgrind complains on x86-64/Linux:
==10882== Memcheck, a memory error detector
==10882== Copyright (C) 2002-2013, and GNU GPL'd, by Julian Seward et al.
==10882== Using Valgrind-3.10.0 and LibVEX; rerun with -h for copyright info
==10882== Command: ./pr70673
==10882==
==10882== Conditional jump or move depends on uninitialised value(s)
==10882== at 0x4C290BD: malloc (in
/usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
==10882== by 0x4008DD: __m_MOD_s (in
/home/eric/build/gcc/sparc-sun-solaris2.10/pr70673)
==10882== by 0x400BDE: MAIN__ (in
/home/eric/build/gcc/sparc-sun-solaris2.10/pr70673)
==10882== by 0x400C15: main (in
/home/eric/build/gcc/sparc-sun-solaris2.10/pr70673)
==10882==
==10882== Conditional jump or move depends on uninitialised value(s)
==10882== at 0x4008EA: __m_MOD_s (in
/home/eric/build/gcc/sparc-sun-solaris2.10/pr70673)
==10882== by 0x400BDE: MAIN__ (in
/home/eric/build/gcc/sparc-sun-solaris2.10/pr70673)
==10882== by 0x400C15: main (in
/home/eric/build/gcc/sparc-sun-solaris2.10/pr70673)
==10882==
==10882== Conditional jump or move depends on uninitialised value(s)
==10882== at 0x4008F5: __m_MOD_s (in
/home/eric/build/gcc/sparc-sun-solaris2.10/pr70673)
==10882== by 0x400BDE: MAIN__ (in
/home/eric/build/gcc/sparc-sun-solaris2.10/pr70673)
==10882== by 0x400C15: main (in
/home/eric/build/gcc/sparc-sun-solaris2.10/pr70673)
==10882==
==10882== Conditional jump or move depends on uninitialised value(s)
==10882== at 0x400946: __m_MOD_s (in
/home/eric/build/gcc/sparc-sun-solaris2.10/pr70673)
==10882== by 0x400BDE: MAIN__ (in
/home/eric/build/gcc/sparc-sun-solaris2.10/pr70673)
==10882== by 0x400C15: main (in
/home/eric/build/gcc/sparc-sun-solaris2.10/pr70673)
==10882==
==10882==
==10882== HEAP SUMMARY:
==10882== in use at exit: 0 bytes in 0 blocks
==10882== total heap usage: 25 allocs, 25 frees, 11,859 bytes allocated
==10882==
==10882== All heap blocks were freed -- no leaks are possible
==10882==
==10882== For counts of detected and suppressed errors, rerun with: -v
==10882== Use --track-origins=yes to see where uninitialised values come from
==10882== ERROR SUMMARY: 4 errors from 4 contexts (suppressed: 0 from 0)
so there is probably a general issue lurking.
