[llvm-bugs] [Bug 25679] New: openmp code prevents lto bootstrap

via llvm-bugs llvm-bugs at lists.llvm.org
Mon Nov 30 05:22:18 PST 2015


https://llvm.org/bugs/show_bug.cgi?id=25679

            Bug ID: 25679
           Summary: openmp code prevents lto bootstrap
           Product: OpenMP
           Version: unspecified
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: Runtime Library
          Assignee: unassignedbugs at nondot.org
          Reporter: ismail at i10z.com
                CC: llvm-bugs at lists.llvm.org
    Classification: Unclassified

Trying to compile clang with -flto -fuse-ld=gold on Linux x86-64 results in:

FAILED: : && /opt/clang/bin/clang  -fPIC -fuse-ld=gold -flto -Wall -W
-Wno-unused-parameter -Wwrite-strings -Wmissing-field-initializers -pedantic
-Wno-long-long -Wno-comment -fcolor-diagnostics -O3  -stdlib=libc++ -Wl,-z,defs
 -Wl,--warn-shared-textrel -Wl,--as-needed
-Wl,--version-script=/home/abuild/rpmbuild/BUILD/llvm/projects/openmp/runtime/src/exports_so.txt
-static-libgcc -Wl,-z,noexecstack -Wl,-fini=__kmp_internal_end_fini -shared
-Wl,-soname,libomp.so -o lib64/libomp.so
projects/openmp/runtime/src/CMakeFiles/omp.dir/kmp_alloc.c.o
projects/openmp/runtime/src/CMakeFiles/omp.dir/kmp_atomic.c.o
projects/openmp/runtime/src/CMakeFiles/omp.dir/kmp_csupport.c.o
projects/openmp/runtime/src/CMakeFiles/omp.dir/kmp_debug.c.o
projects/openmp/runtime/src/CMakeFiles/omp.dir/kmp_itt.c.o
projects/openmp/runtime/src/CMakeFiles/omp.dir/kmp_environment.c.o
projects/openmp/runtime/src/CMakeFiles/omp.dir/kmp_error.c.o
projects/openmp/runtime/src/CMakeFiles/omp.dir/kmp_global.c.o
projects/openmp/runtime/src/CMakeFiles/omp.dir/kmp_i18n.c.o
projects/openmp/runtime/src/CMakeFiles/omp.dir/kmp_io.c.o
projects/openmp/runtime/src/CMakeFiles/omp.dir/kmp_runtime.c.o
projects/openmp/runtime/src/CMakeFiles/omp.dir/kmp_settings.c.o
projects/openmp/runtime/src/CMakeFiles/omp.dir/kmp_str.c.o
projects/openmp/runtime/src/CMakeFiles/omp.dir/kmp_tasking.c.o
projects/openmp/runtime/src/CMakeFiles/omp.dir/kmp_taskq.c.o
projects/openmp/runtime/src/CMakeFiles/omp.dir/kmp_threadprivate.c.o
projects/openmp/runtime/src/CMakeFiles/omp.dir/kmp_utility.c.o
projects/openmp/runtime/src/CMakeFiles/omp.dir/z_Linux_util.c.o
projects/openmp/runtime/src/CMakeFiles/omp.dir/kmp_gsupport.c.o
projects/openmp/runtime/src/CMakeFiles/omp.dir/thirdparty/ittnotify/ittnotify_static.c.o
projects/openmp/runtime/src/CMakeFiles/omp.dir/kmp_ftn_cdecl.c.o
projects/openmp/runtime/src/CMakeFiles/omp.dir/kmp_ftn_extra.c.o
projects/openmp/runtime/src/CMakeFiles/omp.dir/kmp_version.c.o
projects/openmp/runtime/src/CMakeFiles/omp.dir/kmp_barrier.cpp.o
projects/openmp/runtime/src/CMakeFiles/omp.dir/kmp_wait_release.cpp.o
projects/openmp/runtime/src/CMakeFiles/omp.dir/kmp_affinity.cpp.o
projects/openmp/runtime/src/CMakeFiles/omp.dir/kmp_dispatch.cpp.o
projects/openmp/runtime/src/CMakeFiles/omp.dir/kmp_lock.cpp.o
projects/openmp/runtime/src/CMakeFiles/omp.dir/kmp_sched.cpp.o
projects/openmp/runtime/src/CMakeFiles/omp.dir/kmp_taskdeps.cpp.o
projects/openmp/runtime/src/CMakeFiles/omp.dir/kmp_cancel.cpp.o
projects/openmp/runtime/src/CMakeFiles/omp.dir/z_Linux_asm.s.o  -lpthread -ldl
-Wl,-rpath,"\$ORIGIN/../lib64" && cd
/home/abuild/rpmbuild/BUILD/llvm/stage1/lib64 && /usr/bin/cmake -E
create_symlink libomp.so libgomp.so && /usr/bin/cmake -E create_symlink
libomp.so libiomp5.so && cd
/home/abuild/rpmbuild/BUILD/llvm/stage1/projects/openmp/runtime/src &&
/usr/bin/cmake -E make_directory
/home/abuild/rpmbuild/BUILD/llvm/projects/openmp/runtime/exports/common/include
&& /usr/bin/cmake -E copy omp.h
/home/abuild/rpmbuild/BUILD/llvm/projects/openmp/runtime/exports/common/include
&& cd /home/abuild/rpmbuild/BUILD/llvm/stage1/projects/openmp/runtime/src &&
/usr/bin/cmake -E make_directory
/home/abuild/rpmbuild/BUILD/llvm/projects/openmp/runtime/exports/lin_32e/lib &&
/usr/bin/cmake -E copy /home/abuild/rpmbuild/BUILD/llvm/stage1/lib64/libomp.so
/home/abuild/rpmbuild/BUILD/llvm/projects/openmp/runtime/exports/lin_32e/lib
LLVM gold plugin: <unknown>:0:0: loop not vectorized: cannot prove it is safe
to reorder memory operations
LLVM ERROR: A @@ version cannot be undefined
clang-3.8: error: linker command failed with exit code 1 (use -v to see
invocation)

Probably related to llvm bug#24023

-- 
You are receiving this mail because:
You are on the CC list for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.llvm.org/pipermail/llvm-bugs/attachments/20151130/fea79008/attachment.html>


More information about the llvm-bugs mailing list