[flang-dev] Can not build SPEC CPU 2017 fpspeed with -fopenmp

[Chan Edison via flang-dev]

The tuning part of my CFP2017 speed config:

intspeed,fpspeed:
    EXTRA_OPTIMIZE = -fopenmp -DSPEC_OPENMP
fpspeed:
    preENV_OMP_STACKSIZE = 128M

###############################################################################
#--------  Baseline Tuning Flags ----------------------------------------------
###############################################################################
default=base:               # flags for all base
       OPTIMIZE                = -Ofast -march=znver2 -fno-finite-math-only

    LIBS        = -L/home/edison/Downloads/llvm-project/build/lib/ -lFortranSemantics -lFortranRuntime -lFortranCommon \
                  -lFortranDecimal  -lFortranEvaluate  -lFortranEvaluateTesting  -lFortranParser -L/home/edison/Downloads/llvm-project/build/lib/ -lomp -lopenmp

The error output:
/home/edison/cpu2017/bin/specperl /home/edison/cpu2017/bin/harness/specpp -DSPEC -DNDEBUG -DSPEC_OPENMP -DSPEC_LP64 fill1.F -o fill1.fppized.f
/home/edison/cpu2017/bin/specperl /home/edison/cpu2017/bin/harness/specpp -DSPEC -DNDEBUG -DSPEC_OPENMP -DSPEC_LP64 fill2.F -o fill2.fppized.f
/home/edison/cpu2017/bin/specperl /home/edison/cpu2017/bin/harness/specpp -DSPEC -DNDEBUG -DSPEC_OPENMP -DSPEC_LP64 jacobian_lam.F -o jacobian_lam.fppized.f
/home/edison/cpu2017/bin/specperl /home/edison/cpu2017/bin/harness/specpp -DSPEC -DNDEBUG -DSPEC_OPENMP -DSPEC_LP64 flow_lam.F -o flow_lam.fppized.f
/home/edison/cpu2017/bin/specperl /home/edison/cpu2017/bin/harness/specpp -DSPEC -DNDEBUG -DSPEC_OPENMP -DSPEC_LP64 flux_lam.F -o flux_lam.fppized.f
/home/edison/cpu2017/bin/specperl /home/edison/cpu2017/bin/harness/specpp -DSPEC -DNDEBUG -DSPEC_OPENMP -DSPEC_LP64 block_solver.F -o block_solver.fppized.f
/home/edison/cpu2017/bin/specperl /home/edison/cpu2017/bin/harness/specpp -DSPEC -DNDEBUG -DSPEC_OPENMP -DSPEC_LP64 shell_lam.F -o shell_lam.fppized.f
/home/edison/llvm/bin/f18               -std=f2008ts    -m64 -c -o shell_lam.fppized.o -Ofast -march=znver2 -fno-finite-math-only -fopenmp shell_lam.fppized.f
shell_lam.fppized.f:192:29: error: Internal: no symbol found for 'max'
  !$OMP+            REDUCTION(MAX:t8)
                              ^^^
/home/edison/llvm/bin/f18: semantic errors in shell_lam.fppized.f
specmake: *** [/home/edison/cpu2017/benchspec/Makefile.defaults:391: shell_lam.fppized.o] Error 1
specmake: *** Waiting for unfinished jobs....
/home/edison/llvm/bin/f18               -std=f2008ts    -m64 -c -o fill1.fppized.o -Ofast -march=znver2 -fno-finite-math-only -fopenmp fill1.fppized.f
/home/edison/llvm/bin/f18               -std=f2008ts    -m64 -c -o flow_lam.fppized.o -Ofast -march=znver2 -fno-finite-math-only -fopenmp flow_lam.fppized.f
/home/edison/llvm/bin/f18               -std=f2008ts    -m64 -c -o fill2.fppized.o -Ofast -march=znver2 -fno-finite-math-only -fopenmp fill2.fppized.f
/home/edison/llvm/bin/f18               -std=f2008ts    -m64 -c -o jacobian_lam.fppized.o -Ofast -march=znver2 -fno-finite-math-only -fopenmp jacobian_lam.fppized.f
/home/edison/llvm/bin/f18               -std=f2008ts    -m64 -c -o block_solver.fppized.o -Ofast -march=znver2 -fno-finite-math-only -fopenmp block_solver.fppized.f
/home/edison/llvm/bin/f18               -std=f2008ts    -m64 -c -o flux_lam.fppized.o -Ofast -march=znver2 -fno-finite-math-only -fopenmp flux_lam.fppized.f

My LLVM(flang/F18) is git from the master branch(git clone https://github.com/llvm/llvm-project.git) and make with this cmake config:
cmake -G "Unix Makefiles" \
-DCMAKE_INSTALL_PREFIX=$INSTALL_PREFIX \
-DLLVM_CONFIG=$INSTALL_PREFIX/bin/llvm-config \
-DCMAKE_BUILD_TYPE=Release \
-DLLVM_TARGETS_TO_BUILD=X86 \
-DFLANG_INCLUDE_TESTS=On \
-DLLVM_ENABLE_PROJECTS="clang;clang++;lld;flang;flang-driver;libcxx;libcxxabi;openmp" \
-DBUILD_FLANG_NEW_DRIVER=ON \
-LIBOMP_FORTRAN_MODULES=ON \
-DCMAKE_C_COMPILER=gcc \
-DCMAKE_CXX_COMPILER=g++ \
../llvm

If whitout -fopenmp, the 603.bwaves_s can be build and run successful but whit only one thread.

I have ran successful CPU2017 with AOCC 2.2 which is based on LLVM 10, but now I want to try it on the last LLVM.
I know there is some other error with this config, but I hope fix the OMP part first.
My OS: Ubuntu 20.10 x86_64, CPU AMD Ryzen 7 X3800.


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