https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91568
Bug ID: 91568 Summary: internal compiler error: in vect_schedule_slp_instance, at tree-vect-slp.c:3922 Product: gcc Version: 9.2.1 Status: UNCONFIRMED Severity: normal Priority: P3 Component: tree-optimization Assignee: unassigned at gcc dot gnu.org Reporter: wala1 at illinois dot edu Target Milestone: --- Created attachment 46767 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=46767&action=edit helmrouts3d.f file causing internal compile error Hi, The attached file leads to an internal compile error when compiled as follows: $ gfortran -Wall -g -ffixed-form -fno-second-underscore -fPIC -std=legacy -Ofast -fopenmp helmrouts3d.f ... during GIMPLE pass: vect helmrouts3d.f:717:0: 717 | subroutine h3dall(nterms,z,scale,hvec,ifder,hder) | internal compiler error: in vect_schedule_slp_instance, at tree-vect-slp.c:3922 0x7f249db9c09a __libc_start_main ../csu/libc-start.c:308 Please submit a full bug report, with preprocessed source if appropriate. Please include the complete backtrace with any bug report. See <file:///usr/share/doc/gcc-9/README.Bugs> for instructions. Version: $ gfortran -v Using built-in specs. COLLECT_GCC=gfortran COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/9/lto-wrapper OFFLOAD_TARGET_NAMES=nvptx-none:hsa OFFLOAD_TARGET_DEFAULT=1 Target: x86_64-linux-gnu Configured with: ../src/configure -v --with-pkgversion='Debian 9.2.1-4' --with-bugurl=file:///usr/share/doc/gcc-9/README.Bugs --enable-languages=c,ada,c++,go,brig,d,fortran,objc,obj-c++,gm2 --prefix=/usr --with-gcc-major-version-only --program-suffix=-9 --program-prefix=x86_64-linux-gnu- --enable-shared --enable-linker-build-id --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --libdir=/usr/lib --enable-nls --enable-bootstrap --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --with-default-libstdcxx-abi=new --enable-gnu-unique-object --disable-vtable-verify --enable-plugin --enable-default-pie --with-system-zlib --with-target-system-zlib=auto --enable-multiarch --disable-werror --with-arch-32=i686 --with-abi=m64 --with-multilib-list=m32,m64,mx32 --enable-multilib --with-tune=generic --enable-offload-targets=nvptx-none,hsa --without-cuda-driver --enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu Thread model: posix gcc version 9.2.1 20190821 (Debian 9.2.1-4)