https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117060
Bug ID: 117060 Summary: internal compiler error: in as_a, at is-a.h:255 Product: gcc Version: 15.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: fortran Assignee: unassigned at gcc dot gnu.org Reporter: mario-baumann at web dot de Target Milestone: --- Created attachment 59308 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=59308&action=edit Fortran source file Hi, following fortran source procudes ICE with -O2 and -O3, smaller optimisation works fine. > /opt/Gcc/15.0.0/bin/gfortran -O2 -c foo.F during GIMPLE pass: vect foo.F:1:20: 1 | subroutine foo (out) | ^ internal compiler error: in as_a, at is-a.h:255 --- > /opt/Gcc/15.0.0/bin/gfortran -v Using built-in specs. COLLECT_GCC=/opt/Gcc/15.0.0/bin/gfortran COLLECT_LTO_WRAPPER=/opt/Gcc/15.0.0/libexec/gcc/x86_64-apple-darwin21/15.0.0/lto-wrapper Target: x86_64-apple-darwin21 Configured with: /opt/Gcc/15.0.0/.src/configure --prefix=/opt/Gcc/15.0.0 --build=x86_64-apple-darwin21 --enable-languages=c,c++,fortran --enable-lto --enable-stage1-checking --enable-libstdcxx-time --disable-nls --disable-libquadmath --disable-libquadmath-support --with-sysroot=/opt/Gcc/15.0.0/.sys --with-ld=/opt/local/bin/ld --with-ar=/opt/local/bin/ar --with-as=/opt/local/bin/as --with-system-zlib --with-pkgversion=git-revision-214303 Thread model: posix Supported LTO compression algorithms: zlib gcc version 15.0.0 20241010 (experimental) (git-revision-214303)