https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79375
Bug ID: 79375 Summary: gcc/ipa-prop.c:203:32: runtime error: reference binding to null pointer of type 'struct vec' after revision r244802 Product: gcc Version: 7.0.1 Status: UNCONFIRMED Severity: normal Priority: P3 Component: ipa Assignee: unassigned at gcc dot gnu.org Reporter: dominiq at lps dot ens.fr CC: jamborm at gcc dot gnu.org Target Milestone: --- Compiling codes with -O and above with an instrumented compiler configured with Using built-in specs. COLLECT_GCC=gfcgp COLLECT_LTO_WRAPPER=/opt/gcc/gcc7gp/libexec/gcc/x86_64-apple-darwin16.4.0/7.0.1/lto-wrapper Target: x86_64-apple-darwin16.4.0 Configured with: ../p_work/configure --prefix=/opt/gcc/gcc7gp --enable-languages=c,c++,fortran --with-gmp=/opt/mp-new --with-system-zlib --with-isl=/opt/mp-new --disable-bootstrap --disable-multilib --disable-libstdcxx CFLAGS='-L/opt/gcc/gcc7a/lib -lasan -lubsan -fsanitize=address,undefined,leak -Og -g -fno-omit-frame-pointer' CXXFLAGS='-fsanitize=address,undefined,leak -Og -g -fno-omit-frame-pointer' LDFLAGS='-L/opt/gcc/gcc7a/lib -lasan -lubsan -ldl -lpthread' Thread model: posix gcc version 7.0.1 20170123 (experimental) [trunk revision 244802p2] (GCC) gives the following error [Book15] f90/bug% gfcgp /opt/gcc/_clean/gcc/testsuite/gfortran.dg/alloc_comp_class_5.f03 -O ../../p_work/gcc/ipa-prop.c:203:32: runtime error: reference binding to null pointer of type 'struct vec'