https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92715
--- Comment #4 from Martin Liška <marxin at gcc dot gnu.org> --- Created attachment 47391 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=47391&action=edit Reduced test-case Fails with: $ gfortran -O3 -march=znver2 mdbx.f90 mdbx.f90:9:16: 9 | PARAMETER NM=16384 | 1 Warning: Legacy Extension: PARAMETER without '()' at (1) mdbx.f90:12:18: 12 | DO j = 1,HD0 (i) | 1 Warning: Deleted feature: End expression in DO loop at (1) must be integer mdbx.f90:18:16: 18 | DO i = 1 , X0 | 1 Warning: Deleted feature: End expression in DO loop at (1) must be integer mdbx.f90:7:0: 7 | SUBROUTINE MSTEP | Error: position plus size exceeds size of referenced object in ‘bit_field_ref’ _13 = BIT_FIELD_REF <_68, 256, 0>; during GIMPLE pass: forwprop mdbx.f90:7:0: internal compiler error: verify_gimple failed 0xe9f031 verify_gimple_in_cfg(function*, bool) /home/marxin/Programming/gcc/gcc/tree-cfg.c:5445 0xd7a3ef execute_function_todo /home/marxin/Programming/gcc/gcc/passes.c:1983 0xd7b19e execute_todo /home/marxin/Programming/gcc/gcc/passes.c:2037 Please submit a full bug report, with preprocessed source if appropriate. Please include the complete backtrace with any bug report. See <https://gcc.gnu.org/bugs/> for instructions.
