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This rather obvious patch fixes an ICE on valid which came about because I did not handle EXEC_IOLENGTH as start of an I/O statement when checking for the DO loop variable. This is an 11 regression. gcc/fortran/ChangeLog: PR fortran/99345 * frontend-passes.c (doloop_contained_procedure_code): Properly handle EXEC_IOLENGTH. gcc/testsuite/ChangeLog: PR fortran/99345 * gfortran.dg/do_check_16.f90: New test. * gfortran.dg/do_check_17.f90: New test.
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