https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107679
Bug ID: 107679 Summary: [13 Regression] ICE in maybe_register_def, at tree-into-ssa.cc:1914 Product: gcc Version: 13.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: fortran Assignee: unassigned at gcc dot gnu.org Reporter: gs...@t-online.de Target Milestone: --- Started between 20220918 and 20220925, at -O1+ : (gcc configured with --enable-checking=yes) $ cat z1.f90 subroutine s1(x) integer, intent(out) :: x end subroutine s2(z) integer, value :: z call s1(z) end $ cat z2.f90 subroutine s1(x) integer, intent(out) :: x x = 3 end subroutine s2(z) integer, value :: z call s1(z) end $ gfortran-13-20221106 -c z1.f90 -O2 during GIMPLE pass: ccp z1.f90:7:3: 7 | end | ^ internal compiler error: in maybe_register_def, at tree-into-ssa.cc:1914 0xffb188 maybe_register_def ../../gcc/tree-into-ssa.cc:1914 0xffb188 rewrite_update_stmt ../../gcc/tree-into-ssa.cc:2063 0xffb188 rewrite_update_dom_walker::before_dom_children(basic_block_def*) ../../gcc/tree-into-ssa.cc:2236 0x1cce2a7 dom_walker::walk(basic_block_def*) ../../gcc/domwalk.cc:311 0xff80e9 rewrite_blocks ../../gcc/tree-into-ssa.cc:2296 0xfff24e update_ssa(unsigned int) ../../gcc/tree-into-ssa.cc:3581 0x11f022e execute_update_addresses_taken() ../../gcc/tree-ssa.cc:2177 0xe47700 execute_function_todo ../../gcc/passes.cc:2066 0xe480b2 execute_todo ../../gcc/passes.cc:2145