https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109417
--- Comment #5 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Andrew Macleod <amacl...@gcc.gnu.org>: https://gcc.gnu.org/g:40c7f943e882e8c5eccf45fc28146559f446764d commit r14-271-g40c7f943e882e8c5eccf45fc28146559f446764d Author: Andrew MacLeod <amacl...@redhat.com> Date: Tue Apr 25 15:33:52 2023 -0400 Don't save ssa-name pointer in dependency cache. If the direct dependence fields point directly to an ssa-name, its possible that an optimization frees an ssa-name, and the value pointed to may now be in the free list. Simply maintain the ssa version number instead. PR tree-optimization/109417 * gimple-range-gori.cc (range_def_chain::register_dependency): Save the ssa version number, not the pointer. (gori_compute::may_recompute_p): No need to check if a dependency is in the free list. * gimple-range-gori.h (class range_def_chain): Change ssa1 and ssa2 fields to be unsigned int instead of trees. (ange_def_chain::depend1): Adjust. (ange_def_chain::depend2): Adjust. * gimple-range.h: Include "ssa.h" to inline ssa_name().
