https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109274
--- Comment #13 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:dd63bba0c8dc3a6ae06cfdc084bca7c68b8bbd39 commit r13-6906-gdd63bba0c8dc3a6ae06cfdc084bca7c68b8bbd39 Author: Andrew MacLeod <amacl...@redhat.com> Date: Fri Mar 24 11:21:20 2023 -0400 Fix compute_operand when op1 == op2 symbolically. First, class value_relation should not sanitize records. just create what is asked. Second., if there is not a relation record, compute_operand was creating one for op1 == op2 if op1 and op2 were the same symbol. This is not the correct way to communicate the information, as that record will continue to be passed along the GORI unwind chain. Instead, simply pass that information locally to the opX_range routine for only the current statement. PR tree-optimization/109265 PR tree-optimization/109274 gcc/ * gimple-range-gori.cc (gori_compute::compute_operand_range): Do not create a relation record is op1 and op2 are the same symbol. (gori_compute::compute_operand1_range): Pass op1 == op2 to the handler for this stmt, but create a new record only if this statement generates a relation based on the ranges. (gori_compute::compute_operand2_range): Ditto. * value-relation.h (value_relation::set_relation): Always create the record that is requested. gcc/testsuite/ * gcc.dg/pr109274.c: New. * gfortran.dg/pr109265.f90: New.
