https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106654
--- Comment #17 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:53e6d7a3102409f0f2a5a9ffbfbeaa62c135d991 commit r13-3394-g53e6d7a3102409f0f2a5a9ffbfbeaa62c135d991 Author: Andrew MacLeod <amacl...@redhat.com> Date: Tue Oct 18 16:29:49 2022 -0400 Add assume support to VRP. This provides an assume_query class using rangers GORI module to determine what ranges would be applied to any SSA NAMES in the function if the return value were [1, 1]. Any parameter ranges are stored in the SSA_NAME_RANGE_INFO field, and ranger's inferred range machinery is then used to look these up and match them to assume call parameteres in the bodies of other functions.. PR c++/106654 gcc/ * gimple-range-gori.h (compute_operand_range): Make public. * gimple-range-infer.cc (gimple_infer_range::check_assume_func): New. (gimple_infer_range::gimple_infer_range): Check for assume calls. * gimple-range-infer.h (check_assume_func): Add prototype. * gimple-range.cc (assume_query::assume_range_p): New. (assume_query::range_of_expr): New. (assume_query::assume_query): New. (assume_query::calculate_op): New. (assume_query::calculate_phi): New. (assume_query::check_taken_edge): New. (assume_query::calculate_stmt): New. (assume_query::dump): New. * gimple-range.h (class assume_query): New. * tree-vrp.cc (pass_assumptions::execute): Add processing. gcc/testsuite/ * g++.dg/cpp23/attr-assume-opt.C: New.
