https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100781
--- Comment #7 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:715914d3f9e4e40af58d22103c7650cdd720ef92 commit r12-1137-g715914d3f9e4e40af58d22103c7650cdd720ef92 Author: Andrew MacLeod <amacl...@redhat.com> Date: Mon May 31 12:13:50 2021 -0400 Do not calculate new values when evaluating a debug statement. Add a flag to enable/disable immediately improving poor values found during cache propagation. Then disable it when processing debug statements. gcc/ PR tree-optimization/100781 * gimple-range-cache.cc (ranger_cache::ranger_cache): Enable new value calculation by default. (ranger_cache::enable_new_values): New. (ranger_cache::disable_new_values): New. (ranger_cache::push_poor_value): Check if new values are allowed. * gimple-range-cache.h (class ranger_cache): New member/methods. * gimple-range.cc (gimple_ranger::range_of_expr): Check for debug statement, and disable/renable new value calculation. gcc/testsuite/ PR tree-optimization/100781 * gcc.dg/pr100781.c: New.
