https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97515
--- 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:e86fd6a17cdb26710d1f13c9a47a3878c76028f9 commit r11-4724-ge86fd6a17cdb26710d1f13c9a47a3878c76028f9 Author: Andrew MacLeod <amacl...@redhat.com> Date: Wed Nov 4 12:59:15 2020 -0500 Add Ranger temporal cache Add a timestamp to supplement the global range cache to detect when a value may become stale. gcc/ PR tree-optimization/97515 * gimple-range-cache.h (class ranger_cache): New prototypes plus temporal cache pointer. * gimple-range-cache.cc (struct range_timestamp): New. (class temporal_cache): New. (temporal_cache::temporal_cache): New. (temporal_cache::~temporal_cache): New. (temporal_cache::get_timestamp): New. (temporal_cache::set_dependency): New. (temporal_cache::temporal_value): New. (temporal_cache::current_p): New. (temporal_cache::set_timestamp): New. (temporal_cache::set_always_current): New. (ranger_cache::ranger_cache): Allocate the temporal cache. (ranger_cache::~ranger_cache): Free temporal cache. (ranger_cache::get_non_stale_global_range): New. (ranger_cache::set_global_range): Add a timestamp. (ranger_cache::register_dependency): New. Add timestamp dependency. * gimple-range.cc (gimple_ranger::range_of_range_op): Add operand dependencies. (gimple_ranger::range_of_phi): Ditto. (gimple_ranger::range_of_stmt): Check if global range is stale, and recalculate if so. gcc/testsuite/ * gcc.dg/pr97515.c: Check listing for folding of entire function.
