https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110112
--- Comment #6 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-13 branch has been updated by David Malcolm <dmalc...@gcc.gnu.org>: https://gcc.gnu.org/g:89feb3557a018893cfe50c2e07f91559bd3cde2b commit r13-8741-g89feb3557a018893cfe50c2e07f91559bd3cde2b Author: David Malcolm <dmalc...@redhat.com> Date: Thu May 9 13:09:26 2024 -0400 analyzer: add caching to globals with initializers [PR110112] PR analyzer/110112 notes that -fanalyzer is extremely slow on a source file with large read-only static arrays, repeatedly building the same compound_svalue representing the full initializer, and repeatedly building svalues representing parts of the the full initialiazer. This patch adds caches for both of these; together they reduce the time taken by -fanalyzer -O2 on the testcase in the bug for an optimized build: 91.2s : no caches (status quo) 32.4s : cache in decl_region::get_svalue_for_constructor 3.7s : cache in region::get_initial_value_at_main 3.1s : both caches (this patch) gcc/analyzer/ChangeLog: PR analyzer/110112 * region-model.cc (region_model::get_initial_value_for_global): Move code to region::calc_initial_value_at_main. * region.cc (region::get_initial_value_at_main): New function. (region::calc_initial_value_at_main): New function, based on code in region_model::get_initial_value_for_global. (region::region): Initialize m_cached_init_sval_at_main. (decl_region::get_svalue_for_constructor): Add a cache, splitting out body to... (decl_region::calc_svalue_for_constructor): ...this new function. * region.h (region::get_initial_value_at_main): New decl. (region::calc_initial_value_at_main): New decl. (region::m_cached_init_sval_at_main): New field. (decl_region::decl_region): Initialize m_ctor_svalue. (decl_region::calc_svalue_for_constructor): New decl. (decl_region::m_ctor_svalue): New field. (cherry picked from commit r14-1664-gfe9771b59f576f) Signed-off-by: David Malcolm <dmalc...@redhat.com>
