https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110514
--- Comment #1 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Iain Buclaw <ibuc...@gcc.gnu.org>: https://gcc.gnu.org/g:61b1c562f8c703bff045e91257120e42b7fae523 commit r14-2234-g61b1c562f8c703bff045e91257120e42b7fae523 Author: Iain Buclaw <ibuc...@gdcproject.org> Date: Sat Jul 1 23:32:53 2023 +0200 d: Fix accesses of immutable arrays using constant index still bounds checked Starts setting TREE_READONLY against specific kinds of VAR_DECLs, so that the middle-end/optimization passes can more aggressively constant fold D code that makes use of `immutable' or `const'. PR d/110514 gcc/d/ChangeLog: * decl.cc (get_symbol_decl): Set TREE_READONLY on certain kinds of const and immutable variables. * expr.cc (ExprVisitor::visit (ArrayLiteralExp *)): Set TREE_READONLY on immutable dynamic array literals. gcc/testsuite/ChangeLog: * gdc.dg/pr110514a.d: New test. * gdc.dg/pr110514b.d: New test. * gdc.dg/pr110514c.d: New test. * gdc.dg/pr110514d.d: New test.