PR middle-end/71924 - missing -Wreturn-local-addr returning alloca result
PR middle-end/90549 - missing -Wreturn-local-addr maybe returning an address of a local array plus offset
gcc/ChangeLog:
PR middle-end/71924
PR middle-end/90549
* gimple-ssa-isolate-paths.c (isolate_path): Add attribute. Update
comment.
(args_loc_t): New type.
(args_loc_t, locmap_t): same.
(diag_returned_locals): New function.
(is_addr_local): Same.
(handle_return_addr_local_phi_arg, warn_return_addr_local): Same.
(find_implicit_erroneous_behavior): Call warn_return_addr_local_phi_arg.
(find_explicit_erroneous_behavior): Call warn_return_addr_local.
gcc/testsuite/ChangeLog:
PR middle-end/71924
PR middle-end/90549
* gcc.c-torture/execute/return-addr.c: New test.
* gcc.dg/Wreturn-local-addr-2.c: New test.
* gcc.dg/Wreturn-local-addr-4.c: New test.
* gcc.dg/Wreturn-local-addr-5.c: New test.
* gcc.dg/Wreturn-local-addr-6.c: New test.
* gcc.dg/Wreturn-local-addr-7.c: New test.
* gcc.dg/Wreturn-local-addr-8.c: New test.
* gcc.dg/Wreturn-local-addr-9.c: New test.
* gcc.dg/Wreturn-local-addr-10.c: New test.
* gcc.dg/Walloca-4.c: Handle expected warnings.
* gcc.dg/pr41551.c: Same.
* gcc.dg/pr59523.c: Same.
* gcc.dg/tree-ssa/pr88775-2.c: Same.
* gcc.dg/tree-ssa/alias-37.c: Same.
* gcc.dg/winline-7.c: Same.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@273261
138bc75d-0d04-0410-961f-
82ee72b054a4