[Bug middle-end/90549] missing -Wreturn-local-addr maybe returning an address of a local array plus offset
msebor at gcc dot gnu.org
gcc-bugzilla@gcc.gnu.org
Tue Jul 9 04:16:00 GMT 2019
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90549
--- Comment #5 from Martin Sebor <msebor at gcc dot gnu.org> ---
Author: msebor
Date: Tue Jul 9 04:15:42 2019
New Revision: 273261
URL: https://gcc.gnu.org/viewcvs?rev=273261&root=gcc&view=rev
Log:
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.
Added:
trunk/gcc/testsuite/gcc.c-torture/execute/return-addr.c
trunk/gcc/testsuite/gcc.dg/Wreturn-local-addr-10.c
trunk/gcc/testsuite/gcc.dg/Wreturn-local-addr-2.c
trunk/gcc/testsuite/gcc.dg/Wreturn-local-addr-3.c
trunk/gcc/testsuite/gcc.dg/Wreturn-local-addr-4.c
trunk/gcc/testsuite/gcc.dg/Wreturn-local-addr-5.c
trunk/gcc/testsuite/gcc.dg/Wreturn-local-addr-6.c
trunk/gcc/testsuite/gcc.dg/Wreturn-local-addr-7.c
trunk/gcc/testsuite/gcc.dg/Wreturn-local-addr-8.c
trunk/gcc/testsuite/gcc.dg/Wreturn-local-addr-9.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/gimple-ssa-isolate-paths.c
trunk/gcc/testsuite/ChangeLog
trunk/gcc/testsuite/gcc.dg/Walloca-4.c
trunk/gcc/testsuite/gcc.dg/pr41551.c
trunk/gcc/testsuite/gcc.dg/pr59523.c
trunk/gcc/testsuite/gcc.dg/tree-ssa/alias-37.c
trunk/gcc/testsuite/gcc.dg/tree-ssa/pr88775-2.c
trunk/gcc/testsuite/gcc.dg/winline-7.c
trunk/libgcc/generic-morestack.c
More information about the Gcc-bugs
mailing list