r279248 - in /trunk/gcc: ChangeLog builtins.c t...

[msebor@gcc.gnu.org]

Author: msebor
Date: Wed Dec 11 19:50:43 2019
New Revision: 279248

URL: https://gcc.gnu.org/viewcvs?rev=279248&root=gcc&view=rev
Log:

gcc/ChangeLog:

	* builtins.c (compute_objsize): Add an argument and set it to offset
	into destination.
	* builtins.h (compute_objsize): Add an argument.
	* tree-object-size.c (addr_object_size): Add an argument and set it
	to offset into destination.
	(compute_builtin_object_size): Same.
	* tree-object-size.h (compute_builtin_object_size): Add an argument.
	* tree-ssa-strlen.c (get_addr_stridx): Add an argument and set it
	to offset into destination.
	(maybe_warn_overflow): New function.
	(handle_store): Call maybe_warn_overflow to issue warnings.

gcc/testsuite/ChangeLog:

	* c-c++-common/Wstringop-overflow-2.c: Adjust text of expected messages.
	* g++.dg/warn/Wstringop-overflow-3.C: Same.
	* gcc.dg/Wstringop-overflow-17.c: Same.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/builtins.c
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/c-c++-common/Wstringop-overflow-2.c
    trunk/gcc/testsuite/g++.dg/warn/Wstringop-overflow-3.C
    trunk/gcc/testsuite/gcc.dg/Wstringop-overflow-17.c
    trunk/gcc/tree-object-size.c
    trunk/gcc/tree-object-size.h
    trunk/gcc/tree-ssa-strlen.c