r274022 - in /branches/gcc-9-branch/gcc: c/Chan...

[msebor@gcc.gnu.org]

Author: msebor
Date: Fri Aug  2 17:05:34 2019
New Revision: 274022

URL: https://gcc.gnu.org/viewcvs?rev=274022&root=gcc&view=rev
Log:
Backport from mainline

PR c/90737 - [8/9/10 Regression] inconsistent address of a local converted to intptr_t between callee and caller

gcc/c/ChangeLog:

	PR c/90737
	* c-typeck.c (c_finish_return): Only consider functions returning
	pointers as candidates for -Wreturn-local-addr.

gcc/cp/ChangeLog:

	PR c/90737
	* typeck.c (maybe_warn_about_returning_address_of_local): Only
	consider functions returning pointers as candidates for
	-Wreturn-local-addr.

gcc/testsuite/ChangeLog:

	PR c/90737
	* c-c++-common/Wreturn-local-addr.c: New test.
	* g++.dg/warn/Wreturn-local-addr-6.C: New test.


Added:
    branches/gcc-9-branch/gcc/testsuite/c-c++-common/Wreturn-local-addr.c
    branches/gcc-9-branch/gcc/testsuite/g++.dg/warn/Wreturn-local-addr-6.C
Modified:
    branches/gcc-9-branch/gcc/c/ChangeLog
    branches/gcc-9-branch/gcc/c/c-typeck.c
    branches/gcc-9-branch/gcc/cp/ChangeLog
    branches/gcc-9-branch/gcc/cp/typeck.c
    branches/gcc-9-branch/gcc/testsuite/ChangeLog