r256217 - in /trunk/gcc: ChangeLog calls.c gimp...

[msebor@gcc.gnu.org]

Author: msebor
Date: Wed Jan  3 22:52:53 2018
New Revision: 256217

URL: https://gcc.gnu.org/viewcvs?rev=256217&root=gcc&view=rev
Log:
PR tree-optimization/83603 - ICE in builtin_memref at gcc/gimple-ssa-warn-restrict.c:238

gcc/ChangeLog:

	PR tree-optimization/83603
	* calls.c (maybe_warn_nonstring_arg): Avoid accessing function
	arguments past the endof the argument list in functions declared
	without a prototype.
	* gimple-ssa-warn-restrict.c (wrestrict_dom_walker::check_call):
	Avoid checking when arguments are null.

gcc/testsuite/ChangeLog:

	PR tree-optimization/83603
	* gcc.dg/Wrestrict-4.c: New test.


Added:
    trunk/gcc/testsuite/gcc.dg/Wrestrict-4.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/calls.c
    trunk/gcc/gimple-ssa-warn-restrict.c
    trunk/gcc/testsuite/ChangeLog