r245070 - in /trunk/gcc: ChangeLog input.c test...

[dmalcolm@gcc.gnu.org]

Author: dmalcolm
Date: Tue Jan 31 20:22:43 2017
New Revision: 245070

URL: https://gcc.gnu.org/viewcvs?rev=245070&root=gcc&view=rev
Log:
Prevent ICEs due to bogus substring locations (PR preprocessor/79210)

gcc/ChangeLog:
	PR preprocessor/79210
	* input.c (get_substring_ranges_for_loc): Replace line_width
	assertion with error-handling.

gcc/testsuite/ChangeLog:
	PR preprocessor/79210
	* gcc.dg/format/pr79210.c: New test case.
	* gcc.dg/plugin/diagnostic-test-string-literals-2.c (test_pr79210):
	New function.


Added:
    trunk/gcc/testsuite/gcc.dg/format/pr79210.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/input.c
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gcc.dg/plugin/diagnostic-test-string-literals-2.c