[Bug preprocessor/78324] Valgrind issues seen with gcc.dg/tree-ssa/builtin-sprintf-2.c

[dmalcolm at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78324

--- Comment #5 from David Malcolm <dmalcolm at gcc dot gnu.org> ---
Author: dmalcolm
Date: Mon Nov 21 15:50:38 2016
New Revision: 242667

URL: https://gcc.gnu.org/viewcvs?rev=242667&root=gcc&view=rev
Log:
substring_loc info needs default track-macro-expansion (PR preprocessor/78324)

gcc/ChangeLog:
        PR preprocessor/78324
        * input.c (get_substring_ranges_for_loc): Fail gracefully if
        -ftrack-macro-expansion has a value other than 2.

gcc/testsuite/ChangeLog:
        PR preprocessor/78324
        * gcc.dg/plugin/diagnostic-test-string-literals-1.c
        (test_multitoken_macro): New function.
        * gcc.dg/plugin/diagnostic-test-string-literals-3.c: New test
        case.
        * gcc.dg/plugin/diagnostic-test-string-literals-4.c: New test
        case.
        * gcc.dg/plugin/plugin.exp (plugin_test_list): Add the new test
        cases.
        * gcc.dg/tree-ssa/builtin-sprintf-warn-1.c (test_sprintf_note):
        Move to...
        * gcc.dg/tree-ssa/builtin-sprintf-warn-4.c: ...here.  Drop
        -ftrack-macro-expansion=0.
        (test_sprintf_note): Remove "P" macro.  Add
        dg-begin/end-multiline-output directives.
        (LINE, buffer, ptr): Copy from builtin-sprintf-warn-1.c.


Added:
    trunk/gcc/testsuite/gcc.dg/plugin/diagnostic-test-string-literals-3.c
    trunk/gcc/testsuite/gcc.dg/plugin/diagnostic-test-string-literals-4.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/input.c
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gcc.dg/plugin/diagnostic-test-string-literals-1.c
    trunk/gcc/testsuite/gcc.dg/plugin/plugin.exp
    trunk/gcc/testsuite/gcc.dg/tree-ssa/builtin-sprintf-warn-1.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/builtin-sprintf-warn-4.c