[Bug c/69558] [6/7 Regression] glib2 warning pragmas stopped working

["dmalcolm at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69558

--- Comment #14 from David Malcolm <dmalcolm at gcc dot gnu.org> ---
Author: dmalcolm
Date: Tue Feb 23 17:39:16 2016
New Revision: 233637

URL: https://gcc.gnu.org/viewcvs?rev=233637&root=gcc&view=rev
Log:
Add test coverage for _Pragma (PR preprocessor 69126, 69543, 69558)

We had some regressions in the ability for _Pragma to disable a warning
(PR preprocessor/69126, PR preprocessor/69543, PR preprocessor/69558).

This patch attempts to add more test coverage for this, for the
various combinations of:
  - various warnings:
    -Wunused-variable
    -Wuninitialized
    -Wdeprecated-declarations
  - various combinations of location of _Pragma relative to location of
    the warning:
     - _Pragma is in a macro, warning isn't a macro
     - neither is in a macro
     - _Pragma isnt't in a macro, warning is in a macro
     - in different macros
     - both in the same macro
  - C vs C++ frontend.

It adds some XFAILs:
  - pr69543-1.c for C++ (fixed in the followup patch)
  - pr69543-3.c for both C and C++
  - pr69543-4.c for both C and C++
  - pr69558.c for C++ (moving it from gcc.dg to c-c++-common,
    marking it as xfail for C++ for now)

gcc/testsuite/ChangeLog:
        PR preprocessor/69126
        PR preprocessor/69543
        PR preprocessor/69558
        * c-c++-common/pr69126.c (MACRO_1, test_1): New.
        (f): Rename to...
        (test_2): ...this, and add leading comment.
        (MACRO_3, test_3): New.
        (MACRO_4A, MACRO_4B, test_4): New.
        (MACRO): Rename to...
        (MACRO_5): ...this.
        (g): Rename to...
        (test_5): ...this, updating for renaming of MACRO, and
        add leading comment.
        * c-c++-common/pr69543-1.c: New.
        * c-c++-common/pr69543-2.c: New.
        * c-c++-common/pr69543-3.c: New.
        * c-c++-common/pr69543-4.c: New.
        * c-c++-common/pr69558-1.c: New.
        * c-c++-common/pr69558-2.c: New.
        * c-c++-common/pr69558-3.c: New.
        * c-c++-common/pr69558-4.c: New.
        * gcc.dg/pr69558.c: Move to...
        * c-c++-common/pr69558.c: ...here.  Add dg-bogus directives, with
        xfail for c++.


Added:
    trunk/gcc/testsuite/c-c++-common/pr69543-1.c
    trunk/gcc/testsuite/c-c++-common/pr69543-2.c
    trunk/gcc/testsuite/c-c++-common/pr69543-3.c
    trunk/gcc/testsuite/c-c++-common/pr69543-4.c
    trunk/gcc/testsuite/c-c++-common/pr69558-1.c
    trunk/gcc/testsuite/c-c++-common/pr69558-2.c
    trunk/gcc/testsuite/c-c++-common/pr69558-3.c
    trunk/gcc/testsuite/c-c++-common/pr69558-4.c
    trunk/gcc/testsuite/c-c++-common/pr69558.c
      - copied, changed from r233636, trunk/gcc/testsuite/gcc.dg/pr69558.c
Removed:
    trunk/gcc/testsuite/gcc.dg/pr69558.c
Modified:
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/c-c++-common/pr69126.c