[Bug c/27747] New: [4.2 Regression] ice _Pragma and macros

[Bug c/27747] New: [4.2 Regression] ice _Pragma and macros

[pinskia at gcc dot gnu dot org]

Testcase:

#define push _Pragma ("pack(push)")
#define push1 _Pragma ("pack(push)")

push1

------------------------------------------------------------------
This ICEs like:
pc64:~> ~/newtest/bin/gcc t.c
t.c:4: internal compiler error: in c_parser_consume_token, at c-parser.c:639
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.

I will file a different bug for C++ since it is rejected there instead.


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           Summary: [4.2 Regression] ice _Pragma and macros
           Product: gcc
           Version: 4.2.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: pinskia at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27747

[Bug c/27747] [4.2 Regression] ice _Pragma and macros

[pinskia at gcc dot gnu dot org]

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pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
      Known to fail|                            |4.2.0
      Known to work|                            |4.1.0
   Target Milestone|---                         |4.2.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27747

[Bug c/27747] [4.2 Regression] ice _Pragma and macros

[pinskia at gcc dot gnu dot org]

------- Comment #1 from pinskia at gcc dot gnu dot org  2006-05-24 03:31 -------
Janis, could you do a regression hunt on this bug?  (This is the C version of
PR 27748).


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pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |janis at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27747

[Bug c/27747] [4.2 Regression] ice _Pragma and macros

[pinskia at gcc dot gnu dot org]

------- Comment #2 from pinskia at gcc dot gnu dot org  2006-05-24 03:33 -------
I should note this is accepted with -save-temps so the preprocessor is doing
the correct thing at least to a point.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27747

[Bug c/27747] [4.2 Regression] ice _Pragma and macros

[janis at gcc dot gnu dot org]

------- Comment #3 from janis at gcc dot gnu dot org  2006-05-24 18:23 -------
A regression hunt on powerpc-linux identified this patch:

    http://gcc.gnu.org/viewcvs?view=rev&rev=109336

    r109336 | rth | 2006-01-04 16:33:38 +0000 (Wed, 04 Jan 2006)


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janis at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |rth at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27747

[Bug c/27747] [4.2 Regression] ice _Pragma and macros

[jakub at gcc dot gnu dot org]

-- 

jakub at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |jakub at gcc dot gnu dot org
                   |dot org                     |
             Status|UNCONFIRMED                 |ASSIGNED
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2006-05-25 14:05:16
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27747

[Bug c/27747] [4.2 Regression] ice _Pragma and macros

[mmitchel at gcc dot gnu dot org]

-- 

mmitchel at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P3                          |P1


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27747

[Bug c/27747] [4.2 Regression] ice _Pragma and macros

[jakub at gcc dot gnu dot org]

------- Comment #4 from jakub at gcc dot gnu dot org  2006-06-09 21:13 -------
Subject: Bug 27747

Author: jakub
Date: Fri Jun  9 21:13:25 2006
New Revision: 114519

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=114519
Log:
        PR preprocessor/27746
        * directives.c (do_pragma): Handle pragma with valid namespace
        and invalid name coming from macro expansion.
        * directives.c (destringize_and_run): Initialize next field in
        context.

        PR c/27747
        PR c++/27748
        * directives.c (destringize_and_run): Set NO_EXPAND on the
        tokens.

        * macro.c (_cpp_backup_tokens): Fix comment typo.
testsuite/
        PR c/27747
        * gcc.dg/cpp/_Pragma6.c: New test.

        PR c++/27748
        * g++.dg/cpp/_Pragma1.C: New test.

        PR preprocessor/27746
        * gcc.dg/gomp/macro-3.c: New test.
        * gcc.dg/gomp/macro-4.c: New test.
        * g++.dg/gomp/macro-3.C: New test.
        * g++.dg/gomp/macro-4.C: New test.

Added:
    trunk/gcc/testsuite/g++.dg/cpp/_Pragma1.C
    trunk/gcc/testsuite/g++.dg/gomp/macro-3.C
    trunk/gcc/testsuite/g++.dg/gomp/macro-4.C
    trunk/gcc/testsuite/gcc.dg/cpp/_Pragma6.c
    trunk/gcc/testsuite/gcc.dg/gomp/macro-3.c
    trunk/gcc/testsuite/gcc.dg/gomp/macro-4.c
Modified:
    trunk/gcc/testsuite/ChangeLog
    trunk/libcpp/ChangeLog
    trunk/libcpp/directives.c
    trunk/libcpp/macro.c


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27747

[Bug c/27747] [4.2 Regression] ice _Pragma and macros

[jakub at gcc dot gnu dot org]

------- Comment #5 from jakub at gcc dot gnu dot org  2006-06-09 21:26 -------
Should be fixed in SVN.


-- 

jakub at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|                            |FIXED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27747

[Bug c/27747] [4.2 Regression] ice _Pragma and macros

[pinskia at gcc dot gnu dot org]

------- Comment #6 from pinskia at gcc dot gnu dot org  2006-06-11 18:32 -------
This test fails on powerpc-darwin and powerpc-aix:
/Users/regress/tbox/svn-gcc/gcc/testsuite/gcc.dg/cpp/_Pragma6.c:8: warning:
#pragma pack(push[, id], <n>) is not supported on this target^M
/Users/regress/tbox/svn-gcc/gcc/testsuite/gcc.dg/cpp/_Pragma6.c:10: warning:
#pragma pack(pop[, id], <n>) is not supported on this target^M
output is:
/Users/regress/tbox/svn-gcc/gcc/testsuite/gcc.dg/cpp/_Pragma6.c:8: warning:
#pragma pack(push[, id], <n>) is not supported on this target^M
/Users/regress/tbox/svn-gcc/gcc/testsuite/gcc.dg/cpp/_Pragma6.c:10: warning:
#pragma pack(pop[, id], <n>) is not supported on this target^M

FAIL: gcc.dg/cpp/_Pragma6.c (test for excess errors)


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27747