[Bug preprocessor/35061] New: #pragma pop_macro causes ICE if no macro value on stack

[Bug preprocessor/35061] New: #pragma pop_macro causes ICE if no macro value on stack

[dannysmith at users dot sourceforge dot net]

A "#pragma pop_macro" without a preceding "#pragma push_macro"  triggers an ICE
on  mingw32

// pop_macro.c 
#define X  1
int main()
{
// # pragma push_macro("X")
# undef X
# define X 2
# pragma pop_macro("X")
return 0;
}

gcc pop_macro.c
pop_macro.c: In function 'main':
pop_macro.c:9: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.


-- 
           Summary: #pragma pop_macro causes ICE if no  macro value on stack
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: preprocessor
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: dannysmith at users dot sourceforge dot net
GCC target triplet: i686-pc-mingw32


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35061

[Bug preprocessor/35061] #pragma pop_macro causes ICE if no macro value on stack

[fxcoudert at gcc dot gnu dot org]

-- 

fxcoudert at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2008-02-06 10:56:34
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35061

[Bug preprocessor/35061] #pragma pop_macro causes ICE if no macro value on stack

[dannysmith at users dot sourceforge dot net]

------- Comment #1 from dannysmith at users dot sourceforge dot net  2008-02-06 17:29 -------
Patch at:
http://gcc.gnu.org/ml/gcc-patches/2008-02/msg00120.html


-- 

dannysmith at users dot sourceforge dot net changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |dannysmith at users dot
                   |dot org                     |sourceforge dot net
             Status|NEW                         |ASSIGNED
   Last reconfirmed|2008-02-06 10:56:34         |2008-02-06 17:29:23
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35061

[Bug preprocessor/35061] #pragma pop_macro causes ICE if no macro value on stack

[dannysmith at gcc dot gnu dot org]

------- Comment #2 from dannysmith at gcc dot gnu dot org  2008-02-14 21:42 -------
Subject: Bug 35061

Author: dannysmith
Date: Thu Feb 14 21:41:40 2008
New Revision: 132322

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=132322
Log:
        PR preprocessor/35061
gcc
        * c-pragma.c (handle_pragma_pop_macro): Check that
        pushed_macro_table has been allocated.
testsuite
        * gcc.dg/cpp/pragma_pop_macro-1.c:  New file




Added:
    trunk/gcc/testsuite/gcc.dg/cpp/pragma-pop_macro-1.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/c-pragma.c
    trunk/gcc/testsuite/ChangeLog


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35061

[Bug preprocessor/35061] #pragma pop_macro causes ICE if no macro value on stack

[dannysmith at users dot sourceforge dot net]

------- Comment #3 from dannysmith at users dot sourceforge dot net  2008-02-14 21:44 -------
Fixed


-- 

dannysmith at users dot sourceforge dot net changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |4.3.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35061

[Bug preprocessor/35061] #pragma pop_macro causes ICE if no macro value on stack

[ubizjak at gmail dot com]

------- Comment #4 from ubizjak at gmail dot com  2008-02-14 22:17 -------
Fixed for real.


-- 

ubizjak at gmail dot com changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35061

[Bug preprocessor/35061] #pragma pop_macro causes ICE if no macro value on stack

[ubizjak at gmail dot com]

------- Comment #5 from ubizjak at gmail dot com  2008-02-15 14:18 -------
(In reply to comment #4)
> Fixed for real.

Wrong dg-do directive in the testcase was fixed by:

Author: uros
Date: Fri Feb 15 14:17:41 2008
New Revision: 132343

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=132343
Log:
        * gcc.dg/cpp/pragma-pop_macro-1.c: Fix dg-do directive.


Modified:
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gcc.dg/cpp/pragma-pop_macro-1.c


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35061