[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