[Bug middle-end/7776] const char* p = "foo"; if (p == "foo") ... is compiled without warning!

[pluto at agmk dot net]

------- Additional Comments From pluto at agmk dot net  2005-06-24 13:50 -------
(In reply to comment #10) 
> (In reply to comment #9)   
> > A revised patch, allowing equality and inequality comparisons against 
NULL,   
> yet   
> > retaining warnings for things like 'if ("foo" > 0)' and 'if ("foo" ==   
> "bar")'   
> > was posted here:  http://gcc.gnu.org/ml/gcc-patches/2005-06/msg01177.html   
> >    
>    
> with this patch I get an ice at amd64:   
>    
> (..)   
> -c ../../gcc/unwind-dw2.c -o libgcc/./unwind-dw2.o   
>    
> In file included from ../../gcc/unwind-dw2.c:256:   
> ../../gcc/config/i386/linux-unwind.h:   
> In function 'x86_64_fallback_frame_state':  
> ../../gcc/config/i386/linux-unwind.h:55: warning: dereferencing type-punned  
>                                    pointer will break strict-aliasing rules   
> ../../gcc/unwind.inc: In function '_Unwind_ForcedUnwind':  
> ../../gcc/unwind.inc:215: internal compiler error: in create_pre_exit,  
>                                                    at mode-switching.c:350   
>   
 
oops, sorry. i've posted above in wrong PR. 

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=7776