gcc-bugzilla-query (Re: Future of gccbug)

[Daniel Berlin]

On Nov 7, 2003, at 4:19 PM, Gabriel Dos Reis wrote:

> Daniel Berlin <dberlin@dberlin.org> writes:
>
> | Um, I *do* track the references, and it outputs a References and
>
> For some reason, it does not appear to work.  at least, you get two
> reports.
>
> [...]
>
> | There is an interface that lets you request bug-reports by email, i
> | just never set it up.
>
> that would be really appreciate if you couold set it.
>

gcc-bugzilla-query@gcc.gnu.org is now set up

Email it "help" to get the help text.

The interesting ones are "index" and "send"

It technically lets you close / modify bugs via email too, but i'm not  
sure i've kept that all synchronized with all of our changes, so if  
that doesn't work (it shouldn't do anything to mess up the bug, it just  
wouldn't do it), so

The format of sent bugs is like so:


+======================================================================= 
=====+
| [tree-ssa] ICE in cprop_into_phis                                      
      |
+----------------------------------------------------------------------- 
-----+
|        Bug #: 12899                       Product: gcc                 
      |
|       Status: ASSIGNED                    Version: tree-ssa            
      |
|   Resolution:                           Component: optimization        
      |
|     Severity: normal                     Priority: P2                  
      |
+----------------------------------------------------------------------- 
-----+
| Host: alphaev68-unknown  Target: alphaev68-unkno   Build:  
alphaev68-unkno  |
+----------------------------------------------------------------------- 
-----+
|  Assigned To: dberlin@gcc.gnu.org                                      
      |
|  Reported By: falk@debian.org                                          
      |
+----------------------------------------------------------------------- 
-----+
|    Milestone: ---                                                      
      |
|          URL:                                                          
      |
+======================================================================= 
=====+
|                              DESCRIPTION                               
      |
This first produced the same ICE as Bug 12870, but now gives a different
message. Does not occur at -O0.

gcc version 3.5-tree-ssa 20031104 (merged 20031026)

falk@juist:/tmp% cat test.c
void
bb_getopt_ulflags (char *s)
{
   for (;;)
     if (s[1])
       do
         s++;
       while (*s);
}

falk@juist:/tmp% gcc -O -c test.c
test.c: In function `bb_getopt_ulflags':

test.c:3: internal compiler error: in cprop_into_phis, at  
tree-ssa-dom.c:1781
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
------- Additional Comments From dberlin at gcc dot gnu dot org   
2003-11-04 19:40 -------
Mine.

This is caused because we miss either an ephi operand in the entry  
block, or adding the entry block
phi arg.

Thus, the cprop_into_phis fails because the phi has two arguments  
(block 3 and block 5) when it
should have three (block -1, block 3, and block 5).

> -- Gaby