[Bug c/32455] New: internal compiler error: in convert_move, at expr.c:362

[Bug c/32455] New: internal compiler error: in convert_move, at expr.c:362

[frederic dot schuh at neuf dot fr]

HARDWARE:
---------
System: HP-UX B.11.00
Machine: 9000/785

COMPILATION:
------------
/usr/local/bin/gcc -v -save-temps -c TP.c -o TP_c.o
Using built-in specs.
Target: hppa2.0w-hp-hpux11.11
Configured with: ../gcc/configure 
Thread model: posix
gcc version 4.1.2
 /usr/local/libexec/gcc/hppa2.0w-hp-hpux11.11/4.1.2/cc1 -E -quiet -v TP.c
-fpch-preprocess -o TP.i
ignoring nonexistent directory "NONE/include"
ignoring nonexistent directory "/usr/local/hppa2.0w-hp-hpux11.11/include"
#include "..." search starts here:
#include <...> search starts here:
 /usr/local/include
 /usr/local/lib/gcc/hppa2.0w-hp-hpux11.11/4.1.2/include
 /usr/include
End of search list.
 /usr/local/libexec/gcc/hppa2.0w-hp-hpux11.11/4.1.2/cc1 -fpreprocessed TP.i
-quiet -dumpbase TP.c -auxbase-strip TP_c.o -version -o TP.s
GNU C version 4.1.2 (hppa2.0w-hp-hpux11.11)
        compiled by GNU C version 4.1.2.
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
Compiler executable checksum: 74aa6c12f75acdb1c74c59fde58fd82f
In file included from TP.c:130:
atu.inc: In function 'CONCAT_STR_C':
atu.inc:264: warning: second parameter of 'va_start' not last named argument
atu.inc:264: internal compiler error: in convert_move, at expr.c:362

I try to compil a source code comes from a library target chpgnu of
TestRealTime


-- 
           Summary: internal compiler error: in convert_move, at expr.c:362
           Product: gcc
           Version: 4.1.2
            Status: UNCONFIRMED
          Severity: blocker
          Priority: P3
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: frederic dot schuh at neuf dot fr


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32455

[Bug target/32455] internal compiler error: in convert_move, at expr.c:362

[pinskia at gcc dot gnu dot org]

-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|blocker                     |normal
          Component|c                           |target
 GCC target triplet|                            |hppa2.0w-hp-hpux11.11


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32455

[Bug target/32455] internal compiler error: in convert_move, at expr.c:362

[frederic dot schuh at neuf dot fr]

------- Comment #1 from frederic dot schuh at neuf dot fr  2007-06-21 14:49 -------
Created an attachment (id=13757)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=13757&action=view)
preprocessed file in attachment


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32455

[Bug middle-end/32455] [4.1/4.2/4.3 regression] ICE with modified va_list

[reichelt at gcc dot gnu dot org]

------- Comment #2 from reichelt at gcc dot gnu dot org  2007-12-27 20:38 -------
Confirmed. Here's a reduced testcase that crashes when compiled under
i686-pc-linux-gnu:

=========================================
typedef double* va_list;

void __builtin_va_start(va_list, ...);

void foo(const char* s, ...)
{
  va_list v;
  __builtin_va_start(v, s);
}
=========================================

bug.c: In function 'foo':
bug.c:8: internal compiler error: in convert_move, at expr.c:371
Please submit a full bug report, [etc.]

I don't know whether messing around with va_list and __builtin_va_start
is allowed or not. Btw, with
  typedef void* va_list;
instead of
  typedef double* va_list;
I get a different ICE:

bug.c: In function 'foo':
bug.c:8: internal compiler error: in simplify_subreg, at simplify-rtx.c:4918
Please submit a full bug report, [etc.]

Btw, the ICE appeared in GCC 4.0.0 (GCC 3.3.x crashed, too).


-- 

reichelt at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |reichelt at gcc dot gnu dot
                   |                            |org
             Status|UNCONFIRMED                 |NEW
          Component|target                      |middle-end
     Ever Confirmed|0                           |1
 GCC target triplet|hppa2.0w-hp-hpux11.11       |
           Keywords|                            |ice-on-valid-code, monitored
   Last reconfirmed|0000-00-00 00:00:00         |2007-12-27 20:38:18
               date|                            |
            Summary|internal compiler error: in |[4.1/4.2/4.3 regression] ICE
                   |convert_move, at expr.c:362 |with modified va_list
   Target Milestone|---                         |4.1.3


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32455

[Bug middle-end/32455] [4.1/4.2/4.3 regression] ICE with modified va_list

[mmitchel at gcc dot gnu dot org]

------- Comment #3 from mmitchel at gcc dot gnu dot org  2008-01-02 23:20 -------
This code isn't valid.  We probably shouldn't allow declarations of
__builtin_va_start, and we certainly shouldn't allow declarations that don't
match the internal definition -- and I don't think that declaration does.  (I'm
not sure we should allow definitions of any __builtin functions; after all
they're built-in!)


-- 

mmitchel at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|ice-on-valid-code           |ice-on-invalid-code
           Priority|P3                          |P2


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32455

[Bug c/32455] [4.1/4.2/4.3 regression] ICE with modified va_list, allows declaration of __builtin_*

[rguenth at gcc dot gnu dot org]

------- Comment #4 from rguenth at gcc dot gnu dot org  2008-01-15 15:01 -------
I think the frontend should reject identifiers in declarations that touch
the __builtin_ namespace.

The regression status is dubious (it probably 'regressed' at the point
the builtin was introduced).


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|middle-end                  |c
      Known to fail|                            |3.3.6
      Known to work|                            |2.95.4
            Summary|[4.1/4.2/4.3 regression] ICE|[4.1/4.2/4.3 regression] ICE
                   |with modified va_list       |with modified va_list,
                   |                            |allows declaration of
                   |                            |__builtin_*


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32455

[Bug c/32455] [4.1/4.2/4.3 regression] ICE with modified va_list, allows declaration of __builtin_*

[rth at gcc dot gnu dot org]

-- 

rth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |rth at gcc dot gnu dot org
                   |dot org                     |
             Status|NEW                         |ASSIGNED
   Last reconfirmed|2007-12-27 20:38:18         |2008-01-31 18:52:39
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32455

[Bug c/32455] [4.2/4.3/4.4 regression] ICE with modified va_list, allows declaration of __builtin_*

[jsm28 at gcc dot gnu dot org]

------- Comment #5 from jsm28 at gcc dot gnu dot org  2008-07-04 22:15 -------
Closing 4.1 branch.


-- 

jsm28 at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[4.1/4.2/4.3/4.4 regression]|[4.2/4.3/4.4 regression] ICE
                   |ICE with modified va_list,  |with modified va_list,
                   |allows declaration of       |allows declaration of
                   |__builtin_*                 |__builtin_*
   Target Milestone|4.1.3                       |4.2.5


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32455

[Bug c/32455] [4.2/4.3/4.4 regression] ICE with modified va_list, allows declaration of __builtin_*

[jakub at gcc dot gnu dot org]

------- Comment #6 from jakub at gcc dot gnu dot org  2008-11-07 17:12 -------
Apparently glibc used it only for 2 builtins in include/stdio.h and it seemed
to be probably a workaround from back in 2003,  I've verified it is unnecessary
with gcc 4.1/4.3/4.4 and removed it.  Current glibc trunk compiles with rth's
patch just fine.  Therefore I'm removing my objection.  Can we proceed with
this for 4.4 then?


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32455

[Bug c/32455] [4.2/4.3/4.4 regression] ICE with modified va_list, allows declaration of __builtin_*

[jakub at gcc dot gnu dot org]

------- Comment #7 from jakub at gcc dot gnu dot org  2008-11-07 17:24 -------
The patch as is already rejects typedef double *__builtin_va_list;, so it is
just
{struct,union,enum} __builtin_foo that isn't rejected on the C side, which we
could reject (disallow that in pushtag?), but isn't fatal, given that GCC
internally never uses struct __builtin_*, always just uses __builtin_*
typedefs.
On the C++ side, it is more work probably.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32455

[Bug c/32455] [4.2/4.3/4.4 regression] ICE with modified va_list, allows declaration of __builtin_*

[jakub at gcc dot gnu dot org]

------- Comment #8 from jakub at gcc dot gnu dot org  2009-01-10 09:04 -------
Patch at:
http://gcc.gnu.org/ml/gcc-patches/2008-11/msg00644.html

Ian Taylor's review:
I'm not really comfortable with breaking the building of old version
of glibc just to fix an ice-on-invalid.  I'll approve this for gcc
4.5, to give people more time to update their glibc.

So, moving to 4.5.0 target.


-- 

jakub at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|rth at gcc dot gnu dot org  |jakub at gcc dot gnu dot org
   Target Milestone|4.2.5                       |4.5.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32455

[Bug c/32455] [4.2/4.3/4.4/4.5 regression] ICE with modified va_list, allows declaration of __builtin_*

[rguenth at gcc dot gnu dot org]

------- Comment #9 from rguenth at gcc dot gnu dot org  2009-06-19 11:47 -------
Jakub, ping?  Given that we now have PR40485?


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32455

[Bug c/32455] [4.2/4.3/4.4/4.5 regression] ICE with modified va_list, allows declaration of __builtin_*

[pinskia at gcc dot gnu dot org]

------- Comment #10 from pinskia at gcc dot gnu dot org  2009-06-21 22:45 -------
*** Bug 40485 has been marked as a duplicate of this bug. ***


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |ivan dot glushkov at gmail
                   |                            |dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32455

[Bug c/32455] [4.3/4.4/4.5 regression] ICE with modified va_list, allows declaration of __builtin_*

[rguenth at gcc dot gnu dot org]

------- Comment #11 from rguenth at gcc dot gnu dot org  2010-04-06 11:19 -------
GCC 4.5.0 is being released.  Deferring to 4.5.1.


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|4.5.0                       |4.5.1


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32455

[Bug c/32455] [4.3/4.4/4.5/4.6 regression] ICE with modified va_list, allows declaration of __builtin_*

[rguenth at gcc dot gnu dot org]

------- Comment #12 from rguenth at gcc dot gnu dot org  2010-07-31 09:29 -------
GCC 4.5.1 is being released, adjusting target milestone.


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|4.5.1                       |4.5.2


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32455