[Bug c/29714] New: internal compiler error: in extract_insn, at recog.c:2084

[Bug c/29714] New: internal compiler error: in extract_insn, at recog.c:2084

[gcc-bugzilla at gcc dot gnu dot org]

../hercules/general2.c: In function 'z900_test_and_set':
../hercules/general2.c:1415: error: unrecognizable insn:
(insn 130 128 131 17 (set (reg:QI 102)
        (const_int 255 [0xff])) -1 (nil)
            (nil))
            ../hercules/general2.c:1415: internal compiler error: in
extract_insn, at recog.c:2084

Environment:
System: Linux herc-host 2.6.15-27-amd64-server #1 SMP Sat Sep 16 02:04:37 UTC
2006 x86_64 GNU/Linux
Architecture: x86_64


host: x86_64-pc-linux-gnu
build: x86_64-pc-linux-gnu
target: x86_64-pc-linux-gnu
configured with: ../src/configure -v
--enable-languages=c,c++,fortran,objc,obj-c++,treelang --prefix=/usr
--enable-shared --with-system-zlib --libexecdir=/usr/lib
--without-included-gettext --enable-threads=posix --enable-nls
--program-suffix=-4.1 --enable-__cxa_atexit --enable-clocale=gnu
--enable-libstdcxx-debug --enable-mpfr --enable-checking=release
x86_64-linux-gnu

How-To-Repeat:
        can I attach the preprocessor output using this script?


------- Comment #1 from phil dot sidler at attachmate dot com  2006-11-04 19:02 -------
Fix:
        unknown>


-- 
           Summary: internal compiler error: in extract_insn, at
                    recog.c:2084
           Product: gcc
           Version: 4.1.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: phil dot sidler at attachmate dot com
 GCC build triplet: x86_64-pc-linux-gnu
  GCC host triplet: x86_64-pc-linux-gnu
GCC target triplet: x86_64-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29714

[Bug target/29714] internal compiler error: in extract_insn, at recog.c:2084

[phil dot sidler at attachmate dot com]

------- Comment #2 from phil dot sidler at attachmate dot com  2006-11-04 19:07 -------
Created an attachment (id=12548)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=12548&action=view)
preprocessed source gzipped


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29714

[Bug target/29714] internal compiler error: in extract_insn, at recog.c:2084

[rguenth at gcc dot gnu dot org]

------- Comment #3 from rguenth at gcc dot gnu dot org  2006-11-04 20:33 -------
how did you compile the testcase?


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |rguenth at gcc dot gnu dot
                   |                            |org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29714

[Bug target/29714] internal compiler error: in extract_insn, at recog.c:2084

[phil dot sidler at attachmate dot com]

------- Comment #4 from phil dot sidler at attachmate dot com  2006-11-04 23:24 -------

gcc  -W -Wall -O3 -march=k8 -fomit-frame-pointer  


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29714

[Bug target/29714] internal compiler error: in extract_insn, at recog.c:2084

[phil dot sidler at attachmate dot com]

------- Comment #5 from phil dot sidler at attachmate dot com  2006-11-06 20:18 -------
Recreated with the following

#include <stdint.h>

main()
{
        uint8_t area  = 1;
        uint8_t oldval;
        uint8_t res;

        oldval = area;
        res = __sync_val_compare_and_swap(&area, oldval, 128);
}

Note that constant values less that 128 in the 3rd parameter work OK.
Casting the 3rd parameter to be unsigned does not work.
Using a temporary variable instead of a constant does work, but only with
optimization turned off.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29714

[Bug target/29714] internal compiler error: in extract_insn, at recog.c:2084

[pinskia at gcc dot gnu dot org]

------- Comment #6 from pinskia at gcc dot gnu dot org  2006-11-06 20:20 -------
I think this has been fixed already, see PR 28924.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29714

[Bug target/29714] internal compiler error: in extract_insn, at recog.c:2084

[pinskia at gcc dot gnu dot org]

------- Comment #7 from pinskia at gcc dot gnu dot org  2006-11-06 20:26 -------
(In reply to comment #5)
> Recreated with the following

What exact version of 4.1.2 are you using?


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29714

[Bug target/29714] internal compiler error: in extract_insn, at recog.c:2084

[phil dot sidler at attachmate dot com]

------- Comment #8 from phil dot sidler at attachmate dot com  2006-11-06 20:29 -------
I see you're right, this is probably fixed now.
This was on 
cc (GCC) 4.1.2 20060928 (prerelease) (Ubuntu 4.1.1-13ubuntu5)

thanks.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29714

[Bug target/29714] internal compiler error: in extract_insn, at recog.c:2084

[pinskia at gcc dot gnu dot org]

------- Comment #9 from pinskia at gcc dot gnu dot org  2006-11-06 20:31 -------
This is a dup of bug 28924 after all and has been fixed already.

*** This bug has been marked as a duplicate of 28924 ***


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |DUPLICATE


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29714

[Bug target/29714] internal compiler error: in extract_insn, at recog.c:2084

[phil dot sidler at attachmate dot com]

------- Comment #10 from phil dot sidler at attachmate dot com  2006-11-06 21:58 -------
fyi, does work OK at
gcc (GCC) 4.1.2 20061028 (prerelease) (Debian 4.1.1-19)
cheers


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29714