[Bug optimization/11379] New: ICE with optimization option -fnew-ra

[Bug optimization/11379] New: ICE with optimization option -fnew-ra

[spigel at olvs dot miee dot ru]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11379

           Summary: ICE with optimization option -fnew-ra
           Product: gcc
           Version: 3.3.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: spigel at olvs dot miee dot ru
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: i686-linux-gnu
  GCC host triplet: i686-gnu-linux
GCC target triplet: i686-gnu-linux

ICE in reloads_to_loads, at ra-rewrite.c:1068
gcc 3.3.1 2003-06-30

If I compile today gcc version my code with optimization options "-O3
-march=athlon-xp" -fnew-ra" then compiler report the ICE in re-rewrite.c:1068

[Bug optimization/11379] ICE with optimization option -fnew-ra

[spigel at olvs dot miee dot ru]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11379



------- Additional Comments From spigel at olvs dot miee dot ru  2003-06-30 12:25 -------
Created an attachment (id=4309)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=4309&action=view)
C code showing the ICE compressed with bzip2(1.0.2)

Can you compile this code with compiler gcc 3.3.1 (2003-06-30) with follow
command line: 'gcc -c -O3 -march=athlon-xp -fnew-ra newra.c' ?

[Bug optimization/11379] ICE with optimization option -fnew-ra

[pinskia at physics dot uc dot edu]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11379



------- Additional Comments From pinskia at physics dot uc dot edu  2003-06-30 13:03 -------
It also happens on the mainline (20030630), and with -march=pentium4 and with -O1. I will be 
reducing this one soon.

[Bug optimization/11379] ICE with optimization option -fnew-ra

[pinskia at physics dot uc dot edu]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11379


pinskia at physics dot uc dot edu changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
Attachment #4309 is|0                           |1
           obsolete|                            |


------- Additional Comments From pinskia at physics dot uc dot edu  2003-06-30 13:37 -------
Created an attachment (id=4310)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=4310&action=view)
reduced to 66 lines (still ICE with -fnew-ra -O1 -march=pentium4)

[Bug optimization/11379] ICE with optimization option -fnew-ra

[pinskia at physics dot uc dot edu]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11379


pinskia at physics dot uc dot edu changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|                            |1
   Last reconfirmed|0000-00-00 00:00:00         |2003-06-30 13:39:09
               date|                            |


------- Additional Comments From pinskia at physics dot uc dot edu  2003-06-30 13:39 -------
I can confirm this on 3.3.1 (20030616) and the mainline (20030629).

[Bug optimization/11379] ICE with optimization option -fnew-ra

[pinskia at physics dot uc dot edu]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11379


pinskia at physics dot uc dot edu changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|2003-06-30 13:39:09         |2003-07-15 14:42:15
               date|                            |


------- Additional Comments From pinskia at physics dot uc dot edu  2003-07-15 14:42 -------
Here is a reduce test case (down to 36 lines):
typedef unsigned char Byte;
typedef unsigned int uInt;
typedef uInt uIntf;
typedef struct inflate_huft_s inflate_huft;
struct inflate_huft_s
{
  Byte Exop;
  Byte Bits;
  uInt base;
};
int huft_build (uInt n, uInt s, const uIntf * d,
            const uIntf * e)
{

  uInt a = n;
  uInt c[15 + 1];
  uInt i = n;
  uInt j = n;
  uInt k = n;
  register uIntf *p;
  inflate_huft *q = 0;
  struct inflate_huft_s r;
  p = c;
  for (; k <= n; k++)
    { 
      while (a--)
        { 
          r.Exop = (Byte) (e[*p - s] + 16 + 64);
          r.base = d[*p++ - s];
          for (j = i >> n; j < n; j += 1 << (k - n))
            q[j] = r;
        }
    }
  return 0;
}

[Bug optimization/11379] ICE with optimization option -fnew-ra

[spigel at olvs dot miee dot ru]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11379



------- Additional Comments From spigel at olvs dot miee dot ru  2003-07-18 13:02 -------
Subject: Re:  ICE with optimization option -fnew-ra

I can confirm this on 3.3.1 (20030715) with "-O1 -march=athlon-xp -fnew-ra".
It can be the good code for testing new compiler versions.

pinskia at physics dot uc dot edu wrote:

>------- Additional Comments From pinskia at physics dot uc dot edu  2003-07-15 14:42 -------
>Here is a reduce test case (down to 36 lines):
>typedef unsigned char Byte;
>typedef unsigned int uInt;
>typedef uInt uIntf;
>typedef struct inflate_huft_s inflate_huft;
>struct inflate_huft_s
>{
>  Byte Exop;
>  Byte Bits;
>  uInt base;
>};
>int huft_build (uInt n, uInt s, const uIntf * d,
>            const uIntf * e)
>{
>
>  uInt a = n;
>  uInt c[15 + 1];
>  uInt i = n;
>  uInt j = n;
>  uInt k = n;
>  register uIntf *p;
>  inflate_huft *q = 0;
>  struct inflate_huft_s r;
>  p = c;
>  for (; k <= n; k++)
>    { 
>      while (a--)
>        { 
>          r.Exop = (Byte) (e[*p - s] + 16 + 64);
>          r.base = d[*p++ - s];
>          for (j = i >> n; j < n; j += 1 << (k - n))
>            q[j] = r;
>        }
>    }
>  return 0;
>}
>

[Bug optimization/11379] ICE with optimization option -fnew-ra

[pinskia at physics dot uc dot edu]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11379


pinskia at physics dot uc dot edu changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|2003-07-15 14:42:15         |2003-07-18 13:11:44
               date|                            |


------- Additional Comments From pinskia at physics dot uc dot edu  2003-07-18 13:11 -------
I can confirm this on the mainline (20030718) with both "-O1 -fnew-ra -march=pentium4" 
and "-O1 -fnew-ra -march=athlon-xp"

[Bug optimization/11379] ICE with optimization and -fnew-ra

[pinskia at gcc dot gnu dot org]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11379


pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|3.4                         |---

[Bug optimization/11379] ICE with optimization and -fnew-ra

[pinskia at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |matz at suse dot de
                   |dot org                     |
             Status|NEW                         |ASSIGNED
   Target Milestone|---                         |3.5


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11379

[Bug optimization/11379] [new-ra] ICE with optimization and -fnew-ra

[1319 at bot dot ru]

------- Additional Comments From 1319 at bot dot ru  2004-03-24 06:47 -------
Current new RA cannot compile neither Andrew's nor spigel's testcase with
same error:

/usr/local/gcc-RA/bin/gcc -fnew-ra -O1 -S 11379-2.c
11379-2.c: In function `huft_build':

11379-2.c:37: error: Unable to generate reloads for:
(insn 48 47 54 3 (set (strict_low_part (subreg:QI (reg/v:DI 69 [ r ]) 0))
        (reg:QI 73)) 50 {*movstrictqi_1} (insn_list 47 (nil))
    (expr_list:REG_DEAD (reg:QI 73)
        (nil)))
11379-2.c:37: internal compiler error: in collect_insn_info, at pre-reload.c:3229
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.

Compilation exited abnormally with code 1 at Wed Mar 24 09:41:58

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11379

[Bug optimization/11379] [new-ra] ICE with optimization and -fnew-ra

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-03-24 06:50 -------
so confirmed on the new-ra branch, thanks for testing Serge Belyshev.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|SUSPENDED                   |NEW
   Last reconfirmed|2003-07-18 13:11:44         |2004-03-24 06:50:28
               date|                            |
            Version|3.3.1                       |new-ra


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11379

[Bug optimization/11379] [new-ra] ICE with optimization and -fnew-ra

[spigel at olvs dot miee dot ru]

------- Additional Comments From spigel at olvs dot miee dot ru  2004-03-31 08:23 -------
Current version gcc (3.3.4 20040331) can not compile pr11379.c with
"-march=athlon" or "-march=pentium4" but can compile with "-march=i686"
"-march=pentium3". 

$ gcc -O1 -fnew-ra -march=pentium4 -c pr11379.c
pr11379.c: In function `huft_build':
pr11379.c:66: internal compiler error: in reloads_to_loads, at ra-rewrite.c:1068

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11379

[Bug optimization/11379] [new-ra] ICE with optimization and -fnew-ra

[1319 at bot dot ru]

------- Additional Comments From 1319 at bot dot ru  2004-04-08 21:02 -------
Fixed on today's new-regalloc-branch:

$ /usr/local/gcc-RA/bin/gcc -fnew-ra -O1 -S 11379-2.c
$

(Good. Now gzip and zlib can be compiled by new-ra, but... see PR 11082)

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11379

[Bug optimization/11379] [new-ra] ICE with optimization and -fnew-ra

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-04-08 21:17 -------
Changing this one to suspended as it is fixed on the new-ra brnach, thanks Serge Belyshev for testing.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |SUSPENDED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11379

[Bug rtl-optimization/11379] [new-ra] ICE with optimization and -fnew-ra

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2005-01-17 15:19 -------
Closing as wiill not fix as new-ra was removed from the mainline.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|SUSPENDED                   |RESOLVED
         Resolution|                            |WONTFIX
   Target Milestone|---                         |4.0.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11379

[Bug rtl-optimization/11379] [new-ra] ICE with optimization and -fnew-ra

[spigel at olvs dot miee dot ru]

------- Additional Comments From spigel at olvs dot miee dot ru  2005-01-17 16:12 -------
Subject: Re:  [new-ra] ICE with optimization and
 -fnew-ra

OK, may be remove -fnew-ra option from compiler options list?

pinskia at gcc dot gnu dot org wrote:

>------- Additional Comments From pinskia at gcc dot gnu dot org  2005-01-17 15:19 -------
>Closing as wiill not fix as new-ra was removed from the mainline.
>
>  
>


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11379

[Bug rtl-optimization/11379] [new-ra] ICE with optimization and -fnew-ra

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2005-01-17 16:15 -------
(In reply to comment #15)
> Subject: Re:  [new-ra] ICE with optimization and
>  -fnew-ra
> 
> OK, may be remove -fnew-ra option from compiler options list?

It is removed in gcc 4.0.0 which is why this was closed.

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11379