[Bug target/23435] New: Unrecognizable insn (in extract_insn, at recog.c)

[Bug target/23435] New: Unrecognizable insn (in extract_insn, at recog.c)

[loki at gcc dot gnu dot org]

I have the following error when compiling a file from linux kernel (attached).

Command line:
m68k-elf-gcc -w -O1 -c pr.c

Output:
pr.c: In function 'nfs_statfs':
pr.c:8757: error: unrecognizable insn:
(insn 42 40 43 3 (set (mem/s/j:DI (plus:SI (reg/f:SI 26 virtual-stack-vars)
                (const_int -64 [0xffffffc0])) [0 res.bsize+0 S8 A16])
        (zero_extend:DI (mem/s/j:SI (plus:SI (reg/v/f:SI 45 [ sb ])
                    (const_int 10 [0xa])) [0 <variable>.s_blocksize+0 S4 A16])))
-1 (nil)
    (nil))
pr.c:8757: internal compiler error: in extract_insn, at recog.c:2084


Last working version:
"2005-07-29 12:00:00 UTC"

-- 
           Summary: Unrecognizable insn (in extract_insn, at recog.c)
           Product: gcc
           Version: 4.1.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: target
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: loki at gcc dot gnu dot org
                CC: gcc-bugs at gcc dot gnu dot org
GCC target triplet: m68k-elf


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23435

[Bug target/23435] Unrecognizable insn (in extract_insn, at recog.c)

[loki at gcc dot gnu dot org]

------- Additional Comments From loki at gcc dot gnu dot org  2005-08-17 08:12 -------
Created an attachment (id=9512)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=9512&action=view)
Test case


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23435

[Bug target/23435] [4.1 Regression] Unrecognizable insn (in extract_insn, at recog.c)

[pinskia at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |ice-on-valid-code
            Summary|Unrecognizable insn (in     |[4.1 Regression]
                   |extract_insn, at recog.c)   |Unrecognizable insn (in
                   |                            |extract_insn, at recog.c)
   Target Milestone|---                         |4.1.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23435

[Bug target/23435] [4.1 Regression] Unrecognizable insn (in extract_insn, at recog.c)

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2005-08-19 04:21 -------
Reducing.

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23435

[Bug target/23435] [4.1 Regression] Unrecognizable insn (in extract_insn, at recog.c)

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2005-08-19 05:11 -------
Confirmed, reduced testcase:
struct statfs {
  int f_bsize;
};
struct super_block {
  unsigned long s_blocksize;
};
struct nfs_fsinfo {
  unsigned long long bsize;
};
int statfs (struct nfs_fsinfo *);
int nfs_statfs(struct super_block *sb, struct statfs *buf)
{
  unsigned char blockbits;
  struct nfs_fsinfo res;
  statfs(&res);
  if (res.bsize == 0)
    res.bsize = sb->s_blocksize;
  buf->f_bsize = nfs_block_bits(res.bsize);
}


-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|                            |1
 GCC target triplet|m68k-elf                    |m68k-*
   Last reconfirmed|0000-00-00 00:00:00         |2005-08-19 05:11:08
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23435

[Bug target/23435] [4.1 Regression] Unrecognizable insn (in extract_insn, at recog.c)

[mmitchel at gcc dot gnu dot org]

------- Additional Comments From mmitchel at gcc dot gnu dot org  2005-08-22 05:03 -------
m68k is not a primary or secondary platform; removing target milestone.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|4.1.0                       |---


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23435

[Bug target/23435] [4.1 Regression] Unrecognizable insn (in extract_insn, at recog.c)

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2005-08-22 23:40 -------
*** Bug 23521 has been marked as a duplicate of this bug. ***

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |debian-gcc at lists dot
                   |                            |debian dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23435