[Bug c/14210] New: ICE on -O3

[Bug c/14210] New: ICE on -O3

[namsh at wimo dot co dot kr]

ICE occurs if I do:
    m6811-elf-gcc -O3 -o ./a.o -c a.c

If I added '-mshort', no ICE.
If I changed -O3 to -O2, no ICE.

The error msg is:

a.c: In function `CalcCRC':
a.c:13: error: unrecognizable insn:
(insn:HI 31 30 32 5 (parallel [
            (set (reg:SI 70 [ c ])
                (ashift:SI (reg:SI 66 [ c ])
                    (const_int 8 [0x8])))
            (clobber (scratch:HI))
        ]) -1 (insn_list 30 (nil))
    (expr_list:REG_DEAD (reg:SI 66 [ c ])
        (expr_list:REG_UNUSED (scratch:HI)
            (expr_list:REG_EQUAL (ashift:SI (reg:SI 65 [ c ])
                    (const_int 8 [0x8]))
                (nil)))))
a.c:13: internal compiler error: in extract_insn, at recog.c:2083

-- 
           Summary: ICE on -O3
           Product: gcc
           Version: 3.4.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: namsh at wimo dot co dot kr
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: i686-pc-linux
  GCC host triplet: i686-pc-linux
GCC target triplet: m6811-unknown-none


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14210

[Bug c/14210] ICE on -O3

[namsh at wimo dot co dot kr]

------- Additional Comments From namsh at wimo dot co dot kr  2004-02-19 14:08 -------
Created an attachment (id=5771)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=5771&action=view)
a.i


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14210

[Bug target/14210] ICE on -O3

[pinskia at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|c                           |target


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14210

[Bug target/14210] ICE on -O3

[kazu at cs dot umass dot edu]

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14210

[Bug target/14210] [3.5 Regression] ICE on -O3

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-03-19 06:54 -------
This is the -fweb problem, confirmed.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|                            |1
           Keywords|                            |ice-on-valid-code
   Last reconfirmed|0000-00-00 00:00:00         |2004-03-19 06:54:07
               date|                            |
            Summary|ICE on -O3                  |[3.5 Regression] ICE on -O3
   Target Milestone|---                         |3.5.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14210

[Bug target/14210] [3.5 Regression] ICE on -O3

[ciceron at gcc dot gnu dot org]

------- Additional Comments From ciceron at gcc dot gnu dot org  2004-06-06 17:06 -------
If this is the -fweb, then this should be fixed.  Going to check.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |ciceron at gcc dot gnu dot
                   |dot org                     |org
             Status|NEW                         |ASSIGNED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14210

[Bug target/14210] [3.5 Regression] ICE on -O3

[steven at gcc dot gnu dot org]

------- Additional Comments From steven at gcc dot gnu dot org  2004-06-29 08:02 -------
Stephane, you might want to try this patch: 
http://gcc.gnu.org/ml/gcc-patches/2004-06/msg00251.html 

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14210

[Bug target/14210] [3.5 Regression] ICE on -O3

[ciceron at gcc dot gnu dot org]

------- Additional Comments From ciceron at gcc dot gnu dot org  2004-08-31 20:07 -------
Problem similar to target/15334 which is fixed by:

http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.5171&r2=2.5172
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/config/m68hc11/m68hc11.c.diff?cvsroot=gcc&r1=1.106&r2=1.107





*** This bug has been marked as a duplicate of 15334 ***

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14210