[Bug c/13749] New: Internal compiler error when cross-compiling C code for IP2K processor

[Bug c/13749] New: Internal compiler error when cross-compiling C code for IP2K processor

[ryan at radialink dot net]

I'm getting the following error when trying to cross compile some code for the
IP2K processor.  I'm currently using ip2k-elf-gcc version 3.3.3 20040105, but
the problem also occurred for 3.3.2.  I'm running Mandrake Linux 9.2 Download
Edition, but I don't have the latest Mandrake updates.  GCC was configured with
the following options:
--prefix=/radialink1/ip2ktools --host=i686-pc-linux-gnu --target=ip2k-elf 

I'm compiling this file using these options:
-Wall -g -I. -I../apps/httpd -I../apps/resolv -I../apps/webclient -I../apps/smtp
 -I../apps/telnet -I /radialink1/ip2ktools/lib/gcc-lib/ip2k-elf/3.3.3/include -I
/radialink1/ip2ktools/lib/gcc-lib/ip2k-elf/3.3.3/src -fpack-struct -nodefaultlibs

This is the error message in its entirety(line 1496 in uip.c corresponds with
line 1304 of the preprocessed source):
uip.c:1496: error: insn does not satisfy its constraints:
(insn 14 2435 15 0x40204790 (set (cc0)
        (compare (mem/f:QI (plus:HI (reg:HI 4 iph)
                    (const_int 4 [0x4])) [0 flag+0 S1 A8])
            (const_int 2 [0x2]))) 135 {cmpqi} (nil)
    (nil))
uip.c:1496: internal compiler error: in final_scan_insn, at final.c:2722

I did manage to find that changing the machine description file(ip2k.md)
slightly would eliminate this error.  However, I have no idea if this change
will cause the compiler to produce valid code.  I should have a board to test on
by this week, so I'll post a follow up once I've determined if this change fixes
anything:
ip2k.md line 4690: (compare (match_operand:QI 0 "nonimmediate_operand" "roR, rS")
change to: (compare (match_operand:QI 0 "nonimmediate_operand" "rmR,  rS")

I also got a similar bug in a different source file that I ended up not needing.
 That error came in insn tstqi(this bug is in cmpqi).  The problems may be
related, but currently they don't effect me and I can't produce a source file
that will compile(this source file depended on Linux-specific libraries that are
not present when compiling for the IP2K.

Here's the preprocessed source of uip.c(uuencoded and compressed with bzip2)
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-&4?^+N2*<*$APN*.T@``
`
end

-- 
           Summary: Internal compiler error when cross-compiling C code for
                    IP2K processor
           Product: gcc
           Version: 3.3.3
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: ryan at radialink dot net
                CC: gcc-bugs at gcc dot gnu dot org
  GCC host triplet: Mandrake Linux 9.2
GCC target triplet: Ubicom IP2K processor


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13749

[Bug target/13749] Internal compiler error when cross-compiling C code for IP2K processor

[pinskia at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|c                           |target
           Keywords|                            |ice-on-valid-code


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13749

[Bug target/13749] Internal compiler error when cross-compiling C code for IP2K processor

[dhazeghi at yahoo dot com]

------- Additional Comments From dhazeghi at yahoo dot com  2004-01-20 00:25 -------
Created an attachment (id=5528)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=5528&action=view)
testcase


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13749

[Bug target/13749] Internal compiler error when cross-compiling C code for IP2K processor

[dhazeghi at yahoo dot com]

------- Additional Comments From dhazeghi at yahoo dot com  2004-01-20 00:27 -------
Confirmed with current (3.3,3.4) branch and mainline.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|                            |1
   Last reconfirmed|0000-00-00 00:00:00         |2004-01-20 00:27:34
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13749

[Bug target/13749] Internal compiler error when cross-compiling C code for IP2K processor

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2005-07-20 06:44 -------
Closing as will not fix as this target has been removed from the mainline for 4.1.0.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |WONTFIX
   Target Milestone|---                         |4.1.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13749