[Bug c/16480] New: using -msdata causes internal compiler error

[Bug c/16480] New: using -msdata causes internal compiler error

[kurt at symbolicsound dot com]

Code compiles fine without -msdata tag, gives an internal compiler error when
tag is used. Will attach the preprocessor output.


The following is the full output:

------------- Compiling /home/kurt/Flame/FlameAVC/build/source/main.o...
/opt/gcc/bin/powerpc-eabi-gcc -msoft-float -mcpu=405 -msdata -v -save-temps
-mmultiple -O2 -Wall -I/home/kurt/Flame/flame-ecos_install/include
-I/home/kurt/Flame/FlameAVC/build/include -ffunction-sections -fdata-sections
-fstrict-aliasing -D SBP2_NO_EXCLUSIVE  -D AVCTGT_DONT_ADD_ROM_ENTRY  -D
INCLUDE_OHCI -D DMASafeBuffersNeeded=1 -D INCLUDE_GUID_PLUGIN -D
ORANGELINK_PATCH=0 -D DBG -D logMsg=TNFprintf -D WALNUT -c
/home/kurt/Flame/FlameAVC/build/source/main.c -o
/home/kurt/Flame/FlameAVC/build/source/main.o
Reading specs from /opt/gcc/lib/gcc/powerpc-eabi/3.4.1/specs
Configured with: ../gcc-3.4.1/configure --prefix=/opt/gcc --target=powerpc-eabi
--enable-languages=c,c++ --with-newlib
--with-headers=../newlib-1.12.0/newlib/libc/include
Thread model: single
gcc version 3.4.1
 /opt/gcc/libexec/gcc/powerpc-eabi/3.4.1/cc1 -E -quiet -v
-I/home/kurt/Flame/flame-ecos_install/include
-I/home/kurt/Flame/FlameAVC/build/include -D SBP2_NO_EXCLUSIVE -D
AVCTGT_DONT_ADD_ROM_ENTRY -D INCLUDE_OHCI -D DMASafeBuffersNeeded=1 -D
INCLUDE_GUID_PLUGIN -D ORANGELINK_PATCH=0 -D DBG -D logMsg=TNFprintf -D WALNUT
/home/kurt/Flame/FlameAVC/build/source/main.c -msdata=default -msoft-float
-mcpu=405 -msdata -mmultiple -Wall -ffunction-sections -fdata-sections
-fstrict-aliasing -O2 -o main.i
#include "..." search starts here:
#include <...> search starts here:
 /home/kurt/Flame/flame-ecos_install/include
 /home/kurt/Flame/FlameAVC/build/include
 /opt/gcc/lib/gcc/powerpc-eabi/3.4.1/include
 /opt/gcc/lib/gcc/powerpc-eabi/3.4.1/../../../../powerpc-eabi/sys-include
 /opt/gcc/lib/gcc/powerpc-eabi/3.4.1/../../../../powerpc-eabi/include
End of search list.
In file included from /home/kurt/Flame/FlameAVC/build/source/main.c:2:
/home/kurt/Flame/FlameAVC/build/include/Flame.h:172:1: warning: multi-line comment
 /opt/gcc/libexec/gcc/powerpc-eabi/3.4.1/cc1 -fpreprocessed main.i
-msdata=default -quiet -dumpbase main.c -msoft-float -mcpu=405 -msdata
-mmultiple -auxbase-strip /home/kurt/Flame/FlameAVC/build/source/main.o -O2
-Wall -version -ffunction-sections -fdata-sections -fstrict-aliasing -o main.s
GNU C version 3.4.1 (powerpc-eabi)
	compiled by GNU C version 3.3.1 (SuSE Linux).
GGC heuristics: --param ggc-min-expand=64 --param ggc-min-heapsize=64337
/home/kurt/Flame/FlameAVC/build/source/main.c: In function `IdleLoop':
/home/kurt/Flame/FlameAVC/build/source/main.c:165: internal compiler error: in
rs6000_split_multireg_move, at config/rs6000/rs6000.c:10448
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
make: *** [/home/kurt/Flame/FlameAVC/build/source/main.o] Error 1

-- 
           Summary: using -msdata causes internal compiler error
           Product: gcc
           Version: 3.4.1
            Status: UNCONFIRMED
          Severity: critical
          Priority: P1
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: kurt at symbolicsound dot com
                CC: gcc-bugs at gcc dot gnu dot org
  GCC host triplet: i586-suse-linux
GCC target triplet: powerpc-*-eabi?


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16480

[Bug c/16480] using -msdata causes internal compiler error

[kurt at symbolicsound dot com]

------- Additional Comments From kurt at symbolicsound dot com  2004-07-11 21:39 -------
Created an attachment (id=6724)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=6724&action=view)
compiler output when -sdata is used


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16480

[Bug target/16480] using -msdata causes internal compiler error

[pinskia at gcc dot gnu dot org]

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16480

[Bug target/16480] using -msdata causes internal compiler error

[amodra at bigpond dot net dot au]

------- Additional Comments From amodra at bigpond dot net dot au  2004-08-25 07:11 -------
3.4.2 20040819 shows the bug too

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|                            |1
      Known to fail|                            |3.4.2
   Last reconfirmed|0000-00-00 00:00:00         |2004-08-25 07:11:51
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16480

[Bug target/16480] using -msdata causes internal compiler error

[amodra at bigpond dot net dot au]

------- Additional Comments From amodra at bigpond dot net dot au  2004-08-25 11:21 -------
Mainline fails similarly.  The failure results from this splitter

(define_split
  [(set (match_operand:DI 0 "nonimmediate_operand" "")
        (match_operand:DI 1 "input_operand" ""))]
  "reload_completed && !TARGET_POWERPC64
   && gpr_or_gpr_p (operands[0], operands[1])"
  [(pc)]
{ rs6000_split_multireg_move (operands[0], operands[1]); DONE; })

The "input_operand" predicate accepts any memory operand as the second operand.
 rs6000_split_multireg_move thus needs to accept anything that we accept in
rs6000_legitimate_address.  For this particular failure, that's a
(mem (symbol_ref (...))), which happens to satisfy legitimate_small_data_p.


-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |amodra at bigpond dot net
                   |dot org                     |dot au
             Status|NEW                         |ASSIGNED
           Keywords|                            |patch
      Known to fail|3.4.2                       |3.4.2 3.5.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16480

[Bug target/16480] using -msdata causes internal compiler error

[geoffk at geoffk dot org]

------- Additional Comments From geoffk at geoffk dot org  2004-08-26 00:03 -------
Subject: Re:  using -msdata causes internal compiler error

"amodra at bigpond dot net dot au" <gcc-bugzilla@gcc.gnu.org> writes:

> ------- Additional Comments From amodra at bigpond dot net dot au  2004-08-25 11:21 -------
> Mainline fails similarly.  The failure results from this splitter
> 
> (define_split
>   [(set (match_operand:DI 0 "nonimmediate_operand" "")
>         (match_operand:DI 1 "input_operand" ""))]
>   "reload_completed && !TARGET_POWERPC64
>    && gpr_or_gpr_p (operands[0], operands[1])"
>   [(pc)]
> { rs6000_split_multireg_move (operands[0], operands[1]); DONE; })
> 
> The "input_operand" predicate accepts any memory operand as the second operand.
>  rs6000_split_multireg_move thus needs to accept anything that we accept in
> rs6000_legitimate_address.  For this particular failure, that's a
> (mem (symbol_ref (...))), which happens to satisfy legitimate_small_data_p.

It's probably the code under this comment:

          /* We have now address involving an base register only.
             If we use one of the registers to address memory,
             we have change that register last.  */

I expect the right thing to do is simply do 

if (GET_CODE (breg) != SYMBOL_REF)
{
  if (! REG_P (breg)) abort();
  if (REGNO (breg) ...)
    j = ...;
}



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16480

[Bug target/16480] using -msdata causes internal compiler error

[amodra at bigpond dot net dot au]

------- Additional Comments From amodra at bigpond dot net dot au  2004-08-26 01:18 -------
More analysis in http://gcc.gnu.org/ml/gcc-patches/2004-08/msg02093.html

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16480

[Bug target/16480] using -msdata causes internal compiler error

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2004-08-26 01:20 -------
Subject: Bug 16480

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	amodra@gcc.gnu.org	2004-08-26 01:20:28

Modified files:
	gcc            : ChangeLog 
	gcc/config/rs6000: rs6000.c 

Log message:
	PR target/16480
	* config/rs6000/rs6000.c (rs6000_split_multireg_move): Don't abort
	on "(mem (symbol_ref ..))" rtl.  Look at LO_SUM base regs as well
	as PLUS base regs.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.5097&r2=2.5098
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/config/rs6000/rs6000.c.diff?cvsroot=gcc&r1=1.700&r2=1.701



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16480

[Bug target/16480] using -msdata causes internal compiler error

[amodra at bigpond dot net dot au]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
      Known to fail|3.4.2 3.5.0                 |3.2.3 3.3.4 3.4.0 3.4.1
                   |                            |3.4.2
      Known to work|                            |3.5.0
   Target Milestone|---                         |3.4.2


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16480

[Bug target/16480] using -msdata causes internal compiler error

[mmitchel at gcc dot gnu dot org]

------- Additional Comments From mmitchel at gcc dot gnu dot org  2004-08-29 18:12 -------
Postponed until GCC 3.4.3.

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16480

[Bug target/16480] using -msdata causes internal compiler error

[mmitchel at gcc dot gnu dot org]

------- Additional Comments From mmitchel at gcc dot gnu dot org  2004-08-29 18:14 -------
Postponed until GCC 3.4.3.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|3.4.2                       |3.4.3


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16480

[Bug target/16480] using -msdata causes internal compiler error

[mmitchel at gcc dot gnu dot org]

------- Additional Comments From mmitchel at gcc dot gnu dot org  2004-11-01 00:46 -------
Postponed until GCC 3.4.4.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|3.4.3                       |3.4.4


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16480

[Bug target/16480] using -msdata causes internal compiler error

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2004-11-10 03:14 -------
Subject: Bug 16480

CVSROOT:	/cvs/gcc
Module name:	gcc
Branch: 	gcc-3_4-branch
Changes by:	amodra@gcc.gnu.org	2004-11-10 03:14:42

Modified files:
	gcc            : ChangeLog 
	gcc/config/rs6000: rs6000.c 

Log message:
	PR target/16480
	2004-08-26  Alan Modra  <amodra@bigpond.net.au>
	* config/rs6000/rs6000.c (rs6000_split_multireg_move): Don't abort
	on "(mem (symbol_ref ..))" rtl.  Look at LO_SUM base regs as well
	as PLUS base regs.
	2004-08-01  Geoffrey Keating  <geoffk@apple.com>
	* config/rs6000/rs6000.c (rs6000_split_multireg_move): Just abort
	if trying to *store* to a non-offsettable address.
	2004-07-30  Geoffrey Keating  <geoffk@apple.com>
	* config/rs6000/rs6000.c (rs6000_split_multireg_move): Cope with
	non-offsettable addresses being moved into multiple GPRs.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=2.2326.2.682&r2=2.2326.2.683
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/config/rs6000/rs6000.c.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.576.2.33&r2=1.576.2.34



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16480

[Bug target/16480] using -msdata causes internal compiler error

[amodra at bigpond dot net dot au]

------- Additional Comments From amodra at bigpond dot net dot au  2004-11-10 03:20 -------
Fixed mainline and 3.4

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16480

[Bug target/16480] using -msdata causes internal compiler error

[amodra at bigpond dot net dot au]

------- Additional Comments From amodra at bigpond dot net dot au  2004-11-24 02:14 -------
*** Bug 17337 has been marked as a duplicate of this bug. ***

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |osv at javad dot ru


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16480