[Bug c++/32413] New: [4.3 Regression] internal compiler error: in reload_cse_simplify_operands, at postreload.c:396

[Bug c++/32413] New: [4.3 Regression] internal compiler error: in reload_cse_simplify_operands, at postreload.c:396

[jojelino at gmail dot com]

svn revision:125876
cc -c -mno-cygwin -mdll -fno-rtti -mthreads -pipe -D_WINGDI_ -DUCLIBCPP
-D_GLIBC
PP_HAVE_MBSTATE_T -D_WIN32_IE=0x0500 -msse4a -DARCH_IS_IA32 -DARCH_IS_32BIT
-DHA
VE_MMX -w -DNDEBUG -UDEBUG -DFFDEBUG=0 -I. -I.. -Iuclibc++ -Ibaseclasses
-I../ba
seclasses -IimgFilters -I../imgFilters -Implayer -I../mplayer -Isettings
-I../se
ttings -Isettings/filters -I../settings/filters -Icodecs -I../codecs
-Isubtitles
 -I../subtitles -Iconvert -I../convert -Idialog -I../dialog -IaudioFilters
-I../
audioFilters -Icygwin -I../cygwin -Iffmpeg -I../ffmpeg -Iacm -I../acm -Ixiph
-I.
./xiph -Ifilters -I../filters -Imuxers -I../muxers -O4 -march=core2
-mtune=core2
 -fomit-frame-pointer -finline-functions -finline -frename-registers -fweb
-funi
t-at-a-time -o ffdshow_all.o ffdshow_all.cpp

In file included from ffdshow_all.cpp:37:
DeCSSInputPin.cpp: In member function 'virtual long int
CDeCSSInputPin::Set(cons
t GUID&, ULONG, void*, ULONG, void*, ULONG)':
DeCSSInputPin.cpp:254: error: insn does not satisfy its constraints:
(insn 1194 592 593 19 CSSscramble.cpp:174 (set (reg:QI 22 xmm1 [orig:545
t5.7036
1 ] [545])
        (reg:QI 0 ax)) 43 {*movqi_1} (nil))
DeCSSInputPin.cpp:254: internal compiler error: in
reload_cse_simplify_operands,
 at postreload.c:396
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
make: *** [ffdshow_all.o] Error 1
cc: warning: -pipe ignored because -save-temps specified
In file included from ffdshow_all.cpp:38:
DeCSSInputPin.cpp: In member function 'virtual long int
CDeCSSInputPin::Set(cons
t GUID&, ULONG, void*, ULONG, void*, ULONG)':
DeCSSInputPin.cpp:254: error: insn does not satisfy its constraints:
(insn 1194 592 593 19 CSSscramble.cpp:174 (set (reg:QI 22 xmm1 [orig:545
t5.7036
1 ] [545])
        (reg:QI 0 ax)) 43 {*movqi_1} (nil))
DeCSSInputPin.cpp:254: internal compiler error: in
reload_cse_simplify_operands,
 at postreload.c:396
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.


-- 
           Summary: [4.3 Regression] internal compiler error: in
                    reload_cse_simplify_operands, at postreload.c:396
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Severity: major
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: jojelino at gmail dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32413

[Bug c++/32413] [4.3 Regression] internal compiler error: in reload_cse_simplify_operands, at postreload.c:396

[jojelino at gmail dot com]

------- Comment #1 from jojelino at gmail dot com  2007-06-20 08:39 -------
Created an attachment (id=13740)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=13740&action=view)
preprocessed file


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32413

[Bug target/32413] [4.3 Regression] internal compiler error: in reload_cse_simplify_operands, at postreload.c:396

[pinskia at gcc dot gnu dot org]

-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|major                       |normal
          Component|c++                         |target
 GCC target triplet|                            |i686-cygwin


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32413

[Bug target/32413] [4.3 Regression] internal compiler error: in reload_cse_simplify_operands, at postreload.c:396

[pinskia at gcc dot gnu dot org]

-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |pinskia at gcc dot gnu dot
                   |                            |org
   Target Milestone|---                         |4.3.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32413

[Bug target/32413] [4.3 Regression] internal compiler error: in reload_cse_simplify_operands, at postreload.c:396

[ubizjak at gmail dot com]

------- Comment #2 from ubizjak at gmail dot com  2007-06-22 09:50 -------
The problem here is exposed with core2_cost table, where mmxsse_to_integer is
as low (2 units) as move between integer registers (2 units). Such a low value
causes gcc to happily move SImode values between SSE and integer registers.

The problem itself is in ix86_modes_tieable_p(). Since all integer modes are
tieable, They have to be tieable in ALL register classes. Due to this, we must
enable HImode and QImode moves to, from and between SSE and MMX register.

A question arises, if this is a wise thing to do. Having all integer modes
wandering around in SSE as well as integer registers is not a good thing, as we
will have many moves between these sets (you can't add a SImode value in SSE,
SSE regs can't be index registers, etc). Due to this, perhaps the best solution
is to artifically raise mmxsse_to_integer to 8 units, and this will effectively
prevent moves to and from register sets.


-- 

ubizjak at gmail dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2007-06-22 09:50:39
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32413

[Bug target/32413] [4.3 Regression] internal compiler error: in reload_cse_simplify_operands, at postreload.c:396

[ubizjak at gmail dot com]

------- Comment #3 from ubizjak at gmail dot com  2007-06-22 12:02 -------
Patch at http://gcc.gnu.org/ml/gcc-patches/2007-06/msg01615.html


-- 

ubizjak at gmail dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                URL|                            |http://gcc.gnu.org/ml/gcc-
                   |                            |patches/2007-
                   |                            |06/msg01615.html
           Keywords|                            |patch


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32413

[Bug target/32413] [4.3 Regression] internal compiler error: in reload_cse_simplify_operands, at postreload.c:396

[uros at gcc dot gnu dot org]

------- Comment #4 from uros at gcc dot gnu dot org  2007-06-22 17:51 -------
Subject: Bug 32413

Author: uros
Date: Fri Jun 22 17:51:06 2007
New Revision: 125951

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=125951
Log:
    PR target/32413
    * config/i386/i386.c (ix86_register_move_cost): Rise the cost of
    moves between MMX/SSE registers to at least 8 units to prevent
    ICE caused by non-tieable SI/HI/QImodes in SSE registers.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/i386/i386.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32413

[Bug target/32413] [4.3 Regression] internal compiler error: in reload_cse_simplify_operands, at postreload.c:396

[ubizjak at gmail dot com]

------- Comment #5 from ubizjak at gmail dot com  2007-06-22 18:55 -------
Fixed.


-- 

ubizjak at gmail dot com changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32413