[Bug c++/45400] New: XBMC AudioEngine Compilation C++ Internal Compiler Error /w Optimization

[Bug c++/45400] New: XBMC AudioEngine Compilation C++ Internal Compiler Error /w Optimization

[Zeqadious at gmail dot com]

When compiling XBMC from the AudioEngine Branch I get an internal compiler
error.

Error:
g++ -MD -c -O2 -fPIC -DPIC -D_REENTRANT -D__STDC_LIMIT_MACROS
-D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -g -D_DEBUG -Wall -fPIC -DPIC
-D_REENTRANT -D__STDC_LIMIT_MACROS -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64
-g -D_DEBUG -Wall -fPIC -DPIC -D_REENTRANT -D__STDC_LIMIT_MACROS
-D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -g -D_DEBUG -Wall -D_LINUX
-D_FILE_DEFINED -D__STDC_CONSTANT_MACROS -DBIN_INSTALL_PATH="\"/usr/lib/xbmc\""
-DINSTALL_PATH="\"/usr/share/xbmc\"" -D'SVN_REV="33081.AE-ZeQ"' -DHAVE_CONFIG_H
 -I. -I../../ -I../../linux -I../../../guilib -I../../utils -I../dvdplayer
-I../dvdplayer/Codecs/ffmpeg -I.. -DDBUS_API_SUBJECT_TO_CHANGE -D_GNU_SOURCE=1
-D_REENTRANT -I/arch/sources/community/SVN_xbmc/src/XBMC-AE-r33081
-I/usr/include/ -I/usr/include/SDL -I/usr/include/alsa -I/usr/include/dbus-1.0
-I/usr/include/freetype2 -I/usr/include/fribidi -I/usr/include/glib-2.0
-I/usr/include/hal -I/usr/include/libpng14 -I/usr/include/lzo
-I/usr/include/mysql -I/usr/lib/dbus-1.0/include -I/usr/lib/glib-2.0/include
AEConvert.cpp -save-temps -o AEConvert.o
AEConvert.cpp: In static member function 'static unsigned int
CAEConvert::Float_S16BE(float*, unsigned int, uint8_t*)':
AEConvert.cpp:425:1: internal compiler error: in trunc_int_for_mode, at
explow.c:56
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.


-- 
           Summary: XBMC AudioEngine Compilation C++ Internal Compiler Error
                    /w Optimization
           Product: gcc
           Version: 4.5.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: Zeqadious at gmail dot com
 GCC build triplet: x86_64-unknown-linux-gnu
  GCC host triplet: x86_64-unknown-linux-gnu
GCC target triplet: x86_64-unknown-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45400

[Bug c++/45400] XBMC AudioEngine Compilation C++ Internal Compiler Error /w Optimization

[Zeqadious at gmail dot com]

------- Comment #1 from Zeqadious at gmail dot com  2010-08-24 18:42 -------
the preprocessed file was too big to attach so here is a link to its location:
ftp://nauseamedialis.org/zeqadious/GCC_Bug/AEConvert.prep

I don't know C, or C++, so lets hope this is enough information for helping
track this bug down.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45400

[Bug c++/45400] XBMC AudioEngine Compilation C++ Internal Compiler Error /w Optimization

[jakub at gcc dot gnu dot org]

------- Comment #2 from jakub at gcc dot gnu dot org  2010-08-24 18:56 -------
#0  fancy_abort (file=0xf0ff20 "../../gcc/explow.c", line=56, function=0xf101e0
"trunc_int_for_mode") at ../../gcc/diagnostic.c:763
#1  0x00000000006c4c17 in trunc_int_for_mode (c=255, mode=V4HImode) at
../../gcc/explow.c:56
#2  0x00000000006b1ff0 in gen_int_mode (c=255, mode=V4HImode) at
../../gcc/emit-rtl.c:459
#3  0x0000000000d9c3c8 in simplify_and_const_int (x=0x0, mode=V4HImode,
varop=0x7fffee342060, constop=255) at ../../gcc/combine.c:8989
#4  0x0000000000d9e82d in simplify_shift_const_1 (code=LSHIFTRT,
result_mode=SImode, varop=0x7fffee325020, orig_count=24)
    at ../../gcc/combine.c:10024
#5  0x0000000000d9e9e7 in simplify_shift_const (x=0x0, code=LSHIFTRT,
result_mode=SImode, varop=0x7fffee342048, count=24)
    at ../../gcc/combine.c:10073
#6  0x0000000000d95ade in expand_compound_operation (x=0x7fffee33d3e0) at
../../gcc/combine.c:6468
#7  0x0000000000d92ae7 in combine_simplify_rtx (x=0x7fffee33d3e0,
op0_mode=DImode, in_dest=0) at ../../gcc/combine.c:5486

debug_rtx (0x7fffee33d3e0)
(zero_extract:SI (subreg:DI (reg:V4HI 264) 0)
    (const_int 8 [0x8])
    (const_int 8 [0x8]))

Doesn't ICE on the trunk (though, could be latent there).  Trying to distill
smaller testcase...


-- 

jakub at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2010-08-24 18:56:25
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45400

[Bug c++/45400] XBMC AudioEngine Compilation C++ Internal Compiler Error /w Optimization

[jakub at gcc dot gnu dot org]

------- Comment #3 from jakub at gcc dot gnu dot org  2010-08-24 19:57 -------
Reduced testcase:

typedef int __m64 __attribute__ ((__vector_size__ (8), __may_alias__));
typedef int __v2si __attribute__ ((__vector_size__ (8)));
typedef float __v4sf __attribute__ ((__vector_size__ (16)));

static __inline__ unsigned short bar (unsigned short x)
{
  return ((x << 8) | (x >> 8));
}

unsigned int
foo (float *x, short *y)
{
  __v4sf b = (__v4sf){ 32767.5f, 32767.5f, 32767.5f, 32767.5f };
  __v4sf c = __builtin_ia32_mulps (*(__v4sf *) x, b);
  __v4sf d = __builtin_ia32_movhlps (c, c);
  __v2si e = __builtin_ia32_cvtps2pi (c);
  __v2si f = __builtin_ia32_cvtps2pi (d);
  __m64 g = (__m64) __builtin_ia32_packssdw (e, f);
  __builtin_memcpy (y, &g, sizeof (short) * 4);
  y[0] = bar (y[0]);
}


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45400

[Bug c++/45400] XBMC AudioEngine Compilation C++ Internal Compiler Error /w Optimization

[jakub at gcc dot gnu dot org]

------- Comment #4 from jakub at gcc dot gnu dot org  2010-08-24 21:12 -------
On the trunk r163189 "fixes" this, so I guess it just went latent.


-- 

jakub at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |jakub at gcc dot gnu dot org
                   |dot org                     |
             Status|NEW                         |ASSIGNED
   Last reconfirmed|2010-08-24 18:56:25         |2010-08-24 21:12:52
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45400

[Bug c++/45400] XBMC AudioEngine Compilation C++ Internal Compiler Error /w Optimization

[hjl dot tools at gmail dot com]

------- Comment #5 from hjl dot tools at gmail dot com  2010-08-24 22:58 -------
It is caused by revision 149780:

http://gcc.gnu.org/ml/gcc-cvs/2009-07/msg00662.html


-- 

hjl dot tools at gmail dot com changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45400

[Bug rtl-optimization/45400] XBMC AudioEngine Compilation C++ Internal Compiler Error /w Optimization

[jakub at gcc dot gnu dot org]

------- Comment #6 from jakub at gcc dot gnu dot org  2010-08-25 09:29 -------
Created an attachment (id=21559)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=21559&action=view)
gcc46-pr45400.patch

Untested fix.
I think it is already wrong to go through SUBREG that is changing mode class,
already before hitting Adam's code the routine happily optimizes a normal
integer shift with a vector shift of the other direction into AND mask.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45400

[Bug rtl-optimization/45400] XBMC AudioEngine Compilation C++ Internal Compiler Error /w Optimization

[jakub at gcc dot gnu dot org]

------- Comment #7 from jakub at gcc dot gnu dot org  2010-08-25 17:49 -------
Subject: Bug 45400

Author: jakub
Date: Wed Aug 25 17:49:26 2010
New Revision: 163551

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=163551
Log:
        PR rtl-optimization/45400
        * combine.c (simplify_shift_const_1) <case SUBREG>: Only use
        SUBREG_REG if both modes are of MODE_INT class.

        * g++.dg/other/i386-8.C: New test.

Added:
    trunk/gcc/testsuite/g++.dg/other/i386-8.C
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/combine.c
    trunk/gcc/testsuite/ChangeLog


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45400

[Bug rtl-optimization/45400] XBMC AudioEngine Compilation C++ Internal Compiler Error /w Optimization

[jakub at gcc dot gnu dot org]

------- Comment #8 from jakub at gcc dot gnu dot org  2010-08-25 21:24 -------
Subject: Bug 45400

Author: jakub
Date: Wed Aug 25 21:23:57 2010
New Revision: 163554

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=163554
Log:
        PR rtl-optimization/45400
        * combine.c (simplify_shift_const_1) <case SUBREG>: Only use
        SUBREG_REG if both modes are of MODE_INT class.

        * g++.dg/other/i386-8.C: New test.

Added:
    branches/gcc-4_5-branch/gcc/testsuite/g++.dg/other/i386-8.C
Modified:
    branches/gcc-4_5-branch/gcc/ChangeLog
    branches/gcc-4_5-branch/gcc/combine.c
    branches/gcc-4_5-branch/gcc/testsuite/ChangeLog


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45400

[Bug rtl-optimization/45400] XBMC AudioEngine Compilation C++ Internal Compiler Error /w Optimization

[jakub at gcc dot gnu dot org]

------- Comment #9 from jakub at gcc dot gnu dot org  2010-08-25 21:27 -------
Fixed.


-- 

jakub at gcc dot gnu dot org changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45400