[Bug c/44581] internal compiler error: in simplify_subreg

[Bug c/44581] internal compiler error: in simplify_subreg

[b dot gunreben at web dot de]

------- Comment #1 from b dot gunreben at web dot de  2010-06-18 15:32 -------
Created an attachment (id=20939)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=20939&action=view)
preprocessed source


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44581

[Bug c/44581] New: internal compiler error: in simplify_subreg

[b dot gunreben at web dot de]

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when trying to compile fftw3, I get the following error:
gcc -O2 -g -mpa-risc-1-0 -c r2cf_16.i -fPIC
r2cf_16.i: In function ‘r2cf_16’:
r2cf_16.i:119:1: internal compiler error: in simplify_subreg, at
simplify-rtx.c:5143
Please submit a full bug report,

gcc is:
gcc -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/lib/gcc/hppa2.0-suse-linux/4.5/lto-wrapper
Target: hppa2.0-suse-linux
Configured with: ../configure --prefix=/usr --infodir=/usr/share/info
--mandir=/usr/share/man --libdir=/usr/lib --libexecdir=/usr/lib
--enable-languages=c,c++,objc,fortran,obj-c++,java --enable-checking=release
--with-gxx-include-dir=/usr/include/c++/4.5 --enable-ssp --disable-libssp
--disable-plugin --with-bugurl=http://bugs.opensuse.org/
--with-pkgversion='SUSE Linux' --disable-libgcj --disable-libmudflap
--with-slibdir=/lib --with-system-zlib --enable-__cxa_atexit
--enable-libstdcxx-allocator=new --disable-libstdcxx-pch
--enable-version-specific-runtime-libs --program-suffix=-4.5
--enable-linux-futex --without-system-libunwind --build=hppa2.0-suse-linux
Thread model: posix
gcc version 4.5.0 20100604 [gcc-4_5-branch revision 160292] (SUSE Linux)

attaching preprocessed source.


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           Summary: internal compiler error: in simplify_subreg
           Product: gcc
           Version: 4.5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: b dot gunreben at web dot de
GCC target triplet: hppa2.0-suse-linux


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44581

[Bug target/44581] [4.5/4.6 Regression] internal compiler error: in simplify_subreg

[danglin at gcc dot gnu dot org]

------- Comment #2 from danglin at gcc dot gnu dot org  2010-07-03 23:39 -------
Breakpoint 1, simplify_subreg (outermode=DFmode, op=0x40167760, 
    innermode=DFmode, byte=80) at ../../gcc/gcc/simplify-rtx.c:5120
5120      gcc_assert (byte < GET_MODE_SIZE (innermode));
(gdb) p byte
$3 = 80
(gdb) p innermode
$4 = DFmode
(gdb) bt
#0  simplify_subreg (outermode=DFmode, op=0x40167760, innermode=DFmode, 
    byte=80) at ../../gcc/gcc/simplify-rtx.c:5120
#1  0x0152ac74 in avoid_constant_pool_reference (x=0x1d)
    at ../../gcc/gcc/simplify-rtx.c:193
#2  0x0152ac74 in avoid_constant_pool_reference (x=0x401aa7e0)
    at ../../gcc/gcc/simplify-rtx.c:193
#3  0x013ffbe4 in commutative_operand_precedence (op=0x401aa7e0)
    at ../../gcc/gcc/rtlanal.c:2922
#4  0x013ffe24 in swap_commutative_operands_p (x=0x401aa7e0, y=0x401aa810)
    at ../../gcc/gcc/rtlanal.c:2978
#5  0x0153f1e8 in simplify_rtx (x=0x401aa7d0)
    at ../../gcc/gcc/simplify-rtx.c:5493
#6  0x006cde5c in cselib_expand_value_rtx_1 (orig=0x401aa7d0, evd=0xc0627008, 
    max_depth=4) at ../../gcc/gcc/cselib.c:1504

(gdb) p debug_rtx (op)
(const_double:DF -1257966797 [0xb504f333]
7.07106781186547572737310929369414225220680236816e-1 [0x0.b504f333f9de68p+0])

PS:
-mpa-risc-1-0 reduces the number of floating point registers.  This
was only needed on old series 800 servers.  As far a I know, none of these
machines are supported by Linux.


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danglin at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |danglin at gcc dot gnu dot
                   |                            |org
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2010-07-03 23:39:42
               date|                            |
            Summary|internal compiler error: in |[4.5/4.6 Regression]
                   |simplify_subreg             |internal compiler error: in
                   |                            |simplify_subreg


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44581

[Bug target/44581] [4.5/4.6 Regression] internal compiler error: in simplify_subreg

[rguenth at gcc dot gnu dot org]

-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |4.5.1


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44581

[Bug target/44581] [4.5/4.6 Regression] internal compiler error: in simplify_subreg

[rguenth at gcc dot gnu dot org]

-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P3                          |P4


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44581

[Bug target/44581] [4.5/4.6 Regression] internal compiler error: in simplify_subreg

[rguenth at gcc dot gnu dot org]

------- Comment #3 from rguenth at gcc dot gnu dot org  2010-07-31 09:29 -------
GCC 4.5.1 is being released, adjusting target milestone.


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rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|4.5.1                       |4.5.2


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44581

[Bug target/44581] [4.5/4.6 Regression] internal compiler error: in simplify_subreg

[danglin at gcc dot gnu dot org]

------- Comment #4 from danglin at gcc dot gnu dot org  2010-08-07 22:04 -------
Appears to be fixed on trunk.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44581

[Bug target/44581] [4.5/4.6 Regression] internal compiler error: in simplify_subreg

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44581

Richard Guenther <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|4.5.2                       |4.5.3

--- Comment #5 from Richard Guenther <rguenth at gcc dot gnu.org> 2010-12-16 13:03:07 UTC ---
GCC 4.5.2 is being released, adjusting target milestone.