[Bug c++/42465] New: internal compiler error: in extract_insn, at recog.c:2001

["gccbugzilla at taggedtype dot net" <gcc-bugzilla@gcc.gnu.org>]

I am experiencing the above error when compiling a Boost Math test. The output
of g++ -v is below and I will attach the preprocessed sources.

/usr/bin/g++ -v -save-temps -o
build/debug/vendor/boost_1_39_0/libs/math/octonion/octonion_test.o -c -Wall
-Wno-unused -maix32 -O0 -ffloat-store -g -pthread -mxl-compat -fPIC
-mno-fp-in-toc -mno-sum-in-toc -fno-threadsafe-statics -fpermissive
-Wno-missing-braces -D_DEBUG -DBOOST_ALL_NO_LIB -DBOOST_SPIRIT_THREADSAFE
-Ivendor/boost_1_39_0 vendor/boost_1_39_0/libs/math/octonion/octonion_test.cpp
Using built-in specs.
Target: powerpc-ibm-aix6.1.2.0
Configured with: ../configure --with-as=/usr/bin/as --with-ld=/usr/bin/ld
--enable-languages=c,c++ --prefix=/opt/gcc434 --enable-threads=posix
--enable-tls --enable-version-specific-runtime-libs --disable-nls
--enable-decimal-float=dpd --with-gmp=/opt/freeware
Thread model: aix
gcc version 4.3.4 (GCC)
COLLECT_GCC_OPTIONS='-v' '-save-temps' '-o'
'build/debug/vendor/boost_1_39_0/libs/math/octonion/octonion_test.o' '-c'
'-Wall' '-Wno-unused' '-maix32' '-O0' '-ffloat-store' '-g' '-pthread'
'-mxl-compat' '-fPIC' '-mno-fp-in-toc' '-mno-sum-in-toc'
'-fno-threadsafe-statics' '-fpermissive' '-Wno-missing-braces' '-D_DEBUG'
'-DBOOST_ALL_NO_LIB' '-DBOOST_SPIRIT_THREADSAFE' '-Ivendor/boost_1_39_0'
'-shared-libgcc'
 /opt/gcc434/libexec/gcc/powerpc-ibm-aix6.1.2.0/4.3.4/cc1plus -E -quiet -v
-Ivendor/boost_1_39_0 -imultilib pthread -D_ALL_SOURCE -D__COMPATMATH__
-D_THREAD_SAFE -D_DEBUG -DBOOST_ALL_NO_LIB -DBOOST_SPIRIT_THREADSAFE
vendor/boost_1_39_0/libs/math/octonion/octonion_test.cpp -maix32 -mxl-compat
-mno-fp-in-toc -mno-sum-in-toc -Wall -Wno-unused -Wno-missing-braces
-ffloat-store -fPIC -fno-threadsafe-statics -fpermissive -fworking-directory
-O0 -fpch-preprocess -o octonion_test.ii
ignoring nonexistent directory
"/opt/gcc434/lib/gcc/powerpc-ibm-aix6.1.2.0/4.3.4/../../../../powerpc-ibm-aix6.1.2.0/include"
#include "..." search starts here:
#include <...> search starts here:
 vendor/boost_1_39_0
 /opt/gcc434/lib/gcc/powerpc-ibm-aix6.1.2.0/4.3.4/include/c++

/opt/gcc434/lib/gcc/powerpc-ibm-aix6.1.2.0/4.3.4/include/c++/powerpc-ibm-aix6.1.2.0/pthread
 /opt/gcc434/lib/gcc/powerpc-ibm-aix6.1.2.0/4.3.4/include/c++/backward
 /usr/local/include
 /opt/gcc434/include
 /opt/gcc434/lib/gcc/powerpc-ibm-aix6.1.2.0/4.3.4/include
 /opt/gcc434/lib/gcc/powerpc-ibm-aix6.1.2.0/4.3.4/include-fixed
 /usr/include
End of search list.
COLLECT_GCC_OPTIONS='-v' '-save-temps' '-o'
'build/debug/vendor/boost_1_39_0/libs/math/octonion/octonion_test.o' '-c'
'-Wall' '-Wno-unused' '-maix32' '-O0' '-ffloat-store' '-g' '-pthread'
'-mxl-compat' '-fPIC' '-mno-fp-in-toc' '-mno-sum-in-toc'
'-fno-threadsafe-statics' '-fpermissive' '-Wno-missing-braces' '-D_DEBUG'
'-DBOOST_ALL_NO_LIB' '-DBOOST_SPIRIT_THREADSAFE' '-Ivendor/boost_1_39_0'
'-shared-libgcc'
 /opt/gcc434/libexec/gcc/powerpc-ibm-aix6.1.2.0/4.3.4/cc1plus -fpreprocessed
octonion_test.ii -quiet -dumpbase octonion_test.cpp -maix32 -mxl-compat
-mno-fp-in-toc -mno-sum-in-toc -auxbase-strip
build/debug/vendor/boost_1_39_0/libs/math/octonion/octonion_test.o -g -O0 -Wall
-Wno-unused -Wno-missing-braces -version -ffloat-store -fPIC
-fno-threadsafe-statics -fpermissive -o octonion_test.s
GNU C++ (GCC) version 4.3.4 (powerpc-ibm-aix6.1.2.0)
        compiled by GNU C version 4.3.4, GMP version 4.3.1, MPFR version
2.4.1-p5.
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
Compiler executable checksum: e9638aa3a22c713b1251b5cd2218f306
vendor/boost_1_39_0/boost/math/octonion.hpp: In function 'bool
boost::math::operator==(const boost::math::quaternion<T>&, const
boost::math::octonion<T>&) [with T = long double]':
vendor/boost_1_39_0/boost/math/octonion.hpp:1786: error: unrecognizable insn:
(insn 237 236 238 vendor/boost_1_39_0/boost/math/octonion.hpp:1785 (set (reg:DF
37 5)
        (mem/u/c:DF (plus:SI (reg:SI 2 2)
                (const:SI (minus:SI (symbol_ref/u:SI ("*LC..26") [flags 0x2])
                        (symbol_ref:SI ("*LCTOC..1"))))) [0 S8 A8])) -1 (nil))
vendor/boost_1_39_0/boost/math/octonion.hpp:1786: internal compiler error: in
extract_insn, at recog.c:2001
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.


-- 
           Summary: internal compiler error: in extract_insn, at
                    recog.c:2001
           Product: gcc
           Version: 4.3.4
            Status: UNCONFIRMED
          Severity: blocker
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: gccbugzilla at taggedtype dot net
 GCC build triplet: powerpc-ibm-aix6.1.2.0
  GCC host triplet: powerpc-ibm-aix6.1.2.0
GCC target triplet: powerpc-ibm-aix6.1.2.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42465