[Bug target/66882] New: [4.9 Regression] ICE (Segmentation fault) on powerpc64-linux-gnu building libjava

["doko at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66882

            Bug ID: 66882
           Summary: [4.9 Regression] ICE (Segmentation fault) on
                    powerpc64-linux-gnu building libjava
           Product: gcc
           Version: 5.1.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: doko at gcc dot gnu.org
  Target Milestone: ---

r225765 for powerpc64-linux-gnu on the 4.9 branch fails to build in libjava,
while r225135 succeeded. both powerpc-linux-gnu (no libjava biarch) and
powerpc64le-linux-gnu succeed to build.

/ÂPKGBUILDDIRÂ/src/libjava/classpath/javax/swing/plaf/basic/BasicRadioButtonUI.java:132:0:
internal compiler error: Segmentation fault
     AbstractButton b = (AbstractButton) c;
 ^
0x105130eb crash_signal
        ../../src/gcc/toplev.c:337
0x105d5c1c get_use_from_ptr
        ../../src/gcc/tree-ssa-operands.h:112
0x105d5c1c op_iter_next_tree
        ../../src/gcc/ssa-iterators.h:544
0x105d5c1c likely_value
        ../../src/gcc/tree-ssa-ccp.c:639
0x105d5c1c evaluate_stmt
        ../../src/gcc/tree-ssa-ccp.c:1596
0x105d8057 visit_assignment
        ../../src/gcc/tree-ssa-ccp.c:2158
0x10657833 simulate_stmt
        ../../src/gcc/tree-ssa-propagate.c:329
0x10657f2f simulate_block
        ../../src/gcc/tree-ssa-propagate.c:452
0x10657f2f ssa_propagate(ssa_prop_result (*)(gimple_statement_base*,
edge_def**, tree_node**), ssa_prop_result (*)(gimple_statement_base*))
        ../../src/gcc/tree-ssa-propagate.c:869
0x105d2733 do_ssa_ccp
        ../../src/gcc/tree-ssa-ccp.c:2282
0x105d2733 execute
        ../../src/gcc/tree-ssa-ccp.c:2325
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <file:///usr/share/doc/gcc-4.9/README.Bugs> for instructions.
Makefile:10645: recipe for target 'javax/swing/plaf/basic.lo' failed
make[5]: *** [javax/swing/plaf/basic.lo] Error 1

gcc configured with
-v --with-pkgversion='Debian 4.9.3-2'
--with-bugurl='file:///usr/share/doc/gcc-4.9/README.Bugs'
--enable-languages=c,c++,java,go,d,fortran,objc,obj-c++ --prefix=/usr
--program-suffix=-4.9 --enable-shared --enable-linker-build-id 
--libexecdir=/usr/lib --without-included-gettext --enable-threads=posix
--with-gxx-include-dir=/usr/include/c++/4.9 --libdir=/usr/lib --enable-nls
--with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug
--enable-libstdcxx-time=yes --enable-gnu-unique-object --disable-libsanitizer
--disable-libquadmath --enable-plugin --with-system-zlib
--disable-browser-plugin --enable-java-awt=gtk --enable-gtk-cairo
--with-java-home=/usr/lib/jvm/java-1.5.0-gcj-4.9-ppc64/jre --enable-java-home
--with-jvm-root-dir=/usr/lib/jvm/java-1.5.0-gcj-4.9-ppc64
--with-jvm-jar-dir=/usr/lib/jvm-exports/java-1.5.0-gcj-4.9-ppc64
--with-arch-directory=ppc64 --with-ecj-jar=/usr/share/java/eclipse-ecj.jar
--enable-objc-gc --enable-secureplt --disable-softfloat
--enable-targets=powerpc64-linux,powerpc-linux --enable-multiarch
--with-long-double-128 --enable-multilib --enable-checking=release
--build=powerpc64-linux-gnu --host=powerpc64-linux-gnu
--target=powerpc64-linux-gnu