[Bug other/77332] New: ICE when building gcc 6.2 (with gcc 6,1.0)

["gcc.hall at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77332

            Bug ID: 77332
           Summary: ICE when building gcc 6.2 (with gcc 6,1.0)
           Product: gcc
           Version: 6.1.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: other
          Assignee: unassigned at gcc dot gnu.org
          Reporter: gcc.hall at gmail dot com
  Target Milestone: ---

Linux x86_64.

Configured with: ../configure --disable-multilib --enable-languages=c,c++

The build failed with:-  

/tmp/gcc-6.2.0/obj/./prev-gcc/xg++ -B/tmp/gcc-6.2.0/obj/./prev-gcc/
-B/usr/local/x86_64-pc-linux-gnu/bin/ -nostdinc++
-B/tmp/gcc-6.2.0/obj/prev-x86_64-pc-linux-gnu/libstdc++-v3/src/.libs
-B/tmp/gcc-6.2.0/obj/prev-x86_64-pc-linux-gnu/libstdc++-v3/libsupc++/.libs 
-I/tmp/gcc-6.2.0/obj/prev-x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu
 -I/tmp/gcc-6.2.0/obj/prev-x86_64-pc-linux-gnu/libstdc++-v3/include 
-I/tmp/gcc-6.2.0/libstdc++-v3/libsupc++
-L/tmp/gcc-6.2.0/obj/prev-x86_64-pc-linux-gnu/libstdc++-v3/src/.libs
-L/tmp/gcc-6.2.0/obj/prev-x86_64-pc-linux-gnu/libstdc++-v3/libsupc++/.libs
-fno-PIE -c   -g -O2 -gtoggle -DIN_GCC     -fno-exceptions -fno-rtti
-fasynchronous-unwind-tables -W -Wall -Wno-narrowing -Wwrite-strings
-Wcast-qual -Wmissing-format-attribute -Woverloaded-virtual -pedantic
-Wno-long-long -Wno-variadic-macros -Wno-overlength-strings   -DHAVE_CONFIG_H
-I. -I. -I../../gcc -I../../gcc/. -I../../gcc/../include
-I../../gcc/../libcpp/include -I/tmp/gcc-6.2.0/obj/./gmp -I/tmp/gcc-6.2.0/gmp
-I/tmp/gcc-6.2.0/obj/./mpfr -I/tmp/gcc-6.2.0/mpfr -I/tmp/gcc-6.2.0/mpc/src 
-I../../gcc/../libdecnumber -I../../gcc/../libdecnumber/bid -I../libdecnumber
-I../../gcc/../libbacktrace -I/tmp/gcc-6.2.0/obj/./isl/include
-I/tmp/gcc-6.2.0/isl/include  -o insn-latencytab.o -MT insn-latencytab.o -MMD
-MP -MF ./.deps/insn-latencytab.TPo insn-latencytab.c
../../gcc/lto/lto-lang.c: In function ‘void lto_define_builtins(tree, tree)’:
../../gcc/lto/lto-lang.c:727:1: internal compiler error: in df_refs_verify, at
df-scan.c:4022
 }
 ^
0xc21563 df_refs_verify
        ../../gcc/df-scan.c:4022
0xc2175f df_insn_refs_verify
        ../../gcc/df-scan.c:4102
0xc21928 df_bb_verify
        ../../gcc/df-scan.c:4131
0xc21e76 df_scan_verify()
        ../../gcc/df-scan.c:4263
0xc0cc29 df_verify()
        ../../gcc/df-core.c:1831
0xc0b537 df_analyze_1
        ../../gcc/df-core.c:1217
0xc0b8d9 df_analyze()
        ../../gcc/df-core.c:1294
0x19bb34b execute_rtl_cprop
        ../../gcc/cprop.c:1875
0x19bb44c execute
        ../../gcc/cprop.c:1914
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with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.
make[3]: *** [Makefile:1085: lto/lto-lang.o] Error 1
make[3]: *** Waiting for unfinished jobs....