https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79098

            Bug ID: 79098
           Summary: [7 Regression] Failure to bootstrap gcc for
                    powerpc-e500v2-linux-gnuspe target
           Product: gcc
           Version: 7.0
            Status: UNCONFIRMED
          Keywords: build
          Severity: normal
          Priority: P3
         Component: bootstrap
          Assignee: unassigned at gcc dot gnu.org
          Reporter: asolokha at gmx dot com
  Target Milestone: ---
            Target: powerpc-e500v2-linux-gnuspe

When building gcc-7.0.0-20170115 snapshot for powerpc-e500v2-linux-gnuspe I now
get the following:

x86_64-pc-linux-gnu-g++ -fno-PIE -c   -O2 -pipe -g -fPIC -DIN_GCC 
-DCROSS_DIRECTORY_STRUCTURE   -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 -fno-common 
-DHAVE_CONFIG_H -I. -I.
-I/var/tmp/portage/cross-powerpc-e500v2-linux-gnuspe/gcc-7.0.0_alpha20170115/work/gcc-7-20170115/gcc
-I/var/tmp/portage/cross-powerpc-e500v2-linux-gnuspe/gcc-7.0.0_alpha20170115/work/gcc-7-20170115/gcc/.
-I/var/tmp/portage/cross-powerpc-e500v2-linux-gnuspe/gcc-7.0.0_alpha20170115/work/gcc-7-20170115/gcc/../include
-I/var/tmp/portage/cross-powerpc-e500v2-linux-gnuspe/gcc-7.0.0_alpha20170115/work/gcc-7-20170115/gcc/../libcpp/include

-I/var/tmp/portage/cross-powerpc-e500v2-linux-gnuspe/gcc-7.0.0_alpha20170115/work/gcc-7-20170115/gcc/../libdecnumber
-I/var/tmp/portage/cross-powerpc-e500v2-linux-gnuspe/gcc-7.0.0_alpha20170115/work/gcc-7-20170115/gcc/../libdecnumber/dpd
-I../libdecnumber
-I/var/tmp/portage/cross-powerpc-e500v2-linux-gnuspe/gcc-7.0.0_alpha20170115/work/gcc-7-20170115/gcc/../libbacktrace
  -o rs6000.o -MT rs6000.o -MMD -MP -MF ./.deps/rs6000.TPo
/var/tmp/portage/cross-powerpc-e500v2-linux-gnuspe/gcc-7.0.0_alpha20170115/work/gcc-7-20170115/gcc/config/rs6000/rs6000.c
/var/tmp/portage/cross-powerpc-e500v2-linux-gnuspe/gcc-7.0.0_alpha20170115/work/gcc-7-20170115/gcc/config/rs6000/rs6000.c:
In function  bool rs6000_legitimate_combined_insn(rtx_insn*)':
/var/tmp/portage/cross-powerpc-e500v2-linux-gnuspe/gcc-7.0.0_alpha20170115/work/gcc-7-20170115/gcc/config/rs6000/rs6000.c:9115:5:
error: duplicate case value
     case CODE_FOR_ctrdi_internal2:
     ^
/var/tmp/portage/cross-powerpc-e500v2-linux-gnuspe/gcc-7.0.0_alpha20170115/work/gcc-7-20170115/gcc/config/rs6000/rs6000.c:9113:5:
error: previously used here
     case CODE_FOR_ctrdi_internal1:
     ^
/var/tmp/portage/cross-powerpc-e500v2-linux-gnuspe/gcc-7.0.0_alpha20170115/work/gcc-7-20170115/gcc/config/rs6000/rs6000.c:9117:5:
error: duplicate case value
     case CODE_FOR_ctrdi_internal3:
     ^
/var/tmp/portage/cross-powerpc-e500v2-linux-gnuspe/gcc-7.0.0_alpha20170115/work/gcc-7-20170115/gcc/config/rs6000/rs6000.c:9113:5:
error: previously used here
     case CODE_FOR_ctrdi_internal1:
     ^
/var/tmp/portage/cross-powerpc-e500v2-linux-gnuspe/gcc-7.0.0_alpha20170115/work/gcc-7-20170115/gcc/config/rs6000/rs6000.c:9119:5:
error: duplicate case value
     case CODE_FOR_ctrdi_internal4:
     ^
/var/tmp/portage/cross-powerpc-e500v2-linux-gnuspe/gcc-7.0.0_alpha20170115/work/gcc-7-20170115/gcc/config/rs6000/rs6000.c:9113:5:
error: previously used here
     case CODE_FOR_ctrdi_internal1:
     ^
make[2]: *** [Makefile:2222: rs6000.o] Error 1

It is likely caused by r244465. gcc for powerpc-e300c3-linux-gnu builds fine,
though.

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