[Bug lto/50617] New: [4.7 Regression] ICE: RTL flag check: INSN_ANNULLED_BRANCH_P used with unexpected rtx code 'simplify_immed_subreg' in output_bb, at config/pa/pa.c:6631

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

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50617

             Bug #: 50617
           Summary: [4.7 Regression] ICE: RTL flag check:
                    INSN_ANNULLED_BRANCH_P used with unexpected rtx code
                    'simplify_immed_subreg' in output_bb, at
                    config/pa/pa.c:6631
    Classification: Unclassified
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: lto
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: danglin@gcc.gnu.org
              Host: hppa64-hp-hpux11.00
            Target: hppa64-hp-hpux11.00
             Build: hppa64-hp-hpux11.00


Executing on host: /home/gnu/gcc/objdir/gcc/xgcc -B/home/gnu/gcc/objdir/gcc/
-O2 -flto -flto-partition=none  -w -c  -o 20000105-1.o
/xxx/gnu/gcc/gcc/gcc/test
suite/gcc.c-torture/compile/20000105-1.c    (timeout = 300)
/xxx/gnu/gcc/gcc/gcc/testsuite/gcc.c-torture/compile/20000105-1.c: In function
'
main':
/xxx/gnu/gcc/gcc/gcc/testsuite/gcc.c-torture/compile/20000105-1.c:25:1:
internal
 compiler error: RTL flag check: INSN_ANNULLED_BRANCH_P used with unexpected
rtx
 code 'simplify_immed_subreg' in output_bb, at config/pa/pa.c:6631

Seems to occur with -flto.  The rtx code is wierd...

-bash-3.2$ ./xgcc -B./ -v
Reading specs from ./specs
COLLECT_GCC=./xgcc
COLLECT_LTO_WRAPPER=./lto-wrapper
Target: hppa64-hp-hpux11.00
Configured with: ../gcc/configure --with-gnu-as --with-as=/opt/gnu64/bin/as
--with-ld=/usr/ccs/bin/ld --enable-shared --with-local-prefix=/opt/gnu64
--prefix=/opt/gnu64/gcc/gcc-4.7 --build=hppa64-hp-hpux11.00 --disable-nls
--disable-build-poststage1-with-cxx --with-gmp=/opt/gnu64/gcc/gmp
--enable-languages=c,c++,fortran,objc,obj-c++
Thread model: posix
gcc version 4.7.0 20110928 (experimental) [trunk revision 179321] (GCC)