[Bug bootstrap/59731] New: [4.9 regression] RTL check: expected code 'set' or 'clobber', have 'parallel' in combine_reaching_defs, at ree.c:711

[dimhen at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59731

            Bug ID: 59731
           Summary: [4.9 regression] RTL check: expected code 'set' or
                    'clobber', have 'parallel' in combine_reaching_defs,
                    at ree.c:711
           Product: gcc
           Version: 4.9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: bootstrap
          Assignee: unassigned at gcc dot gnu.org
          Reporter: dimhen at gmail dot com

r206443 FAIL
r206356 PASS
Fedora 20 / x86_64

configured as:
~/src/gcc_current/configure --prefix=/usr/local/gcc_current
--enable-checking=yes,df,fold,rtl,tree --enable-languages=c,c++,lto
--enable-plugin --with-tune=native --with-arch=native
--enable-version-specific-runtime-libs --enable-static --enable-multilib
--with-system-zlib

/home/dimhen/src/gcc_current/libgcc/config/libbid/bid_binarydecimal.c: In
function '__bid64_to_binary32':
/home/dimhen/src/gcc_current/libgcc/config/libbid/bid_binarydecimal.c:144172:1:
internal compiler error: RTL check: expected code 'set' or 'clobber', have
'parallel' in combine_reaching_defs, at ree.c:711
 }
 ^
0xc7a8cd rtl_check_failed_code2(rtx_def const*, rtx_code, rtx_code, char
const*, int, char const*)
    /home/dimhen/src/gcc_current/gcc/rtl.c:783
0x1ea1a6d combine_reaching_defs
    /home/dimhen/src/gcc_current/gcc/ree.c:711
0x1ea387e find_and_remove_re
    /home/dimhen/src/gcc_current/gcc/ree.c:957
0x1ea419c rest_of_handle_ree
    /home/dimhen/src/gcc_current/gcc/ree.c:1019
0x1ea422a execute
    /home/dimhen/src/gcc_current/gcc/ree.c:1058
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.