[Bug target/60541] New: [4.9 Regression] ICE: in final_scan_insn, at final.c:2952: could not split insn with -march=barcelona

["zsojka at seznam dot cz" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60541

            Bug ID: 60541
           Summary: [4.9 Regression] ICE: in final_scan_insn, at
                    final.c:2952: could not split insn with
                    -march=barcelona
           Product: gcc
           Version: 4.9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: zsojka at seznam dot cz

Created attachment 32360
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=32360&action=edit
reduced testcase

Compiler output:
$ gcc -march=barcelona testcase.c            
testcase.c: In function 'foo':
testcase.c:4:1: error: could not split insn
 }
 ^
(insn 7 4 8 2 (parallel [
            (set (reg:DF 21 xmm0 [orig:83 D.1796 ] [83])
                (float:DF (mem/c:DI (plus:DI (reg/f:DI 6 bp)
                            (const_int -8 [0xfffffffffffffff8])) [0 a+0 S8
A64])))
            (clobber (mem/c:DI (plus:DI (reg/f:DI 6 bp)
                        (const_int -24 [0xffffffffffffffe8])) [0  S8 A64]))
        ]) testcase.c:3 219 {*floatdidf2_sse_with_temp}
     (nil))
testcase.c:4:1: internal compiler error: in final_scan_insn, at final.c:2952
0xac1248 _fatal_insn(char const*, rtx_def const*, char const*, int, char
const*)
        /mnt/svn/gcc-trunk/gcc/rtl-error.c:109
0x871bf4 final_scan_insn(rtx_def*, _IO_FILE*, int, int, int*)
        /mnt/svn/gcc-trunk/gcc/final.c:2952
0x872a9d final(rtx_def*, _IO_FILE*, int)
        /mnt/svn/gcc-trunk/gcc/final.c:2023
0x872fae rest_of_handle_final
        /mnt/svn/gcc-trunk/gcc/final.c:4427
0x872fae execute
        /mnt/svn/gcc-trunk/gcc/final.c:4502
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.


$ gcc -v                         
Using built-in specs.
COLLECT_GCC=/mnt/svn/gcc-trunk/binary-latest/bin/gcc
COLLECT_LTO_WRAPPER=/mnt/svn/gcc-trunk/binary-208561-lto-fortran-checking-yes-rtl-df/libexec/gcc/x86_64-unknown-linux-gnu/4.9.0/lto-wrapper
Target: x86_64-unknown-linux-gnu
Configured with: /mnt/svn/gcc-trunk//configure --enable-checking=yes,rtl,df
--enable-languages=c,c++,lto,fortran
--prefix=/mnt/svn/gcc-trunk/binary-208561-lto-fortran-checking-yes-rtl-df/
--without-cloog --without-ppl
Thread model: posix
gcc version 4.9.0 20140314 (experimental) (GCC)