[Bug target/60851] New: ICE: in extract_constrain_insn_cached, at recog.c:2117 with -flive-range-shrinkage -mdispatch-scheduler -march=bdver4

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

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60851

            Bug ID: 60851
           Summary: ICE: in extract_constrain_insn_cached, at recog.c:2117
                    with -flive-range-shrinkage -mdispatch-scheduler
                    -march=bdver4
           Product: gcc
           Version: 4.10.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: zsojka at seznam dot cz

Created attachment 32607
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=32607&action=edit
reduced testcase

Compiler output:
$ gcc -flive-range-shrinkage -mdispatch-scheduler -march=bdver4 testcase.c   
testcase.c: In function 'ld':
testcase.c:4:1: error: insn does not satisfy its constraints:
 }
 ^
(insn 8 7 11 2 (set (reg:XF 83 [ D.2396 ])
        (float:XF (reg:HI 86))) testcase.c:3 196 {floathixf2}
     (expr_list:REG_DEAD (reg:HI 86)
        (nil)))
testcase.c:4:1: internal compiler error: in extract_constrain_insn_cached, at
recog.c:2117
0xac43d8 _fatal_insn(char const*, rtx_def const*, char const*, int, char
const*)
        /mnt/svn/gcc-trunk/gcc/rtl-error.c:109
0xac4444 _fatal_insn_not_found(rtx_def const*, char const*, int, char const*)
        /mnt/svn/gcc-trunk/gcc/rtl-error.c:120
0xa7de2d extract_constrain_insn_cached(rtx_def*)
        /mnt/svn/gcc-trunk/gcc/recog.c:2117
0xe32591 get_attr_length_address(rtx_def*)
        /mnt/svn/gcc-trunk/gcc/config/i386/i386.md:468
0xe41061 insn_default_length(rtx_def*)
        /mnt/svn/gcc-trunk/gcc/config/i386/i386.md:671
0xde8e30 min_insn_size
        /mnt/svn/gcc-trunk/gcc/config/i386/i386.c:38907
0xdea229 add_to_dispatch_window
        /mnt/svn/gcc-trunk/gcc/config/i386/i386.c:46006
0xdea229 do_dispatch
        /mnt/svn/gcc-trunk/gcc/config/i386/i386.c:46172
0x135c72e schedule_block(basic_block_def**, void*)
        /mnt/svn/gcc-trunk/gcc/haifa-sched.c:6261
0xae057a schedule_region
        /mnt/svn/gcc-trunk/gcc/sched-rgn.c:3079
0xae057a schedule_insns
        /mnt/svn/gcc-trunk/gcc/sched-rgn.c:3416
0xae097b schedule_insns
        /mnt/svn/gcc-trunk/gcc/sched-rgn.c:3401
0xae097b rest_of_handle_live_range_shrinkage
        /mnt/svn/gcc-trunk/gcc/sched-rgn.c:3614
0xae097b execute
        /mnt/svn/gcc-trunk/gcc/sched-rgn.c:3704
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-209399-lto-fortran-checking-yes-rtl-df/libexec/gcc/x86_64-unknown-linux-gnu/4.10.0/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-209399-lto-fortran-checking-yes-rtl-df/
--without-cloog --without-ppl
Thread model: posix
gcc version 4.10.0 20140415 (experimental) (GCC)