[Bug target/31388] New: ICE building libiberty multilib for mips16 multilibs

[nickc at redhat dot com]

I recently ran across an ICE building a target libiberty for one of
the multilibs of the mips64vrel-elf toolchain:

     .../libiberty/regex.c: In function 'byte_re_match_2_internal':
     .../libiberty/regex.c:7481: error: insn does not satisfy its constraints:
    (insn 5211 1697 1699 173 .../libiberty/regex.c:6589
    (set (reg:SI 5 $5)
         (lo_sum:SI (reg/f:SI 1104)
                    (symbol_ref:SI ("byte_reg_unset_dummy") [flags 0x6]
<var_decl 0x2a9860bc60 byte_reg_unset_dummy>))) 204 {*lowsi_mips16} (nil)
         (expr_list:REG_EQUAL (symbol_ref:SI ("byte_reg_unset_dummy") [flags
0x6] <var_decl 0x2a9860bc60 byte_reg_unset_dummy>)
         (nil)))
     .../libiberty/regex.c:7481: internal compiler error: in
reload_cse_simplify_operands, at postreload.c:393
     Please submit a full bug report,
     with preprocessed source if appropriate.
     See <URL:http://gcc.gnu.org/bugs.html> for instructions.
     make[3]: *** [regex.o] Error 1
     make[3]: Leaving directory
.../mips64vrel-elf/mips64vrel-elf/mips16/libiberty'


-- 
           Summary: ICE building libiberty multilib for mips16 multilibs
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: nickc at redhat dot com
  GCC host triplet: x86_64-pc-linux-gnulibc2.3
GCC target triplet: mips64vrel-elf


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31388