[Bug c/12353] New: ICE in copyprop_hardreg_forward_1

[green at redhat dot com]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12353

           Summary: ICE in copyprop_hardreg_forward_1
           Product: gcc
           Version: 3.4
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: green at redhat dot com
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: i686-pc-linux-gnu
  GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu

I stumbled across this while building a mips-elf-gas with a recent x86 Linux
compiler.  I'll attach the .i file to this bug.

$ gcc -c dwarf2dbg.i -O2
../../src/HEAD-2003-09-21/gas/dwarf2dbg.c: In function `dwarf2_finish':
 
../../src/HEAD-2003-09-21/gas/dwarf2dbg.c:1198: error: insn does not satisfy its
constraints:
(insn 1230 1229 1231 52 (set (strict_low_part (reg:QI 4 sil))
        (eq:QI (reg:CCZ 17 flags)
            (const_int 0 [0x0]))) 363 {setcc_2} (insn_list 1228 (insn_list 1229
(nil)))
    (expr_list:REG_DEAD (reg:CCZ 17 flags)
        (nil)))
../../src/HEAD-2003-09-21/gas/dwarf2dbg.c:1198: internal compiler error: in
copyprop_hardreg_forward_1, at regrename.c:1543
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