[Bug target/59363] [4.9 Regression] r203886 miscompiles git

[hjl.tools at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59363

--- Comment #20 from H.J. Lu <hjl.tools at gmail dot com> ---
expand_setmem_epilogue in i386,c has

     if (TARGET_64BIT)
        {
          dest = change_address (destmem, DImode, destptr);
          emit_insn (gen_strset (destptr, dest, value));
          emit_insn (gen_strset (destptr, dest, value));
        }
      else  
        {
          dest = change_address (destmem, SImode, destptr);
          emit_insn (gen_strset (destptr, dest, value));
          emit_insn (gen_strset (destptr, dest, value));
          emit_insn (gen_strset (destptr, dest, value));
          emit_insn (gen_strset (destptr, dest, value));
        }
...

          dest = change_address (destmem, SImode, destptr);
          emit_insn (gen_strset (destptr, dest, value));
          emit_insn (gen_strset (destptr, dest, value));

The second gen_strset doesnt have the correct address.