toolchain/gcc/patches/4.3.1/400-arm_register_fix.patch

   1 Fixes GCC PR36350
   2
   3 --- a/gcc/regrename.c
   4 +++ b/gcc/regrename.c
   5 @@ -783,6 +783,10 @@ build_def_use (basic_block bb)
   6                 recog_data.operand_type[i] = OP_INOUT;
   7             }
   8
   9 +         /* Unshare dup_loc RTL */
  10 +         for (i = 0; i < recog_data.n_dups; i++)
  11 +           *recog_data.dup_loc[i] = copy_rtx(*recog_data.dup_loc[i]);
  12 +
  13           /* Step 1: Close chains for which we have overlapping reads.  */
  14           for (i = 0; i < n_ops; i++)
  15             scan_rtx (insn, recog_data.operand_loc[i],
  16 @@ -813,7 +817,7 @@ build_def_use (basic_block bb)
  17                     OP_IN, 0);
  18
  19           for (i = 0; i < recog_data.n_dups; i++)
  20 -           *recog_data.dup_loc[i] = copy_rtx (old_dups[i]);
  21 +           *recog_data.dup_loc[i] = old_dups[i];
  22           for (i = 0; i < n_ops; i++)
  23             *recog_data.operand_loc[i] = old_operands[i];
  24           if (recog_data.n_dups)