diff options
| -rw-r--r-- | gcc/expmed.cc | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/gcc/expmed.cc b/gcc/expmed.cc index 3b9475f5aa0..8bbbc94a98c 100644 --- a/gcc/expmed.cc +++ b/gcc/expmed.cc @@ -695,7 +695,13 @@ store_bit_field_using_insv (const extraction_insn *insv, rtx op0, if we must narrow it, be sure we do it correctly. */ if (GET_MODE_SIZE (value_mode) < GET_MODE_SIZE (op_mode)) - tmp = force_subreg (op_mode, value1, value_mode, 0); + { + tmp = simplify_subreg (op_mode, value1, value_mode, 0); + if (! tmp) + tmp = simplify_gen_subreg (op_mode, + force_reg (value_mode, value1), + value_mode, 0); + } else { if (targetm.mode_rep_extended (op_mode, value_mode) != UNKNOWN) |