diff options
Diffstat (limited to 'gcc/expmed.c')
| -rw-r--r-- | gcc/expmed.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/gcc/expmed.c b/gcc/expmed.c index be27f855ae8..a5939423034 100644 --- a/gcc/expmed.c +++ b/gcc/expmed.c @@ -928,7 +928,9 @@ extract_bit_field (str_rtx, bitsize, bitnum, unsignedp, So too extracting a subword value in the least significant part of the register. */ - if ((GET_CODE (op0) == REG + if (((GET_CODE (op0) == REG + && TRULY_NOOP_TRUNCATION (GET_MODE_BITSIZE (mode), + GET_MODE_BITSIZE (GET_MODE (op0)))) || (GET_CODE (op0) == MEM && (! SLOW_UNALIGNED_ACCESS || (offset * BITS_PER_UNIT % bitsize == 0 |