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| author | Eric Botcazou <ebotcazou@adacore.com> | 2012-03-27 10:35:55 +0000 |
|---|---|---|
| committer | Eric Botcazou <ebotcazou@gcc.gnu.org> | 2012-03-27 10:35:55 +0000 |
| commit | a59b038cc8edf2e34d5c9544a8805bf9b3450709 (patch) | |
| tree | afcd36162228e58e77087033fa077738a70aad88 /gcc/expmed.c | |
| parent | d102ab714fbf00fbbf8b0c2e022a315b85c5e22a (diff) | |
| download | gcc-a59b038cc8edf2e34d5c9544a8805bf9b3450709.zip gcc-a59b038cc8edf2e34d5c9544a8805bf9b3450709.tar.gz gcc-a59b038cc8edf2e34d5c9544a8805bf9b3450709.tar.bz2 | |
expmed.c (store_bit_field): Assert that BITREGION_START is a multiple of a unit before computing the offset...
* expmed.c (store_bit_field): Assert that BITREGION_START is a multiple
of a unit before computing the offset in units.
* expr.c (get_bit_range): Return the null range if the enclosing record
is part of a larger bit field.
From-SVN: r185857
Diffstat (limited to 'gcc/expmed.c')
| -rw-r--r-- | gcc/expmed.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/gcc/expmed.c b/gcc/expmed.c index 5134b738..54e51dc 100644 --- a/gcc/expmed.c +++ b/gcc/expmed.c @@ -828,8 +828,7 @@ store_bit_field (rtx str_rtx, unsigned HOST_WIDE_INT bitsize, /* Under the C++0x memory model, we must not touch bits outside the bit region. Adjust the address to start at the beginning of the bit region. */ - if (MEM_P (str_rtx) - && bitregion_start > 0) + if (MEM_P (str_rtx) && bitregion_start > 0) { enum machine_mode bestmode; enum machine_mode op_mode; @@ -839,6 +838,8 @@ store_bit_field (rtx str_rtx, unsigned HOST_WIDE_INT bitsize, if (op_mode == MAX_MACHINE_MODE) op_mode = VOIDmode; + gcc_assert ((bitregion_start % BITS_PER_UNIT) == 0); + offset = bitregion_start / BITS_PER_UNIT; bitnum -= bitregion_start; bitregion_end -= bitregion_start; |