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| author | Roman Zippel <zippel@linux-m68k.org> | 2001-08-31 22:54:19 +0000 |
|---|---|---|
| committer | Richard Henderson <rth@gcc.gnu.org> | 2001-08-31 15:54:19 -0700 |
| commit | 57bfa49ae1ca6b049392285801bb1438e38a911a (patch) | |
| tree | 880c6af2091fa66bdabd679d60dc406fd0219dec /gcc | |
| parent | 4504a6554658e2b23a73856e99c50bc70ca6a324 (diff) | |
| download | gcc-57bfa49ae1ca6b049392285801bb1438e38a911a.zip gcc-57bfa49ae1ca6b049392285801bb1438e38a911a.tar.gz gcc-57bfa49ae1ca6b049392285801bb1438e38a911a.tar.bz2 | |
expmed.c (store_bit_field): Update to patch from 2001-08-27: move adjustment of bitpos instead.
* expmed.c (store_bit_field): Update to patch from 2001-08-27:
move adjustment of bitpos instead.
From-SVN: r45338
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/expmed.c | 18 |
2 files changed, 14 insertions, 9 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 77be0dc..e03aa81 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2001-08-30 Roman Zippel <zippel@linux-m68k.org> + + * expmed.c (store_bit_field): Update to patch from 2001-08-27: + move adjustment of bitpos instead. + 2001-08-31 Zack Weinberg <zack@codesourcery.com> * function.c: Remove all_functions. Make outer_function_chain diff --git a/gcc/expmed.c b/gcc/expmed.c index af5e56f..8bc66b2 100644 --- a/gcc/expmed.c +++ b/gcc/expmed.c @@ -330,14 +330,6 @@ store_bit_field (str_rtx, bitsize, bitnum, fieldmode, value, align, total_size) op0 = SUBREG_REG (op0); } - /* If OP0 is a register, BITPOS must count within a word. - But as we have it, it counts within whatever size OP0 now has. - On a bigendian machine, these are not the same, so convert. */ - if (BYTES_BIG_ENDIAN - && GET_CODE (op0) != MEM - && unit > GET_MODE_BITSIZE (GET_MODE (op0))) - bitpos += unit - GET_MODE_BITSIZE (GET_MODE (op0)); - value = protect_from_queue (value, 0); if (flag_force_mem) @@ -350,7 +342,7 @@ store_bit_field (str_rtx, bitsize, bitnum, fieldmode, value, align, total_size) done with a simple store. For targets that support fast unaligned memory, any naturally sized, unit aligned field can be done directly. */ - if (bitnum == 0 + if (bitpos == 0 && bitsize == GET_MODE_BITSIZE (fieldmode) && (GET_CODE (op0) != MEM ? (GET_MODE_SIZE (fieldmode) >= UNITS_PER_WORD @@ -401,6 +393,14 @@ store_bit_field (str_rtx, bitsize, bitnum, fieldmode, value, align, total_size) } } + /* If OP0 is a register, BITPOS must count within a word. + But as we have it, it counts within whatever size OP0 now has. + On a bigendian machine, these are not the same, so convert. */ + if (BYTES_BIG_ENDIAN + && GET_CODE (op0) != MEM + && unit > GET_MODE_BITSIZE (GET_MODE (op0))) + bitpos += unit - GET_MODE_BITSIZE (GET_MODE (op0)); + /* Storing an lsb-aligned field in a register can be done with a movestrict instruction. */ |