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| author | Geoffrey Keating <geoffk@redhat.com> | 2001-02-13 02:44:54 +0000 |
|---|---|---|
| committer | Geoffrey Keating <geoffk@gcc.gnu.org> | 2001-02-13 02:44:54 +0000 |
| commit | 9a155f914c56ddbe1589f73ebb99e4c6a025c402 (patch) | |
| tree | bbc1debd81e88103da7935b300ec252b81bbdd91 /gcc/config | |
| parent | c4880c993684baf5720f3a63912e736c848d278f (diff) | |
| download | gcc-9a155f914c56ddbe1589f73ebb99e4c6a025c402.zip gcc-9a155f914c56ddbe1589f73ebb99e4c6a025c402.tar.gz gcc-9a155f914c56ddbe1589f73ebb99e4c6a025c402.tar.bz2 | |
sysv4.h (MASK_NO_BITFIELD_WORD): New macro.
* config/rs6000/sysv4.h (MASK_NO_BITFIELD_WORD): New macro.
(TARGET_NO_BITFIELD_WORD): New macro.
(SUBTARGET_SWITCHES): Add -mbit-word, -mno-bit-word options.
(BITFIELD_NBYTES_LIMITED): Define based on TARGET_NO_BITFIELD_WORD.
From-SVN: r39613
Diffstat (limited to 'gcc/config')
| -rw-r--r-- | gcc/config/rs6000/sysv4.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/gcc/config/rs6000/sysv4.h b/gcc/config/rs6000/sysv4.h index db77530..5f1f950 100644 --- a/gcc/config/rs6000/sysv4.h +++ b/gcc/config/rs6000/sysv4.h @@ -57,6 +57,7 @@ extern enum rs6000_sdata_type rs6000_sdata; #define MASK_REGNAMES 0x02000000 /* Use alternate register names. */ #define MASK_PROTOTYPE 0x01000000 /* Only prototyped fcns pass variable args. */ #define MASK_LONG_DOUBLE_128 0x00800000 /* Use IEEE quad long double. */ +#define MASK_NO_BITFIELD_WORD 0x00400000 /* Bitfields cannot cross word boundaries */ #define TARGET_NO_BITFIELD_TYPE (target_flags & MASK_NO_BITFIELD_TYPE) #define TARGET_STRICT_ALIGN (target_flags & MASK_STRICT_ALIGN) @@ -66,6 +67,7 @@ extern enum rs6000_sdata_type rs6000_sdata; #define TARGET_REGNAMES (target_flags & MASK_REGNAMES) #define TARGET_PROTOTYPE (target_flags & MASK_PROTOTYPE) #define TARGET_LONG_DOUBLE_128 (target_flags & MASK_LONG_DOUBLE_128) +#define TARGET_NO_BITFIELD_WORD (target_flags & MASK_NO_BITFIELD_WORD) #define TARGET_TOC ((target_flags & MASK_64BIT) \ || ((target_flags & (MASK_RELOCATABLE \ | MASK_MINIMAL_TOC)) \ @@ -136,6 +138,9 @@ extern int g_switch_set; /* Whether -G xx was passed. */ { "no-traceback", 0, N_("no description yet") }, \ { "eabi", MASK_EABI, N_("Use EABI.") }, \ { "no-eabi", -MASK_EABI, N_("Don't use EABI.") }, \ + { "bit-word", -MASK_NO_BITFIELD_WORD, "" }, \ + { "no-bit-word", MASK_NO_BITFIELD_WORD, \ + N_("Do not allow bitfields to cross word boundaries") }, \ { "regnames", MASK_REGNAMES, \ N_("Use alternate register names.") }, \ { "no-regnames", -MASK_REGNAMES, \ @@ -380,6 +385,9 @@ do { \ #undef PCC_BITFIELD_TYPE_MATTERS #define PCC_BITFIELD_TYPE_MATTERS (TARGET_BITFIELD_TYPE) +#undef BITFIELD_NBYTES_LIMITED +#define BITFIELD_NBYTES_LIMITED (TARGET_NO_BITFIELD_WORD) + /* Define this macro to be the value 1 if instructions will fail to work if given data not on the nominal alignment. If instructions will merely go slower in that case, define this macro as 0. */ |