diff options
Diffstat (limited to 'include/opcode/cgen.h')
| -rw-r--r-- | include/opcode/cgen.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/include/opcode/cgen.h b/include/opcode/cgen.h index bcde472..e603b55 100644 --- a/include/opcode/cgen.h +++ b/include/opcode/cgen.h @@ -609,6 +609,23 @@ enum cgen_operand_type { CGEN_OPERAND_MAX }; /* "nil" indicator for the operand instance table */ #define CGEN_OPERAND_NIL CGEN_OPERAND_MAX +/* A tree of these structs represents the multi-ifield + structure of an operand's hw-index value, if it exists. */ + +struct cgen_ifld; + +typedef struct cgen_maybe_multi_ifield +{ + int count; /* 0: indexed by single cgen_ifld (possibly null: dead entry); + n: indexed by array of more cgen_maybe_multi_ifields. */ + union + { + struct cgen_maybe_multi_ifield * multi; + struct cgen_ifld * leaf; + } val; +} +CGEN_MAYBE_MULTI_IFLD; + /* This struct defines each entry in the operand table. */ typedef struct @@ -637,6 +654,11 @@ typedef struct May be unused for a modifier. */ unsigned char length; + /* The (possibly-multi) ifield used as an index for this operand, if it + is indexed by a field at all. This substitutes / extends the start and + length fields above, but unsure at this time whether they are used + anywhere. */ + CGEN_MAYBE_MULTI_IFLD index_fields; #if 0 /* ??? Interesting idea but relocs tend to get too complicated, and ABI dependent, for simple table lookups to work. */ /* Ideally this would be the internal (external?) reloc type. */ |