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FFI: Record cdata indexing with integer cdata.

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This commit is contained in:
Mike Pall 2011-01-26 21:14:58 +01:00
parent de0781d610
commit 2526498c71
1 changed files with 13 additions and 0 deletions
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13
src/lj_crecord.c
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@ -481,12 +481,25 @@ void LJ_FASTCALL recff_cdata_index(jit_State *J, RecordFFData *rd)
if (tref_isnum(idx))
idx = emitconv(idx, IRT_INT, IRT_NUM, IRCONV_TRUNC|IRCONV_ANY);
#endif
integer_key:
if (ctype_ispointer(ct->info)) {
CTSize sz = lj_ctype_size(cts, (sid = ctype_cid(ct->info)));
idx = crec_reassoc_ofs(J, idx, &ofs, sz);
idx = emitir(IRT(IR_MUL, IRT_INTP), idx, lj_ir_kintp(J, sz));
ptr = emitir(IRT(IR_ADD, IRT_PTR), idx, ptr);
}
} else if (tref_iscdata(idx)) {
GCcdata *cdk = cdataV(&rd->argv[1]);
CType *ctk = ctype_raw(cts, cdk->typeid);
IRType t;
if (ctype_isenum(ctk->info)) ctk = ctype_child(cts, ctk);
if (ctype_isinteger(ctk->info) && (t = crec_ct2irt(ctk)) != IRT_CDATA) {
idx = emitir(IRT(IR_ADD, IRT_PTR), idx, lj_ir_kintp(J, sizeof(GCcdata)));
idx = emitir(IRT(IR_XLOAD, t), idx, 0);
if (!LJ_64 && (t == IRT_I64 || t == IRT_U64))
idx = emitconv(idx, IRT_INT, t, 0);
goto integer_key;
}
} else if (tref_isstr(idx)) {
GCstr *name = strV(&rd->argv[1]);
/* Always specialize to the field name. */