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authorMike Pall <mike>2010-09-03 19:35:44 +0200
committerMike Pall <mike>2010-09-03 19:35:44 +0200
commitb4c8b05ad58364291ff6c210dd4e85bb1b5eb973 (patch)
tree658faf1799735e6af44873c46d1ead093dbe8c2a /src
parent5043efae7d7a5b680127eea1b7f8c1c18360f652 (diff)
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PPC: Add table indexing with variable keys or uint8_t.
Diffstat (limited to 'src')
-rw-r--r--src/buildvm_ppc.dasc136
1 files changed, 132 insertions, 4 deletions
diff --git a/src/buildvm_ppc.dasc b/src/buildvm_ppc.dasc
index 53b72156..647fe387 100644
--- a/src/buildvm_ppc.dasc
+++ b/src/buildvm_ppc.dasc
@@ -1250,7 +1250,43 @@ static void build_ins(BuildCtx *ctx, BCOp op, int defop)
1250 break; 1250 break;
1251 1251
1252 case BC_TGETV: 1252 case BC_TGETV:
1253 | NYI 1253 | // RA = dst*8, RB = table*8, RC = key*8
1254 | evlddx TAB:RB, BASE, RB
1255 | evlddx RC, BASE, RC
1256 | checktab TAB:RB
1257 | checkfail ->vmeta_tgetv
1258 | checknum RC
1259 | checkfail >5
1260 | // Convert number key to integer
1261 | efdctsi TMP2, RC
1262 | lwz TMP0, TAB:RB->asize
1263 | efdcfsi TMP1, TMP2
1264 | cmplw cr0, TMP0, TMP2
1265 | efdcmpeq cr1, RC, TMP1
1266 | lwz TMP1, TAB:RB->array
1267 | crand 4*cr0+gt, 4*cr0+gt, 4*cr1+gt
1268 | slwi TMP2, TMP2, 3
1269 | ble ->vmeta_tgetv // Integer key and in array part?
1270 | evlddx TMP1, TMP1, TMP2
1271 | checknil TMP1
1272 | checkok >2
1273 |1:
1274 | evstddx TMP1, BASE, RA
1275 | ins_next
1276 |
1277 |2: // Check for __index if table value is nil.
1278 | lwz TAB:TMP2, TAB:RB->metatable
1279 | cmpwi TAB:TMP2, 0
1280 | beq <1 // No metatable: done.
1281 | lbz TMP0, TAB:TMP2->nomm
1282 | andi. TMP0, TMP0, 1<<MM_index
1283 | bne <1 // 'no __index' flag set: done.
1284 | b ->vmeta_tgetv
1285 |
1286 |5:
1287 | checkstr STR:RC // String key?
1288 | checkok ->BC_TGETS_Z
1289 | b ->vmeta_tgetv
1254 break; 1290 break;
1255 case BC_TGETS: 1291 case BC_TGETS:
1256 | // RA = dst*8, RB = table*8, RC = str_const*8 (~) 1292 | // RA = dst*8, RB = table*8, RC = str_const*8 (~)
@@ -1299,11 +1335,71 @@ static void build_ins(BuildCtx *ctx, BCOp op, int defop)
1299 | b ->vmeta_tgets 1335 | b ->vmeta_tgets
1300 break; 1336 break;
1301 case BC_TGETB: 1337 case BC_TGETB:
1302 | NYI 1338 | // RA = dst*8, RB = table*8, RC = index*8
1339 | evlddx TAB:RB, BASE, RB
1340 | srwi TMP0, RC, 3
1341 | checktab TAB:RB
1342 | checkfail ->vmeta_tgetb
1343 | lwz TMP1, TAB:RB->asize
1344 | lwz TMP2, TAB:RB->array
1345 | cmplw TMP0, TMP1
1346 | bge ->vmeta_tgetb
1347 | evlddx TMP1, TMP2, RC
1348 | checknil TMP1
1349 | checkok >5
1350 |1:
1351 | evstddx TMP1, BASE, RA
1352 | ins_next
1353 |
1354 |5: // Check for __index if table value is nil.
1355 | lwz TAB:TMP2, TAB:RB->metatable
1356 | cmpwi TAB:TMP2, 0
1357 | beq <1 // No metatable: done.
1358 | lbz TMP2, TAB:TMP2->nomm
1359 | andi. TMP2, TMP2, 1<<MM_index
1360 | bne <1 // 'no __index' flag set: done.
1361 | b ->vmeta_tgetb // Caveat: preserve TMP0!
1303 break; 1362 break;
1304 1363
1305 case BC_TSETV: 1364 case BC_TSETV:
1306 | NYI 1365 | // RA = src*8, RB = table*8, RC = key*8
1366 | evlddx TAB:RB, BASE, RB
1367 | evlddx RC, BASE, RC
1368 | checktab TAB:RB
1369 | checkfail ->vmeta_tsetv
1370 | checknum RC
1371 | checkfail >5
1372 | // Convert number key to integer
1373 | efdctsi TMP2, RC
1374 | evlddx SAVE0, BASE, RA
1375 | lwz TMP0, TAB:RB->asize
1376 | efdcfsi TMP1, TMP2
1377 | cmplw cr0, TMP0, TMP2
1378 | efdcmpeq cr1, RC, TMP1
1379 | lwz TMP1, TAB:RB->array
1380 | crand 4*cr0+gt, 4*cr0+gt, 4*cr1+gt
1381 | slwi TMP2, TMP2, 3
1382 | ble ->vmeta_tsetv // Integer key and in array part?
1383 | evlddx TMP0, TMP1, TMP2
1384 | checknil TMP0
1385 | checkok >2
1386 |1:
1387 | evstddx SAVE0, TMP1, TMP2
1388 | ins_next
1389 |
1390 |2: // Check for __newindex if previous value is nil.
1391 | lwz TAB:TMP3, TAB:RB->metatable
1392 | cmpwi TAB:TMP3, 0
1393 | beq <1 // No metatable: done.
1394 | lbz TMP0, TAB:TMP3->nomm
1395 | andi. TMP0, TMP0, 1<<MM_newindex
1396 | bne <1 // 'no __newindex' flag set: done.
1397 | b ->vmeta_tsetv
1398 |
1399 |5:
1400 | checkstr STR:RC // String key?
1401 | checkok ->BC_TSETS_Z
1402 | b ->vmeta_tsetv
1307 break; 1403 break;
1308 case BC_TSETS: 1404 case BC_TSETS:
1309 | // RA = src*8, RB = table*8, RC = str_const*8 (~) 1405 | // RA = src*8, RB = table*8, RC = str_const*8 (~)
@@ -1382,7 +1478,39 @@ static void build_ins(BuildCtx *ctx, BCOp op, int defop)
1382 | b <3 1478 | b <3
1383 break; 1479 break;
1384 case BC_TSETB: 1480 case BC_TSETB:
1385 | NYI 1481 | // RA = src*8, RB = table*8, RC = index*8
1482 | evlddx TAB:RB, BASE, RB
1483 | srwi TMP0, RC, 3
1484 | checktab TAB:RB
1485 | checkfail ->vmeta_tsetb
1486 | lwz TMP1, TAB:RB->asize
1487 | lwz TMP2, TAB:RB->array
1488 | lbz TMP3, TAB:RB->marked
1489 | cmplw TMP0, TMP1
1490 | evlddx SAVE0, BASE, RA
1491 | bge ->vmeta_tsetb
1492 | evlddx TMP1, TMP2, RC
1493 | checknil TMP1
1494 | checkok >5
1495 |1:
1496 | andi. TMP0, TMP3, LJ_GC_BLACK // isblack(table)
1497 | evstddx SAVE0, TMP2, RC
1498 | bne >7
1499 |2:
1500 | ins_next
1501 |
1502 |5: // Check for __newindex if previous value is nil.
1503 | lwz TAB:TMP1, TAB:RB->metatable
1504 | cmpwi TAB:TMP1, 0
1505 | beq <1 // No metatable: done.
1506 | lbz TMP1, TAB:TMP1->nomm
1507 | andi. TMP1, TMP1, 1<<MM_newindex
1508 | bne <1 // 'no __newindex' flag set: done.
1509 | b ->vmeta_tsetb // Caveat: preserve TMP0!
1510 |
1511 |7: // Possible table write barrier for the value. Skip valiswhite check.
1512 | barrierback TAB:RB, TMP3, TMP0
1513 | b <2
1386 break; 1514 break;
1387 1515
1388 case BC_TSETM: 1516 case BC_TSETM:
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