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PPC: Add table indexing with variable keys or uint8_t.

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Mike Pall 2010-09-03 19:35:44 +02:00
parent 5043efae7d
commit b4c8b05ad5
1 changed files with 132 additions and 4 deletions
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136
src/buildvm_ppc.dasc
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@ -1250,7 +1250,43 @@ static void build_ins(BuildCtx *ctx, BCOp op, int defop)
break; break;
case BC_TGETV: case BC_TGETV:
| NYI | // RA = dst*8, RB = table*8, RC = key*8
| evlddx TAB:RB, BASE, RB
| evlddx RC, BASE, RC
| checktab TAB:RB
| checkfail ->vmeta_tgetv
| checknum RC
| checkfail >5
| // Convert number key to integer
| efdctsi TMP2, RC
| lwz TMP0, TAB:RB->asize
| efdcfsi TMP1, TMP2
| cmplw cr0, TMP0, TMP2
| efdcmpeq cr1, RC, TMP1
| lwz TMP1, TAB:RB->array
| crand 4*cr0+gt, 4*cr0+gt, 4*cr1+gt
| slwi TMP2, TMP2, 3
| ble ->vmeta_tgetv // Integer key and in array part?
| evlddx TMP1, TMP1, TMP2
| checknil TMP1
| checkok >2
|1:
| evstddx TMP1, BASE, RA
| ins_next
|
|2: // Check for __index if table value is nil.
| lwz TAB:TMP2, TAB:RB->metatable
| cmpwi TAB:TMP2, 0
| beq <1 // No metatable: done.
| lbz TMP0, TAB:TMP2->nomm
| andi. TMP0, TMP0, 1<<MM_index
| bne <1 // 'no __index' flag set: done.
| b ->vmeta_tgetv
|
|5:
| checkstr STR:RC // String key?
| checkok ->BC_TGETS_Z
| b ->vmeta_tgetv
break; break;
case BC_TGETS: case BC_TGETS:
| // RA = dst*8, RB = table*8, RC = str_const*8 (~) | // RA = dst*8, RB = table*8, RC = str_const*8 (~)
@ -1299,11 +1335,71 @@ static void build_ins(BuildCtx *ctx, BCOp op, int defop)
| b ->vmeta_tgets | b ->vmeta_tgets
break; break;
case BC_TGETB: case BC_TGETB:
| NYI | // RA = dst*8, RB = table*8, RC = index*8
| evlddx TAB:RB, BASE, RB
| srwi TMP0, RC, 3
| checktab TAB:RB
| checkfail ->vmeta_tgetb
| lwz TMP1, TAB:RB->asize
| lwz TMP2, TAB:RB->array
| cmplw TMP0, TMP1
| bge ->vmeta_tgetb
| evlddx TMP1, TMP2, RC
| checknil TMP1
| checkok >5
|1:
| evstddx TMP1, BASE, RA
| ins_next
|
|5: // Check for __index if table value is nil.
| lwz TAB:TMP2, TAB:RB->metatable
| cmpwi TAB:TMP2, 0
| beq <1 // No metatable: done.
| lbz TMP2, TAB:TMP2->nomm
| andi. TMP2, TMP2, 1<<MM_index
| bne <1 // 'no __index' flag set: done.
| b ->vmeta_tgetb // Caveat: preserve TMP0!
break; break;
case BC_TSETV: case BC_TSETV:
| NYI | // RA = src*8, RB = table*8, RC = key*8
| evlddx TAB:RB, BASE, RB
| evlddx RC, BASE, RC
| checktab TAB:RB
| checkfail ->vmeta_tsetv
| checknum RC
| checkfail >5
| // Convert number key to integer
| efdctsi TMP2, RC
| evlddx SAVE0, BASE, RA
| lwz TMP0, TAB:RB->asize
| efdcfsi TMP1, TMP2
| cmplw cr0, TMP0, TMP2
| efdcmpeq cr1, RC, TMP1
| lwz TMP1, TAB:RB->array
| crand 4*cr0+gt, 4*cr0+gt, 4*cr1+gt
| slwi TMP2, TMP2, 3
| ble ->vmeta_tsetv // Integer key and in array part?
| evlddx TMP0, TMP1, TMP2
| checknil TMP0
| checkok >2
|1:
| evstddx SAVE0, TMP1, TMP2
| ins_next
|
|2: // Check for __newindex if previous value is nil.
| lwz TAB:TMP3, TAB:RB->metatable
| cmpwi TAB:TMP3, 0
| beq <1 // No metatable: done.
| lbz TMP0, TAB:TMP3->nomm
| andi. TMP0, TMP0, 1<<MM_newindex
| bne <1 // 'no __newindex' flag set: done.
| b ->vmeta_tsetv
|
|5:
| checkstr STR:RC // String key?
| checkok ->BC_TSETS_Z
| b ->vmeta_tsetv
break; break;
case BC_TSETS: case BC_TSETS:
| // RA = src*8, RB = table*8, RC = str_const*8 (~) | // RA = src*8, RB = table*8, RC = str_const*8 (~)
@ -1382,7 +1478,39 @@ static void build_ins(BuildCtx *ctx, BCOp op, int defop)
| b <3 | b <3
break; break;
case BC_TSETB: case BC_TSETB:
| NYI | // RA = src*8, RB = table*8, RC = index*8
| evlddx TAB:RB, BASE, RB
| srwi TMP0, RC, 3
| checktab TAB:RB
| checkfail ->vmeta_tsetb
| lwz TMP1, TAB:RB->asize
| lwz TMP2, TAB:RB->array
| lbz TMP3, TAB:RB->marked
| cmplw TMP0, TMP1
| evlddx SAVE0, BASE, RA
| bge ->vmeta_tsetb
| evlddx TMP1, TMP2, RC
| checknil TMP1
| checkok >5
|1:
| andi. TMP0, TMP3, LJ_GC_BLACK // isblack(table)
| evstddx SAVE0, TMP2, RC
| bne >7
|2:
| ins_next
|
|5: // Check for __newindex if previous value is nil.
| lwz TAB:TMP1, TAB:RB->metatable
| cmpwi TAB:TMP1, 0
| beq <1 // No metatable: done.
| lbz TMP1, TAB:TMP1->nomm
| andi. TMP1, TMP1, 1<<MM_newindex
| bne <1 // 'no __newindex' flag set: done.
| b ->vmeta_tsetb // Caveat: preserve TMP0!
|
|7: // Possible table write barrier for the value. Skip valiswhite check.
| barrierback TAB:RB, TMP3, TMP0
| b <2
break; break;
case BC_TSETM: case BC_TSETM: