%def op_aget(load="ldr", shift="2", data_offset="MIRROR_INT_ARRAY_DATA_OFFSET", wide="0", is_object="0"):
/*
* Array get. vAA <- vBB[vCC].
*
* for: aget, aget-boolean, aget-byte, aget-char, aget-short, aget-wide, aget-object
*
*/
FETCH_B w2, 1, 0 // w2<- BB
lsr w9, wINST, #8 // w9<- AA
FETCH_B w3, 1, 1 // w3<- CC
GET_VREG w0, w2 // w0<- vBB (array object)
GET_VREG w1, w3 // w1<- vCC (requested index)
cbz x0, common_errNullObject // bail if null array object.
ldr w3, [x0, #MIRROR_ARRAY_LENGTH_OFFSET] // w3<- arrayObj->length
add x0, x0, w1, uxtw #$shift // w0<- arrayObj + index*width
cmp w1, w3 // compare unsigned index, length
bcs common_errArrayIndex // index >= length, bail
FETCH_ADVANCE_INST 2 // advance rPC, load rINST
GET_INST_OPCODE x10 // extract opcode from wINST
.if $wide
ldr x2, [x0, #$data_offset] // x2<- vBB[vCC]
SET_VREG_WIDE x2, w9
GOTO_OPCODE x10 // jump to next instruction
.elseif $is_object
$load w2, [x0, #$data_offset] // w2<- vBB[vCC]
TEST_IF_MARKING 2f
1:
SET_VREG_OBJECT w2, w9 // vAA<- w2
GOTO_OPCODE x10 // jump to next instruction
2:
bl art_quick_read_barrier_mark_reg02
b 1b
.else
$load w2, [x0, #$data_offset] // w2<- vBB[vCC]
SET_VREG w2, w9 // vAA<- w2
GOTO_OPCODE x10 // jump to next instruction
.endif
%def op_aget_boolean():
% op_aget(load="ldrb", shift="0", data_offset="MIRROR_BOOLEAN_ARRAY_DATA_OFFSET", is_object="0")
%def op_aget_byte():
% op_aget(load="ldrsb", shift="0", data_offset="MIRROR_BYTE_ARRAY_DATA_OFFSET", is_object="0")
%def op_aget_char():
% op_aget(load="ldrh", shift="1", data_offset="MIRROR_CHAR_ARRAY_DATA_OFFSET", is_object="0")
%def op_aget_object():
% op_aget(load="ldr", shift="2", data_offset="MIRROR_OBJECT_ARRAY_DATA_OFFSET", is_object="1")
%def op_aget_short():
% op_aget(load="ldrsh", shift="1", data_offset="MIRROR_SHORT_ARRAY_DATA_OFFSET", is_object="0")
%def op_aget_wide():
% op_aget(load="ldr", shift="3", data_offset="MIRROR_WIDE_ARRAY_DATA_OFFSET", wide="1", is_object="0")
%def op_aput(store="str", shift="2", data_offset="MIRROR_INT_ARRAY_DATA_OFFSET", wide="0", is_object="0"):
/*
* Array put. vBB[vCC] <- vAA.
*
* for: aput, aput-boolean, aput-byte, aput-char, aput-short, aput-wide, aput-object
*
*/
FETCH_B w2, 1, 0 // w2<- BB
lsr w9, wINST, #8 // w9<- AA
FETCH_B w3, 1, 1 // w3<- CC
GET_VREG w0, w2 // w0<- vBB (array object)
GET_VREG w1, w3 // w1<- vCC (requested index)
cbz w0, common_errNullObject // bail if null
ldr w3, [x0, #MIRROR_ARRAY_LENGTH_OFFSET] // w3<- arrayObj->length
.if !$is_object
add x0, x0, w1, uxtw #$shift // w0<- arrayObj + index*width
.endif
cmp w1, w3 // compare unsigned index, length
bcs common_errArrayIndex // index >= length, bail
.if $is_object
EXPORT_PC // Export PC before overwriting it.
.endif
FETCH_ADVANCE_INST 2 // advance rPC, load rINST
.if $wide
GET_VREG_WIDE x2, w9 // x2<- vAA
.else
GET_VREG w2, w9 // w2<- vAA
.endif
.if $wide
$store x2, [x0, #$data_offset] // vBB[vCC]<- x2
.elseif $is_object
bl art_quick_aput_obj
.else
$store w2, [x0, #$data_offset] // vBB[vCC]<- w2
.endif
GET_INST_OPCODE ip // extract opcode from rINST
GOTO_OPCODE ip // jump to next instruction
%def op_aput_boolean():
% op_aput(store="strb", shift="0", data_offset="MIRROR_BOOLEAN_ARRAY_DATA_OFFSET", wide="0", is_object="0")
%def op_aput_byte():
% op_aput(store="strb", shift="0", data_offset="MIRROR_BYTE_ARRAY_DATA_OFFSET", wide="0", is_object="0")
%def op_aput_char():
% op_aput(store="strh", shift="1", data_offset="MIRROR_CHAR_ARRAY_DATA_OFFSET", wide="0", is_object="0")
%def op_aput_short():
% op_aput(store="strh", shift="1", data_offset="MIRROR_SHORT_ARRAY_DATA_OFFSET", wide="0", is_object="0")
%def op_aput_wide():
% op_aput(store="str", shift="3", data_offset="MIRROR_WIDE_ARRAY_DATA_OFFSET", wide="1", is_object="0")
%def op_aput_object():
% op_aput(store="str", shift="2", data_offset="MIRROR_INT_ARRAY_DATA_OFFSET", wide="0", is_object="1")
%def op_array_length():
/*
* Return the length of an array.
*/
lsr w1, wINST, #12 // w1<- B
ubfx w2, wINST, #8, #4 // w2<- A
GET_VREG w0, w1 // w0<- vB (object ref)
cbz w0, common_errNullObject // bail if null
FETCH_ADVANCE_INST 1 // advance rPC, load rINST
ldr w3, [x0, #MIRROR_ARRAY_LENGTH_OFFSET] // w3<- array length
GET_INST_OPCODE ip // extract opcode from rINST
SET_VREG w3, w2 // vB<- length
GOTO_OPCODE ip // jump to next instruction
%def op_fill_array_data():
/* fill-array-data vAA, +BBBBBBBB */
EXPORT_PC
FETCH w0, 1 // x0<- 000000000000bbbb (lo)
FETCH_S x1, 2 // x1<- ssssssssssssBBBB (hi)
lsr w3, wINST, #8 // w3<- AA
orr x0, x0, x1, lsl #16 // x0<- ssssssssBBBBbbbb
GET_VREG w1, w3 // w1<- vAA (array object)
add x0, xPC, x0, lsl #1 // x0<- PC + ssssssssBBBBbbbb*2 (array data off.)
bl art_quick_handle_fill_data
FETCH_ADVANCE_INST 3 // advance rPC, load rINST
GET_INST_OPCODE ip // extract opcode from rINST
GOTO_OPCODE ip // jump to next instruction
%def op_filled_new_array(helper="nterp_filled_new_array"):
/*
* Create a new array with elements filled from registers.
*
* for: filled-new-array, filled-new-array/range
*/
/* op vB, {vD, vE, vF, vG, vA}, class@CCCC */
/* op {vCCCC..v(CCCC+AA-1)}, type@BBBB */
EXPORT_PC
mov x0, xSELF
ldr x1, [sp]
mov x2, xFP
mov x3, xPC
bl $helper
FETCH_ADVANCE_INST 3 // advance rPC, load rINST
GET_INST_OPCODE ip // extract opcode from rINST
GOTO_OPCODE ip // jump to next instruction
%def op_filled_new_array_range():
% op_filled_new_array(helper="nterp_filled_new_array_range")
%def op_new_array():
/* new-array vA, vB, class@CCCC */
EXPORT_PC
// Fast-path which gets the class from thread-local cache.
% fetch_from_thread_cache("x0", miss_label="2f")
TEST_IF_MARKING 3f
1:
lsr w1, wINST, #12 // w1<- B
GET_VREG w1, w1 // w1<- vB (array length)
ldr lr, [xSELF, #THREAD_ALLOC_ARRAY_ENTRYPOINT_OFFSET]
blr lr
ubfx w1, wINST, #8, #4 // w1<- A
SET_VREG_OBJECT w0, w1
FETCH_ADVANCE_INST 2
GET_INST_OPCODE ip
GOTO_OPCODE ip
2:
mov x0, xSELF
ldr x1, [sp, 0]
mov x2, xPC
bl nterp_get_class_or_allocate_object
b 1b
3:
bl art_quick_read_barrier_mark_reg00
b 1b