%verify "executed" /* * Array get, 64 bits. vAA <- vBB[vCC]. * * Arrays of long/double are 64-bit aligned, so it's okay to use LDRD. */ /* aget-wide vAA, vBB, vCC */ FETCH(r0, 1) @ r0<- CCBB mov r9, rINST, lsr #8 @ r9<- AA and r2, r0, #255 @ r2<- BB mov r3, r0, lsr #8 @ r3<- CC GET_VREG(r0, r2) @ r0<- vBB (array object) GET_VREG(r1, r3) @ r1<- vCC (requested index) cmp r0, #0 @ null array object? beq common_errNullObject @ yes, bail ldr r3, [r0, #offArrayObject_length] @ r3<- arrayObj->length add r0, r0, r1, lsl #3 @ r0<- arrayObj + index*width cmp r1, r3 @ compare unsigned index, length bcc .L${opcode}_finish @ okay, continue below b common_errArrayIndex @ index >= length, bail @ May want to swap the order of these two branches depending on how the @ branch prediction (if any) handles conditional forward branches vs. @ unconditional forward branches. %break .L${opcode}_finish: FETCH_ADVANCE_INST(2) @ advance rPC, load rINST ldrd r2, [r0, #offArrayObject_contents] @ r2/r3<- vBB[vCC] add r9, rFP, r9, lsl #2 @ r9<- &fp[AA] GET_INST_OPCODE(ip) @ extract opcode from rINST stmia r9, {r2-r3} @ vAA/vAA+1<- r2/r3 GOTO_OPCODE(ip) @ jump to next instruction