| Douglas Leung | 200f040 | 2016-02-25 20:05:47 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Check to see if an object reference is an instance of a class. |
| 3 | * |
| 4 | * Most common situation is a non-null object, being compared against |
| 5 | * an already-resolved class. |
| 6 | */ |
| Alexey Frunze | 84603bf | 2016-10-21 19:54:43 -0700 | [diff] [blame] | 7 | /* instance-of vA, vB, class@CCCC */ |
| Douglas Leung | 200f040 | 2016-02-25 20:05:47 -0800 | [diff] [blame] | 8 | EXPORT_PC() |
| 9 | FETCH(a0, 1) # a0 <- CCCC |
| 10 | GET_OPB(a1) # a1 <- B |
| 11 | EAS2(a1, rFP, a1) # a1 <- &object |
| 12 | lw a2, OFF_FP_METHOD(rFP) # a2 <- method |
| 13 | move a3, rSELF # a3 <- self |
| 14 | GET_OPA4(rOBJ) # rOBJ <- A+ |
| 15 | JAL(MterpInstanceOf) # v0 <- Mterp(index, &obj, method, self) |
| 16 | lw a1, THREAD_EXCEPTION_OFFSET(rSELF) |
| 17 | PREFETCH_INST(2) # load rINST |
| 18 | bnez a1, MterpException |
| 19 | ADVANCE(2) # advance rPC |
| 20 | GET_INST_OPCODE(t0) # extract opcode from rINST |
| 21 | SET_VREG_GOTO(v0, rOBJ, t0) # vA <- v0 |