| %def op_packed_switch(func="MterpDoPackedSwitch"): | |
| /* | |
| * Handle a packed-switch or sparse-switch instruction. In both cases | |
| * we decode it and hand it off to a helper function. | |
| * | |
| * We don't really expect backward branches in a switch statement, but | |
| * they're perfectly legal, so we check for them here. | |
| * | |
| * for: packed-switch, sparse-switch | |
| */ | |
| /* op vAA, +BBBB */ | |
| FETCH r0, 1 @ r0<- bbbb (lo) | |
| FETCH r1, 2 @ r1<- BBBB (hi) | |
| mov r3, rINST, lsr #8 @ r3<- AA | |
| orr r0, r0, r1, lsl #16 @ r0<- BBBBbbbb | |
| GET_VREG r1, r3 @ r1<- vAA | |
| add r0, rPC, r0, lsl #1 @ r0<- PC + BBBBbbbb*2 | |
| bl $func @ r0<- code-unit branch offset | |
| movs rINST, r0 | |
| b MterpCommonTakenBranch |