| %default { "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 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 | |
| add x0, xPC, x0, lsl #1 // x0<- PC + ssssssssBBBBbbbb*2 | |
| bl $func // w0<- code-unit branch offset | |
| sxtw xINST, w0 | |
| b MterpCommonTakenBranchNoFlags |