| /* |
| * Unconditional branch, 8-bit offset. |
| * |
| * The branch distance is a signed code-unit offset, which we need to |
| * double to get a byte offset. |
| */ |
| /* goto +AA */ |
| /* tuning: use sbfx for 6t2+ targets */ |
| #if MTERP_SUSPEND |
| mov w0, wINST, lsl #16 // w0<- AAxx0000 |
| movs w1, w0, asr #24 // w1<- ssssssAA (sign-extended) |
| add w2, w1, w1 // w2<- byte offset, set flags |
| // If backwards branch refresh rIBASE |
| ldrmi rIBASE, [xSELF, #THREAD_CURRENT_IBASE_OFFSET] // refresh handler base |
| FETCH_ADVANCE_INST_RB w2 // update rPC, load wINST |
| GET_INST_OPCODE ip // extract opcode from wINST |
| GOTO_OPCODE ip // jump to next instruction |
| #else |
| lsl w0, wINST, #16 // w0<- AAxx0000 |
| asr wINST, w0, #24 // wINST<- ssssssAA (sign-extended) |
| #if MTERP_PROFILE_BRANCHES |
| mov x0, xSELF |
| add x1, xFP, #OFF_FP_SHADOWFRAME |
| sbfm x2, xINST, 0, 31 |
| bl MterpProfileBranch // (self, shadow_frame, offset) |
| cbnz w0, MterpOnStackReplacement // Note: offset must be in wINST |
| #endif |
| ldr w7, [xSELF, #THREAD_FLAGS_OFFSET] // Preload flags for MterpCheckSuspendAndContinue |
| adds w1, wINST, wINST // Convert dalvik offset to byte offset, setting flags |
| FETCH_ADVANCE_INST_RB w1 // load wINST and advance xPC |
| // If backwards branch refresh rIBASE |
| b.mi MterpCheckSuspendAndContinue |
| GET_INST_OPCODE ip // extract opcode from wINST |
| GOTO_OPCODE ip // jump to next instruction |
| #endif |
