1 /* 2 * Unconditional branch, 16-bit offset. 3 * 4 * The branch distance is a signed code-unit offset, which we need to 5 * double to get a byte offset. 6 */ 7 /* goto/16 +AAAA */ 8 .extern MterpProfileBranch 9 lh rINST, 2(rPC) # rINST <- offset (sign-extended AAAA) 10 #if MTERP_PROFILE_BRANCHES 11 EXPORT_PC 12 move a0, rSELF 13 daddu a1, rFP, OFF_FP_SHADOWFRAME 14 move a2, rINST 15 jal MterpProfileBranch # (self, shadow_frame, offset) 16 bnezc v0, MterpOnStackReplacement # Note: offset must be in rINST 17 #endif 18 dlsa rPC, rINST, rPC, 1 # rPC <- rPC + offset * 2 19 lw ra, THREAD_FLAGS_OFFSET(rSELF) # Preload flags for MterpCheckSuspendAndContinue 20 move a0, rINST # a0 <- offset 21 FETCH_INST # load rINST 22 bltz a0, MterpCheckSuspendAndContinue # suspend check if backwards branch 23 GET_INST_OPCODE v0 # extract opcode from rINST 24 GOTO_OPCODE v0 # jump to next instruction 25
