| /* |
| * Generic one-operand compare-and-branch operation. Provide a "revcmp" |
| * fragment that specifies the *reverse* comparison to perform, e.g. |
| * for "if-le" you would use "gt". |
| * |
| * for: if-eqz, if-nez, if-ltz, if-gez, if-gtz, if-lez |
| */ |
| /* if-cmp vAA, +BBBB */ |
| GET_OPA(a0) # a0 <- AA |
| GET_VREG(a2, a0) # a2 <- vAA |
| FETCH_S(rINST, 1) # rINST <- branch offset, in code units |
| b${revcmp} a2, zero, 1f # branch to 1 if comparison failed |
| b 2f |
| 1: |
| li rINST, 2 # rINST- BYTE branch dist for not-taken |
| 2: |
| #if MTERP_PROFILE_BRANCHES |
| EXPORT_PC() |
| move a0, rSELF |
| addu a1, rFP, OFF_FP_SHADOWFRAME |
| move a2, rINST |
| JAL(MterpProfileBranch) # (self, shadow_frame, offset) |
| bnez v0, MterpOnStackReplacement # Note: offset must be in rINST |
| #endif |
| addu a1, rINST, rINST # convert to bytes |
| FETCH_ADVANCE_INST_RB(a1) # update rPC, load rINST |
| bgez a1, 3f |
| lw ra, THREAD_FLAGS_OFFSET(rSELF) |
| b MterpCheckSuspendAndContinue |
| 3: |
| GET_INST_OPCODE(t0) # extract opcode from rINST |
| GOTO_OPCODE(t0) # jump to next instruction |
