zcmp.S revision a8b91c52fd8a90b784835dfe1f8898035266c4dd 
1%verify "branch taken"
2%verify "branch not taken"
3    /*
4     * Generic one-operand compare-and-branch operation.  Provide a "revcmp"
5     * fragment that specifies the *reverse* comparison to perform, e.g.
6     * for "if-le" you would use "gt".
7     *
8     * for: if-eqz, if-nez, if-ltz, if-gez, if-gtz, if-lez
9     */
10    /* if-cmp vAA, +BBBB */
11    GET_OPA(a0)                            #  a0 <- AA
12    GET_VREG(a2, a0)                       #  a2 <- vAA
13    FETCH_S(a1, 1)                         #  a1 <- branch offset, in code units
14    b${revcmp} a2, zero, 1f                #  branch to 1 if comparison failed
15    b 2f
161:
17    li        a1, 2                        #  a1- BYTE branch dist for not-taken
182:
19    addu      a1, a1, a1                   #  convert to bytes
20    FETCH_ADVANCE_INST_RB(a1)              #  update rPC, load rINST
21#if defined(WITH_JIT)
22    lw        a0, offThread_pJitProfTable(rSELF)
23    bgez      a1, 3f
24    lw        rIBASE, offThread_curHandlerTable(rSELF)  # refresh table base
253:
26    bnez      a0, common_updateProfile     #  test for JIT off at target
27#else
28    bgez      a1, 4f
29    lw        rIBASE, offThread_curHandlerTable(rSELF)  # refresh rtable base
304:
31#endif
32    GET_INST_OPCODE(t0)                    #  extract opcode from rINST
33    GOTO_OPCODE(t0)                        #  jump to next instruction
34