1 %default { "compare":"1" } 2 /* 3 * Generic one-operand compare-and-branch operation. Provide a "condition" 4 * fragment that specifies the comparison to perform. 5 * 6 * for: if-eqz, if-nez, if-ltz, if-gez, if-gtz, if-lez 7 */ 8 /* if-cmp vAA, +BBBB */ 9 lsr w0, wINST, #8 // w0<- AA 10 GET_VREG w2, w0 // w2<- vAA 11 FETCH_S wINST, 1 // w1<- branch offset, in code units 12 .if ${compare} 13 cmp w2, #0 // compare (vA, 0) 14 .endif 15 ${branch} MterpCommonTakenBranchNoFlags 16 cmp wPROFILE, #JIT_CHECK_OSR // possible OSR re-entry? 17 b.eq .L_check_not_taken_osr 18 FETCH_ADVANCE_INST 2 19 GET_INST_OPCODE ip // extract opcode from wINST 20 GOTO_OPCODE ip // jump to next instruction 21
