1a8b91c52fd8a90b784835dfe1f8898035266c4ddRaghu Gandham%verify "branch taken" 2a8b91c52fd8a90b784835dfe1f8898035266c4ddRaghu Gandham%verify "branch not taken" 3a8b91c52fd8a90b784835dfe1f8898035266c4ddRaghu Gandham /* 4a8b91c52fd8a90b784835dfe1f8898035266c4ddRaghu Gandham * Generic one-operand compare-and-branch operation. Provide a "revcmp" 5a8b91c52fd8a90b784835dfe1f8898035266c4ddRaghu Gandham * fragment that specifies the *reverse* comparison to perform, e.g. 6a8b91c52fd8a90b784835dfe1f8898035266c4ddRaghu Gandham * for "if-le" you would use "gt". 7a8b91c52fd8a90b784835dfe1f8898035266c4ddRaghu Gandham * 8a8b91c52fd8a90b784835dfe1f8898035266c4ddRaghu Gandham * for: if-eqz, if-nez, if-ltz, if-gez, if-gtz, if-lez 9a8b91c52fd8a90b784835dfe1f8898035266c4ddRaghu Gandham */ 10a8b91c52fd8a90b784835dfe1f8898035266c4ddRaghu Gandham /* if-cmp vAA, +BBBB */ 11a8b91c52fd8a90b784835dfe1f8898035266c4ddRaghu Gandham GET_OPA(a0) # a0 <- AA 12a8b91c52fd8a90b784835dfe1f8898035266c4ddRaghu Gandham GET_VREG(a2, a0) # a2 <- vAA 13a8b91c52fd8a90b784835dfe1f8898035266c4ddRaghu Gandham FETCH_S(a1, 1) # a1 <- branch offset, in code units 14a8b91c52fd8a90b784835dfe1f8898035266c4ddRaghu Gandham b${revcmp} a2, zero, 1f # branch to 1 if comparison failed 15a8b91c52fd8a90b784835dfe1f8898035266c4ddRaghu Gandham b 2f 16a8b91c52fd8a90b784835dfe1f8898035266c4ddRaghu Gandham1: 17a8b91c52fd8a90b784835dfe1f8898035266c4ddRaghu Gandham li a1, 2 # a1- BYTE branch dist for not-taken 18a8b91c52fd8a90b784835dfe1f8898035266c4ddRaghu Gandham2: 19a8b91c52fd8a90b784835dfe1f8898035266c4ddRaghu Gandham addu a1, a1, a1 # convert to bytes 20a8b91c52fd8a90b784835dfe1f8898035266c4ddRaghu Gandham FETCH_ADVANCE_INST_RB(a1) # update rPC, load rINST 21a8b91c52fd8a90b784835dfe1f8898035266c4ddRaghu Gandham#if defined(WITH_JIT) 22a8b91c52fd8a90b784835dfe1f8898035266c4ddRaghu Gandham lw a0, offThread_pJitProfTable(rSELF) 23a8b91c52fd8a90b784835dfe1f8898035266c4ddRaghu Gandham bgez a1, 3f 24a8b91c52fd8a90b784835dfe1f8898035266c4ddRaghu Gandham lw rIBASE, offThread_curHandlerTable(rSELF) # refresh table base 25a8b91c52fd8a90b784835dfe1f8898035266c4ddRaghu Gandham3: 26a8b91c52fd8a90b784835dfe1f8898035266c4ddRaghu Gandham bnez a0, common_updateProfile # test for JIT off at target 27a8b91c52fd8a90b784835dfe1f8898035266c4ddRaghu Gandham#else 28a8b91c52fd8a90b784835dfe1f8898035266c4ddRaghu Gandham bgez a1, 4f 29a8b91c52fd8a90b784835dfe1f8898035266c4ddRaghu Gandham lw rIBASE, offThread_curHandlerTable(rSELF) # refresh rtable base 30a8b91c52fd8a90b784835dfe1f8898035266c4ddRaghu Gandham4: 31a8b91c52fd8a90b784835dfe1f8898035266c4ddRaghu Gandham#endif 32a8b91c52fd8a90b784835dfe1f8898035266c4ddRaghu Gandham GET_INST_OPCODE(t0) # extract opcode from rINST 33a8b91c52fd8a90b784835dfe1f8898035266c4ddRaghu Gandham GOTO_OPCODE(t0) # jump to next instruction 34