search for: opc_emitmergeinputchain

...8, ScalarLoads.Li8, ScalarLoads.Li8, ScalarLoads.Li8, ScalarLoads.Li8)), (v16i8 (VSPLTBs 7, (LXSIBZX xoaddr:$src)))>; But it doesn't match it. The matching fails at an index that corresponds to the following line: OPC_EmitMergeInputChains, 16, 0, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, I don't know what that line means. Can someone help? Thanks. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20160729/953fac0d/attachment.html&g...

...str <0x0, (outs Intregs:$dst) (ins Intregs:$op0,MEMi:$op1), "", [set IntRegs:$dest (adde IntRegs:$op0, (load ADDRi:$op1))] > very unlucky, this instruction failed. in the generated match table, there was flag OPFL_Chain. it caused a token factor node to be created in switch case OPC_EmitMergeInputChains in SelectCodeCommon. very bad, all uses of input chain was replaced with ADDErm Node. so the created token factor node depends on the ADDErm node after the replacement. very bad the ADDCrm node depends on above token factor. because of the glue, a cycle formed. ADDE-->ADDC-->TF-->...