Ran into this core again on the v1119_0830 build again:

#0  0x00007ffff24694bd in llvm::MachineInstr::addOperand(llvm::MachineOperand const&) () from /opt/home/trafodion/v1119_0830/export/lib64/libtdm_sqlexp.so
#1  0x00007ffff238bea0 in llvm::InstrEmitter::AddRegisterOperand(llvm::MachineInstr*, llvm::SDValue, unsigned int, llvm::MCInstrDesc const*, llvm::DenseMap<llvm::SDValue, unsigned int, llvm::DenseMapInfo<llvm::SDValue> >&, bool, bool, bool) () from /opt/home/trafodion/v1119_0830/export/lib64/libtdm_sqlexp.so
#2  0x00007ffff238c70c in llvm::InstrEmitter::AddOperand(llvm::MachineInstr*, llvm::SDValue, unsigned int, llvm::MCInstrDesc const*, llvm::DenseMap<llvm::SDValue, unsigned int, llvm::DenseMapInfo<llvm::SDValue> >&, bool, bool, bool) ()
   from /opt/home/trafodion/v1119_0830/export/lib64/libtdm_sqlexp.so
#3  0x00007ffff238f9d1 in llvm::InstrEmitter::EmitMachineNode(llvm::SDNode*, bool, bool, llvm::DenseMap<llvm::SDValue, unsigned int, llvm::DenseMapInfo<llvm::SDValue> >&) () from /opt/home/trafodion/v1119_0830/export/lib64/libtdm_sqlexp.so
#4  0x00007ffff23855a3 in llvm::ScheduleDAGSDNodes::EmitSchedule(llvm::MachineBasicBlock::bundle_iterator<llvm::MachineInstr, llvm::ilist_iterator<llvm::MachineInstr> >&) () from /opt/home/trafodion/v1119_0830/export/lib64/libtdm_sqlexp.so
#5  0x00007ffff2300410 in llvm::SelectionDAGISel::CodeGenAndEmitDAG() ()
   from /opt/home/trafodion/v1119_0830/export/lib64/libtdm_sqlexp.so
#6  0x00007ffff2302869 in llvm::SelectionDAGISel::SelectBasicBlock(llvm::ilist_iterator<llvm::Instruction const>, llvm::ilist_iterator<llvm::Instruction const>, bool&) () from /opt/home/trafodion/v1119_0830/export/lib64/libtdm_sqlexp.so
#7  0x00007ffff2302fbe in llvm::SelectionDAGISel::SelectAllBasicBlocks(llvm::Function const&) ()
   from /opt/home/trafodion/v1119_0830/export/lib64/libtdm_sqlexp.so
#8  0x00007ffff2304407 in llvm::SelectionDAGISel::runOnMachineFunction(llvm::MachineFunction&) ()
   from /opt/home/trafodion/v1119_0830/export/lib64/libtdm_sqlexp.so
#9  0x00007ffff289e36d in llvm::FPPassManager::runOnFunction(llvm::Function&)
    () from /opt/home/trafodion/v1119_0830/export/lib64/libtdm_sqlexp.so
#10 0x00007ffff289e51b in llvm::FunctionPassManagerImpl::run(llvm::Function&)
    () from /opt/home/trafodion/v1119_0830/export/lib64/libtdm_sqlexp.so
#11 0x00007ffff289e82c in llvm::FunctionPassManager::run(llvm::Function&) ()
   from /opt/home/trafodion/v1119_0830/export/lib64/libtdm_sqlexp.so
#12 0x00007ffff23dd264 in llvm::JIT::jitTheFunction(llvm::Function*, llvm::MutexGuard const&) ()
   from /opt/home/trafodion/v1119_0830/export/lib64/libtdm_sqlexp.so
#13 0x00007ffff23dd57c in llvm::JIT::runJITOnFunctionUnlocked(llvm::Function*, llvm::MutexGuard const&) ()
   from /opt/home/trafodion/v1119_0830/export/lib64/libtdm_sqlexp.so
#14 0x00007ffff23dd94a in llvm::JIT::runJITOnFunction(llvm::Function*, llvm::MachineCodeInfo*) ()
   from /opt/home/trafodion/v1119_0830/export/lib64/libtdm_sqlexp.so
#15 0x00007ffff20f1380 in PCodeCfg::layoutNativeCode (this=0x7fffd1704d28,
    showplanSpace=0x0) at ../exp/ExpPCodeOptsNativeExpr.cpp:9122
#16 0x00007ffff20b3cc1 in PCodeCfg::optimize (this=0x7fffd1704d28)
    at ../exp/ExpPCodeOptimizations.cpp:2275
#17 0x00007ffff2093965 in ex_expr::pCodeGenerate (this=<value optimized out>,
    space=0x7fffd16fee30, heap=0x7fffcf9fdbb0, f=8)
    at ../exp/ExpPCodeExpGen.cpp:975
#18 0x00007fffee231884 in ExpGenerator::endExprGen (this=0x7fffd16ed8e0,
    expr=0x7fffe4a53180, gen_last_clause=0)
    at ../generator/GenExpGenerator.cpp:4617
#19 0x00007fffee233d93 in ExpGenerator::generateListExpr (this=0x7fffd16ed8e0,
    val_id_list=..., node_type=<value optimized out>, expr=0x7fffe4a53180,
    atp=<value optimized out>, atpIndex=<value optimized out>, hdrInfo=0x0)
    at ../generator/GenExpGenerator.cpp:3687
#20 0x00007fffee23e4ad in ExpGenerator::generateContiguousMoveExpr (
    this=0x7fffd16ed8e0, valIdList=..., addConvNodes=10432, atp=1, atpIndex=2,
    tdataF=ExpTupleDesc::SQLARK_EXPLODED_FORMAT, tupleLength=@0x7fffe4a53280,
    moveExpr=0x7fffe4a53180, tupleDesc=0x0, tdescF=ExpTupleDesc::SHORT_FORMAT,
    newMapTable=0x0, tgtValues=0x0, startOffset=0, bulkMoveSrcStartOffset=0x0,
    disableConstFolding=0, colArray=0x0, doBulkMoves=1)
    at ../generator/GenExpGenerator.cpp:2374
#21 0x00007fffee2cd0e4 in HashJoin::codeGen (this=0x7fffd16cdde8, generator=
    0x7fffe4a546d0) at ../generator/GenRelJoin.cpp:1029
#22 0x00007fffee2d613b in Sort::codeGen (this=0x7fffd16ca340,
    generator=0x7fffe4a546d0) at ../generator/GenRelMisc.cpp:3562
#23 0x00007fffee2db475 in RelRoot::codeGen (this=0x7fffd16b05b0,
    generator=0x7fffe4a546d0) at ../generator/GenRelMisc.cpp:1379
#24 0x00007fffee22604e in Generator::genCode (this=0x7fffe4a546d0,
    source=0x7fffd16486b8 "select O.object_name, C.constraint_type, C.col_count, C.constraint_uid from TRAFODION.\"_MD_\".OBJECTS O, TRAFODION.\"_MD_\".TABLE_CONSTRAINTS C where O.catalog_name = 'TRAFODION' and O.schema_name = 'ALT"...,
    expr_node=0x7fffd16b05b0) at ../generator/Generator.cpp:529
#25 0x00007ffff01b42ea in CmpMain::compile (this=0x7fffe4a57740,
    input_str=0x7fffd16486b8 "select O.object_name, C.constraint_type, C.col_count, C.constraint_uid from TRAFODION.\"_MD_\".OBJECTS O, TRAFODION.\"_MD_\".TABLE_CONSTRAINTS C where O.catalog_name = 'TRAFODION' and O.schema_name = 'ALT"..., charset=15, queryExpr=@0x7fffe4a57678, gen_code=0x7fffcf940558,
    gen_code_len=0x7fffcf940550, heap=0x7fffe35a1930, phase=CmpMain::END,
    fragmentDir=0x7fffe4a57898, op=3004, useQueryCache=<value optimized out>,
    cacheable=0x7fffe4a57688, begTime=0x7fffe4a57660, shouldLog=0)
    at ../sqlcomp/CmpMain.cpp:2293
#26 0x00007ffff01b597c in CmpMain::sqlcomp (this=0x7fffe4a57740,
    input_str=0x7fffd16486b8 "select O.object_name, C.constraint_type, C.col_count, C.constraint_uid from TRAFODION.\"_MD_\".OBJECTS O, TRAFODION.\"_MD_\".TABLE_CONSTRAINTS C where O.catalog_name = 'TRAFODION' and O.schema_name = 'ALT"..., charset=15, queryExpr=@0x7fffe4a57678, gen_code=0x7fffcf940558,
    gen_code_len=0x7fffcf940550, heap=0x7fffe35a1930, phase=CmpMain::END,
    fragmentDir=0x7fffe4a57898, op=3004, useQueryCache=1,
    cacheable=0x7fffe4a57688, begTime=0x7fffe4a57660, shouldLog=0)
    at ../sqlcomp/CmpMain.cpp:1668
#27 0x00007ffff01b6b54 in CmpMain::sqlcomp (this=0x7fffe4a57740, input=...,
    gen_code=0x7fffcf940558, gen_code_len=0x7fffcf940550, heap=0x7fffe35a1930,
    phase=CmpMain::END, fragmentDir=0x7fffe4a57898, op=3004)
    at ../sqlcomp/CmpMain.cpp:807
#28 0x00007fffedfb37f8 in CmpStatement::process (this=0x7fffd19430f8,
    sqltext=<value optimized out>) at ../arkcmp/CmpStatement.cpp:488
#29 0x00007fffedfa81fe in CmpContext::compileDirect (this=0x7fffd1995090,
    data=0x7fffd13faac0 "\200", data_len=432, outHeap=0x7fffe3ffa0f0,
    charset=15, op=CmpMessageObj::SQLTEXT_COMPILE, gen_code=@0x7fffe4a57e20,
    gen_code_len=@0x7fffe4a57e28, parserFlags=4358144, diagsArea=
    0x7fffd13fac78) at ../arkcmp/CmpContext.cpp:687
#30 0x00007ffff49c8137 in CliStatement::prepare2 (this=0x7fffe35c0078,
    source=0x7fffd0fcf2a0 "select O.object_name, C.constraint_type, C.col_count, C.constraint_uid from TRAFODION.\"_MD_\".OBJECTS O, TRAFODION.\"_MD_\".TABLE_CONSTRAINTS C where O.catalog_name = 'TRAFODION' and O.schema_name = 'ALT"...,
    diagsArea=..., passed_gen_code=<value optimized out>,
    passed_gen_code_len=3825180912, charset=15, unpackTdbs=1, cliFlags=144)
    at ../cli/Statement.cpp:1799
#31 0x00007ffff49c8586 in CliStatement::prepare (this=0x7fffe35c0078,
    source=0x7fffd0fcf2a0 "select O.object_name, C.constraint_type, C.col_count, C.constraint_uid from TRAFODION.\"_MD_\".OBJECTS O, TRAFODION.\"_MD_\".TABLE_CONSTRAINTS C where O.catalog_name = 'TRAFODION' and O.schema_name = 'ALT"...,
    diagsArea=..., passed_gen_code=<value optimized out>,
    passed_gen_code_len=<value optimized out>, charset=<value optimized out>,
    unpackTdbs=1, cliFlags=144) at ../cli/Statement.cpp:1390
#32 0x00007ffff4991ee4 in SQLCLI_Prepare2 (cliGlobals=0xf3f510,
    statement_id=0x417e0b0, sql_source=0x417d760, gencode_ptr=0x0,
    gencode_len=0, ret_gencode_len=0x0, query_cost_info=0x7fffe4a591f0,
    query_comp_stats_info=0x7fffe4a580f0, uniqueStmtId=<value optimized out>,
    uniqueStmtIdLen=0x0, flags=0) at ../cli/Cli.cpp:5908
#33 0x00007ffff49d3567 in SQL_EXEC_Prepare2 (statement_id=0x417e0b0,
    sql_source=0x417d760, gencode_ptr=0x0, gencode_len=0, ret_gencode_len=0x0,
    query_cost_info=0x7fffe4a591f0, comp_stats_info=0x7fffe4a580f0,
    uniqueStmtId=0x0, uniqueStmtIdLen=0x0, flags=0)
    at ../cli/CliExtern.cpp:4955
#34 0x00007ffff371100b in ExeCliInterface::prepare (this=0x7fffe4a5abe0,
    stmtStr=<value optimized out>, module=<value optimized out>,
    stmt=0x417e0b0, sql_src=0x417d760, input_desc=0x4464880,
    output_desc=0x425d670, outputBuf=0x7fffe4a5ac18, outputVarPtrList=0x0,
    inputBuf=0x7fffe4a5ac50, inputVarPtrList=0x0, uniqueStmtId=0x0,
    uniqueStmtIdLen=0x0, query_cost_info=0x0, comp_stats_info=0x0,
    monitorThis=0) at ../executor/ExExeUtilCli.cpp:321
#35 0x00007ffff3712a0a in ExeCliInterface::fetchRowsPrologue (
    this=0x7fffe4a5abe0,
    sqlStrBuf=0x7fffe4a59580 "select O.object_name, C.constraint_type, C.col_count, C.constraint_uid from TRAFODION.\"_MD_\".OBJECTS O, TRAFODION.\"_MD_\".TABLE
_CONSTRAINTS C where O.catalog_name = 'TRAFODION' and O.schema_name = 'ALT"..., noExec=0, monitorThis=0, stmtName=0x0) at ../executor/ExExeUtilCli.cpp:1031
#36 0x00007ffff3713ad6 in ExeCliInterface::fetchAllRows (this=0x7fffe4a5abe0,
    infoList=@0x7fffe4a5b008,
    query=0x7fffe4a59580 "select O.object_name, C.constraint_type, C.col_count, C.constraint_uid from TRAFODION.\"_MD_\".OBJECTS O, TRAFODION.\"_MD_\".TABLE_CONSTRAINTS C where O.catalog_name = 'TRAFODION' and O.schema_name = 'ALT"...,
    inNumOutputEntries=0, varcharFormat=0, monitorThis=<value optimized out>,
    initInfoList=1) at ../executor/ExExeUtilCli.cpp:1114
#37 0x00007ffff01fe234 in CmpSeabaseDDL::getSeabaseUserTableDesc (
    this=0x7fffe4a5b1c0, catName=..., schName=..., objName=...,
    objType=<value optimized out>, includeInvalidDefs=<value optimized out>)
    at ../sqlcomp/CmpSeabaseDDLtable.cpp:6285
#38 0x00007ffff0201266 in CmpSeabaseDDL::getSeabaseTableDesc (
    this=0x7fffe4a5b1c0, catName=..., schName=..., objName=...,
    objType=<value optimized out>, includeInvalidDefs=0)
    at ../sqlcomp/CmpSeabaseDDLtable.cpp:6698
#39 0x00007fffeeba1295 in NATableDB::get (this=0x7fffe29f6920, corrName=...,
    bindWA=0x7fffe4a5bf50, inTableDescStruct=0x0)
    at ../optimizer/NATable.cpp:7662
#40 0x00007fffee91145a in BindWA::getNATable (this=0x7fffe4a5bf50,
    corrName=..., catmanCollectTableUsages=1, inTableDescStruct=0x0)
    at ../optimizer/BindRelExpr.cpp:1446
#41 0x00007ffff01e95bc in CmpSeabaseDDL::renameSeabaseTable (
    this=0x7fffe4a5ee30, renameTableNode=0x7fffe4a5c8c0,
    currCatName=<value optimized out>, currSchName=<value optimized out>)
    at ../sqlcomp/CmpSeabaseDDLtable.cpp:2572
#42 0x00007ffff01daade in CmpSeabaseDDL::executeSeabaseDDL (
    this=0x7fffe4a5ee30, ddlExpr=0x7fffd1b5ec48, ddlNode=0x7fffd1b5eae8,
    currCatName=..., currSchName=...)
    at ../sqlcomp/CmpSeabaseDDLcommon.cpp:5696
#43 0x00007fffedfb240a in CmpStatement::process (this=<value optimized out>,
    statement=<value optimized out>) at ../arkcmp/CmpStatement.cpp:911
#44 0x00007fffedfa82d8 in CmpContext::compileDirect (this=0x7fffe29f1090,
    data=0x7fffd180a230 "\200", data_len=232, outHeap=0x7fffe3ffa0f0,
    charset=15, op=CmpMessageObj::PROCESSDDL, gen_code=@0x7fffe4a5f6f0,
    gen_code_len=@0x7fffe4a5f6fc, parserFlags=4194304,
    diagsArea=0x7fffd180a320) at ../arkcmp/CmpContext.cpp:718
#45 0x00007ffff36954f0 in ExDDLTcb::work (this=0x7fffd17fb760)
    at ../executor/ex_ddl.cpp:265
#46 0x00007ffff37613c3 in ExScheduler::work (this=0x7fffd17fb2c8,
    prevWaitTime=<value optimized out>) at ../executor/ExScheduler.cpp:328
#47 0x00007ffff36d3542 in ex_root_tcb::execute (this=0x7fffd17fbd38,
    cliGlobals=0xf3f510, glob=0x7fffd1809bf8, input_desc=0x7fffd0fd8818,
    diagsArea=@0x7fffe4a60e10, reExecute=0) at ../executor/ex_root.cpp:1029
#48 0x00007ffff49c991c in CliStatement::execute (this=0x7fffe35c29b0,
    cliGlobals=0xf3f510, input_desc=0x7fffd0fd8818,
    diagsArea=<value optimized out>, execute_state=<value optimized out>,
    fixupOnly=0, cliflags=0) at ../cli/Statement.cpp:4779
#49 0x00007ffff498c22a in SQLCLI_PerformTasks(CliGlobals *, ULng32, SQLSTMT_ID *, SQLDESC_ID *, SQLDESC_ID *, Lng32, Lng32, typedef __va_list_tag __va_list_tag *, SQLCLI_PTR_PAIRS *, SQLCLI_PTR_PAIRS *) (cliGlobals=0xf3f510, tasks=8063,
    statement_id=0x3b8ee48, input_descriptor=0x3b8ee78, output_descriptor=0x0,
    num_input_ptr_pairs=0, num_output_ptr_pairs=0, ap=0x7fffe4a60fb0,
    input_ptr_pairs=0x0, output_ptr_pairs=0x0) at ../cli/Cli.cpp:3278
#50 0x00007ffff49d4f55 in SQL_EXEC_ClearExecFetchClose (
    statement_id=0x3b8ee48, input_descriptor=0x3b8ee78, output_descriptor=0x0,
    num_input_ptr_pairs=0, num_output_ptr_pairs=0, num_total_ptr_pairs=0)
    at ../cli/CliExtern.cpp:2618
#51 0x00007ffff6e79b0f in SRVR::WSQL_EXEC_ClearExecFetchClose (
    statement_id=0x3b8ee48, input_descriptor=<value optimized out>,
    output_descriptor=<value optimized out>,
    num_input_ptr_pairs=<value optimized out>,
    num_output_ptr_pairs=<value optimized out>,
    num_total_ptr_pairs=<value optimized out>) at SQLWrapper.cpp:459
#52 0x00007ffff6e7044f in SRVR::EXECUTE2 (pSrvrStmt=0x3b8e830)
    at sqlinterface.cpp:5521
#53 0x00007ffff6ea0a45 in odbc_SQLSvc_Execute2_sme_ (
    objtag_=<value optimized out>, call_id_=<value optimized out>,
    dialogueId=<value optimized out>, sqlAsyncEnable=<value optimized out>,
    queryTimeout=<value optimized out>, inputRowCnt=<value optimized out>,
    sqlStmtType=0, stmtHandle=62449712, cursorLength=0, cursorName=0x0,
    cursorCharset=1, holdableCursor=0, inValuesLength=0, inValues=0x0,
    returnCode=0x7fffe4a618a8, sqlWarningOrErrorLength=0x7fffe4a618a4,
    sqlWarningOrError=@0x7fffe4a61880, rowsAffected=0x7fffe4a618a0,
    outValuesLength=0x7fffe4a61894, outValues=@0x7fffe4a61878)
    at srvrothers.cpp:1514
#54 0x00000000004d2685 in odbc_SQLSrvr_ExecDirect_ame_ (objtag_=0x22f6d50,
    call_id_=0x22f6da8, dialogueId=553206359, stmtLabel=<value optimized out>,
    cursorName=0x0, stmtExplainLabel=<value optimized out>, stmtType=0,
    sqlStmtType=0,
    sqlString=0x1c0f754 "alter table tab_loc_emp_original rename to tab_loc_lrg_original", sqlAsyncEnable=0, queryTimeout=0, inputRowCnt=0, txnID=0,
    holdableCursor=0) at SrvrConnect.cpp:7018
#55 0x00000000004a1a36 in SQLEXECUTE_IOMessage (objtag_=0x22f6d50,
    call_id_=0x22f6da8, operation_id=3012) at Interface/odbcs_srvr.cpp:1734
#56 0x00000000004a1ae4 in DISPATCH_TCPIPRequest (objtag_=0x22f6d50,
    call_id_=0x22f6da8, operation_id=<value optimized out>)
    at Interface/odbcs_srvr.cpp:1799
#57 0x0000000000432a02 in BUILD_TCPIP_REQUEST (pnode=0x22f6d50)
    at ../Common/TCPIPSystemSrvr.cpp:603
#58 0x000000000043339d in PROCESS_TCPIP_REQUEST (pnode=0x22f6d50)
    at ../Common/TCPIPSystemSrvr.cpp:581
#59 0x0000000000470ad6 in CNSKListenerSrvr::tcpip_listener (arg=0xde0ee0)
    at Interface/linux/Listener_srvr_ps.cpp:397
#60 0x00007ffff50329f0 in sb_thread_sthr_disp (pp_arg=0xf0b620)
    at threadl.cpp:253
#61 0x00007ffff4bf9851 in start_thread () from /lib64/libpthread.so.0
#62 0x00007ffff533590d in clone () from /lib64/libc.so.6