[LLVMbugs] [Bug 10475] New: Assertion `Entry.first.getNode() && "Operand isn't split"' failed.

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=10475

           Summary: Assertion `Entry.first.getNode() && "Operand isn't
                    split"' failed.
           Product: libraries
           Version: trunk
          Platform: PC
        OS/Version: Windows NT
            Status: NEW
          Severity: normal
          Priority: P
         Component: Backend: X86
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: nadav.rotem at intel.com
                CC: llvmbugs at cs.uiuc.edu


llc: LegalizeTypes.cpp:823: void
llvm::DAGTypeLegalizer::GetSplitVector(llvm::SDValue, llvm::SDValue&,
llvm::SDValue&): Assertion `Entry.first.getNode() && "Operand isn't split"'
failed.
0  llc             0x000000000153ff42
1  llc             0x00000000015404d0
2  libpthread.so.0 0x00002aaaaabd4d60
3  libc.so.6       0x00002aaaab274f45 gsignal + 53
4  libc.so.6       0x00002aaaab276340 abort + 272
5  libc.so.6       0x00002aaaab26e486 __assert_fail + 246
6  llc             0x0000000001051632
7  llc             0x0000000001068585
8  llc             0x000000000106e0ce
9  llc             0x0000000001055f13
10 llc             0x000000000105688e llvm::SelectionDAG::LegalizeTypes() + 50
11 llc             0x0000000000ff6b25
llvm::SelectionDAGISel::CodeGenAndEmitDAG() + 1025
12 llc             0x0000000000ff8e02
llvm::SelectionDAGISel::SelectBasicBlock(llvm::ilist_iterator<llvm::Instruction
const>, llvm::ilist_iterator<llvm::Instruction const>, bool&) + 230
13 llc             0x0000000000ff9764
llvm::SelectionDAGISel::SelectAllBasicBlocks(llvm::Function const&) + 2400
14 llc             0x0000000000ff9ce3
llvm::SelectionDAGISel::runOnMachineFunction(llvm::MachineFunction&) + 849
15 llc             0x000000000114490d
llvm::MachineFunctionPass::runOnFunction(llvm::Function&) + 85
16 llc             0x000000000147a237
llvm::FPPassManager::runOnFunction(llvm::Function&) + 371
17 llc             0x000000000147a42f
llvm::FPPassManager::runOnModule(llvm::Module&) + 81
18 llc             0x0000000001479ee3
llvm::MPPassManager::runOnModule(llvm::Module&) + 381
19 llc             0x000000000147b698 llvm::PassManagerImpl::run(llvm::Module&)
+ 116
20 llc             0x000000000147b6fb llvm::PassManager::run(llvm::Module&) +
33
21 llc             0x0000000000ab6424 main + 2410
22 libc.so.6       0x00002aaaab262304 __libc_start_main + 244
23 llc             0x0000000000ab4b69
Stack dump:
0.    Program arguments: llc fail_262380.ll 
1.    Running pass 'Function Pass Manager' on module 'fail_262380.ll'.
2.    Running pass 'X86 DAG->DAG Instruction Selection' on function
'@autogen_262380_1000'
; ModuleID = 'bugpoint-reduced-simplified.bc'
target triple = "x86_64-unknown-linux-gnu"

define void @autogen_262380_1000() {
BB:
  br label %CF79

CF79:                                             ; preds = %CF79, %BB
  br i1 undef, label %CF79, label %CF84.critedge.critedge

CF84.critedge.critedge:                           ; preds = %CF79
  %L35 = load <8 x i32>* undef
  br label %CF85

CF85:                                             ; preds = %CF85,
%CF84.critedge.critedge
  br i1 undef, label %CF85, label %CF86

CF86:                                             ; preds = %CF86, %CF85
  %B61 = sub <8 x i32> %L35, zeroinitializer
  %S64 = icmp ne <8 x i32> %B61, zeroinitializer
  %E73 = extractelement <8 x i1> %S64, i32 6
  br i1 %E73, label %CF86, label %CF87

CF87:                                             ; preds = %CF87, %CF86
  br i1 undef, label %CF87, label %CF88

CF88:                                             ; preds = %CF87
  ret void
}

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