[LLVMbugs] [Bug 14653] New: ARM codegen crash - Assertion failed: (VT.isInteger() && Operand.getValueType().isInteger() && "Invalid TRUNCATE!"), function getNode, file

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=14653

             Bug #: 14653
           Summary: ARM codegen crash - Assertion failed: (VT.isInteger()
                    && Operand.getValueType().isInteger() && "Invalid
                    TRUNCATE!"), function getNode, file
           Product: libraries
           Version: trunk
          Platform: PC
        OS/Version: All
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Backend: ARM
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: nrotem at apple.com
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified


Reproduce using the command:
./llvm-stress --size=100 --seed=8086 | ./llc -march=arm -mattr=+v7 > /dev/null

Error:

Assertion failed: (VT.isInteger() && Operand.getValueType().isInteger() &&
"Invalid TRUNCATE!"), function getNode, file
/Users/nadav/devel/src/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp, line
2604.
0  llc               0x00000001010831ce PrintStackTrace(void*) + 46
1  llc               0x0000000101083779 SignalHandler(int) + 297
2  libsystem_c.dylib 0x00007fff864a95da _sigtramp + 26
3  libsystem_c.dylib 0x00007fff5fa70de0 _sigtramp + 18446744073061300256
4  llc               0x000000010108349b raise + 27
5  llc               0x0000000101083552 abort + 18
6  llc               0x0000000101083531 __assert_rtn + 129
7  llc               0x0000000100842781 llvm::SelectionDAG::getNode(unsigned
int, llvm::DebugLoc, llvm::EVT, llvm::SDValue) + 7905
8  llc               0x00000001008bdb06
getCopyFromPartsVector(llvm::SelectionDAG&, llvm::DebugLoc, llvm::SDValue
const*, unsigned int, llvm::MVT, llvm::EVT, llvm::Value const*) + 3638
9  llc               0x00000001008b879b getCopyFromParts(llvm::SelectionDAG&,
llvm::DebugLoc, llvm::SDValue const*, unsigned int, llvm::MVT, llvm::EVT,
llvm::Value const*, llvm::ISD::NodeType) + 155
10 llc               0x000000010089423f (anonymous
namespace)::RegsForValue::getCopyFromRegs(llvm::SelectionDAG&,
llvm::FunctionLoweringInfo&, llvm::DebugLoc, llvm::SDValue&, llvm::SDValue*,
llvm::Value const*) const + 2751
11 llc               0x0000000100892efe
llvm::SelectionDAGBuilder::getValue(llvm::Value const*) + 510
12 llc               0x000000010088be69
llvm::SelectionDAGBuilder::visitStore(llvm::StoreInst const&) + 313
13 llc               0x0000000100888105
llvm::SelectionDAGBuilder::visit(unsigned int, llvm::User const&) + 677
14 llc               0x0000000100887764
llvm::SelectionDAGBuilder::visit(llvm::Instruction const&) + 132
15 llc               0x00000001008e0a4c
llvm::SelectionDAGISel::SelectBasicBlock(llvm::ilist_iterator<llvm::Instruction
const>, llvm::ilist_iterator<llvm::Instruction const>, bool&) + 140
16 llc               0x00000001008e091e
llvm::SelectionDAGISel::SelectAllBasicBlocks(llvm::Function const&) + 3326
17 llc               0x00000001008def3a
llvm::SelectionDAGISel::runOnMachineFunction(llvm::MachineFunction&) + 938
18 llc               0x0000000100aa825e
llvm::MachineFunctionPass::runOnFunction(llvm::Function&) + 110
19 llc               0x0000000100fe8aef
llvm::FPPassManager::runOnFunction(llvm::Function&) + 431
20 llc               0x0000000100fe8dd8
llvm::FPPassManager::runOnModule(llvm::Module&) + 104
21 llc               0x0000000100fe91da
llvm::MPPassManager::runOnModule(llvm::Module&) + 634
22 llc               0x0000000100fe9a3e
llvm::PassManagerImpl::run(llvm::Module&) + 302
23 llc               0x0000000100fe9cd1 llvm::PassManager::run(llvm::Module&) +
33
24 llc               0x000000010018d11b compileModule(char**,
llvm::LLVMContext&) + 5003
25 llc               0x000000010018bd22 main + 226
26 libdyld.dylib     0x00007fff8ce2776d start + 0
27 libdyld.dylib     0x0000000000000003 start + 18446603338152511638
Stack dump:
0.      Program arguments: ./llc -march=arm -mattr=+v7 
1.      Running pass 'Function Pass Manager' on module '<stdin>'.

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