[LLVMbugs] [Bug 20434] New: unsigned int llvm::CCValAssign::getLocMemOffset() const: Assertion `isMemLoc()' failed.

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=20434

            Bug ID: 20434
           Summary: unsigned int llvm::CCValAssign::getLocMemOffset()
                    const: Assertion `isMemLoc()' failed.
           Product: clang
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: -New Bugs
          Assignee: unassignedclangbugs at nondot.org
          Reporter: ismail at donmez.ws
                CC: david.majnemer at gmail.com, llvmbugs at cs.uiuc.edu
    Classification: Unclassified

I was playing around with llc and 

[/havana/obs/clang/llvm-clang-head/llvm]> llc -mtriple=x86_64-pc-windows-msvc
test/CodeGen/X86/musttail-indirect.ll
llc: ../include/llvm/CodeGen/CallingConvLower.h:141: unsigned int
llvm::CCValAssign::getLocMemOffset() const: Assertion `isMemLoc()' failed.
0  libLLVMSupport.so      0x00007f96de221385
llvm::sys::PrintStackTrace(_IO_FILE*) + 37
1  libLLVMSupport.so      0x00007f96de221b83
2  libc.so.6              0x00007f96dd69a8d0
3  libc.so.6              0x00007f96dd69a849 gsignal + 57
4  libc.so.6              0x00007f96dd69bcd8 abort + 328
5  libc.so.6              0x00007f96dd693616
6  libc.so.6              0x00007f96dd6936c2
7  libLLVMX86CodeGen.so   0x00007f96e0a64b87
llvm::X86TargetLowering::LowerCall(llvm::TargetLowering::CallLoweringInfo&,
llvm::SmallVectorImpl<llvm::SDValue>&) const + 11063
8  libLLVMSelectionDAG.so 0x00007f96de5cb65e
llvm::TargetLowering::LowerCallTo(llvm::TargetLowering::CallLoweringInfo&)
const + 3918
9  libLLVMSelectionDAG.so 0x00007f96de5b6a67
llvm::SelectionDAGBuilder::LowerCallTo(llvm::ImmutableCallSite, llvm::SDValue,
bool, llvm::MachineBasicBlock*) + 1527
10 libLLVMSelectionDAG.so 0x00007f96de5a7ae2
llvm::SelectionDAGBuilder::visitCall(llvm::CallInst const&) + 1362
11 libLLVMSelectionDAG.so 0x00007f96de5a0386
llvm::SelectionDAGBuilder::visit(llvm::Instruction const&) + 70
12 libLLVMSelectionDAG.so 0x00007f96de5e56f8
llvm::SelectionDAGISel::SelectBasicBlock(llvm::ilist_iterator<llvm::Instruction
const>, llvm::ilist_iterator<llvm::Instruction const>, bool&) + 40
13 libLLVMSelectionDAG.so 0x00007f96de5e4cc8
llvm::SelectionDAGISel::SelectAllBasicBlocks(llvm::Function const&) + 8184
14 libLLVMSelectionDAG.so 0x00007f96de5e1dd6
llvm::SelectionDAGISel::runOnMachineFunction(llvm::MachineFunction&) + 1366
15 libLLVMX86CodeGen.so   0x00007f96e0a498a6
16 libLLVMCodeGen.so      0x00007f96df5e72ec
llvm::MachineFunctionPass::runOnFunction(llvm::Function&) + 124
17 libLLVMCore.so         0x00007f96df1d8d9b
llvm::FPPassManager::runOnFunction(llvm::Function&) + 539
18 libLLVMCore.so         0x00007f96df1d900b
llvm::FPPassManager::runOnModule(llvm::Module&) + 43
19 libLLVMCore.so         0x00007f96df1d9536
llvm::legacy::PassManagerImpl::run(llvm::Module&) + 886
20 llc                    0x000000000040fc7b main + 6587
21 libc.so.6              0x00007f96dd686be5 __libc_start_main + 245
22 llc                    0x000000000040d3e9
Stack dump:
0.    Program arguments: llc -o - -mtriple=x86_64-pc-windows-msvc
test/CodeGen/X86/musttail-indirect.ll 
1.    Running pass 'Function Pass Manager' on module
'test/CodeGen/X86/musttail-indirect.ll'.
2.    Running pass 'X86 DAG->DAG Instruction Selection' on function '@g_thunk'
[1]    16861 abort      llc -o - -mtriple=x86_64-pc-windows-msvc
test/CodeGen/X86/musttail-indirect.l

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