[LLVMbugs] [Bug 7761] New: llc gives me "LLVM ERROR: Invalid primitive type"

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=7761

           Summary: llc gives me "LLVM ERROR: Invalid primitive type"
           Product: tools
           Version: 2.7
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: llc
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: jingl1345 at gmail.com
                CC: llvmbugs at cs.uiuc.edu


I have:
int main()
{
    int i = 1;
}
in test.c.

Then:
llvm-gcc -emit-llvm -O0 -c test.c -o test.bc -g
llc -march=cpp test.bc
gives me:
LLVM ERROR: Invalid primitive type
This only happens when I use the "-g".

Duncan Sands reported the following in the maillist:
Yes, it is a bug.  In fact LLVM from subversion from a few days ago
crashes even without -march=cpp:

$ llc test.bc
llc: llvm/include/llvm/Support/Casting.h:202: typename llvm::cast_retty<To, 
From>::ret_type llvm::cast(const Y&) [with X = llvm::MDNode, Y = llvm::Value*]: 
Assertion `isa<X>(Val) && "cast<Ty>() argument of incompatible type!"' failed.

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