[LLVMbugs] [Bug 5414] New: Assertion `!isNull() && "Invalid descriptor!"' failed

[bugzilla-daemon at cs.uiuc.edu]

http://llvm.org/bugs/show_bug.cgi?id=5414

           Summary: Assertion `!isNull() && "Invalid descriptor!"' failed
           Product: new-bugs
           Version: unspecified
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: new bugs
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: baldrick at free.fr
                CC: dpatel at apple.com, llvmbugs at cs.uiuc.edu


Created an attachment (id=3779)
 --> (http://llvm.org/bugs/attachment.cgi?id=3779)
testcase .ll

I'm getting this debug info assertion failure when trying to built the
llvm-gcc Ada front-end.  This is a recent regression.

$ llc invalid_descriptor.bc 
llc: llvm/lib/Analysis/DebugInfo.cpp:141: bool
llvm::DIDescriptor::isDerivedType() const: Assertion `!isNull() && "Invalid
descriptor!"' failed.
...
4  libc.so.6 0xf74ed648 __assert_fail + 248
5  llc       0x08a2aa2e llvm::DIDescriptor::isDerivedType() const + 114
6  llc       0x08a2b6a0 llvm::DIDerivedType::getOriginalTypeSize() const + 102
7  llc       0x08a2b6cc llvm::DIDerivedType::getOriginalTypeSize() const + 146


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