http://llvm.org/bugs/show_bug.cgi?id=15083
Bug #: 15083
Summary: StructType for dispatch_object_t changed by Linker
Product: new-bugs
Version: 3.2
Platform: Macintosh
OS/Version: MacOS X
Status: NEW
Severity: enhancement
Priority: P
Component: new bugs
AssignedTo: [email protected]
ReportedBy: [email protected]
CC: [email protected]
Classification: Unclassified
The problem happens when a program does these steps (all with the global
LLVMContext):
1. Loads a module (otherModule) that uses `dispatch_object_t`.
2. Generates code that calls `dispatch_release`, which takes a
`dispatch_object_t` argument, into a module (mainModule).
3. Links otherModule into mainModule.
4. Generates more code that calls `dispatch_release`.
In Step 4, the following failure occurs on the `CallInst::Create` call for
`dispatch_release`:
Assertion failed: ((i >= FTy->getNumParams() || FTy->getParamType(i) ==
Args[i]->getType()) && "Calling a function with a bad signature!"), function
init, file Instructions.cpp, line 274.
For more information, including sample code, see
http://lists.cs.uiuc.edu/pipermail/llvmdev/2012-December/057075.html and
replies.
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