[LLVMdev] How to detect all free() calls

[Jane]

Hi,
    I'm trying to write a pass to detect all free()/delete() call instructions in LLVM IR.The method is as follows.
    First I find Call Instructions: CallInst *CI=dyn_cast<CallInst>(&*i);
    then see if the Function name matches:
                        name=CI->getCalledFunction()->getName(); if(name=="_ZdlPv"||name=="_ZdaPv"||name=="free")
    It worked but when  something like this occurs
    %call2 = call i32 bitcast (i32 (...)* @free to i32 (i8*)*)(i8* %call1) nounwind, !dbg !16
    It seems like a indirect function call and I don't know how to detect free() in such situation.
    By the way, is there any way that is more convenient to detect all free()/delete() call instructions in a module except by matching the function name?
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