llvm dev - Oct 2013 - [LLVMdev] Getting TargetData and TargetLibraryInfo for determining Malloc size

Hello;

I was trying to use the computeArraySize() function from the
MemoryBuiltins.cpp file.  It requires two arguments DataLayout *TD and
const TargetLibraryInfo *TLI.  Can anyone tell me how to get the
TargetLibraryInfo?  I am getting the DataLayout using:

DataLayout *TD;
TD = new DataLayout(&M);

I hope that's the right way of getting it.

Thanks a lot;
-- 
Arnamoy Bhattacharyya
Athabasca Hall 143
Department of Computing Science - University of Alberta
Edmonton, Alberta, Canada, T6G 2E8
587-710-7073

> From: llvmdev-bounces at cs.uiuc.edu [mailto:llvmdev-bounces at
cs.uiuc.edu]
> On Behalf Of Arnamoy Bhattacharyya
> Subject: [LLVMdev] Getting TargetData and TargetLibraryInfo for determining
Malloc size
> I was trying to use the computeArraySize() function from the
> MemoryBuiltins.cpp file.  It requires two arguments DataLayout *TD and
> const TargetLibraryInfo *TLI.  Can anyone tell me how to get the
> TargetLibraryInfo?
For examples, take a look at the related code in the LLVM tools:

tools/clang/lib/CodeGen/BackendUtil.cpp
tools/opt/opt.cpp
tools/llc/llc.cpp

  // Add an appropriate TargetLibraryInfo pass for the module's triple.
  TargetLibraryInfo *TLI = new TargetLibraryInfo(TheTriple);
  if (DisableSimplifyLibCalls)
    TLI->disableAllFunctions();
  PM.add(TLI);

 - Chuck