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...a ModulePass. You can run any pass at any time over any bitcode file with 'opt -mypass file.bc'. If you want to add it to the list of passes that run when linking via libLTO or llvm-ld, you can add it to the list in tools/llvm-ld/Optimize.cpp:Optimize and tools/lto/LTOCodeGenerator.cpp:generateAssemblyCode. A couple other pointers to our doxygen: ModulePass: http://llvm.org/doxygen/classllvm_1_1ModulePass.html CallGraph: http://llvm.org/doxygen/classllvm_1_1CallGraph.html You can take a look at lib/Transforms/IPO/Internalize.cpp to see an example of a link-time optimization pass that uses t...

Hi, Is there a tutorial on how to get started with writing link-time optimization passes? The documentation at http://www.llvm.org/docs/LinkTimeOptimization.html explains the design of the LTO interface, but does not explain where to start writing code. Would my pass go inside libLTO.a or is it separate from libLTO.a? What I would like to be able to do is traverse through the entire

Hi John, Are there any documents about how to add a pass into LTO? Cheers, Zheng On 19 April 2010 15:11, John Criswell <criswell at uiuc.edu> wrote: > Dear Zheng Wang, > > You have a few options: > > 1) You can add your pass to the set of passes that llvm-gcc runs when it > optimizes code.  This requires re-compiling llvm-gcc; it also means that > your pass must be