similar to: [LLVMdev] Work with CallSites

Hi, I am working on a pass to convert lib calls to intrinsic calls as discussed here: http://lists.cs.uiuc.edu/pipermail/llvmdev/2013-January/058507.html In my first attempt I created a FunctionPass that uses CallInst::setCalledFunction to replace the callee with the appropriate intrinsic (using Intrinsic::getDeclaration). After the pass runs I get an assertion from CallGraphSCCPass:

You are probably calling setName() on the called Function, which in-turned renamed the called Function instead of replacing the called function. Depending on your use-case, if you are certain that you only need to modify CallInsts, then you could simply call CallInst::setCalledFunction , otherwise it’s probably wiser to use CallSite as a wrapper for both CallInst and InvokeInst. Do note, however,

I've got a call instruction: call void bitcast (void (%4 addrspace(1)*, <2 x i32>, <4 x float>)* @_Z12write_imagefPU3AS110_image2d_tDv2_iDv4_f to void (%9 addrspace(1)*, <2 x i32>, <4 x float>)*)(%9 addrspace(1)* %dstimg, <2 x i32> %28, <4 x float> %26) nounwind %4 and %9 are both (stripped) opaque structs. InlineFunction() does not inline this because

Hello; I am trying to clone some call instructions in the IR and then set the call destination of those call instructions to my own library functions that happens to have the same arguments and return types of the original callee. It works perfectly for direct calls using setCalledFunction(). But when the function call is indirect, is there a way to set the callee? Something like

Hello and thanks for the answer, I'm still facing issues, I'll do my best to explain my situation, as I explained, I have two modules, each one with its own main and functions, I would like to replace in the *oldModule* a function call that is calling *foo2* (defined in *oldModule*) to instead call *foo3*, which is defined in the *refModule. *So in summary, I have: 1. The original

Hi, I want to convert a function pointer call in the IR of MPlayer to a function call. For example, I have the following line: ... %10 = tail call i32 %7(%struct.demuxer* nonnull %0, i32 %1, i8* %2) #7, !dbg !863222 ... I want to set the target which is stored in %7 to a real function called "demux_lavf_control()" with the following definition: ... define internal i32

Hi Ahmad, What does that tool does besides what LLVM linker already does? I don't think my problem is in linking both modules, I think LLVM linker does the job for me, the issue is when changing the called function to call another function (in the example previously provided, to change it from foo2 to foo3, and adjusting the function parameter's references). Regards, Daniel Moya El

On Fri, Nov 9, 2012 at 3:25 PM, Relph, Richard <Richard.Relph at amd.com> wrote: > I've got a call instruction: > call void bitcast (void (%4 addrspace(1)*, <2 x i32>, <4 x float>)* @_Z12write_imagefPU3AS110_image2d_tDv2_iDv4_f to void (%9 addrspace(1)*, <2 x i32>, <4 x float>)*)(%9 addrspace(1)* %dstimg, <2 x i32> %28, <4 x float> %26)

Thank you Ahmad, I figured out that, although the type of both p(oInst) and p(nInst) were the same, I had to: for (unsigned int i = 0; i < callOInst->getNumArgOperands(); i++) { callOInst->getArgOperand(i)->mutateType(callNInst->getArgOperand(i)->getType()); } that solves the issue at the calling instruction in the main function, but now I see that *linkModules* does not work

Hello, In my module I have functions: a b c f3 calls "a" f2 calls "a" f1 calls "b" I would like to modify a CallInst in the f2. Now it calls "a", but I want changed it to "c". When loop over the instructions of the f2, I can get a CallInst to be modified, then I use "setName" to changed it to "c". Problem is, since

Hi Paul, > I am working on a pass to convert lib calls to intrinsic calls as discussed here: http://lists.cs.uiuc.edu/pipermail/llvmdev/2013-January/058507.html this whole area is a little confusing. If you can recognize a libcall as being equivalent to an intrinsic, you could indeed turn it into an intrinsic, but on the other hand you could just directly do on it the IR transforms you want

Hi Philip, Thank you very much for your answer, the vector declaration example worked. I'm pretty sure the ValueToValueMapTy is the last thing I need because I even saw there is another function that could help me llvm*:*:RemapFunction <http://llvm.org/doxygen/namespacellvm.html#addf0183e92893bdbcde00fc9091dda93>; but my problem is that I don't know how to populate the

Hi Philip, Thanks for the reference, I was able to follow it and copy the code that I saw necessary, but I still have some issues (references are still not updated). I created the function: void populateVMap(llvm::ValueToValueMapTy &VMap, llvm::Function *fOld, llvm::Function *fNew) { llvm::Function::arg_iterator DestI = fOld->arg_begin(); for (llvm::Function::const_arg_iterator J =

On Tue, Jul 27, 2010 at 7:46 AM, Chuck Zhao <czhao at eecg.toronto.edu> wrote: >  LLVM (2.7 release version) provides 2 implementations for inlining > function callsites: > > - InlineSimple.cpp (-inline):               inline simple callsites > according to its cost analysis > - InlineAlways.cpp (-always-inline):  inline all callsites that are > marked with

LLVM (2.7 release version) provides 2 implementations for inlining function callsites: - InlineSimple.cpp (-inline): inline simple callsites according to its cost analysis - InlineAlways.cpp (-always-inline): inline all callsites that are marked with "always_inline" attribute. They are both subclasses of Inline.cpp that assumes the function's definition (body) is

On 7/27/2010 12:40 PM, Devang Patel wrote: > On Tue, Jul 27, 2010 at 7:46 AM, Chuck Zhao<czhao at eecg.toronto.edu> wrote: >> LLVM (2.7 release version) provides 2 implementations for inlining >> function callsites: >> >> - InlineSimple.cpp (-inline): inline simple callsites >> according to its cost analysis >> - InlineAlways.cpp

Hi Philip, The error happens when the program finishes and it automatically calls the destructors, so it is not an error specifically inside my program. Here's the full code: #include "llvm/ExecutionEngine/ExecutionEngine.h" #include "llvm/ExecutionEngine/MCJIT.h" #include "llvm/IRReader/IRReader.h" #include "llvm/Support/TargetSelect.h" #include

On Tue, Jul 27, 2010 at 9:46 AM, Chuck Zhao <czhao at eecg.toronto.edu> wrote: > I don't, and the compiler doesn't neither, that is the problem, unless I do > hacking at compile time. > E.g.: > - put all such function's definitions into file1.c > - force to compile file1.c 1st. > - when compiling file2.c: >  . read file1.bc >  . attach to file2's

Hi all, There is a problem about how AliasSetTracker merging AliasSet's when meet UnknownInst. When adding new pointer it looks for existing AliasSet's aliased with new pointer. And merging them together. It is ok for pointers: if %A mayalias %B and %B mayalias %C then %A mayalias %C. But the same logic when adding callsite is wrong ( findAliasSetForUnknownInst). Callsite may be known

Hello LLVM Developers, I'm trying to replace a function defined in one module into another module (different files). The first issue I ran into was that llvm::Function does not have a method "moveBefore" or "moveAfter" as the llvm::BasicBlock or llvm::Instruction do, so I figured I would just move the BasicBlocks of the replacing function into the function that was being