similar to: writing llvm pass to instrument read and write

Hello All, I am trying to write llvm pass to instrument function in external library. I am using clang to automatically load my pass. I have test.cpp which calls functions in library testlib.so. I have written llvm pass to instrument all reads and writes in test.cpp and call function(recordRW) in testlib.so. this is how my pass looks like - for (auto &BB : F) { for (auto &I : BB)

Dear all, I have the following data structure > print(testlib) $tags tag count.raw count.adj err 1 aaaaaaaaaa 94 93 0.5 2 aaaaaaaaac 1 2 0.2 3 aaaaaaaaag 3 2 0.1 4 aaaaaaaaca 1 1 0.003 I want to iterate the data above and print

Hi all I''m working on my modular recursive Makefile & svn-backed home for my Puppet manifests, custom functions, types, etc. So I''m trying to put together individual modules, test targets and so on. I have noticed that the $libdir (and probably the other configuration options too) sources from puppet.conf are not overridden by specifying --libdir=blah on the commmand line

Lately I was reading many articles about using boolean queries for search engine but I haven't seen any complete working demo. Therefore I put together very simple working demo of search engine using boolean query. Feel free to suggest any performance improvement or error while keeping it as simple as possible for understanding. Thanks, -Kevin Duraj http://myhealthcare.com

Hey Charles and the list, 2011/11/13 Arnaud Quette <aquette.dev at gmail.com>: > > 2011/11/12 Charles Lepple <clepple at gmail.com> >> >> On Sat, Nov 12, 2011 at 9:41 AM, Arnaud Quette <aquette.dev at gmail.com> >> wrote: >> > since I'm working on improving the Ubuntu regression testing suite [1], >> > which can also serve for

Hi, I am currently having trouble building the DLLs of an application ported from Win32 to Winelib - compiling, thanks to some hints from Dimi O. Paun, now works fine, only(?) the final linking step fails. Since Winelib-documentation is unfortunately pretty outdated, I tried to orientate myself on the makefiles of the Winelib dlls in the cvs /wine/dlls/ directory. I tried the following

$(llvm-config --libs | tr " " "\n" | grep gtest) returns: -lgtest_main -lgtest instead of non-valid: -lLLVMgtest_main -lLLVMgtest It also fixes: $(ld): cannot find -lLLVMgtest $(ld): cannot find -lLLVMgtest_main --- unittests/Makefile.unittest | 2 +- utils/llvm-build/llvmbuild/componentinfo.py | 4 ++-- utils/llvm-build/llvmbuild/main.py |

My pass is looking at StoreInsts acting on global variable that happen to be function pointers. From these StoreInsts I would like to get useful information(the function used if a direct assignment, function pointer used, etc) from the getValueOperand() method. Looking through several examples I see that this can return several things like: GlobalVariable, Function, LoadInst or BitCastInst

I am trying to dyn_cast a Value* to a BitCastInst. The dump of what I want casted is "i8* bitcast (i32 (i32)* @f1 to i8*)", so it is a BitCastInst. For someone my dyn_cast always fails, does anyone see why? arg->dump(); BitCastInst *bitcast = dyn_cast<BitCastInst>(arg); assert(bitcast != NULL); Thank you

Hi there, I'm having a bit of a problem while trying to create BitCast instructions. Well, first, I have some very generic functions written in C, for which I would like to make calls on another C file I'm playing with using an LLVM Pass. The simplified signature of two of these functions can be seen below: void write(void* data, unsigned b); // write b bytes starting, at address

I am trying to change this define void @main(float* noalias %arg0, float* noalias %arg1, float* noalias %arg2) { entrypoint: %0 = bitcast float* %arg1 to <4 x float>* intothis define void @main(float* noalias %arg0, float* noalias %arg1, float* noalias %arg2) { entrypoint: %0 = getelementptr float* %arg1, i64 0 %1 = bitcast float* %0 to <4 x float>* I must be close but

Hi folk, I get the following stack trace and do have any clue how to fix the problem. 0 opt 0x087ecc99 1 opt 0x087ed265 2 0xb7f6a400 __kernel_sigreturn + 0 3 opt 0x086d4198 llvm::LeakDetector::addGarbageObject(llvm::Value const*) + 29 4 opt 0x0872945f llvm::Instruction::Instruction(llvm::Type const*, unsigned int,

Hi, I am writing an alias profiler using the points-to relation. For this I'm inserting a function call of external function with the following type profile(int,int,int,void*,void*,...) I'm trying to pass the dereferenced pointer's memory address and the address of the location who are in alias set of the pointer. For this i'm using BitCastInst BitCastInst *init1= new

In current Xapian SVN HEAD, there is a bug in the query parser concerned with the handling of wildcard terms with a "+" prefix. Specifically, a query such as "+foo* bar" will be parsed by the query parser into Xapian::Query("bar") if there are no terms in the database which start "foo". Instead, since the "+" term cannot be matched, I believe

I noticed a strange behavior when a non-prototyped user-defined function is called. E.g. for the following test.c code segment: void foo(void); void bar(void); void foo(void){ bar(); } void bar(void){ printf("inside bar()"); } LLVM-GCC 2.7 -O0 will generate the following code for foo(), which is all fine. define void @foo() nounwind { entry: * call void @bar() nounwind*

Hi Sanjoy, > Attached set of patches splits llvm.init.trampoline into an "init" > phase and an "adjust" phase, as discussed on the "Go on dragonegg" > thread. thanks for doing this. The patches look good, though the decomposition into individual patches is not that great (since things won't always work, in fact not even compile I think, with not all

Hi, I want to update a document. The document is identified by the document path e.g. /home/user/file.txt. To find the doc id by the path I need to assign the path to the document. In the FAQ is supposed to add the doc id (the path) as a term to the document. My idea is to at the path as a value by #define PATH_ID 0 add_value(PATH_ID, "/home/user/file.txt") and then do a query:

ok 1 last question for the day... I created a function in C. void writeToFile(char *str) { FILE *f; if((f=fopen("example","a"))==NULL){ printf("could not open file"); } else{ fprintf(f,str); fclose(f);} } used this to create .bc then using llc -march=cpp I got the cpp code to create this function. While instrumenting my code, I place call to this function.

Ah! I get it now. Thanks a lot ! I changed it to BitCastInst(AI,VoidPtrTy,"",j); And now I am getting the following error :(. I have been stuck with this error before also. I know I am missing out something silly. What is the cause of this error and Please let me know how to fix it. /home/bhavani/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp:1130: llvm::SDOperand

So, you need to bitcast `pinst` to a pointer to Vector of double, since it (I hope for your sake) is a pointer to integer. What you are trying to do is bitcast a pointer into a vector, which probably will lead to an assert or "bad code that doesn't work". -- Mats On 15 April 2015 at 21:57, zhi chen <zchenhn at gmail.com> wrote: > What I want to do is to change the pInst