similar to: [LLVMdev] standard Data Flow Analysis available in LLVM?

I still can't build LLBrowse on my Debian5-i386 machine today, The following is a full build console output. I am using LLVM-2.8 release build, with needed wxWidgets and CMake. Thank you Chuck sideshow.eecg>time cmake ../llbrowse -- The C compiler identification is GNU -- The CXX compiler identification is GNU -- Check for working C compiler: /steffan/a/a0/czhao/bin/bin32/gcc -- Check

OK try it now - I checked in a few more fixes. On Tue, Feb 22, 2011 at 8:29 AM, Chuck Zhao <czhao at eecg.toronto.edu> wrote: > I still can't build LLBrowse on my Debian5-i386 machine today, > The following is a full build console output. > I am using LLVM-2.8 release build, with needed wxWidgets and CMake. > > Thank you > > Chuck > > sideshow.eecg>time

As mentioned in the title, I want to do some control-flow and dataflow analysis. I can only find the assignment statement in a function, but the assigned variable is just a parameter of this function. For example, **************************************** int foo(struct A* a, int b, ...){ ... a->Int_field = b; ... return 0; } ***************************************** in the code

On Sat, Feb 19, 2011 at 12:27 PM, Talin <viridia at gmail.com> wrote: > LLBrowse - a GUI tool which allows you to inspect the contents of LLVM > modules - now runs on Linux and OS X, and it works with both LLVM 2.8 and > current LLVM head. I've updated the docs to include instructions on checking > out and building the code under several different environments, which you

LLBrowse - a GUI tool which allows you to inspect the contents of LLVM modules - now runs on Linux and OS X, and it works with both LLVM 2.8 and current LLVM head. I've updated the docs to include instructions on checking out and building the code under several different environments, which you can read here: http://llvm.org/svn/llvm-project/llbrowse/trunk/doc/LLBrowse.html (the doc also

John, The release source code (sc-main.tar) won't compile cleanly under Debian6-i386 (gcc/g++: 4.4.5). The compiler back trace is attached. Please fix it/them and repost. Or, 64b system is a requirement? Thank you Chuck llvm[4]: Compiling TypeRuntime.cpp for Release+Asserts build (PIC) cc1plus: warnings being treated as errors

Hi, My apologies for the trouble. I've disabled building DynamicTypeChecks for now (r138224) and now it builds cleanly on 32bit for me here. As for SAFECode support for 32bit vs 64bit, I believe 32bit should work just fine although I haven't personally tested this. Let me know if you have any further issues/questions. ~Will On Sun, Aug 21, 2011 at 9:26 AM, Chuck Zhao <czhao at

Hello all Currently I want to use the accurate liveness information when writing a *target independent* FunctionPass based on LLVM. The one I can find is LiveValues, a FunctionPass. But it doesn't use classic dataflow equation and can only provide approximate and conservative result. The another one is LiveVariables which use classic data flow equation, but it comes from Clang's analysis

Hey there, i have a BasicBlock and in this BB i am going over it finding out the "uses" of each instruction to find out the dataflow, but how do i find out the control flow? or like how do i know that the next load function loads from a previous store function - i cant find this out with the uses iterator because of the SSA form. 1. %In2 = alloca float, align 4 (uses: instr. 12 and 13)

Thanks  Kryzstof, I will look at it. Is there any class that I should look at it ? What about Dataflow.h ? Since I am kind of new, I want to know which classes can help me quicker.    =========================================== Phone : 82-42-860-1838 Fax : 82-42-860-6790 Cell Phone: 82-10-7599-1981 =========================================== --- On Sat, 11/3/12, Krzysztof Parzyszek

Dear All, We have a new release of Clang with SAFECode technology for detecting memory safety errors. Memory safety checking (SAFECode for short) can be turned on with a single command line switch to clang/clang++. The SAFECode techniques do not change the behavior of the clang/clang++ compilers in any way when the switch is turned off, so this can be used as a drop-in replacement for

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

On 2009-09-06 19:57, Ioannis Nousias wrote: > Edwin, > > thank you for your effort, but I'm not sure I understand. > Are you describing a graph traversal problem? Is the data model stored > in a predecessor/successor fashion, which requires you to 'walk' the > graph in order to visit all nodes? (and what happens when you have > disjointed DFGs?). Sorry for the

Is there a traditional dataflow algorithm buried in LLVM somewhere? I need to be able to do some very late transformations (after regalloc) and we aren't in SSA anymore. I will need a dataflow analysis to ensure correctness. At one point I thought I remembered seeing a generic fixed-point dataflow analysis engine but now I can't find it. Does it still exist or did it ever exist? If

On 2009-09-06 17:30, Ioannis Nousias wrote: > I've tried to write a DFGPrinter based on the CFGPrinter, as you > suggested, but encountered problems. > > The GraphWriter expects > GraphTraits<GraphType>::nodes_begin()/nodes_end(). The way this is > implemented in CFG.h, a function is a graph of basic blocks. A > GraphTraits<Function*> inherits from

Edwin, thank you for your effort, but I'm not sure I understand. Are you describing a graph traversal problem? Is the data model stored in a predecessor/successor fashion, which requires you to 'walk' the graph in order to visit all nodes? (and what happens when you have disjointed DFGs?). inline comments follow... Török Edwin wrote: > On 2009-09-06 17:30, Ioannis Nousias

Edwin, thanks, it starts making sense inline comments... Török Edwin wrote: > On 2009-09-06 19:57, Ioannis Nousias wrote: > >> Edwin, >> >> thank you for your effort, but I'm not sure I understand. >> Are you describing a graph traversal problem? Is the data model stored >> in a predecessor/successor fashion, which requires you to 'walk' the

On 4/16/13 11:30 AM, dag at cray.com wrote: > Is there a traditional dataflow algorithm buried in LLVM somewhere? I > need to be able to do some very late transformations (after regalloc) > and we aren't in SSA anymore. I will need a dataflow analysis to ensure > correctness. > > At one point I thought I remembered seeing a generic fixed-point > dataflow analysis engine

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

LLVMers, I need to intercept all LLVM IR instructions that will write into memory and start to do analysis on these instructions. In addition to StoreInst, what are all other IRs that will write into memory? E.g. char * ptr = malloc(...); ///... //with use(s) of ptr later The LLVM IR for the above code would be: %0 = tail call noalias i8* @malloc(i32 137) nounwind ///... //