search for: instcounts

Hello, I'm trying to print the instruction count of a bytecode file using the 2.4 release of LLVM. I found llvm-2.4/lib/Analysis/Instcount.cpp but I'm not sure what to do with it. I also looked at llvm-bcanalyzer. The documentation says this command is supposed to print the instruction count in the summary, but it doesn't seem to be doing so. Does anyone know what I should be

Patrick Simmons wrote: > Hello, > > I'm trying to print the instruction count of a bytecode file using the > 2.4 release of LLVM. I found llvm-2.4/lib/Analysis/Instcount.cpp but > I'm not sure what to do with it. I also looked at llvm-bcanalyzer. The > documentation says this command is supposed to print the instruction > count in the summary, but it doesn't

Thanks for the reply, Actually I m aiming towards determining two values: - number of basic blocks in a program For this I have used Statistic facility provided in llvm and increasing the counter for each basic block for each function.but for some reason , I m getting different number everytime !! Is Statistic is the right way to do it ? - Average basic block size in a program ( in bytes)

Hi, I am new to llvm and have read all the documents and managed to get the llvm tool working on linux without much problem. I am trying to generate some static analysis information about my program using llvm virtual machine architecture. the file is really simple hello world program with a small loop which increments a variable until a particular iteration. main() { int a,b,c; a=0; b=0; c=1;

Murali, Please send LLVM questions to llvmdev at cs.uiuc.edu . On Mon, Jul 25, 2005 at 02:41:10PM -0400, Murali Krishna Nethi wrote: > Thanks for your reply. I was able to download llvm-tv using the > directions that you had provided to me. > > I have read the whole documentation of llvm yet, have simple question > about llvm. > > I was trying to analyse a simple hello.c

Thanks a lot Chris. Regarding basic block size I wish to calculate both: - The number of bytecode bytes - The number of machine code bytes for some target? TS Chris Lattner <sabre at nondot.org> wrote: On Thu, 7 Apr 2005, Tanu Sharma wrote: > Thanks for the reply, > > Actually I m aiming towards determining two values: > > - number of basic blocks in a program For

There’s a few passes in LLVM that make heavy use of a big DenseMap, one that potentially gets filled with up to 1 entry for each instruction in the function. EarlyCSE is the best example, but Reassociate and MachineCSE have this to some degree as well (there might be others?). To put it simply: at least in my profile, EarlyCSE spends ~1/5 of its time growing DenseMaps. This is kind of… bad.

> Hi All, > Attached above my InstCount.cpp after modification. I did simple > modification which is the following (The statements between the > ************** ) : > bool InstCount::runOnFunction(Function &F) { > unsigned StartMemInsts = > NumGetElementPtrInst + NumLoadInst + NumStoreInst + NumCallInst + > NumInvokeInst + NumAllocaInst; >

> On Mar 15, 2016, at 4:09 PM, Philip Reames <listmail at philipreames.com> wrote: > > > > On 03/15/2016 03:07 PM, via llvm-dev wrote: >> There’s a few passes in LLVM that make heavy use of a big DenseMap, one that potentially gets filled with up to 1 entry for each instruction in the function. EarlyCSE is the best example, but Reassociate and MachineCSE have this to

What should we use instead of DenseMap? —escha > On Mar 15, 2016, at 3:30 PM, Xinliang David Li <xinliangli at gmail.com> wrote: > > yes it makes sense. Avoid using DenseMap when the size of the map is expected to be large but can not be pre-determined. > > David > > On Tue, Mar 15, 2016 at 3:07 PM, via llvm-dev <llvm-dev at lists.llvm.org <mailto:llvm-dev at

Great! For the hotness, try creating a small test case with a very hot loop that iterates many times. Let me know if you are still having trouble. While the llvm-dis serialization is being discussed, I suppose at the very least this can go in with the rest of the existing YAML summary dumping and get emitted from llvm-lto2 using the patch Peter attached. Peter - do you want to add that to

On Wed, Jun 7, 2017 at 8:58 AM, Charles Saternos <charles.saternos at gmail.com > wrote: > Alright, now it outputs YAML in the following format: > > --- > NamedGlobalValueMap: > X: > - Kind: GlobalVar > Linkage: ExternalLinkage > NotEligibleToImport: false > Live: false > a: > - Kind:

Here's some stuff that may be useful for your papers n stuph: * Analyze has a pass "-instcount" written by Dinakar, which will tell you things like the number of functions, basic blocks, and instructions are in a program. It will even classify the instructions into different opcodes, if you want to report things like #loads+#stores or something. * Most of the olden

Dear All, Does llvm-bcanalyzer still print the number of instructions in a bitcode file, or has that functionality been removed? -- John T.

On Mar 30, 2009, at 12:08 PM, John Criswell wrote: > Dear All, > > Does llvm-bcanalyzer still print the number of instructions in a > bitcode > file, or has that functionality been removed? Try the "opt -instcount -stats" option, -Chris

Hello, I am using gdb to debug the -instcount pass. The steps I followed were: 1. gdb opt 2. break llvm::PassManager::run 3. run -stats -analyze -instcount filename.bc I got the bc file using -emit-llvm option as following: llvm-gcc -O3 -emit-llvm filename.c -c -o filename.bc But when I started debugging, the debugger never really went into my bitecode file, filename.bc and it returned me the

I perform the Instcombine pass over Rijndael benchmark from Mibench ( suite of benchmarks). For compile, I use "-Instcount" for counting the instructions. Comparing the bench without transformation with the bench transformed by instcombine, I perceived a 10% of increase in the number of instructions. This is possible? On Wed, Jun 27, 2012 at 4:57 AM, Duncan Sands <baldrick at

By using analyze -stats -instcounts <bytecode> I can get the total number of instructions but I want to extract instruction level parallelism . That is I want to know number of add instruction that can be executed in parallel, similarly for multiply ... This would give me an idea what is upper limit of adders ( and multipliers...

On Mon, Jul 17, 2017 at 6:11 AM Charles Saternos via llvm-dev < llvm-dev at lists.llvm.org> wrote: > Hey @chandlerc and @dblaikie, > > Any updates on this in relation to "[PATCH] D34080: [ThinLTO] Add > dump-summary command to llvm-lto2 tool"? > Sorry you've kind of got stuck in the middle of this - but I'm still hoping to hear/understand the pushback on

I need to count the total number of instructions in a given module. The only way I found is using the obvious double iteration as seen below. Is there any more efficient way to achieve this ? I don't like the fact that simple calculation like that has performance of o(F*B) (# of functions * # of blocks per function) unsigned int calcSize(Module* mod) { unsigned int size = 0; for