similar to: [LLVMdev] determining the number of iteration of a loop

On Apr 21, 2010, at 7:31 AM, khaled hamidouche wrote: > I'm wandring to know how many times a block is executed inside a > loop ? > knowing that I can't use getSmallConstantTripCount() because the > number is unkown "for (i=0;i<N;i++) for example" In general, the number of iterations is undecidable. For example: int main(char **argv, int N) { for

Hello I'm wandring to write a Function parser that iterates over loops inside each function and inside each loop iterates over instructions So I found a way to do the Function parser that iterates over BasicBlocks (using the runOnfunction Pass) but I no know how make it iterates over loops ? So my question is there any way to make a loop inside the runOnfunction to iterate over

In your example the the number of iterations is known -- it is N. It is not known at compile time, but it's known at run-time before you enter the loop. So you can do transforms like if( N < threshold ) copy of loop optimized for small iterations count; else copy of loop optimized for large iterations count; But you are right, in general, the number of iterations in unknown. I think Khaled

Hello I'm trying to install LLVM and LLVM GCC so I check out the source of llvm and llvm-gcc-4.2 from the svn I flow the instructions of this page http://llvm.org/docs/GCCFEBuildInstrs.html I did the installation of LLVM and LLVM GCC well but the problem is there is no llvm-gcc at the end of instalation !!! ?? I mean in the /usr/local/bin/ there are all the commands of llvm (lli llc llvmc

You need to manually copy the llvm-gcc front-end binaries to somewhere in your path. Alternatively, you can download the clang front-end and start using that instead. On Mon, Apr 19, 2010 at 10:58 AM, khaled hamidouche <khaledhamidouche at gmail.com> wrote: > Hello > > I'm trying to install LLVM and LLVM GCC > so I check out  the source of llvm and llvm-gcc-4.2 from the svn

Hi all, I'm a new LLVM user and I'm wandring to know if there is a pass to outline a delimited part of a code in a separate function and replace this portion of code by a call to this function ? Thank you -- K.H -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20121204/be34df14/attachment.html>

khaled hamidouche wrote: > Hello > > I'm trying to install LLVM and LLVM GCC > so I check out the source of llvm and llvm-gcc-4.2 from the svn > > I flow the instructions of this page > http://llvm.org/docs/GCCFEBuildInstrs.html > > I did the installation of LLVM and LLVM GCC well but the problem is > there is no llvm-gcc at the end of instalation !!! ?? >

Hello How to get the type of an Operand ? so for example I want to get the type of the operand(0) in this istruction %arrayidx22 = getelementptr [1000 x double]* %C, i64 0, i64 %indvar67 ; <double*> [#uses=1] I tried (II->getOperand(0))->getType() ) but this give me an adress (I think) (some think like 0x1253.. ) also I tried to get the type of the instruction with switch

Hello is there any way to pass argument to my own Function pass I mean I wrote a Function pass (like Hello) that give me somme analyzes about the code source and I need to pass somme argument to the Pass like the size of data.... I want some think like this opt -load ../../../Debug/lib/LLVMHello.so -hello2 < test.bc > /dev/null arg1 arg2 ... So how to get inside the Function pass the

Hi, My pass heavily relies on llvm::Loop's getSmallConstantTripCount method. However, I found that it doesn't work for some simple cases. In the following example, I can get the constant trip count of the outermost loop if statement "a[l] = a[l] + 1" is there. After commenting out this line, the returned constant trip count for that loop is 0. In my pass, I traverse the nested

In my pass, I add LoopInfo as a required pass. Then I'd like to print the constant loop trip count of each loop if it has one. However, every time I call loop-> getSmallConstantTripCount(), it returns 0, even for a very simple loop: for(i=0; i<3; ++i) {;} What's the possible cause of this problem? regards, Bo -------------- next part -------------- An HTML attachment was

Hi, I cannot find the getSmallConstantTripCount function in the current LLVM. Can anyone tell me whether there is still such a function to get the trip count in LLVM? Thank you very much. Best, Han

Hello all, I am new to this list and hopefully I am at the right place. Firstly, thanks to everyone involved in this project. You do a great job! Now, I use "net" to join Windows AD domains and was wondering where I can find out more information on what happens during a "net ads testjoin". The information I found on the documentation pages of net or smb.conf on the website

Hi, I am trying to get a small loop to *not vectorize* for cases where it doesn't make sense. For instance, this loop: void foo(int a[4][8], int n) { int b[4][8]; for(int i = 0; i < 4; i++) { for(int j = 0; j < n; j++) { a[i][j] = b[i][j]; } } } * Has maximum of 8ints copy. LLVM tries to use Memcpy for the inner loop. It is not helpful to perform

> > SNIP > > Is there anyone who can help with this question? prism# net ads testjoin Join is OK That's about it. Pretty simple. > > > > Regards, > Khaled > > 2010/4/30 Khaled Blah <khaled.blah at googlemail.com>: >> >> Can anyone give me any hints please? I've read the man pages for >> smb.conf and for net and then I read the

Hello, I would like to know whether it is possible to select (a) specific IP(s) for a "net ads dns register" call. The reason for my question is that we have setups with several interfaces, a few of which are "internal" interfaces but technically they're ethernet interfaces. Adding all those internal interfaces to a Windows AD server leads to the DNS server giving out the

Hi Deepali, SCEV reports the backedge taken count as "((-1 * (sext i32 (3 + %x) to i64))<nsw> + ((sext i32 (3 + %x) to i64) smax (sext i32 (6 + %x) to i64)))", so symbolically it does have an answer. Ideally SCEV should be able to exploit <nsw> on (3 + %x) and (6 + %x) to fold the expression above to "3", but due to some systemic issues SCEV can't exploit

Hi All, the attached patch performs the splitting in the proposed manner. before applying the patch, please execute svn cp lib/Transforms/Scalar/LoopUnroll.cpp lib/Transforms/Utils/UnrollLoop.cpp to make the patch apply and preserve proper history. Transforms/Utils/UnrollLoop.cpp contains the unrollLoop function, which is now used by the LoopUnroll pass. I've also moved the

Hello Matthijs, Separating mechanism from policy is a good thing for the LoopUnroll pass. Instead of moving the policy to a subclass though, I think it'd be better to move the mechanism, the unrollLoop function, out to be a standalone utility function, with the LoopInfo object passed in explicitly. FoldBlockIntoPredecessor would also be good to make into a standalone utility function, since

Dears Any one knows a standalone voip transcoder software name,not an ip pbx. What I want is to transcode the incoming sip calls from g711 to g723 or ilbc or g729 ..... and forward it to a media gateway .. Regards Khaled chehab ********************************************* No employee or agent is authorized to conclude any binding agreement on behalf of Xplorium with another party by