similar to: [LLVMdev] Viewing graphs while debugging code under windows?

hi eli, i delete the cache of cmake, and reconfigure the project, but HAVE_GRAPHVIZ still undefine. do you know what i should do? thanks very much. regards --ether On Tue, Dec 1, 2009 at 12:41 PM, Eli Friedman <eli.friedman at gmail.com> wrote: > On Mon, Nov 30, 2009 at 8:32 PM, ether zhhb <etherzhhb at gmail.com> wrote: >> hi all, >> >> i just install gv and

Hi Ether, I work under Windows and am able to view graphs generated by LLVM. I haven't tried generating and viewing dog graphs while debugging but I hope this helps. What I do is to invoke llc.exe and pass a switch to generate the graph at the stage(s) you want to see (DAG combine, legalize, scheduling, etc), for example: llc.exe mykernel.ll -view-legalize-dags -f. The graphs are saved

Hi Ether, The detection for graphviz / dotty / ... has been added recently to llvm cmake. It should work properly if those tools are available in the PATH. The related svn commits are : 86153, 86547 and 86644. Those commits are not present in llvm release <= 2.6, but they are straight forward to apply. Best regards, -- Arnaud de Grandmaison -----Original Message----- From: llvmdev-bounces at

On Mon, Nov 30, 2009 at 8:32 PM, ether zhhb <etherzhhb at gmail.com> wrote: > hi all, > > i just install gv and dotty for windows, but i cant see any way to > configure it using cmake. > > is Viewing graphs under windows supported? and how could i configure it? LLVM doesn't use a specific search path to find the relevant executables for that feature. I don't see

hi again :) On Tue, Apr 13, 2010 at 8:57 AM, ether zhhb <etherzhhb at gmail.com> wrote: > hi john, > > thanks very much, i will try it out. > > --best regards > ether > > > On Mon, Apr 12, 2010 at 10:03 PM, John Criswell <criswell at uiuc.edu> wrote: > >> ether zhhb wrote: >> >>> hi all, >>> >>> i have some thing

hi all, i have some thing not so sure about "scope" of llvm passes: suppose i have a function pass PassF and a BasicBlock analysis pass PassB. if i want to use the analysis result of PassB for a BasicBlock in PassF, i think i can create PassB in runOnFunction of PassF, and call runOnBasicBlock manually to get the result: PassB pb; //create a PassB //we also need consider the analysis

Devang Patel wrote: > On Mon, Apr 12, 2010 at 6:41 PM, ether zhhb <etherzhhb at gmail.com> wrote: > > >> that's because FunctionPass implement the "addLowerLevelRequiredPass" >> function, but others not. >> >> so, is there any special reason that only "addLowerLevelRequiredPass" is >> allow? >> >> > >

On Mon, Apr 12, 2010 at 6:41 PM, ether zhhb <etherzhhb at gmail.com> wrote: > that's because FunctionPass implement the "addLowerLevelRequiredPass" > function, but others not. > > so, is there any special reason that only "addLowerLevelRequiredPass" is > allow? > There is no reason to not allow it. It is not done because there was not any use. If

hi, i am building selectionDAG by my own code, but got a assertion fail said "SrcValue is not a pointer?". but since the comment above the SrcValueSDNode said: "SrcValueSDNode - An SDNode that holds an arbitrary LLVM IR Value." why the llvm value of SrcValueSDNode must be with PointerType? is that assertion necessary? thanks a lots. regards --ether

ether zhhb wrote: > hi John, > > sorry for reply so late. > > On Tue, Apr 13, 2010 at 10:38 PM, John Criswell <criswell at uiuc.edu > <mailto:criswell at uiuc.edu>> wrote: > > Devang Patel wrote: > > On Mon, Apr 12, 2010 at 6:41 PM, ether zhhb > <etherzhhb at gmail.com <mailto:etherzhhb at gmail.com>> wrote: > >

hi John, sorry for reply so late. On Tue, Apr 13, 2010 at 10:38 PM, John Criswell <criswell at uiuc.edu> wrote: > Devang Patel wrote: > >> On Mon, Apr 12, 2010 at 6:41 PM, ether zhhb <etherzhhb at gmail.com> wrote: >> >> >> >>> that's because FunctionPass implement the "addLowerLevelRequiredPass" >>> function, but others

Hello Ether, I think it is referring to the Value class (captial V) whose documentation is found at http://llvm.org/doxygen/classllvm_1_1Value.html . It has to be a pointer because the Value class is a parent class to many many child classes. --Sam ----- Original Message ---- > From: ether zhhb <etherzhhb at gmail.com> > To: LLVM Developers Mailing List <llvmdev at

Hi, 2011/4/8 Vlad Krylov <krvladislav at gmail.com>: > Hi. > > I see that to detect scops firstly we search for regions in CFG ( by > RegionInfo ) and then select regions that answer some requirements ( > in ScopDetection ). Because only affine expressions in conditions and > bounds are permissible, we trying to get scalar expressions into > affine form by

Hi I would like to view the various dags being output during codegen. Unfortunately, I am not seeing the files being dumped. I will really appreciate if someone can help me here llc switch.bc -f -view-dag-combine1-dags ( i tried -view-isel-dags, -view-sched-dags as well) Writing '/tmp/llvm_zbbAKM/dag.main.dot'... done. Writing '/tmp/llvm_G4rLKf/dag.main.dot'... done. Writing

Be careful about oversimplifying signed integer comparisons -- integer arithmetic can easily overflow, so you cannot transform A > B to A - B > 0. The compare instructions in most processors do not simply subtract and test the most significant bit; they compute what the sign of the difference would be in extended precision. On Apr 17, 2010, at 1:00 PM, llvmdev-request at cs.uiuc.edu wrote:

Hi. I see that to detect scops firstly we search for regions in CFG ( by RegionInfo ) and then select regions that answer some requirements ( in ScopDetection ). Because only affine expressions in conditions and bounds are permissible, we trying to get scalar expressions into affine form by AffineSCEVIterator. At present there plugs for scev types Truncate, ZeroExtend, SignExtend, UDivExpr,

hi, i have a backend that want to do custom combine on SETCC nodes. but some time SETCC was combined into BR_CC before i can visit it to do my own combine, because DAGCombiner always do its own combine before custom combine. so, is there anyway to prevent it being combined without changing the logic of DAGCombiner? thank you very much --ether

Hi, i am playing the ScalarEvolution these days. i found the the ScalarEvolution will simply return a SCEVUnknow for a ICmpInst, so i think maybe great to add a new kind of SCEV to the ScalarEvolution framework. for example, if i run ScalarEvolution on the bc file generate from the following C source file: int f(int a, int b, int c, int d) { return (2 * a + 5 * c + 2) > (4 * d - 3*b

hi every one, i am use LLVM targeting a architecture with a processor and reconfigurable logic around it. now the llvm code generator work fine with the processor, but i am struggling to make the code generator to generate proper DAGs for the reconfigurable logic because "The LLVM target-independent code generator is designed to support efficient and quality code generation for standard

hi Eli, thanks for reply :) i am currently decompose the BR_CC node to a target SETCC node and a target BRCOND node, but since BR_CC node sometimes is combine from a BRCOND node and SETCC node, so i just wondering if theres any better way :) regards --ether