similar to: [LLVMdev] Passes calling

On 6/12/14, 11:03 AM, Chandler Carruth wrote: > > On Thu, Jun 12, 2014 at 4:45 PM, Hanbing Li <hanbing.li at inria.fr > <mailto:hanbing.li at inria.fr>> wrote: > > Hi, > > I know when a pass needs other passes, it will use something like > this: "AU.addRequired<LoopInfo>();". But this is usually used for > the analysis passes.

Dear John, First thing, the 3 loops in Densemap are all " Loop at depth 1 containing: %1<header><exiting>,%3,%5<latch> " in the 3 functions. The dense map is in a ImmutablePass. I got it in FunctionPass and tried insert the information in this FunctionPass. So to turn the FunctionPass to ModulePass may be a better idea? Another interesting thing: if just before

Hello, I am trying to add some thing into LLVM, while I encountered some problems. So my situation is that I have some information W, some transform passes may change it, after these passes, I need the new W. What I did is to create an analysis pass similar to scalar-evolution or loopinfo, I can get the information by using getAnalysis<W>(); and preserve this information W by using

On Jun 12, 2014, at 9:41 AM, Chandler Carruth <chandlerc at google.com> wrote: > > On Thu, Jun 12, 2014 at 5:23 PM, John Criswell <criswell at illinois.edu> wrote: > On 6/12/14, 11:03 AM, Chandler Carruth wrote: >> >> On Thu, Jun 12, 2014 at 4:45 PM, Hanbing Li <hanbing.li at inria.fr> wrote: >> Hi, >> >> I know when a pass needs other

Hello, everyone, I created a dense map like this: DenseMap<Loop *, int> ls; And I have a module which contains 3 functions: function F and it has a loop which is " Loop at depth 1 containing: %1<header><exiting>,%3,%5<latch> " function G and it has two loops which are " Loop at depth 1 containing: %8<header><exiting>,%10,%14<latch>

Hi list, I want to use LLVM to compile the C code to arm. Host: Mac OS X 10.10 Target: Pandaboard, armv7l, ubuntu I found some useful information but not worked yet. I tried like this: $ clang -fomit-frame-pointer -ggdb -emit-llvm --target=armv7l-unknown-linux-eabi -mcpu=cortex-a9 —mfpu=neon -mfloat-abi=softfp --sysroot=/... test.c -c -o test.bc --> clang-3.5: error: no such file

Hello, I wrote my own pass which needs to do some loop unrolling. I can perform loop unrolling via opt: opt -mem2reg -loops -loop-simplify -loop-rotate -lcssa -loop-unroll -unroll-count=50 mytest.bc -o mytest.bc This command works perfectly. However, what I really want is to produce the **same behavior** but from my own pass (i.e., I don't want to use opt). I wrote a Module pass which

On Jul 22, 2010, at 2:05 PM, John Criswell wrote: > If you write your pass as a ModulePass, then you can iterate over the > functions in any order that you want. I had considered that, but my FunctionPass depends on other passes processing the functions first: void MyPass::getAnalysisUsage(AnalysisUsage &AU) const { AU.addRequired<UnifyFunctionExitNodes>();

When migrating my project to 2.9, I've encountered a strange segfault where if a ModulePass's getAnalysisUsage adds LoopInfo and DominatorTree, then llvm::PMTopLevelManager::findAnalysisUsage will segfault. What's odd is that if I rearrange this (add required for DominatorTree before LoopInfo), it does not segfault. I realize that LoopInfo requires and preserves DominatorTree, but this

Hi All, When I use llvm, I encounter a problem like "unable to schedule pass A required by C" I investigated deeper. It's like: I have three passes, say A, B, C(all are on function level) A would modify IR code. (change instruction order) For pass B, I would use the result of pass A, I use addRequired<B>(), and &getAnalysis<B>(), it works. void

Thanks for the response. I do have assertions enabled, and none of them are getting hit. I did do a search of the mailing list for the past year (approximately) before writing my email, and what I found was that you should be allowed to use LoopInfo and other analysis function passes from a module pass, with the only difference being that getAnalysis is passed the function. The example code I

Thanks John, I modify my code to like this: bool XXX::ModulePass(Module &M){ .... LoopInfo &li = getAnalysis<LoopInfo>(fi); .... } Here fi is a Function* pointing to main(). Now when I run the pass, another error shows up: AnalysisType& llvm::Pass::getAnalysisID(const llvm::PassInfo*, llvm::Function&) [with AnalysisType = llvm::LoopInfo]: Assertion `ResultPass

Trevor Harmon wrote: > On Jul 22, 2010, at 2:05 PM, John Criswell wrote: > > >> If you write your pass as a ModulePass, then you can iterate over the >> functions in any order that you want. >> > > I had considered that, but my FunctionPass depends on other passes > processing the functions first: > Two things to consider: 1) The PassManager

Hi Michael, > When migrating my project to 2.9, I've encountered a strange segfault > where if a ModulePass's getAnalysisUsage adds LoopInfo and > DominatorTree, then llvm::PMTopLevelManager::findAnalysisUsage will > segfault. I suggest you build LLVM with assertions enabled - then you should get a helpful error message rather than a segfault. I think you are not allowed to

On Aug 6, 2012, at 6:04 AM, Jorge Navas <navas at comp.nus.edu.sg> wrote: > > Hello, > > I wrote my own pass which needs to do some loop unrolling. > > I can perform loop unrolling via opt: > > opt -mem2reg -loops -loop-simplify -loop-rotate -lcssa -loop-unroll > -unroll-count=50 mytest.bc -o mytest.bc > > This command works perfectly. > >

Hi all, I tried to have a LoopInfo object in a function pass, add addRequired<LoopInfo> in getAnalysisUsage, and then use getAnalysis<LoopInfo> in runOnFunction(). It worked OK. Now I want to have a module pass to traverse the functions, and similarly I want to have to loop information of the functions. When I did the above in runOnModule, and run the pass, the following error popped

Hi, I'm trying to use the function getAnalysis. This is the code I'm using : void getAnalysisUsage(AnalysisUsage &AU) const { AU.addRequired<LoopInfo>(); AU.setPreservesAll(); } virtual bool runOnModule(Module &M) { LoopInfo &LI = getAnalysis<LoopInfo>(); } I get following error when I try to run my pass : opt:

On 6/20/16 3:46 PM, Yuxi Chen wrote: > Hi, > > Thanks for your reply. > But I still don't know how a transform pass updates a new analysis > pass after it modifies the IR. Can you explain it clearly? I am not > familiar with pass management and invocation. Passes can have methods that allow their internal state to be updated by other passes (the same way that their state

LLVMers, I am doing a CallGraphPass but would like to get the LoopInfo of the functions inside this pass, is this possible? Currently I have a function inside the CallGraph struct: void getAnalysisUsage(AnalysisUsage &AU) const { AU.addRequired<LoopInfo>(); AU.addPreserved<LoopInfo>(); } And later inside the pass I am calling: LoopInfo &LI =

On Tue, Nov 29, 2011 at 6:59 PM, Ryan Taylor <ryta1203 at gmail.com> wrote: > The following code is causing an "UNREACHABLE executed!" and a stack dump, > any ideas? The stack might be handy. > namespace { >   struct myPass : public CallGraphSCCPass { >   static char ID; >   myPass() : CallGraphSCCPass(ID) {} >   virtual void getAnalysisUsage(AnalysisUsage