similar to: using the new PassManager

Hi Christian, Chandler also gave two talks at earlier LLVM conferences, which have been recorded and should be available online. Tobias On Wed, Jun 7, 2017, at 09:50 PM, Philip Pfaffe via llvm-dev wrote: > Hi Christian, > > sadly, there aren't any tutorials currently. The PassManager itself is > rather well documented, so I recommend taking a look at that. > > It also

Hi Philip, I also tried that including file: #include "llvm/IR/LegacyPassManager.h" but error remain same. Please help. On Tue, Aug 14, 2018, 2:58 AM Philip Pfaffe <philip.pfaffe at gmail.com> wrote: > Hi Ratnesh, > > the PassManager used in that example has moved into the legacy namespace: > http://llvm.org/doxygen/classllvm_1_1legacy_1_1PassManager.html > >

Frontends _are_ using PassBuilder, but they need to hook into the default pipeline creation to insert the sanitizer passes. On Tue, Sep 25, 2018 at 12:15 PM Fedor Sergeev <fedor.sergeev at azul.com> wrote: > Hmm... frontends should be using PassBuilder anyway. > And if they are using PassBuilder then they are using PassRegistry.def as > well - all the >

Hi, I am begineer to llvm, implementing a main.cpp from https://github.com/davidar/lljvm/blob/master/backend/main.cpp A) : When I am declaring a command: * PassManager PM* * PM.add(new DataLayout td)* It shows error: > *error: missing template arguments before ‘PM’* * PassManager PM;* ^ >*main_test.cpp:48:2: error: ‘PM’ was not declared in this scope* *

Hi Leonard, Fedor, while it's true that RegisterPass is not applicable for new-pm passes, PassRegistry.def is not the whole story. Passes in PassRegistry are available for the opt tool. The sanitizers are passes that usually get added to the pipeline by the frontend. There, you need to use PassBuilder's callbacks mechanism to hook the sanitizer into the optimizer. Assuming you're

Nyx wrote: > The linkage type is set to external, I have little code snippet I use to > register those native functions in the first post of this topic. The global > DCE pass deletes the unused native functions when run. I commented it out > for now... Can you make this happen by writing a custom .ll to demonstrate the problem? For example: $ cat gdce.ll define i32 @foo() {

+ Vedant: what do you think about the last point, since Debugify is also related? Son Tuan Vu On Thu, Apr 19, 2018 at 6:14 PM, Philip Pfaffe <philip.pfaffe at gmail.com> wrote: > Hi Son, > > PassManagerBuilder is used to populate legacy PassManagers. That role is > taken over by PassBuilder for new-PM passes. > > Cheers, > Philip > > 2018-04-18 13:40 GMT+02:00

I don't know how to do that. Rather new to LLVM. The functions that get stripped out are native C++ functions that I'm registering in my execution engine by doing: // Create a function type object for the function llvm::FunctionType* pFuncType = llvm::FunctionType::get(returnType, argTypes, false); // Create a function object with external linkage and the specified

Hi Philip, Thank you for your reply. So what would be the right way/API to write out-of-tree pass? I've been using *PassManagerBuilder*, which requires a callback refering to *legacy::PassManagerBase*, so I guess this will be no longer the good way to go? Son Tuan Vu On Tue, Apr 17, 2018 at 6:06 PM, Philip Pfaffe <philip.pfaffe at gmail.com> wrote: > Hi Son, > > I have an

Hi Vedant, Thanks for your reply. More comments inline. Son Tuan Vu On Fri, Apr 20, 2018 at 10:19 PM, Vedant Kumar <vsk at apple.com> wrote: > Hi, > > + Chandler, who has a lot more experience with our pass managers. > > On Apr 20, 2018, at 12:56 PM, Son Tuan VU <sontuan.vu119 at gmail.com> wrote: > > + Vedant: what do you think about the last point, since

Is there a reason for why `-asan` and `-asan-module` can be mixed but Function passes and Module passes with the new PM can't be mixed? - Leo On Thu, Sep 27, 2018 at 3:21 AM Fedor Sergeev <fedor.sergeev at azul.com> wrote: > > On 09/27/2018 12:25 PM, Philip Pfaffe wrote: >> >> `opt < %s -passed='asan' -asan-module -S` > > asan-module is another

> > `opt < %s -passed='asan' -asan-module -S` > asan-module is another ModulePass, not a commandline option. You can't mix that like this. Cheers, Philip > doesn't produce the same IR as > > `opt < %s -asan -asan-module -S` > > More specifically, the only thing missing seems to be the > `asan.module_ctor` that should get added to the global

Nyx wrote: > Ok, well, I seem to have pinpointed the cause of the problem more accurately. > I'm running some optimization passes on my module after I compile each > function in my scripting language (functions can be compiled at various > times, when scripts are loaded). Now it seems these optimization passes will > prune some of the native C++ functions I'm registering in

Hi Cristianno, On 01/06/13 01:49, Cristianno Martins wrote: > Hello there, > > I'm writing a transformation pass for LLVM, and I hoped to use dce to clean up > the resulting code after my pass. I just have some questions about LLVM's dce > implementation. > > Well, my transformation is a function pass, and, after the changes are made, > some instructions are not

Hello there, I'm writing a transformation pass for LLVM, and I hoped to use dce to clean up the resulting code after my pass. I just have some questions about LLVM's dce implementation. Well, my transformation is a function pass, and, after the changes are made, some instructions are not needed anymore. In order to easily get rid of those instructions, I'm setting all their uses to

Hi Son, PassManagerBuilder is used to populate legacy PassManagers. That role is taken over by PassBuilder for new-PM passes. Cheers, Philip 2018-04-18 13:40 GMT+02:00 Son Tuan VU <sontuan.vu119 at gmail.com>: > Hi Philip, > > Thank you for your reply. So what would be the right way/API to write > out-of-tree pass? I've been using *PassManagerBuilder*, which requires a

Hi, + Chandler, who has a lot more experience with our pass managers. > On Apr 20, 2018, at 12:56 PM, Son Tuan VU <sontuan.vu119 at gmail.com> wrote: > > + Vedant: what do you think about the last point, since Debugify is also related? Could you clarify the question? I'm not sure what it is you'd like me to chime in about. > 2, I've asked this question once but

> On Apr 20, 2018, at 1:46 PM, Son Tuan VU <sontuan.vu119 at gmail.com> wrote: > > Hi Vedant, > > Thanks for your reply. More comments inline. > > Son Tuan Vu > > On Fri, Apr 20, 2018 at 10:19 PM, Vedant Kumar <vsk at apple.com <mailto:vsk at apple.com>> wrote: > Hi, > > + Chandler, who has a lot more experience with our pass managers.

The linkage type is set to external, I have little code snippet I use to register those native functions in the first post of this topic. The global DCE pass deletes the unused native functions when run. I commented it out for now... Nick Lewycky wrote: > > Nyx wrote: >> Ok, well, I seem to have pinpointed the cause of the problem more >> accurately. >> I'm running

Hello all, I have 2 separate questions: 1, What are the differences between *LegacyPassManager* and *PassManager*? I see that *opt* uses the former most of the times while the latter is used via *PassBuilder* API when an user wants to build her own pipeline, but I have no idea why so. What to use and when to use it is not clear to me. 2, I've asked this question once but have had no answer,