similar to: LLVM Plugin Built Outside of Source Tree

Florian, On 7/10/19 2:17 PM, Florian Hahn wrote: > http://www.cs.cornell.edu/~asampson/blog/llvm.html describes how to > create an out-of-source pass (see 'Let’s Write a Pass’). I think it > is for LLVM 3.8 though. Thanks for pointing that out. I had actually recently stumbled across that page (and the GitHub repository it references, https://github.com/sampsyo/llvm-pass-skeleton)

Andrzej, On 7/14/19 8:02 AM, Andrzej Warzynski wrote: > This is still very early stages, but you can be my guinea pig: > > https://github.com/banach-space/llvm-tutor > > It's a tutorial that I've been preparing recently and am hoping to > present somewhere at some point :-) I believe that it already covers 1), > 2) and 3). I haven't had the time to work on 4).

Hello , I am following http://llvm.org/docs/WritingAnLLVMPass.html this to build a simple pass with in the source tree. When I try to run make command on my pass directory. I am getting following error: ../../../Makefile.common:60: ../../../Makefile.config: No such file or directory ../../../Makefile.common:68: /Makefile.rules: No such file or directory make: *** No rule to make target

Hello all, I'm trying to follow the guide http://llvm.org/docs/WritingAnLLVMPass.html to build an some passes and analysis groups out of tree. However, I'm having some trouble with crashes when I try to follow the guide. The first section provides a very useful example of what the whole .cpp file should look like for the HelloWorld pass. Obviously it's a bit more complex to write the

Hi again everyone... After following the "Writing an LLVM Pass" tutorial using LLVM 2.5, there is a part that states that: "This makefile specifies that all of the .cpp files in the current directory are to be compiled and linked together into a Debug/lib/Hello.so shared object that can be dynamically loaded by the opt or bugpoint tools via their -load options."

> On Jul 15, 2020, at 12:28, Chen, Yuanfang <Yuanfang.Chen at sony.com> wrote: > > In codegen with NPM, I've made all codegen passes (IR or MIR pass) to be only driven by `llc`. Both due to the way NPM registering pass (on-demand&dynamic instead of static initialization in Legacy PM), and reduce the confusion about which tool (`llc` or `opt`) to test codegen IR passes. >

On Wed, Jul 15, 2020 at 6:39 PM Chen, Yuanfang via llvm-dev <llvm-dev at lists.llvm.org> wrote: > Indeed, but there is a distinction about their position in the pipeline. We run opt & codegen pipeline separately, Why, though? Is there a reason why this inherently makes sense, or is it just a historical accident? At least to me it seems that it would make more sense to run all passes

Hi, what's the current state of being able to build simple analysis passes out-of-tree against only llvm headers and libraries with llvm-config? I see that clang and klee do not use llvm-config but for example rubinius does. Should both approaches be documented? Currently for example docs/WritingAnLLVMPass.html says "you need to create a new directory somewhere in the LLVM source

One thing I want to mention. I believe in the current legacy pass manager implementation only one MachineFunction ever exists at a time. It is deleted before the next MachineFunction is created. This is very important for memory usage. I think the MachineOutliner being in the pipeline may create an exception to this. I think the initial version of retpoline used a ModulePass and that had to be

Hi Matt, which analysis is this? ________________________________________ From: Matt Arsenault <whatmannerofburgeristhis at gmail.com> on behalf of Matt Arsenault <arsenm2 at gmail.com> Sent: Tuesday, July 21, 2020 12:02 PM To: Craig Topper Cc: Chen, Yuanfang; Nicolai Hähnle; llvm-dev at lists.llvm.org Subject: Re: [llvm-dev] [RFC] Introducing classes for the codegen driven by new pass

Hello, We have a user that wants to get the code coverage report for his library without turning on instrumentation for the library clients or change how they are built (only the library is instrumented). It seems like the inline member functions defined in headers are not instrumented in this case because the clients are not instrumented. The library itself does not have a copy of the inline

-Yuanfang > -----Original Message----- > From: Arthur Eubanks <aeubanks at google.com> > Sent: Monday, July 13, 2020 12:49 PM > To: Chen, Yuanfang <Yuanfang.Chen at sony.com> > Cc: LLVM Developers' List <llvm-dev at lists.llvm.org> > Subject: Re: [llvm-dev] [RFC] Introducing classes for the codegen driven by > new pass manager > > While we're

Hello LLVM community, I was trying to port a target specific loop transformation pass (HexagonVectorLoopCarriedReusePass) to the New Pass Manager. However, I could not figure out a way to register this pass with opt. I can see that llvm/lib/Passes/PassRegistry.def is the registry for target independent passes. Can anyone point me to an example/API which can help me in registering this pass so

I find a bug in document llvm/docs/WritingAnLLVMPass.html#debughints Since the PassManager class is in the namespace llvm, we should use command (gdb) break llvm::PassManager::run to set breakpoint. Otherwise we get error message: (gdb) break PassManager::run Can't find member of namespace, class, struct, or union named "PassManager::run" Hint: try

I need to generate variables like status1, status2, status3, ...... request1, request2, request3, ...... this is my code, other unrelated detail are eliminated. static int varNum; static const char *getVarNum() { ++varNum; std::stringstream ss; ss << varNum; std::string *varname = new std::string(ss.str()); return varname->c_str(); } const char *VarNum = getVarNum(); Twine *x1 = new

#define GET_BIT(lll) \ // blah blah #define G(label1,label2) \ { \ // decent amount code \ ... while (1) { \ GET_BIT(label2); \ }; \ } void f() { if (..) G('c', 'd'); while ( .. ) G('a','b'); } After perf sampling, a lot

Hi Eli, Thanks for the link! I'm able to compile a standalone pass outside of the source tree, and I'm obviously ably to compile analysis groups inside the source tree. However, the problem comes when I try to do what the tutorial suggests to create an analysis group outside of the source tree. My understanding is that building out of tree requires different methods to register the

On Sun, Dec 16, 2012 at 7:23 AM, Duncan Sands <baldrick at free.fr> wrote: > Hi Stephen, > > > On 13/12/12 18:58, Stephen McGruer wrote: > >> I'm wondering if the documentation for LoopPass >> (http://llvm.org/docs/**WritingAnLLVMPass.html#**LoopPass<http://llvm.org/docs/WritingAnLLVMPass.html#LoopPass>) >> is misleading or >> incorrect (or

Hello guys, Do we have a pass to do unconditional branch folding except the one in Codegen? I checked in the lib/Transforms/Scalar, did not see any promising one. thank you, yuanfang

I'm wondering if the documentation for LoopPass ( http://llvm.org/docs/WritingAnLLVMPass.html#LoopPass) is misleading or incorrect (or if I'm just missing something.) The documentation states: "The doFinalization method ... is called when the pass framework has finished calling runOnLoop<http://llvm.org/docs/WritingAnLLVMPass.html#runOnLoop> for every loop in the program being