similar to: Adaptors in new pass manager

Hi, I would like to run the -O1 pass sequence followed by -reg2mem from an out of tree project which uses llvm. I am using the following code snippet to do so but in some cases, my method is also vectorising the code, which doesn't happen when running the same sequence(-S -O1 -reg2mem) through opt. Can someone please help me find what I am missing? Thanks, Akash. *

Here is some timing information from running the Zig standard library tests: $ ./zig test ../std/index.zig --enable-timing-info Name Start End Duration Percent Initialize 0.0000 0.0010 0.0010 0.0001 Semantic Analysis 0.0010 0.9968 0.9958 0.1192 Code Generation 0.9968 1.4000 0.4032

I'm working on a whole program optimizer that uses LLVM as a library, and one of the things I want to do is eliminate dead global functions and variables even when they are not local to a module. (This understandably doesn't happen by default because the optimizer has to assume it could be compiling a library rather than a program.) I've actually written a function to do this, but

Hi, In following link: https://www.youtube.com/watch?reload=9&v=6X12D46sRFw They have specified that the inliner can't use DomTree/LoopInfo/MemorySSA analysis. 1. What's the reason for this? 2. Why can't we do it using getAnalysisUsage() construct? 3. Can inline use this information in the new Pass Manager? 4. What all information can we derive from DomTree to be of help to

Hi, So, does this mean that in legacy pass manager, when I run: PM.add( someFunctionPass() ) // PM is modulePassManager it creates FunctionPassManager, runs the function pass,destroys the functionPassManager and returns control to modulePassManager? Also, you have said that this wasn't the primary reason for the introduction of the new pass manager. But then is this one of the reasons?

On 07/26/2018 04:48 PM, Arun Khan wrote: > <preamble> > I have deployed Linux/Apache/PHP (node1) + MySQL (node2) with Security > Groups (AWS) or iptables controlling who can connect to the MySQL > server. In topology terms -- a 2 Tier architecture. In AWS - one > can deploy several such instances behind a ELB. Each LAP instance > talks to a MySQL RDS. The LAP instances

In the old pass manager a coarser-grain pass cannot depend on a fine-grain pass (or analysis). In this case, the coarser-grain is the Inliner (CallGraphSCCPass) and the finer a FunctionPass. The reason is that the finer-grain pass has its own "pass manager", i.e. it runs all the passes and analysis (in that pass manager) on one function, frees them, and continues with the next function

Revision 190916 Commit message: "Lift alignment restrictions for load/store folding on VINSERTF128/VEXTRACTF128. Fixes PR17268." Actual contents of the commit includes Index: tools/opt/opt.cpp =================================================================== --- tools/opt/opt.cpp (revision 190915) +++ tools/opt/opt.cpp (revision 190916) @@ -462,6 +462,7 @@

I know I'm going to get creamed asking this question in here but I'm really starting to feel that Palmone and Treo 650 (or it's successors) just isn't keeping up with my requirements (bluetooth, wifi, document sync etc) for a mobile device I'm starting to think about moving to a mini laptop or ppc solution with an CF GSM card. Does anyone in here have any experience or

Okay, as far as I can see looking through the output of that, the empty block isn't created near the end, it exists at the start and never goes away. On Sun, Sep 20, 2015 at 1:36 PM, Hal Finkel <hfinkel at anl.gov> wrote: > Hi Russell, > > Can you run your IR though opt with -O3 and -print-after-all and see when > the block becomes empty?

Yes, that is what I was thinking. Should I report it as a bug? On Sun, Sep 20, 2015 at 2:31 PM, Hal Finkel <hfinkel at anl.gov> wrote: > ----- Original Message ----- > > From: "Russell Wallace" <russell.wallace at gmail.com> > > To: "Hal Finkel" <hfinkel at anl.gov> > > Cc: "llvm-dev" <llvm-dev at lists.llvm.org> >

<preamble> I have deployed Linux/Apache/PHP (node1) + MySQL (node2) with Security Groups (AWS) or iptables controlling who can connect to the MySQL server. In topology terms -- a 2 Tier architecture. In AWS - one can deploy several such instances behind a ELB. Each LAP instance talks to a MySQL RDS. The LAP instances are either mod_php or PHP-FPM. OS -- CentOS, Ubuntu. Debian

Hi, Sean: I'm sorry I lie. I didn't mean to lie. I did try to avoid making a *BIG* change to the IPO pass-ordering for now. However, when I make a minor change to populateLTOPassManager() by separating module-pass and non-module-passes, I saw quite a few performance difference, most of them are degradations. Attacking these degradations one by one in a piecemeal manner is wasting

Here is an update about moving Polly later. 1. Why does Polly generate incorrect code when we move Polly immediately after the loop rotating pass? It is mainly caused by a wrong polly merge block. When Polly detects a valid loop for Polyhedral transformations, it usually introduces a new basic block "polly.merge_new_and_old" after the original loop exit block. This new basic block

On 22 May 2016 07:01, "John R Pierce" <pierce at hogranch.com> wrote: > > On 5/21/2016 6:03 PM, John R Pierce wrote: >> >> i started to look at SCL and got lost pretty quickly. I'm not running OwnCloud but I've got some other php stuff thats getting increasingly unhappy about the stock c6 php... > > > ok, I've installed

Hello, I've recently changed AddressSanitizer (asan) compiler pass from ModulePass to FunctionPass and it could a bit of mayhem. The problem is that asan FunctionPass instruments a function foo, then foo gets inlined into bar, then bar gets instrumented and thus the code of foo gets instrumented twice (which causes run-time crash). This happens only at -O0; at -O1 we get the correct order of

Hi, This is Ariel from the Rust team again. I am having another pass ordering issue. Looking at the pass manager at https://github.com/llvm-mirror/llvm/blob/7034870f30320d6fbc74effff539d946018cd00a/lib/Transforms/IPO/PassManagerBuilder.cpp (the early SimplifyCfg now doesn't sink stores anymore! I can't wait until I can get to use that in rustc!) I find that the loop optimization group

Hi all, Attached herewith is a simple vectorized function with loops performing a simple shuffle. I want all loops (inner and outer) to be unrolled by 2 and as such used -unroll-count=2 The inner loops(with k as the induction variable and having constant trip counts) unroll fully, but the outer loop with (j) fails to unroll. The llvm code is also attached with inner loops fully unrolled. To

Hi, If we add multiple loop passes to the pass manager in PassManagerBuilder.cpp consecutively without any func/module pass in between, I used to think they would belong to the same loop pass manager. But it does not seem to be the case. For example for this code snippet PM.add(createIndVarSimplifyPass()); // Canonicalize indvars MPM.add(createLoopIdiomPass()); //

On 09/25/2013 04:55 AM, Star Tan wrote: > Here is an update about moving Polly later. Hi star tan, thanks for your report. > > 1. Why does Polly generate incorrect code when we move Polly immediately after the loop rotating pass? > > It is mainly caused by a wrong polly merge block. When Polly detects a valid loop for Polyhedral transformations, it usually introduces a new basic