search for: instrumentor

...ualberta.ca/~pejic/PathProfiling.html > > Slobodan, > > This looks interesting. I have a few questions. Thanks for taking the time to look through! > > Is there anything about your proposed profiling method that requires the > use of lli or llvm-ld? I'm assuming the instrumentor itself will simply > be a Pass. Will this work in setups that use the machine's native linker > as long as it links in libprofile_rt? The current static library libprofile_rt is being built as a .bca file (archive of .bc files.) Presumably the build process can be changed to create a n...

...someone has any amendments, I > can incorporate them. > > http://www.cs.ualberta.ca/~pejic/PathProfiling.html Slobodan, This looks interesting. I have a few questions. Is there anything about your proposed profiling method that requires the use of lli or llvm-ld? I'm assuming the instrumentor itself will simply be a Pass. Will this work in setups that use the machine's native linker as long as it links in libprofile_rt? Is libprofile_rt built during the LLVM build process? Is the intent for libprofile_rt to be the home for all profiling runtime or just path profiling? If the lat...

Hello, I am planning on contributing path profiling to LLVM by the end of August. I have written a document of what the interface to the path profiles would look like at that time. If someone has any amendments, I can incorporate them. http://www.cs.ualberta.ca/~pejic/PathProfiling.html Slobodan Pejic

...liang David Li <davidxl at google.com> wrote: > There is some misunderstanding about the intention of this flag. The > purpose of the flag is not to turn on profile instrumentation (which > already has -fprofile-instr-generate or -fprofile-generate for it), but to > select which instrumentors to use for PGO (IR or FE). I prefer fewer flags > too, but sharing flags for completely different purpose does not seem like > the right thing to do. > > Ah, right. It does seem like I'm misunderstanding the intention for that flag. FWIW, I think consolidating the flags can happe...

There is some misunderstanding about the intention of this flag. The purpose of the flag is not to turn on profile instrumentation (which already has -fprofile-instr-generate or -fprofile-generate for it), but to select which instrumentors to use for PGO (IR or FE). I prefer fewer flags too, but sharing flags for completely different purpose does not seem like the right thing to do. David On Sun, Jun 26, 2016 at 9:39 PM, Dean Michael Berris <dberris at google.com> wrote: > On Fri, Jun 24, 2016 at 1:44 AM Eric Christoph...

On Fri, Jun 24, 2016 at 1:44 AM Eric Christopher via llvm-dev < llvm-dev at lists.llvm.org> wrote: > > > On Thu, Jun 2, 2016, 6:41 PM Xinliang David Li via llvm-dev < > llvm-dev at lists.llvm.org> wrote: > >> >> Sounds fine to me, though I am not a fan of using unstable in the option. >> I think a more meaningful way (that capture the essence of the

...l at google.com> > wrote: > >> There is some misunderstanding about the intention of this flag. The >> purpose of the flag is not to turn on profile instrumentation (which >> already has -fprofile-instr-generate or -fprofile-generate for it), but to >> select which instrumentors to use for PGO (IR or FE). I prefer fewer flags >> too, but sharing flags for completely different purpose does not seem like >> the right thing to do. >> >> > Ah, right. It does seem like I'm misunderstanding the intention for that > flag. > > FWIW, I thin...

Hi, I have a question regarding PGO. I collected profile data with the instrumentation build (-fprofile-instr-generate) and provided for PGO optimization in the second build (with -fprofile-instr-use=xxx.profdata). This works fine. Then I tried to provide the profile data to opt using the option -pgo-instr-use, but this causes an error with the message: "Not an IR level instrumentation

On Fri, Mar 11, 2016 at 7:04 PM, Sean Silva <chisophugis at gmail.com> wrote: > > > On Fri, Mar 11, 2016 at 6:00 PM, Vedant Kumar <vsk at apple.com> wrote: > >> >> > On Mar 11, 2016, at 5:28 PM, Sean Silva <chisophugis at gmail.com> wrote: >> > >> > >> > >> > On Fri, Mar 11, 2016 at 12:47 PM, Vedant Kumar <vsk at