similar to: LLVM compile-time regression tracking?

Hi Tobias and all Polly developers, I have re-evaluated the Polly compile-time performance using newest LLVM/Polly source code. You can view the results on http://188.40.87.11:8000. Especially, I also evaluated our r187102 patch file that avoids expensive failure string operations in normal execution. Specifically, I evaluated two cases for it: Polly-NoCodeGen: clang -O3 -load

Hi Nikita, Glad to hear that Rust code can benefit a lot from this. I have put patches to enable merge-similar functions with thinLTO. https://reviews.llvm.org/D52896 etc. <https://reviews.llvm.org/D52896> This is more powerful than existing merge-functions pass and all we need to do is port these patches to trunk llvm. I'd be happy to help with this effort. -Aditya

On 07/30/2013 10:03 AM, Star Tan wrote: > Hi Tobias and all Polly developers, > > I have re-evaluated the Polly compile-time performance using newest > LLVM/Polly source code. You can view the results on > http://188.40.87.11:8000 > <http://188.40.87.11:8000/db_default/v4/nts/16?compare_to=9&baseline=9&aggregation_fn=median>. > > Especially, I also evaluated

At 2013-07-31 22:50:57,"Tobias Grosser" <tobias at grosser.es> wrote: >On 07/30/2013 10:03 AM, Star Tan wrote: >> Hi Tobias and all Polly developers, >> >> I have re-evaluated the Polly compile-time performance using newest >> LLVM/Polly source code. You can view the results on >> http://188.40.87.11:8000 >>

On 07/31/2013 09:23 PM, Star Tan wrote: > At 2013-07-31 22:50:57,"Tobias Grosser" <tobias at grosser.es > <mailto:tobias at grosser.es>> wrote: > >>On 07/30/2013 10:03 AM, Star Tan wrote: >>> Hi Tobias and all Polly developers, >>> >>> I have re-evaluated the Polly compile-time performance using newest >>> LLVM/Polly source

I would be interested in learning what the set of used semantics for float-to-int conversion is. If the only two used are 1) undefined behavior if unrepresentable and 2) saturate to int_{min,max} with NaN going to zero, then I think it makes sense to expose both of those natively in the IR. If the set is much larger, I think separate intrinsics for each behavior would make sense. It would be nice

Hi everyone! The fptoui/fptosi instructions are currently specified to return a poison value if the rounded-towards-zero floating point number cannot be represented by the target integer type. The motivation for this behavior is that overflowing float to int casts in C are undefined behavior. However, many newer languages prefer to have a float to integer cast that is well-defined for all input

Did something change with exception handling recently? A bunch of lit bots are showing slower compile times for many tests. Ciao, Duncan. On 20/06/12 07:53, llvm-testresults at cs.uiuc.edu wrote: > > lab-mini-03__O0-g__clang_DEV__x86_64 test results > <http://llvm.org/perf/db_default/v4/nts/1283?compare_to=1278&baseline=999> > > Run Order Start Time Duration >

Nothing that I'm aware of has changed with EH. Is it possible to bisect the problem? -bw On Jun 20, 2012, at 12:38 AM, Duncan Sands <baldrick at free.fr> wrote: > Did something change with exception handling recently? A bunch of lit bots are > showing slower compile times for many tests. > > Ciao, Duncan. > > On 20/06/12 07:53, llvm-testresults at cs.uiuc.edu

Hi Bill, > Nothing that I'm aware of has changed with EH. Is it possible to bisect the problem? I don't see any relevant LLVM changes, so I guess clang C++ compilation slowed down due to some clang changes. I'm not going to investigate this. Ciao, Duncan. > > -bw > > On Jun 20, 2012, at 12:38 AM, Duncan Sands <baldrick at free.fr> wrote: > >> Did

Are these 225 compile time regressions real? It sure looks bad! Ciao, Duncan. On 01/12/11 09:39, llvm-testresults at cs.uiuc.edu wrote: > > bwilson__llvm-gcc_PROD__i386 nightly tester results > > URL http://llvm.org/perf/db_default/simple/nts/380/ > Nickname bwilson__llvm-gcc_PROD__i386:4 > Name curlew.apple.com > > Run ID Order Start Time End Time > Current 380

Hi, I'm interested in finding ways to reduce code size. LLVM's MergeFunctions pass seems like a promising option, and I'm curious about its status in tree. Enabling MergeFunctions gives a 1% code size reduction across the entire iOS shared cache (a collection of a few hundred system-critical DSO's). The numbers are even more compelling for Swift code. In fact, the swift compiler

Hi, I have just tagged 3.7.1-rc1, so it is ready for testing. As a reminder, when doing regression testing, use the 3.7.0 release as your baseline. Thanks, Tom

The debug info statistics bot is triggered by this job: http://green.lab.llvm.org/green/job/clang-stage2-Rthinlto/ which unfortunately hasn't been green in a very long time (>1mo). Alex/Azhar, do you know what's blocking that job? -- adrian > On Nov 20, 2019, at 9:46 AM, David Blaikie <dblaikie at gmail.com> wrote: > > +usual debug info folks (but I think in this case

Hi llvm-dev@ LNT produces statistics and graphs (such as [0]) of debuginfo metrics, such as number of source variables with locations. It looks like these haven't run [1] since the move from svn to git -- are there any plans to get these running again? I find it highly useful to identify what commits have affected variable locations and how significant an affect. [0]

Hello all, I have done some basic experiments about Polly canonicalization passes and I found the SCEV canonicalization has significant impact on both compile-time and execution-time performance. Detailed results for SCEV and default canonicalization can be viewed on: http://188.40.87.11:8000/db_default/v4/nts/32 (or 33, 34) *pNoGen with SCEV canonicalization (run 32): -O3 -Xclang -load

At 2013-08-01 23:29:14,"Tobias Grosser" <tobias at grosser.es> wrote: >On 07/31/2013 09:23 PM, Star Tan wrote: >> At 2013-07-31 22:50:57,"Tobias Grosser" <tobias at grosser.es >> <mailto:tobias at grosser.es>> wrote: >> >>>On 07/30/2013 10:03 AM, Star Tan wrote: >>>> Hi Tobias and all Polly developers,

Hi, Continuing recent efforts in understanding compile time slowdowns, I looked at some historical data: I picked one test and tried to pin-point commits that affected its compile-time. The data I have is not 100% accurate, but hopefully it helps to provide an overview of what's going on with compile time in LLVM and give a better understanding of what changes usually impact compile time.

At 2013-08-09 10:20:46,"Tobias Grosser" <tobias at grosser.es> wrote:>On 08/08/2013 06:27 PM, Star Tan wrote: >> At 2013-08-08 22:28:33,"Tobias Grosser" <tobias at grosser.es> wrote: >>> On 08/08/2013 01:29 AM, Star Tan wrote: >>>> Hi all, >>>> >>>>

On 09/08/2013 08:03 PM, Star Tan wrote: > Hello all, > > > I have done some basic experiments about Polly canonicalization passes and I found the SCEV canonicalization has significant impact on both compile-time and execution-time performance. Interesting. > Detailed results for SCEV and default canonicalization can be viewed on: http://188.40.87.11:8000/db_default/v4/nts/32 (or