similar to: [LLVMdev] Hi Cache Miss and Branch Misprediction

Thanx a lot Guys!! But i have to do this online and and use it to do some kind code transformation. Its for a different project. But all this has given me a quite a bit of knowledge.Wow!!! Thank you Best Ketan ----- Original Message ----- From: "OvermindDL1" <overminddl1 at gmail.com> To: "LLVM Developers Mailing List" <llvmdev at cs.uiuc.edu> Sent: Monday,

On Mon, Sep 29, 2008 at 6:30 PM, Mike Stump <mrs at apple.com> wrote: > /* snip */ AMD's CodeAnalyst is free and quite wonderful at this job. Shows details about just about anything the CPU reports (and on newer AMD CPU's there is an even more ridiculous amount of information) about every little function call, time they took, multiple profiling modes, etc...

Hi Guys, I am an absolute newbie to the compiler community. I am experimenting a little bit with llvm. I have a few small questions, i would be really great if someone could help me. 1. Can i find out (is there something already built), if the previous instruction / or some instruction was a cache miss. Basically i want to detect cache misses and instructions that are causing this 2. Can i find

Ketan Pundlik Umare wrote: > Hi Guys, > I am an absolute newbie to the compiler community. I am experimenting a little bit with llvm. > I have a few small questions, i would be really great if someone could help me. It sounds like what you want is valgrind --tool=cachegrind (or --tool=callgrind). See http://valgrind.org/ > 1. Can i find out (is there something already built), if the

On Sep 28, 2008, at 6:43 PM, Ketan Pundlik Umare wrote: > I am an absolute newbie to the compiler community. I am > experimenting a little bit with llvm. > I have a few small questions, i would be really great if someone > could help me. > > 1. Can i find out (is there something already built), if the > previous instruction / or some instruction was a cache miss. >

Hello guys, I get the following error whenever i try to check if the following pass exists. I am using Mac OSX leopard and gcc4 opt -load ../Release/lib/LLVMHello.dylib -hello Error opening '../Release/lib/LLVMHello.dylib': dlopen(../Release/lib/LLVMHello.dylib, 1): Symbol not found: __ZN4llvm12FunctionPass11runOnModuleERNS_6ModuleE Referenced from:

Hi, There is reported bug about this (#2771), or at least related. http://llvm.org/bugs/show_bug.cgi?id=2771 Though it seems there is no "proper" solution known so far. The workaround is to use 'opt' from the Release/bin directory In your case: ../Release/bin/opt -load ../Release/lib/LLVMHello.dylib -hello Would probably work. Best regards Vlado > Hello guys, > >

Hey, We hit a bug today because Arel::Visitors::ToSql is not threadsafe. Here is what is happening: Arel::Visitors::ENGINE_VISITORS is a cache of visitors instances. These instances are not inherently threadsafe because it contains state ''@last_column'', ''@connection'' that is shared between threads. The other variables ''@pool'',

I managed to find this in the archives, so far: http://www.nabble.com/Setting-up-CCRB-behind-apache-proxy-tt14016053.html#a14099749 Found a better alternative to doing this in my .htaccess instead of messing with the httpd.conf, in case someone is interested: --- snip --- RewriteEngine On ### for cruisecontrol RewriteBase / RewriteRule ^(.*)$ http://localhost:3333/$1 [P] AuthType Basic

Is it possible to have non-persistence mode for domains in Xen similar to VMWare non-persistence mode (VMWare GSX) such that number of domains can be instantiated from one Xen domain-U disk image? /Ketan _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel

On Jan 3, 2011, at 11:30 PM, Jakob Stoklund Olesen wrote: > I noticed that we generate code like this for i386 PIC: > > calll L0$pb > L0$pb: > popl %eax > movl %eax, -24(%ebp) ## 4-byte Spill > > I worry that this defeats the return address prediction for returns in the function because calls and returns no longer are matched. Yes, this will defeat the

I''m having following issue .. i import the zpool and it shows pool imported correctly but after few seconds when i issue command zpool list .. it does not show any pool and when again i try to import it says device is missing in pool .. what could be the reason for this .. and yes this all started after i upgraded the powerpath abcxxxx # zpool import pool: emcpool1 id:

Hi, JCCTray is a Java port of CCTray that was originally written in .NET. JCCTray is a utility for use with all flavors of CruiseControl Continuous Integration servers. Specifically it works with CruiseControl, CruiseControl.NET, CruiseControl.Rb. It provides feedback on build progress, and allows control over some of the server''s operations. You can download JCCTray from

On Feb 2, 2014, at 6:18 PM, Andrew Trick <atrick at apple.com> wrote: >> The result of such a system would produce weights for every block in the above CFG as '1.0', or equivalent to the entry block weight. This to me is a really useful metric -- it indicates that no block in the CFG is really more or less likely than any other. Only *biases* in a specific direction would

Hello, I'm implementing a custom Haskell-to-LLVM compiler, and in my experimentation, noticed that GHC is much slower than clang certain examples, such as the ackermann function. However, from reading their respective IRs (Cmm for GHC and LLVM for clang), I don't really see much of a difference. Here is a link to the numbers. (n, m) are the parameters to the ackermann function

Helps if I send it to the list.... On Tue, Sep 1, 2009 at 5:33 PM, Giridhar S<thisisgiri at gmail.com> wrote: > Oprofile for Linux is a pretty good alternative. > (http://oprofile.sourceforge.net/about/) > > It uses hardware performance counters to collect profiling information > and therefore has very low overhead, whereas Valgrind performs dynamic > binary

On Wed, Sep 25, 2019 at 5:02 PM Eli Friedman via llvm-dev < llvm-dev at lists.llvm.org> wrote: > My biggest question about this architecture is about when propeller runs > basic block reordering within a function. It seems like a lot of the > complexity comes from using the proposed -fbasicblock-sections to generated > mangled ELF, and then re-parsing the mangled ELF as a

On Thu, Sep 26, 2019 at 12:39 PM Eli Friedman <efriedma at quicinc.com> wrote: > > > > From: Xinliang David Li <xinliangli at gmail.com> > Sent: Wednesday, September 25, 2019 5:58 PM > To: Eli Friedman <efriedma at quicinc.com> > Cc: Sriraman Tallam <tmsriram at google.com>; llvm-dev <llvm-dev at lists.llvm.org> > Subject: [EXT] Re: [llvm-dev]

Hello everybody, I am looking for a tool (in Linux or Windows) that allow me to get performance measures like cycle execution, cache accesses, etc. for an x86 architecture. I want to estimate the performance overhead due to the modification that I do using LLVM. Any suggestion is welcome. Thanks in advance, -- Juan Carlos -------------- next part -------------- An HTML attachment was

Evan Cheng wrote: > On Mar 29, 2008, at 6:02 AM, Török Edwin wrote: > > >> Hi, >> >> I would like to transform unpredictable conditional branches with a >> small body into cmov instructions to reduce branch miss penalty. >> LLVM generates cmov/setcc instructions when SelectInst is used. The >> idea >> is to transform regular branches into