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Hi, I wrote an IR pass and it adds some instructions that are not used. For example: %1 = call i64 @foo() When %1 is not used at all. I thought that running DCE (-dce) or DIE (-die) after my pass will remove such instructions, but it didn't. Why? And is there a way to do that? Thanks, Tehila. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20151229/2f6839...

Hi. Pre15 compiles out-of-the-box on AIX 4.3.2 ...almost. No patch included this time, but the following were the gotchas: - The __P() prototyping doesn't work (as discussed earlier) - bsd-daemon.o wasn't linked into libssh.a (though configure seemed to detect the need for it) DCE patch will follow shortly. Regards, Tor-?ke ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com

Hello there, I'm writing a transformation pass for LLVM, and I hoped to use dce to clean up the resulting code after my pass. I just have some questions about LLVM's dce implementation. Well, my transformation is a function pass, and, after the changes are made, some instructions are not needed anymore. In order to easily get rid of those instructions, I'm setting all...

Hello, I'd like to measure the impact of optimizations. Trying this (for DCE): * clang -S -emit-llvm test.c * opt -S test.ll > without_dce.ll * opt -S -dce test.ll > with_dce.ll gives without_dce.ll and with_dce.ll having the same content. How can you apply certain optimizations in a specified order? Best, HwJ --- $ cat test.c > int dce(int n) { > if (...

Hi Thanks in advanced. I'm writing a proxy server doing NTLMv2 authentication. I think I need a NetLogon client service . Is there any available library providing netlogon function? or at least an dce rpc library? an asynchronous library is the best. :) Thanks again. Derek.

...ols to investigate the influence of the order of optimization passes on the performance of compiled programs -nothing exceptional here. I noticed something inconvenient with opt, namely that splitting a call does not always give the same output: % llvm-stress > stress.ll % opt -dse -verify -dce stress.ll -o stress-1.bc % opt -dse stress.ll | opt -dce -o stress-2.bc % diff stress-{1,2}.bc Binary files stress-1.bc and stress-2.bc differ The difference seems meaningful; it's ~180 bytes out of ~1400 bytes of output in my random case. I can't decode it however, because disassembling...

Hi, You should add this option to the first command *"-disable-O0-optnone"* so *clang -Xclang -disable-O0-optnone -emit-llvm -S -o without_dce.ll test.c* then *opt -dce -S < without_dce.ll > with_dce.ll* HTH, Son Tuan Vu On Fri, Mar 16, 2018 at 2:15 PM, HwJ via llvm-dev <llvm-dev at lists.llvm.org> wrote: > Hello, > > I'd like to measure the impact of optimizations. > Trying this (for DCE): > > * clan...

Hi Cristianno, On 01/06/13 01:49, Cristianno Martins wrote: > Hello there, > > I'm writing a transformation pass for LLVM, and I hoped to use dce to clean up > the resulting code after my pass. I just have some questions about LLVM's dce > implementation. > > Well, my transformation is a function pass, and, after the changes are made, > some instructions are not needed anymore. In order to easily get rid of those > inst...

If I have: %x = call @externalFunc ... ; other codes where %x is not used ret ; assume void function and use dce optimization, will the call gets eliminated? -- View this message in context: http://old.nabble.com/DCE-and-external-function-tp29932485p29932485.html Sent from the LLVM - Dev mailing list archive at Nabble.com.

I searched google and did not find any hits on this being solved. I want to get ssh so I can the dsa/rsa style password it in an environment that uses dfs/dce authentication if that is possible (and it has not already been solved). In other words, I want to be able to log into a host as a dfs/dce user without typing my password. Before I dig into the code and trying to do this, I wanted to ask those two questions: 1) Has it already been accompli...

Hello, with OpenSSH_2.3.0p1 running in HP-UX 11.00 I noticed that the "SD commands" (like "swcopy") produce the following error when being logged in via SSH: ERROR: RPC exception: "Who are you failed (dce / rpc)" 11/29/00 11:20:18 MET Ideas? Regards, Ulrich P.S. Not subscribed to the list

...ells it out for us (probably too obvious for SAMBA old-timers, but we're just going back to basics in making sure we're operating under the correct assuptions). 2) If question #1 is correct, is there any special configuration, compilation, or invokations we need to do to make SAMBA use the DCE/DFS credentials? For example, on AIX, when we want to use a DFS/DCE file share, we use this command: dce_login dfsuser abc123 (the principal is 'dfsuser', the password 'abc123') and then the directory /.../remoteoffice.ourcompany.com/fs is available to us to work with. When we...

As promised, here's the DCE patch for pre15. (and this time i didn't forget the attachment ;) It enables ssh to authenticate, set groups and attach network credentials. It's a clean implementation (i left out the credential-move-hack). This one adds the --with-dce option to configure Some notes have rised: The f...

These are already open. I'm pretty sure that NT4/2003 PDC's make a DCE/RPC over TCP connection to pull down the <1b> entries from the wins server. I have done packet captures on test NT4 wins server to see how PDC's pull their domain lists, and I see the port 135 three way handshake, which then gets switched over to a tcp port 1028 which is the dce/rpc requ...

...29, 2016 at 10:26 PM To: David Callahan <dcallahan at fb.com<mailto:dcallahan at fb.com>>, Hal Finkel <hfinkel at anl.gov<mailto:hfinkel at anl.gov>> Cc: LLVM Dev Mailing list <llvm-dev at lists.llvm.org<mailto:llvm-dev at lists.llvm.org>> Subject: Re: [llvm-dev] DCE in the presence of control flow. In practice, APT is not faster to build than rdf. The df calculator we use is linear time and quite fast. Updating is also pretty trivial since it's only deletes of dead and unreachable code. So anything it reached can be replaced with undef in most cases. C...

...ion passes on the performance of compiled programs >> -nothing exceptional here. >> >> I noticed something inconvenient with opt, namely that splitting a call >> does not always give the same output: >> >> % llvm-stress > stress.ll >> % opt -dse -verify -dce stress.ll -o stress-1.bc >> % opt -dse stress.ll | opt -dce -o stress-2.bc >> % diff stress-{1,2}.bc >> Binary files stress-1.bc and stress-2.bc differ >> >> The difference seems meaningful; it's ~180 bytes out of ~1400 bytes of >> output in my random case. I...

In practice, APT is not faster to build than rdf. The df calculator we use is linear time and quite fast. Updating is also pretty trivial since it's only deletes of dead and unreachable code. So anything it reached can be replaced with undef in most cases. Cd-dce is not slower in GCC than dce On Fri, Jan 29, 2016, 8:31 PM David Callahan <dcallahan at fb.com> wrote: > I think you can also avoid the RDF computation using a more directed form > of control dependence testing such as described in > > Keshav Pingali and Gianfranco Bilardi. 199...

...2016 at 7:02 AM To: Daniel Berlin <dberlin at dberlin.org<mailto:dberlin at dberlin.org>>, Hal Finkel <hfinkel at anl.gov<mailto:hfinkel at anl.gov>> Cc: LLVM Dev Mailing list <llvm-dev at lists.llvm.org<mailto:llvm-dev at lists.llvm.org>> Subject: Re: [llvm-dev] DCE in the presence of control flow. I had assumed you would treat phi nodes differently from other operations in that they don’t need to keep the block alive just to retain the data flow facts but it would be simplest to do that. Thanks Daniel From: Daniel Berlin <dberlin at dberlin.org<mailto...

Hi leledumbo, > If I have: > > %x = call @externalFunc > ... ; other codes where %x is not used > ret ; assume void function > > and use dce optimization, will the call gets eliminated? only if the compiler can prove that the called function has no side effects (such as modifying some global variables or causing the program to exit). Ciao, Duncan.

Hi, On Mon, Oct 11, 2010 at 3:46 PM, Duncan Sands <baldrick at free.fr> wrote: > Hi leledumbo, > >> If I have: >> >> %x = call @externalFunc >> ... ; other codes where %x is not used >> ret ; assume void function >> >> and use dce optimization, will the call gets eliminated? > > only if the compiler can prove that the called function has > no side effects (such as modifying some global variables or > causing the program to exit). Wasn't there some efforts/investigation to support marking of (body-less) funct...