search for: aliaes

Hello, I have several virtual machines, all with CentOS 6.x and one so called virtual server at a web hoster my virtual machines (VMware) were all installed manually using the .iso, some exist longer and therefore were originally a CentOS 6.3, some are newer and wer originally a CentOS 6.6; and this virtual server has been installed using a preconfigured image from the web hoster; on all

Hello All, I have met one may-alias case from llvm's alias analysis. The code snippet is as following: char buf[4]; void test (int idx) { char *a = &buf[3 - idx]; char *b = &buf[idx]; *a = 1; *b = 2; } I can see below output from alias set tracker for above code snippet. Alias sets for function 'test': Alias Set Tracker: 1 alias sets for 2 pointer values.  

There are function which does have optimization opportunities but because of may-alias memory dependencies sometimes optimization is not effective. May be runtime checks kills the gains of optimization. For such cases aiming to do interprocedural function specialization optimization where in the clone function version no-alias assumption can be assumed and the original function version will hold

Hi, The current AliasAnalysis marks may-alias for cases when memory passed as function argument. i.e. void foo(int *A, int *B, int *C) { for (int i=0; i<N; i++) A[i] = B[i] + C[i]; } In the above example, it's may-alias for memory 'A', because 'A' is not known at 'foo' call sites. Alias analysis is able to figure out memory 'A' is no-alias, if I

Hello, I have Asterisk-1.8.3.2, dahdi-linux-complete-2.4.1+2.4.1, and libpri-1.4.11.5 installed and running on a Ubuntu 10.04 server all built from source. Everything is working nicely except one small issue. The CDR records are stored in the CSV file correctly and complete. The MySQL storage is working as it should and is automatically updating all the fields except the CLID field. I have

Hi, I am trying to get the alias info for the following code. The alias analysis returns "MayAlias" for arrays "A" and "B" in both the functions instead of "NoAlias". What passes should I run in opt before the alias analysis pass to get the accurate result? Example: //Note: static and called by func() only. static int sum(int *A, int *B) { int i = 0,

Dne 17.9.2019 v 16:14 Ralf Prengel napsal(a): > > > Am 17.09.2019 um 13:05 schrieb Miroslav Geisselreiter: >> I have brand new PC with this components: >> CPU Intel? Pentium G5400, LGA1151 >> motherboard ASUS PRIME B360M-C >> 16 GB RAM >> HDD 2x ADATA SSD 256GB XPG GAMMIX S11, PCIe Gen3x4 M.2 2280 (RAID1) >> NIC Intel X550-T1 Ethernet Converged Network

Hi a new small question ;=) We have two Asterisk, connected in IAX2. On the first, in dialplan, we have: exten => _XX.,1,Set(IAXVAR(ACCOUNTID)=${CDR(accountcode)}) we sent into the IAXVAR "ACCOUNTID" the accountcode. On the second, in dialplan, we have: exten => 18,2,AGI(Caller-ID.agi,${IAXVAR(ACCOUNTID)}) That's work, the second server get the variable. I

Can I use puppet to ensure that a file includes certain text but not be required to maintain the entire file? For example, I would like /etc/modprobe.conf to contain the following lines but the file will also contain lines that are system dependent. --------------------------------------------------------------------------------------- # Disable IPV6 alias net-pf-10 off alias ipv6 off

Hey Matt, That's awesome. Thank you very much for all the information and clarification! Just a few follow up questions. Could you kindly shed some lights on it? Thank you! 1. I tried to tweak the code in the following way: - Clang [-> LLVM-IR]: https://llvm.godbolt.org/z/n9rGrs - [LLVM-IR ->] opt: https://llvm.godbolt.org/z/Uc6h5Y And i note that the outputs are: Alias sets for

Hi, I've oh323 chan installed and working to make calls from SIP to H323 devices. The problem is can no hear sound with the H323 device. I think this is some related with codecs o nat, because the H323 have one public IP from a different subnet from the asterisk box. If I use netmeeting in gateway mode, the call can be completed and I can talk with a SIP device, but in gateway mode I can not

Dear LLVM Developers, My name is Artem Vopilov, I am a student at TU Darmstadt. I am writing to you to ask about Alias Analysis. I am using llvm to analyze alias between variables in programs. I am using Alias Analysis implemented in llvm with command "opt -analyze -aa-eval -print-all-alias-modref-info" and for printing sets of alias "opt -analyze -aa-eval -print-alias-sets".

Hello, I am performing alias analysis toward the following simple code: struct MyStruct { int * f1; int * f2; }; void NOALIAS(void* p, void* q){ } int main() { struct MyStruct s[2]; int a,b; s[0].f1 = &a; s[1].f1 = &b; NOALIAS(s[a].f1, s[b].f2); return 0; } When I use the following command to generate .bc code and conduct alias analysis: clang -c -emit-llvm t.c -O2 opt -basicaa

Can you post the source code of your test case? Gan On Fri, Dec 2, 2011 at 1:44 PM, <liyi at cs.toronto.edu> wrote: > Hi, > > Could anyone tell me how exactly do I use "Type Based Alias Analysis"? > > I compiled the C program with Clang, and verified that there is tbaa > metadata in the IR code. > > But then when I use "opt -tbaa input.c.bc

Hi I have this simple c code for which I would like to use for alias analysis. #include <stdio.h> #include <stdlib.h> static int (*fp) (void); void ind_call (int (*compr)(void)){ fp = compr; fp(); } int hello(void){ return printf("hello world\n"); } int main(){ ind_call(hello); return 0; } So, I do the following: bin/opt -basicaa

Hi, Could anyone tell me how exactly do I use "Type Based Alias Analysis"? I compiled the C program with Clang, and verified that there is tbaa metadata in the IR code. But then when I use "opt -tbaa input.c.bc -aa-eval" to check the results, it always gives 100% may aliasing no matter what input. Am I using "tbaa" correctly? Thanks. Yi

Hi, I'm trying to work with Type Based Alias Analysis (TBAA). Here's the example program I'm working with: ;;;;;;;;;;;;;;;;;;;;;; define void @foo(i64* %a, i64* %b, i64 %x, i64 %y) { store i64 %x, i64* %a, !tbaa !2 ; write to stack store i64 %y, i64* %b, !tbaa !3 ; write to heap ret void } !1 = !{!"root"} !2 = !{!"stack", !1} !3 = !{!"heap", !1}

On 06/11/2018 02:33 PM, Friedman, Eli via llvm-dev wrote: > On 6/11/2018 10:06 AM, jingu at codeplay.com via llvm-dev wrote: >> Hello All, >> >> I have met one may-alias case from llvm's alias analysis. The code >> snippet is as following: >> >> char buf[4]; >> >> void test (int idx) { >> char *a = &buf[3 - idx]; >> char *b =

Hi all, I have a problem with alias aliasing results returned by the alias set tracker and the alias analysis evaluator. so i call opt tool to run my module with the following options "-anders-aa -aa-eval -print-alias-sets -print-all-alias-modref-info" i use 2 classes to print alias analysis, the AliasSetTracket and AliasAnalysisEvaluator. but they give different results. here is a

Thanks, that's a lot more like the output I was expecting. But, I'm now wondering if I'm doing something wrong because the output confuses me. When run on the program: int main() { int a = 5; int* b = &a; int* c = &a; return *b; } I would expect to see either b may alias c or b must alias c. But, it doesn't even appear in the list. Furthermore, I would expect