similar to: Instruction does not dominate all uses!

Hi, I'm writing a manual using Sweave and I want to be able to print errors from bad code. Here's an example: <Function-4a>>= MySqrt <- function(x) { if (missing(x)) { stop("'x' is missing with no default") } if (!is.numeric(x)) { stop("'x' should only be numeric") } if (x < 0) { stop("'x' should be

In reference to an old posting: we managed to get a copy of the final CVS Corel-WINE code. I am trying to compile it with GCC-3.3.4. I realize that this might not work as I had to hunt down three patches on Google to build GLibc-2.3.1 with that GCC version. NOTE: for those that don't know, GLibc-2.3.1 is the last version of GLibc that Corel-WINE will work with. So, I was building

I ran into a problem where systems without DNS entries could not connect to the rsync server with the IPV6 patch applied. Here is a fix to the problem. Basically they were checking the list of IP addresses returned by getaddr even if getaddr failed. I just changed it so they only check the list of IP addresses if getaddr succeeds. Any comments on this please email me directly because I do not

Hi Matt, Philip, You could get the data you want by recording the addresses returned by the allocateCodeSection and allocateDataSection methods on your RTDyldMemoryManager, then disassembling those sections after you've called resolveRelocations. That's a little unsatisfying though. For one thing, unless you very carefully maintain the association with the original object via

This is of course not homework. I am trying to understand how fast math optimizations work in llvm. When I compared IR for both the programs, the only thing I have noticed is that fdiv and fmul are replaced with fdiv fast and fmul fast. Not sure what happens in fdiv fast and fmul fast. I feel that its because d/max is really small number and fast-math does not care about small numbers and consider

Hello, I just migrated from Postfix/Courier/Maildrop to Postfix/Dovecot/Deliver/Sieve and don't unterstand the right syntax for sieve :( I searched and found many small examples and many links to the RFC, but nothing was usefull for me (or i didn't unterstand it) I installed the latest Dovecot-Sieve (hg). Examples from my maildrop config: # Filter FROM if($E =~ /name at domain1\.tld/)

On Mon, May 4, 2015 at 2:19 PM, Nicholas White <n.j.white at gmail.com> wrote: >> It's not quite the same testcase. > Yes - it's an extension of the first test case that I'd expect to be > optimised out in the same way as my earlier example (i.e., store a > value, read it back and branch on it). If you miss out the > "check.first.array.element" block

Hi, I very new to wine and do not have much knowledge. Sorry for that, but I'm trying to spend more time on wine. I want to run the Checkpoint FW-1 for NG Policy Editor under Linux. So I thought, maybi it's possible with wine to do so. I downloaded the wine-20011106-1.i386.rpm and the wine-devel-20011106-1.i386.rpm on my RedHat 7.1 System and installed it. I'm using the standard

Hello, I have followed steps given in - https://stackoverflow.com/questions/29910051/integrating-llvm-passes/48142693#48142693 <https://stackoverflow.com/questions/29910051/integrating-llvm-passes/48142693#48142693>, to integrate my pass with pass manager and run it with clang. I am able to run my pass with opt - opt -mypass but when I try to run it with clang, I always get an error -

On Mon, May 4, 2015 at 9:40 AM, Nicholas White <n.j.white at gmail.com> wrote: > Thanks - that makes sense. It's interesting that at -O3 the optimizer > can't reduce the below though - I'll dig into it a bit and see if I > can make a patch that fixes it: I'm unsure what you expect to happen below. It's not quite the same testcase. GVN will PRE the loads, so you

Great stuff; thanks both! I'm also looking to turn my MCJIT conversion spike into our main use case. The only thing I'm missing is the ability to get a post-linked copy of the generated assembly. In JIT I used JITEventListener's NotifyFunctionEmitted and used a MCDisassembler to disassemble the stream (with my own custom annotators), and redirected the output to the relevant place

I am sorry to not make my question clear. My question is how this value is calculated without having fadd and fsub in IR? On Sat, Aug 11, 2018 at 4:06 PM, Craig Topper <craig.topper at gmail.com> wrote: > Neither 1e16 or 1e16+1 can be accurately represented in a double. The > largest integer than be accurately represented is 2^53. As the number gets > larger floating sacrifices

Hi, I have below code in C - int main() { double x,y; x = 1e16; y = (x + 1) - x; printf("y:%e\n", y); return 0; } llvm bitcode looks like this for this function - ; Function Attrs: nounwind uwtable define dso_local i32 @main() local_unnamed_addr #0 { entry: %call = tail call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64

(though, usual caveat: you /usually/ shouldn't be doing that - instead relying only on whatever semantics the IR actually carries, rather than implying extra semantics based on the demangled name) On Wed, Jun 24, 2020 at 12:48 PM Johannes Doerfert via llvm-dev <llvm-dev at lists.llvm.org> wrote: > > I have not tried it but maybe > > `std::string llvm::demangle(const

Hello, LLVM IR flattens out the structure with one integer element to i32. Is there any way to disable this? I want to preserve the type information of the structure. I tried compiling the program with O0, it maintains the type for most of the instructions but for all. Regards, Sangeeta -------------- next part -------------- An HTML attachment was scrubbed... URL:

Hello, I am doing some program analysis with C++ programs. I need to check if some particular function is called in the program, for that I need the name of the function being called in the call instruction. Since C++ mangles the name of the function, I need a way to demangle the function name in llvm IR. Is there any way to achieve that in llvm pass? Regards, Sangeeta -------------- next part

Do you pull clang under llvm/tools and compile it as well? In theory, if `opt` recognize the option, so does `clang -mllvm`. 2018-01-12 8:47 GMT+08:00 sangeeta chowdhary <sangitachowdhary at gmail.com>: > Hello, > > I have tried giving this option like this > > clang -c -emit-llvm -mllvm -rdetector hello.c -c -o hello.bc > but I am getting error " Unknown command

I have taken SimplePass and added in Transform directory, “libLLVMSimplePass.a” is built but I can not see this pass in opt —help. I don’t even see the name of pass while registering it in the example. > On Jan 13, 2018, at 7:35 AM, David Chisnall <David.Chisnall at cl.cam.ac.uk> wrote: > > On 13 Jan 2018, at 03:45, Craig Topper via llvm-dev <llvm-dev at lists.llvm.org>

Dear R helpers Suppose val1 = c(10, 20, 35, 80, 12) val2 = c(3, 8, 11, 7) I want to select either val1 or val2 depending on value of third quantity val3. val3 assumes either of the values "Monthly" or "Yearly". If val3 = "Monthly", then val = val1 and if val3 = "Yearly", then val = val2. I tried the ifelse statement as ifelse(val3 =

Fairly straightforward code motion of MSR / TSC / PMC accessors to the sub-arch level. Note that rdmsr/wrmsr_safe functions are not moved; Linux relies on the fault behavior here in the event that certain MSRs are not supported on hardware, and combining this with a VMI wrapper is overly complicated. The instructions are virtualizable with trap and emulate, not on critical code paths, and only