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I'm creating a struct of `{i8,i64}` and `DataLayout::getTypeAllocSize` is returning `12`. `getStructLayout` also gives an `4` offset for the second element. The native ABI, and clang, for the same type are producing a size of 16, with an alignment of 8, for the second element. This is for the system triple "x86_64-linux-gnu" What could be causing this difference in alignment and

I think I see a potential issue. My ExecutionEngine setup may not be using the same target as my object code emitting, and in this test case I'm running in the ExecutionEngine.  I'll go over this code to ensure I'm creating the same triple and see if that helps -- I'm assuming it will, since I can't imagine the exact same triple with clang would produce a different layout. On

Hello! I''m just starting out with Rails--and Ruby itself for that matter--and have a couple of questions regarding primary_key_prefix_type and non-integer primary keys. I see in the ActiveRecord documentation [1] that by default the primary key of a table "foo" is expected to be "id", though primary_key_prefix_type this can be changed to :table_name or

It sounds like your DataLayout may not match clang's for x86_64-linux. What does it say about the alignment of i64? On Wed, Apr 18, 2018 at 12:05 PM edA-qa mort-ora-y via llvm-dev < llvm-dev at lists.llvm.org> wrote: > I'm creating a struct of `{i8,i64}` and `DataLayout::getTypeAllocSize` > is returning `12`. `getStructLayout` also gives an `4` offset for the > second

What exactly is your alignment settings in your LLVM struct? Something like this would tell you the alignment of "something". const llvm::DataLayout dl(theModule); size_t size = dl.getPrefTypeAlignment(something); IIn "my" compiler, I don't do anything special to align structs, so it's plausibly your specific data-layout that says that i64 only needs aligning to

I'm encountering a few problems in my migration that I haven't yet figured out. `getOrInsertFunction` is generating a SEGFAULT at FunctionType::isValidArgumentType(llvm::Type*).  I'm calling it as:     generic_ptr_ = llvm::PointerType::get( llvm::Type::getInt8Ty(context), 0 );     f_natural_int = llvm::IntegerType::get(context, 64);     module->getOrInsertFunction(        

I'm having issues of my compiler, and JIT execution, of LLVM IR being rather slow. It's accounting for the vast majority of my full compilation time.  I'm trying to figure out why this is happening, since it's becoming an impediment.  (Note: by slow I mean about 3s of time for only about 2K of my front-end code, 65K lines of LLVM-IR) Using valgrind I see some functions which seem

I don't know if I'm setting the triple of my execution engine correctly.  This is leading to an issue where a struct `{i8,i64}` is not getting the same layout as the ABI expects. I setup my engine/module like this:      llvm::SmallVector<std::string,2> mattrs;      llvm::EngineBuilder builder{ unique_ptr<llvm::Module>(module) };      llvm::ExecutionEngine * ee = builder.    

Hi edaqa, You might need to set your TargetOptions before calling selectTarget. E.g. builder.setTargetOptions(Opts).selectTarget(...); Or you could just let EngineBuilder call selectTarget for you (which is what the no-argument version of EngineBuilder::create does): llvm::ExecutionEngine * ee = builder. setErrorStr( &errStr ). setEngineKind( llvm::EngineKind::JIT ).

On 05/05/18 17:58, Andres Freund wrote: > You're building LLVM with assertions enabled > (-DLLVM_ENABLE_ASSERTIONS=ON). > Some of those are fairly expensive... > Is there another way to get LLVM to check the correctness of my IR without the assertions? That's what I'm assuming I need the flag for (it's been a long time since I experimented with it) If there is no way

Hi, Could you share how you compile IR and which version of JIT you use (Orc, MCJIT)? Could it be that you are using interpreter instead of actual JIT? Cheers, Alex. > On 5. May 2018, at 08:04, edA-qa mort-ora-y via llvm-dev <llvm-dev at lists.llvm.org> wrote: > > I'm having issues of my compiler, and JIT execution, of LLVM IR being > rather slow. It's accounting for

Yes, but why is it even copying the memory?  It already has a pointer which it can cast and load from -- and does so in other scenarios. I'm wondering whether this copying is somehow required and I'm missing something, or it's just an artifact of the clang emitter. That is, could it not omit the memcpy and cast the original variable? On 18/04/18 19:43, Krzysztof Parzyszek via

I'm rather new to Wine, and I'm trying to run a Java Swing application. I'm having trouble with it. Has anyone else gotten Swing-based apps to run? I have a test case, basically a swing "hello world" app, and I haven't been able to get it to work either. Here's what happens when I try to compile it: [dritch@twitch wine]$ wine -- c:/jdk1.3/bin/javac -g -d

Taking one step back, I'm not clear I'm even setting the triple/DataLayout on the module correctly:     module = new llvm::Module( "test", *llvm_context );     module->setTargetTriple( platform::target->triple ); Is that enough to create an appropriate DataLayout for the module?  I don't see anyway to convert a triple to a DataLayout, so I can't call

I believe the memcpy is there just as a consequence of Clang's design - different parts of the compiler own different pieces of this, so in some sense one hand doesn't see what the other is doing. Part of it is "create an argument" (memcpying the local variable into an unnamed value) and then the next part is "oh, but that argument gets passed in registers, so decompose it

I'm implementing function arguments and tested this code in C:     // clang -emit-llvm ll_struct_arg.c -S -o /dev/tty     typedef struct vpt_data {         char a;         int b;         float c;     } vpt_data;         void vpt_test( vpt_data vd ) {     }     int main() {         vpt_data v;         vpt_test(v);     } This emits an odd LLVM structure that casts to the desired struct type,

There appears to be a difference between passing by value:     call void @foo(%some_struct %v) And using the `byval` attribute on a pointer:     call void @foo(%some_struct* byval %v) They are not compatible with each other yet logically do the same thing.  The second form is the one that appears to work with the ABI on linux, and the first one not. What is the reason for the difference? --

.PLS files should work for iOS devices. See sample text: [playlist] numberofentries=1 File1=http://91.121.91.172:31090/LG73 Title1=LG73 Vancouver's Best Music Mix! Length1=-1 Version=2 On Wed, Jan 20, 2016 at 1:27 PM, Holden Stanford <hstanford1 at gmail.com> wrote: > You can create a .m3u or .mp3 container linking to the stream URL. I can't > remember the exact tags

I understand it's passing by value, that's what I'm testing here. The question is why does it copy the data rather than just casting and loading values from the original variable (%v) ?  It seems like the copying is unnecessary. Not all struct's result in the copy, only certain forms -- others are just cast directly as I was expecting. I'm just not clear on what the

ok, tried it out... passes test/test_seeking.sh and my "xmms twitch" test, checked in to CVS. thanks! Josh --- Miroslav Lichvar <lichvarm@phoenix.inf.upol.cz> wrote: > On Fri, Nov 03, 2006 at 10:01:42AM +0100, Miroslav Lichvar wrote: > > Thanks. Sending latest version of the patch. Now it can seek in > files > > that have large id3 tag (or any random data) at