similar to: [LLVMdev] Using isa with derived types

Zappel-Phillip wrote: > Hello, > > I am writing an optimization pass which optimizes code based on an online > pointer analysis algorithm and need to detect pointers which are pointing to > derived types. I have not had any problem identifying pointers in general > using isa<PointerType>(...), but I can't seem to figure out how I can make > sure that the pointer is

I believe I failed to ask the question properly, I am not trying to determine whether the elements of an array are scalar type. Instead, I want to be able to iterate over the function's parameters and determine whether a pointer argument is actually an array being passed which contains scalar values, or simply a pointer with a single scalar value. In other words, I want to ignore functions

The LLVM docs seem to indicate that integer types are considered primitive, however looking at the code I see `FirstDerivedTyID = IntegerTyID`, implying that integers are derived rather than primitive. Should the docs be updated? -------------- next part -------------- An HTML attachment was scrubbed... URL:

Hi, I am trying to process the typeID from a type as follows: Type *T; if(T->isTokenTy()){ std::cout << "Token Type"; } /home/shehbaz/courses/ece1781/project/fslice/plugin/FSlice.cpp:147:14: error: ‘class llvm::Type’ has no member named ‘isTokenTy’ else if(T->isTokenTy()) ^ I am successfully able to do this for all other 20-25 types mentioned here:

Hi LLVM, In lib/VMCare/Verifier.cpp::visitInstruction, we have such code 1287 // Check that the return value of the instruction is either void or a legal 1288 // value type. 1289 Assert1(I.getType() == Type::getVoidTy(I.getContext()) || 1290 I.getType()->isFirstClassType() 1291 || ((isa<CallInst>(I) || isa<InvokeInst>(I)) 1292 &&

Hello, I noticed a bit of a gap in the current code for unions: a ConstantUnion cannot be written out to .ll. Hopefully I'm not stepping on Talin's toes by posting this, it's a fairly straightforward adaptation of the code for structs just above. Tim. -- The University of Edinburgh is a charitable body, registered in Scotland, with registration number SC005336. --------------

Hi, I got a problem when I am trying to insert a call function with pointer arguments. The function C proto-type is the following, void stat_func(char *); >ConstantArray *Cstr = dyn_cast<ConstantArray>(gI->getInitializer()); ...... >Function *exFunc = M->getOrInsertFunction("stat_func", Type::VoidTy, PointerType::get(Type::SByteTy),0); >std::vector<Value*>

I think our test case demonstrates that requiring the array item being initialized to be constant is incorrect. NVPTX does not crash anymore and produces correct result with the following change: --- NVPTXAsmPrinter.cpp 2012-09-03 15:14:00.000000000 +0200 +++ NVPTXAsmPrinter.cpp 2012-09-04 15:47:17.859398193 +0200 @@ -1890,17 +1890,15 @@ case Type::ArrayTyID: case Type::VectorTyID: case

2009/10/20 Daniel Waterworth <da.waterworth at googlemail.com> > Hello, > > I'm wondering if it's possible to dereference a PointerType. I have an > AllocaInst and although I can find the number of elements allocated, (using > Instruction::getOperand(0)), I can't find a way to get the size of each > element. What I'd like to do is: > > AllocaInst

Hello, I'm wondering if it's possible to dereference a PointerType. I have an AllocaInst and although I can find the number of elements allocated, (using Instruction::getOperand(0)), I can't find a way to get the size of each element. What I'd like to do is: AllocaInst *alloca; PointerType *ptr_type = dynamic_cast<PointerType*>(alloca); assert(ptr_type); Type

Dear Reid and Chris, I thought I should send this to the list in case anyone else is struggling to interpret bytecode files with the new docs. (1) First a bug I already mentioned to Reid. Unlike the other new module headers module 0x01 still uses the old 32-bit and 32-bit format instead of the new 5-bit and 27-bit format. Thus the first module in the file will be 0x00000001 followed by

Hello, I was wondering how you can identify whether or not an Argument is a pointer. The "isDereferenceablePointer" function for Values doesn't seem to be what I want (I don't care whether or not the pointer points to allocated memory or is suitably aligned). I want to be able to discern between: i32* %pArray and i32 %pArray Thanks in advance. - John

On 09/04/2012 09:57 AM, Dmitry N. Mikushin wrote: > I think our test case demonstrates that requiring the array item being > initialized to be constant is incorrect. NVPTX does not crash anymore > and produces correct result with the following change: > > --- NVPTXAsmPrinter.cpp 2012-09-03 15:14:00.000000000 +0200 > +++ NVPTXAsmPrinter.cpp 2012-09-04 15:47:17.859398193 +0200 >

Here is the bulk of the sanitizing. My residual doubts center around the question whether we still do/want to support (un)compressed *byte*code in 2.0/2.1. I need a definitive word on this to proceed. My understanding is that bytecode is already gone, but there are still some functions/enums that really deal with *byte*code (instead of *bit*code). I did not touch those areas, so the attached

NVCC successfully handles the same IR, if we try to process the same .cu file with clang+nvptx and nvcc: CLANG/NVPTX: ============= $ cat dayofweek.cu __attribute__((device)) char yweek[7][4] = { "MON", "TUE", "WED", "THU", "FRI", "SAT", "SUN" }; $ clang -cc1 -emit-llvm -fcuda-is-device dayofweek.cu -o dayofweek.ll $ cat

Hi All, I've noticed the union type in the language manual [1] but it seems it's not used too much. According to the manual, the code: union { int a; double b; } a; Could be compiled to: %union.anon = type union { i32, double } @a = common global %union.anon zeroinitializer, align 8 ; <%union.anon*> [#uses=0] But when I try to assemble it, I get: $ llvm-as union.ll

Dear all, Looks like the NVPTX backend cannot handle array-of-arrays contant (please see the reporocase below). Is it supposed to work? Any ideas how to get it working? Important for our target applications. Thanks, - Dima. $ cat test.ll ; ModuleID = '__kernelgen_main_module' target datalayout =

Thanks Duncan, Yes, it is a ConstantExpr! Thank you! Now trying to find a clue in ConstantExpr's functions to get that string :-) Regards, Welson On Thu, Jan 26, 2012 at 9:04 PM, Duncan Sands <baldrick at free.fr> wrote: > Hi Welson Sun, > > > Hi, if I have some LLVM code like this: > > > > @.str = private unnamed_addr constant [7 x i8]

Hi all, We're hitting some walls here when generating the correct structure layout for specific C++ ABI requirements, and I was wondering how much StructLayout could help. For instance, the ABI has some complicated rules on the size of derived classes (http://www.codesourcery.com/public/cxx-abi/abi.html#class-types) and LLVM struct type cannot reflect that in full. Example: // CHECK:

On Mon, Mar 15, 2010 at 11:51:47AM +0000, Tim Northover wrote: > Hello, > > I noticed a bit of a gap in the current code for unions: a > ConstantUnion cannot be written out to .ll. I've been continuing plugging gaps as I find them, which might not be the best way to solve this problem, but it has produced something that seems to do roughly what I expect. I've split it into