similar to: [LLVMdev] GetElementPtrConstantExpr question

Because I need to convert an [4 x i8] type to i8* in the instantiation of a GlobalVariable. I have the follow declaration: %xxx = type { i8* } and I must emit the following variable: @yyy = linkonce_odr constant %xxx { [4 x i8] c"hello\00" }, but it's wrong. How do I do? 2012/12/18 Óscar Fuentes <ofv at wanadoo.es> > Alessio Giovanni Baroni <alessiogiovanni.baroni at

Hi to all, I need the class in object, but the file ConstantsContext,h isn't installed. What can I do? Copy that header under include? It's an installation bug? Thanks! -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20121218/e1130d0a/attachment.html>

Alessio Giovanni Baroni <alessiogiovanni.baroni at gmail.com> writes: > I need the class in object, but the file ConstantsContext,h isn't installed. > > What can I do? Copy that header under include? It's an installation bug? That's an internal header, not part of the public API. Why do you need the classes declared on that header?

Hi During a pass, the XCore target lowers thread local global variables by turning them into global variable arrays indexed by the (max 8) thread ID. (see XCoreLowerThreadLocal.cpp) This works fine for instructions e.g. GetElementPtrInst But can't be done for constants e.g. GetElementPtrConstantExpr Thus I would like to replace GetElementPtrConstantExpr with GetElementPtrInst when it is

Ok, now it's arising another problem. IR code that I obtain is the following: i8* bitcast ([5 x i8] c"hello\00" to i8*) generated from instructions: ConstantExpr::getBitCast (ConstantDataArray::getString (getGlobalContext (), "hello"), PointerType::get (Type::getInt8Ty (getGlobalContext ()), 0)) but the LLC tool says: invalid cast opcode for cast from '[5 x i8]'

On 19/12/12 10:25, Alessio Giovanni Baroni wrote: > Ok, now it's arising another problem. IR code that I obtain is the following: > > i8* bitcast ([5 x i8] c"hello\00" to i8*) You need to put your "hello" in a (constant) global variable. You can then bitcast the address of the global to i8*. I suggest you compile some C code that makes use of the address of a

Alessio Giovanni Baroni <alessiogiovanni.baroni at gmail.com> writes: > Because I need to convert an [4 x i8] type to i8* in the instantiation of a > GlobalVariable. > I have the follow declaration: %xxx = type { i8* } and I must emit the > following variable: > @yyy = linkonce_odr constant %xxx { [4 x i8] c"hello\00" }, but it's wrong. > > How do I do?

I notice that there's a lot of inconsistency in the various LLVM classes with respect to convenience methods. Here's some examples: For creating GEPS, IRBuilder has: CreateGEP (2 overloads) CreateInBoundsGEP (2 overloads) CreateConstGEP1_32 CreateConstInBoundsGEP1_32 CreateConstGEP2_32 CreateConstInBoundsGEP2_32 CreateConstGEP1_64 CreateConstInBoundsGEP1_64

Hi LLVMdev members I found something strange in ConstantExpr::replaceUsesOfWithOnConstant() function. in lib/VMCore/Constants.cpp file 2118 if (getOpcode() == Instruction::GetElementPtr) { 2119 SmallVector<Constant*, 8> Indices; 2120 Constant *Pointer = getOperand(0); 2121 Indices.reserve(getNumOperands()-1); 2122 if (Pointer == From) Pointer = To; 2123 2124 for

On Mon, Jan 31, 2011 at 10:57 PM, Talin <viridia at gmail.com> wrote: > I notice that there's a lot of inconsistency in the various LLVM classes > with respect to convenience methods. Here's some examples: > > For creating GEPS, IRBuilder has: > > CreateGEP (2 overloads) > CreateInBoundsGEP (2 overloads) > CreateConstGEP1_32 >

Talin wrote: > On Mon, Jan 31, 2011 at 10:57 PM, Talin <viridia at gmail.com > <mailto:viridia at gmail.com>> wrote: > > I notice that there's a lot of inconsistency in the various LLVM > classes with respect to convenience methods. Here's some examples: > > For creating GEPS, IRBuilder has: > > CreateGEP (2 overloads) >

Hmm... if I do a print() on the result of getFileName(), I get i8 * getelementptr ([9 x i8]* @.str, i32 0, i32 0) back, but if I try to dyn_cast this to GetElementPtrInst it fails (returning null), so presumably I'm seeing a GetElementPtrConstantExpr... so how can I get at that constant i8 array without casting to a GetElementPtrInst, and with GetElementPtrConstantExpr being

On Sat, Nov 22, 2014 at 11:09 AM, Sanjoy Das <sanjoy at playingwithpointers.com > wrote: > Hi Qiuping, > > If I'm reading the IR correctly, what you have is a > GetElementPtrConstantExpr [1]. It subclasses from llvm::Constant. > If you want the same code to handle GetElementPtrConstantExpr *and* GetElementPtrInst, you can use GEPOperator. > > Thanks, > --

Hi, I am trying to use some LLVM API in my C++ code, and I end up getting linker errors. I am working on Apple MacOSX Lion. Using g++ for the compile. It is the CreateGlobalStringPtr which is throwing the error. This is LLVM 3.0. Here's the codeI am trying to use some LLVM API in my C++ code, and I end up getting linker errors. I am working on Apple MacOSX Lion. Using g++ for the compile. It

Hello LLVMDev List, It's my first time sending a message to the List - I have been working on a tool for my research project using LLVM. Thanks for your awesome work! I have come across some bytecode like the following with an GetElementPtr instruction in brackets: Bytecode:%3 = call i32 @_Z4funcPKc(i8* getelementptr inbounds ([5 x i8]* @.str2, i32 0, i32 0)) C++ code:func("bleh");

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, Consider ConstantUniqueMap::getOrCreate() (in lib/VMCore/ConstantsContext.h): /// getOrCreate - Return the specified constant from the map, creating it if /// necessary. ConstantClass *getOrCreate(const TypeClass *Ty, ValRefType V) { MapKey Lookup(Ty, V); ConstantClass* Result = 0; ... For array (or struct or vector) constants, typically: ValType = vector<Constant*>

Probably your g++ compiles x86_64 binary by default, but i686 dylib is supplied? Try: g++ -m32 e.cpp /Developer/Platforms/iPhoneOS.platform/Developer/usr/llvm-gcc-4.2/libexec/gcc/i686-apple-darwin10/4.2.1/libllvmgcc.dylib - D. 2012/1/22 Arpan Sen <arpansen at gmail.com>: > Hi, > > I am trying to use some LLVM API in my C++ code, and I end up getting linker > errors. I am

Thanks Tim, I'll try to solve my problem ASAP, if I cannot maybe I'll some other clarifications. Thanks again On Sat, Mar 9, 2019, 06:03 Tim Northover <t.p.northover at gmail.com> wrote: > Hi Alberto, > > On Sat, 9 Mar 2019 at 05:50, Alberto Barbaro via llvm-dev > <llvm-dev at lists.llvm.org> wrote: > > i8* getelementptr inbounds ([7 x i8], [7 x i8]*

Hi, I've been struggling with constantexprs for a bit. I'm working on a pass that transforms global variables to local variables, and in particular the GetElementPtrConstantExpr is a bit troublesome. For my transformation to properly work, a global value should only be used by Instructions, not by ConstantExprs. I was thinking to add a ConstantExpr::replaceWithInstr() virtual method,