similar to: [LLVMdev] string to value

I hope this is the correct forum in which to ask this question. Currently I am writing code meant to compile with LLVM 3.0. I am trying to figure out, using the C++ API, how to create a constant static struct, or the equivalent. Since I am copying data from existing C structs, I am currently I am using a ConstantArray global variable, and then pointer casting it to the appropriate type when I

Hi Javier, > I found saw some strange behavior (to me) when converting constant > arrays to strings. Consider the following example: > > std::string Text = "HelloWorld"; > > unsigned TextLengthBefore = Text.length(); > > ConstantArray *pArray = > dyn_cast<ConstantArray>(llvm::ConstantArray::get(pModule->getContext(), > Text, true)); from

Hi, I haven't seen a response and I'm curious if I should submit a patch for this. Thanks, Javier From: llvmdev-bounces at cs.uiuc.edu [mailto:llvmdev-bounces at cs.uiuc.edu] On Behalf Of Martinez, Javier E Sent: Friday, July 16, 2010 3:20 PM To: llvmdev at cs.uiuc.edu Subject: [LLVMdev] Strange behavior when converting arrays to strings Hello, I found saw some strange behavior (to

Hello, I found saw some strange behavior (to me) when converting constant arrays to strings. Consider the following example: std::string Text = "HelloWorld"; unsigned TextLengthBefore = Text.length(); ConstantArray *pArray = dyn_cast<ConstantArray>(llvm::ConstantArray::get(pModule->getContext(), Text, true)); unsigned NumElements = pArray->getNumOperands(); Text =

Hi Michael, > I hope this is the correct forum in which to ask this question. > > Currently I am writing code meant to compile with LLVM 3.0. I am trying > to figure out, using the C++ API, how to create a constant static > struct, or the equivalent. Since I am copying data from existing C > structs, I am currently I am using a ConstantArray global variable, and > then

I am trying to create such module with API (it's equivalent to c++: const char* ss[] = {"s1","s2"};): @ss = global [2 x i8*] [i8* getelementptr inbounds ([3 x i8]* @.str1, i32 0, i32 0), i8* getelementptr inbounds ([3 x i8]* @.str2, i32 0, i32 0)] ; <[2 x i8*]*> [#uses=0] @.str1 = private constant [3 x i8] c"s1\00", align 1 ; <[3 x i8]*> [#uses=1]

> On 2015-Jun-02, at 12:37, Yuri <yuri at rawbw.com> wrote: > > On 06/01/2015 11:43, Duncan P. N. Exon Smith wrote: >> You can round-trip to bitcode, reading the module into the >> destination context. The following pseudo-code gives the idea: >> >> bool linkModuleFromDifferentContext(Module &D, const Module &S) { >>

Hi, I'm trying to replace function call with call to wrapper(function_name, num_args, ...), where varargs hold args of original call. Function* launch = Function::Create( TypeBuilder<int(const char*, int, ...), false>::get(context), GlobalValue::ExternalLinkage, "kernelgen_launch_", m2); { CallInst* call = dyn_cast<CallInst>(cast<Value>(I)); if

Hey Duncan, Thanks! I figured out this piece of code finally: Value *gep = call->getArgOperand(0); if ( ConstantExpr *pCE = dyn_cast<ConstantExpr>(gep) ) { Value *firstop = pCE->getOperand(0); if (GlobalVariable *GV = dyn_cast<GlobalVariable>(firstop)){ Constant *v = GV->getInitializer(); if

Evening, I was writing some code that tried to insert calls to the llvm.annotation intrinsic function, which has a signature of (i32, i8*, i8*, i32). The code is below. void addAnnotation( BasicBlock *block, Function *F) { string foo = "foo"; string bar = "barr"; Type *charTy = Type::getInt8Ty(block->getContext()); ArrayType *s1Ty =

Hi Welson, > Yes, it is a ConstantExpr! Thank you! > > Now trying to find a clue in ConstantExpr's functions to get that string :-) you can get the pointer operand by doing: getOperand(0) The i'th index is getOperand(i+1). Ciao, Duncan. > > Regards, > Welson > > On Thu, Jan 26, 2012 at 9:04 PM, Duncan Sands <baldrick at free.fr > <mailto:baldrick at

I'm a bit confused. For the Type did you mean something like: ArrayType *type = ArrayType::get(Type::getInt8PtrTy(M.getContext()), 4); This does not work, it gives me ""Wrong type in array element initializer" at runtime. Also it doesn't look like ConstantExpr inherits ConstantArray, so I'm not sure how I could use this instead. Thanks On Thu, Oct 20, 2011 at

I'm trying to create a ConstantArray(whose contents will be of types Function*, GlobalVariable *) so I can immediately create a new GlobalVariable(that will be in its own section). I'm doing this so I have these address stored. In order to create this ConstantArray I need a valid ArrayType, but I'm not sure what to use for the element type. I want this to be done at compile time, so I

Hi Dimitry, This makes sense if you think about it from the perspective that the string you want passing must be passed at runtime, and so can't use a const char * from compile time. You need to make the string visible in the compiled image, and use that as the argument. A string is an array of 8-bit integers, so you need to create a ConstantArray. Value *v = ConstantArray::get(Context,

excuse me for bother you again . a little supplement Constant* c = findValue(m,"E1$entry"); Constant* c2 = findValue(m,"E1$str"); I can get string object from c2 string s = cast<ConstantArray>(c2)->getAsString(); but it is not applicable for c string s= cast<ConstantArray>(c)->getAsString(); // Assert Fail because c is ConstantExpr::GetElementPtr

Andrew Ruef wrote: > Evening, > > I was writing some code that tried to insert calls to the > llvm.annotation intrinsic function, which has a signature of (i32, > i8*, i8*, i32). The code is below. > > void addAnnotation( BasicBlock *block, Function *F) > { > string foo = "foo"; > string bar = "barr"; > > Type

Hi all; I have been trying to use the llvm::ConstantArray::get(llvm::LLVMContext&, llvm::StringRef, bool) function but seems it has been deprecated. ProfileDependence.cpp:68:73: error: no matching function for call to ‘llvm::ConstantArray::get(llvm::LLVMContext&, llvm::StringRef, bool)’ ProfileDependence.cpp:68:73: note: candidate is:

Hi all, Please i need help, I have a method that takes 2 arguments with type char *: void branchPredict(char *b1, char *b2){ --- -- } i'm supposed to add this method, in an IR basic bloc: to add it into a basic bloc i do: //i: is the basic bloc std::vector<Value*> void_43_params; Constant* tbname = ConstantArray::get(M.getContext(),i->getNameStr() , true); Constant* pbname =

On 10/20/11 11:34 AM, ret val wrote: > I'm a bit confused. For the Type did you mean something like: > ArrayType *type = ArrayType::get(Type::getInt8PtrTy(M.getContext()), 4); I assume that creates an ArrayType of 4 elements whose elements are pointers to 8-bit values. If so, then this is what I meant. > This does not work, it gives me ""Wrong type in array

On 10/20/11 10:43 AM, ret val wrote: > I'm trying to create a ConstantArray(whose contents will be of types > Function*, GlobalVariable *) so I can immediately create a new > GlobalVariable(that will be in its own section). I'm doing this so I > have these address stored. In order to create this ConstantArray I > need a valid ArrayType, but I'm not sure what to use for