similar to: [LLVMdev] could you give me some advice ?

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

lizhuo,您好！ 不是很明白你的意思，好像你想从一个ConstantExpr::getPtrPtrFromArrayPtr 指针得到这个ConstantExpr 的内容， 但你的困难在哪里？ ======= 2006-03-25 22:04:14 您在来信中写道：======= >hi >I have one llvm program like this : >.. >; define ConstantArray >"E1$str" = internal constant [3 x sbyte] c"E1\00" > >; use getPtrPtrFromArrayPtr to define SByte* from ConstantArray

hi I have one llvm program like this : ... ; define ConstantArray "E1$str" = internal constant [3 x sbyte] c"E1\00" ; use getPtrPtrFromArrayPtr to define SByte* from ConstantArray "E1$entry" = internal constant sbyte* getelementptr ([3 x sbyte]* "E1$str", uint 0, uint 0) ... when i want to get std::string object from this declaration in

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*>

>Right. This looks like it's just a simple bug in llvm2cpp. >CppWriter.cpp:698 contains: > > if (CA->isString() && CA->getType()->getElementType() == >Type::SByteTy) { > Out << "Constant* " << constName << " = ConstantArray::get(\""; > printEscapedString(CA->getAsString()); > //

Ok, I think I figured it out. I talked to someone, and we figured out that when I make a call to printf with a constant string, I need to make a global variable and use getElementPtr to reference it. The modified call for accessing the printf is: /* m is Module*, f is Function*, i is Instruction* */ Constant* constStr = ConstantArray::get("test\n"); GlobalVariable* gv =

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 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

Thanks for your reply. After I change Cstr to gI, it compiled successfully. Thanks again. Another question is for constructing getelementpt. // C code char gStrA[10] = "test str"; // here is Global variable,gStrA and initializer "test str" char gStrB[10]= "test str2"; main(){ int = i; char *pGVars[20]; // here, the pGVar is for storing the address of each

I am writing a pass where I need to make a function deceleration for printf. Below is the code I'm trying to use. ----- bool MyPass::runOnModule(Module &m) { vector<const Type*> args; args.push_back(PointerType::get(Type::SByteTy)); Function* f = m.getOrInsertFunction("printf", FunctionType::get(Type::IntTy, args, true)); ----- When I insert a call

I'm trying to insert a call to fprintf(stderr, ...). I've looked at the emitted assembly from llvm-gcc, and it consists of a LoadInst (of stderr) and CallInst. It looks like this: %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %tmp.1 = load %struct._IO_FILE** %stderr ; ty=%struct._IO_FILE* %tmp.0 = call int (%struct._IO_FILE*, sbyte*, ...)* %fprintf(%struct._IO_FILE* %tmp.1, sbyte*

Hello, I'm working on porting a project to LLVM 3.1. Unfortunately, my project makes very heavy use of ContantArray::getAsString() -- which was removed in LLVM 3.1. Is there an equivalent in 3.1? In other words, what is the best way to get the value of a string that was stored in a ConstantArray? Thanks, David -------------- next part -------------- An HTML attachment was scrubbed...

Hello there I'm trying to compile llvm-gcc, but the compilation fails. This is due to the fact that the ConstantArray class does no longer have the getAsString method. It has been actually removed on Jan 31 (commit 6a89228faca4b30c4abc29b5dec98bdac011ea4c). Is there a patch for llvm-gcc which overcomes this problem? I've just svn-updated my working copy but it didn't change

Hi Giovanni, > I'm trying to compile llvm-gcc, but the compilation fails. This is due to > the fact that the ConstantArray class does no longer have the getAsString > method. llvm-gcc is dead. Please use dragonegg (which is analogous to llvm-gcc, but for gcc-4.5/gcc-4.6) or clang instead. Ciao, Duncan.

Hi, Sorry for bothering you guys again. I got problem when I am trying to recover the Global Variable Initial value. What I did is like the following ConstantArray *Cstr = dyn_cast<ConstantArray>(gI->getInitializer()); // the above instruction enable me to get the content of initial string of global variable, like char a[10] ="test global"; And then I make some change for

Hi, In llvm 3.0 llvm::ConstantArray had a ::getAsCString() method that returned the buffer as a std::string. Now it seems that 3.1 this method dissapeared. I found that llvm::ConstantDataArray has a method called getAsString(), but it returns a Constant*. What is the safe way to retrieve the pointer of the Constant array as a C string?

Hi, > On Mon, 27 Sep 2004, Zhang Qiuyu wrote: > > > Is there a way to modify the string such as char a or char b? Could I > > use the way like "Replace an instruction with another Value" in Programm > > Manual? In fact, what I am interested in is string with visible > > expression, not all string, and I am trying to hide the orignal string > > by

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

On 16 November 2012 13:55, charles quarra <charllsnotieneningunputocorreo at gmail.com> wrote: > In llvm 3.0 llvm::ConstantArray had a ::getAsCString() method that > returned the buffer as a std::string. Now it seems that 3.1 this > method dissapeared. > > I found that llvm::ConstantDataArray has a method called > getAsString(), but it returns a Constant*. In 3.1