similar to: [LLVMdev] How does the debug info correspond to the normal info?

Hello Reid, Thanks. > Yes, it's an integral part of the Instruction. You can change it by > providing a name when you create the instruction. Following your hint, can I understand in this following way? The name (denoted by "<result>") is actually a referrer to the instruction . Consider this instruction: %this_addr = alloca %struct.String* ;

Hey, Considering the following instruction: %20 = load %struct.Node** getelementptr inbounds (%struct.Node* @head, i32 0, i32 0), align 16 ; <%struct.Node*> [#uses=1] What is the type of the first operand of the instruction (i.e., getOperand(0))? I thought the operand is a "GetElementPtr" instruction, however, the predicate "isa<Instruction>()" over

Hi all, In the language specifications, many instructions have this form: <result> = ... So, where is "<result>" defined? Is it an integral part of an instruction? Consider the "getelementptr" instruction: <result> = getelementptr <pty>* <ptrval>{, <ty> <idx>}* How is the "<result>" represented? Best,

Good evening, Tang. > What is the type of the first operand of the instruction (i.e., > getOperand(0))? It might be ConstantExpr. You may use dyn_cast<GEPOperator>(getPointerOperand()). Also GetElementPtrInst* can be casted to GEPOperator. ...Takumi 2010/6/18 Xiaolong Tang <xiaolong.snake at gmail.com>: > > Hey, > > Considering the following instruction: >

Yes, it's an integral part of the Instruction. You can change it by providing a name when you create the instruction. Reid On Thu, Jun 10, 2010 at 8:34 AM, Xiaolong Tang <xiaolong.snake at gmail.com> wrote: > Hi all, > > In the language specifications, many instructions have this form: > >  <result> = ... > > So, where is "<result>" defined?

On Thu, Jun 10, 2010 at 9:00 AM, Xiaolong Tang <xiaolong.snake at gmail.com> wrote: > > Hello Reid, > > Thanks. > >> Yes, it's an integral part of the Instruction.  You can change it by >> providing a name when you create the instruction. > > Following your hint, can I understand in this following way? > > The name (denoted by

Hi all, Considering the limit time I have for an implementation, I better ask for your inputs on a few questions. Any answer is to be much appreciated. First, how does LLVM handle the "new statement" of C++? Could any one give me any hint? Second, what properties does the callgraph generated by LLVM has? One property I am interesting in is whether the callgraph is a safe

Hey all, Just wondering if LLVM has any command options or tool to allow for demangling C++ names from the LLVM bitcode? Thanks! Best, Xiaolong

Hi Renato, > > Just wondering if LLVM has any command options or tool to allow for > > demangling C++ names from the LLVM bitcode? > > c++filt? Do you refer to any particular version of c++filt? I tried, but seemed not to work. For example, when I run a command as below: c++filt _ZNSt4listIiSaIiEEaSERKS1_ The output remains the same as the input symbol. By the way,

On 27 August 2010 18:56, Xiaolong Tang <xiaolong.snake at gmail.com> wrote: > Just wondering if LLVM has any command options or tool to allow for > demangling C++ names from the LLVM bitcode? c++filt? --renato

Guess I have found some clues. Some necessary libraries have to be loaded while trying to generate native code or do interpretation. Then another question emerges: Is there a way to determine the necessary libraries in need? And where to locate these necessary libraries? Xiaolong > Hi All, > > I have a program that uses C++ STL a lot. To have the source code for > STL functions, I

Hey all, My previous work was done mainly in the front-end of conceptgcc, whereas recently I am doing some code analysis in the middle-end of llvm. I am considering to port my previous work to llvm. So, I am very concerned with the difference between gcc and llvm-gcc, and of course the difference between gcc and conceptgcc. I have no idea of the former difference, though I have some idea of

Hey, I need to approximate the run-time objects of a program. It is up to the compiler's front-end to make the decision on how to translate the new-expressions in C++, however. This obfuscates the way to figure out dynamically allocated program points in the middle-end (e.g. LLVM). So I am wondering if there is any general way to do so? Does the front-end provide any hint(s) to the

Hi All, I have a program that uses C++ STL a lot. To have the source code for STL functions, I undefined "_GLIBCXX_EXTERN_TEMPLATE" in c++config.h. In spite of this, after compilation (via clang) and linking (via llvm-ld), the resulting bitcode contains a few declared functions (with no definitions). My question is: In the scenario where some function definitions are missing in a llvm

On Aug 27, 2010, at 11:43 AM, Xiaolong Tang wrote: > Hi Renato, > >>> Just wondering if LLVM has any command options or tool to allow for >>> demangling C++ names from the LLVM bitcode? >> >> c++filt? > > Do you refer to any particular version of c++filt? I tried, but seemed > not to work. For example, when I run a command as below: > >

Devang Patel wrote: > Hi Richard, > > How do you produce this LLVM assembly? In newest form, > llvm.dbg.func_start intrinsic is not used. > - > Devang > Hi Devang, The assembly is disassembled from bitcode that I create. I must be using obsolete remnants of the API. I'm calling EmitFunctionStart(), EmitStopPoint(), etc. What should I be using? -Rich

Devang Patel <devang.patel <at> gmail.com> writes: > > 2010/5/18 Zheng Wang <jason.wangz <at> gmail.com>: > > > > I found DebugInfo.cpp may be useful. Could you tell me which function > > I should call inorder to know the source file name and the line number > > for a particular instruction? > > > > See

Hi, I'm trying to use the new debug info and I seem to have broken something. The attached LLVM assembly is the result of compiling a simple main() function. If I generate x86 assembly language from this I get the attached assembly file. The debug info seems complete, except that the .Lfunc_begin symbol is referenced but not defined in the .s file. llvm-dis, llvm-as, and llc seem

2010/5/18 Zheng Wang <jason.wangz at gmail.com>: > > I found DebugInfo.cpp may be useful. Could you tell me which function > I should call inorder to know the source file name and the line number > for a particular instruction? > See http://llvm.org/docs/SourceLevelDebugging.html#ccxx_frontend At the end of "C/C++ source file information" section, there is a small

Thanks Duncan and Ashok, As Duncan described, "lli -load=libstdc++.dylib ..." works. I, however, encounted an "Illegal instruction" message, while I was trying to interpret a large program. So, does lli have a debug switch for dumping out the details for errors? Using llc is not that simple, and I have not gotten through the compilation process. For instance, "llc -o