search for: constantarray

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 actually , not ConstantArray so I have to get string object like this : GlobalVariable* gv = cast<GlobalVariable>(c-...

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: /home/arnie...

...d /home/vadve/simmon12/llvm/llvm/projects/llvm-poolalloc/Debug/lib/libLLVMDataStructure.so -load /home/vadve/simmon12/llvm/llvm/projects/llvm-poolalloc/Debug/lib/poolalloc.so -poolalloc hello.bc > hello.pool 0 opt 0x08469ccb 1 libLLVMDataStructure.so 0x0022f5a4 llvm::ConstantArray::classof(llvm::Value const*) + 30 2 libLLVMDataStructure.so 0x0022f57a bool llvm::isa_impl<llvm::ConstantArray, llvm::Constant>(llvm::Constant const&) + 30 3 libLLVMDataStructure.so 0x0022e942 llvm::isa_impl_wrap<llvm::ConstantArray, llvm::Constant const, llvm::Constant const&g...

Hi, I’m currently writing a LLVM pass and would like to modify a constant array based on some basic analysis. Is there any way to simply remove entries (`llvm::Constant`) from an array (`llvm::ConstantArray`)? Replacing all uses with an undefined value doesn’t work as the array is terminated by an undefined value, subsequent elements thus are ignored at runtime. I’d rather avoid re-creating the entire array from scratch and replace the existing array with it but I’m afraid there’s not many other optio...

...#39;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 12:04 PM, John Criswell <criswell at illinois.edu> wrote: > On 10/20/11 10:43 AM, ret val wrote: >> >> I'm trying to create a ConstantArray(whose contents will be of types >> Function*...

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...

Hi all. Is it allowed to modify ConstantArray object within setOperand method, or it is better to leave old ConstantArray object and create new one? Thanks! -Stepan.

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 = pArray->getAsString(); unsigned TextLengthAfter = Text.length(); After running this example here are the values in each varia...

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 Constants.h: /// This method constructs a ConstantArray and initializes it with a text /// string. The default behavior (AddNull==true) causes a null terminator to ///...

...ume 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 element > initializer" at runtime. > > Also it doesn't look like ConstantExpr inherits ConstantArray, so I'm > not sure how I could use this instead. What I meant here is that each element (Function *, GlobalVariable *) that you want to put into the ConstantArray will need to be casted to an i8 * type. To do the casting, you will need to use a bitcast ConstantExpr instead of a BitCastI...

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...

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 anything. Regards -- G...

...s.uiuc.edu Subject: [LLVMdev] Strange behavior when converting arrays to strings 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 = pArray->getAsString(); unsigned TextLengthAfter = Text.length(); After running this example here are the values in each varia...

Hello, I need to append something to the global "llvm.global_ctors". This variable may or may not already be declared within the current module. If I lookup the global variable, I see that it supports a getOperand(i) and setOperand(i,c), but does not support any way that I can enlarge that array to add a new record. Any suggestions? -- Nick Johnson

...may or may not already be declared within the current module. > > If I lookup the global variable, I see that it supports a > getOperand(i) and setOperand(i,c), but does not support any way that I > can enlarge that array to add a new record. Hi Nick, You actually have to create a new ConstantArray with the desired elements, then remove the existing llvm.global_ctors constand and create a new one to replace it. Take a look at the GlobalOpt pass for examples of how to do this sort of thing. -Chris

Thanks, Just one question more: why does Constant::getVectorElements() operate on a SmallVector<T>, while ConstantArray::get() operate on a std::vector<T> ? What is the distinction between these uses? Thanks! Nick On Tue, Mar 31, 2009 at 7:49 PM, Chris Lattner <clattner at apple.com> wrote: > > On Mar 31, 2009, at 4:42 PM, Nick Johnson wrote: > >> Hello, >> >> I need to app...

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...

...0)] ; <[2 x i8*]*> [#uses=0] @.str1 = private constant [3 x i8] c"s1\00", align 1 ; <[3 x i8]*> [#uses=1] @.str2 = private constant [3 x i8] c"s2\00", align 1 ; <[3 x i8]*> [#uses=1] Code below doesn't compile because to initialize GlobalVariable I need ConstantArray*, ConstantArray::get requires vector<Constant*>, but getelementptr is an instruction and it's not Constant*, but Value*. What is the correct way to create such module? It's really tye Yuri --- c++ code --- #include "llvm/LLVMContext.h" #include "llvm/Module.h"...

...is 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 use it, but this seems overly clunky. Constant *cip = ConstantArray::get( ctx(), StringRef((char *)&addr_, sizeof(addr_)), false); return new GlobalVariable( *mod(), cip->getType(), true,...

...lvm/projects/llvm-poolalloc/Debug/lib/libLLVMDataStructure.so > -load > /home/vadve/simmon12/llvm/llvm/projects/llvm-poolalloc/Debug/lib/poolalloc.so > -poolalloc hello.bc > hello.pool > 0 opt 0x08469ccb > 1 libLLVMDataStructure.so 0x0022f5a4 > llvm::ConstantArray::classof(llvm::Value const*) + 30 > 2 libLLVMDataStructure.so 0x0022f57a bool > llvm::isa_impl<llvm::ConstantArray, llvm::Constant>(llvm::Constant > const&) + 30 > 3 libLLVMDataStructure.so 0x0022e942 > llvm::isa_impl_wrap<llvm::ConstantArray, llvm::Constant const...