search for: pgvars

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2005 Feb 02
1
[LLVMdev] RE: Question about Global Variable
...ange 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 initializer, i.e. "test str" pGVars[0] = gStrA; pGVars[1] = gStrB; // change the content of gStrA for(i=0;i<5;i++){ pGVars[0][i] ^= 0x27; } } the following IR code is the loop part code which is co...
2015 May 17
2
[LLVMdev] copy value of a global's data field to another global
Hi all, I can get access to the data stored in globals as follows: GlobalVariable* pGvarAct=_set_a_valid_global_; const_ptr_indicesVec=_the_indexes_ llvm::Constant* pConst; pConst=ConstantExpr::getGetElementPtr(pGvarAct, const_ptr_indicesVec); and e.g. use this to repalece an argumrnt of an instruction like: I->setOperand(someArgumentIndex,pConst); However, getGetElementPtr returns a
2015 May 18
2
[LLVMdev] copy value of a global's data field to another global
getInitializer returns the complete initializer of the global. My globals are complex nested structs, from which I want to extract e.g. one double datafield. Example: >From a struct Stuct having double,array(3xint),float fields, I could extract the second int value using the index sequence 0,1,1 with getGetElementPtr. This gives me a constantPointer, but I would need to get a constInt...
2015 Jan 22
3
[LLVMdev] numeric limits of llvm Types?
Hi all, can I access the numeric limits of the llvm types, e.g. HalfTy, FloatTy, DoubleTy, etc. in a fashion like the std numeric_limits tool? std::numeric_limits<half>::min() std::numeric_limits<half>::max() In c++API, I want to initialize values and need to know the correct range for the llvm types.... Thx Alex