search for: idx_begin

Hi Michael, Thank you very much. But idx_begin/idx_end iterators can only be used through a getelementptr instruction, right? However, I think value "i32* getelementptr inbounds (%struct.Args* @globalArg, i64 0, i32 2)" itself is not a getelementptr instruction, so? Or could you tell me how can I get a getelementptr instruction first...

...Thanks, > -- Sanjoy > > [1]: > http://llvm.org/docs/doxygen/html/classllvm_1_1GetElementPtrConstantExpr.html > > On Sat, Nov 22, 2014 at 1:10 AM, Qiuping Yi <yiqiuping at gmail.com> wrote: > > Hi Michael, > > > > Thank you very much. > > > > But idx_begin/idx_end iterators can only be used through a getelementptr > > instruction, right? However, I think value "i32* getelementptr inbounds > > (%struct.Args* @globalArg, i64 0, i32 2)" itself is not a getelementptr > > instruction, so? Or could you tell me how can I get a ge...

Ok. Let's say I have a GetElementPtrInst that is used to access structure elements. In this case the indexes will be constants and I want to get the constant values as an a native C int. Now I can iterate over all the indexes with idx_begin(). I can cast all of the indexes to a ConstantIntegral. However, I cannot cast the indexes to a ConstantSInt or ConstantUInt (cast<> throws an assertion) and these two classes are the ones that have the getValue() method I need. Am I missing something here? Wojciech

...op collects pairs of subscripts from the source and destination refs. * // Collect GEP operand pairs (FIXME: use GetGEPOperands from BasicAA), adding* * // trailing zeroes to the smaller GEP, if needed.* * GEPOpdsTy destOpds, srcOpds;* * for(GEPOperator::const_op_iterator destIdx = destGEP->idx_begin(),* * destEnd = destGEP->idx_end(),* * srcIdx = srcGEP->idx_begin(),* * srcEnd = srcGEP->idx_end();* * destIdx != destEnd && srcIdx != srcEnd;* * destIdx += (destId...

Hi, all I am a LLVM user. I want to get every element in the next instruction: %0 = load i32* getelementptr inbounds (%struct.Args* @globalArg, i64 0, i32 2), align 4, !dbg !85, !clap !86 Now I can only get value "i32* getelementptr inbounds (%struct.Args* @globalArg, i64 0, i32 2)" through "getOperand(0)", but I can not get "%struct.Args* @globalArg", "i64

...ojciech Stryjewski: > } Ok. Let's say I have a GetElementPtrInst that is used to access > structure > } elements. In this case the indexes will be constants and I want > to get the > } constant values as an a native C int. > } > } Now I can iterate over all the indexes with idx_begin(). I can cast > } all of the indexes to a ConstantIntegral. However, I cannot cast the > } indexes to a ConstantSInt or ConstantUInt (cast<> throws an > assertion) and > } these two classes are the ones that have the getValue() method I need. > } > } Am I missing something h...

Hi, Here is a preliminary (monolithic) version you can comment on. This is still buggy, however, and I'll be testing for and fixing bugs over the next few days. I've used your version of the strong siv test. Thanks! -- Sanjoy Das. http://playingwithpointers.com -------------- next part -------------- A non-text attachment was scrubbed... Name: patch.diff Type: application/octet-stream

...Value* const *Idx, unsigned NumIdx); + + static const Type *getIndexedType(const Type *Ptr, + uint64_t const *Idx, unsigned NumIdx); + static const Type *getIndexedType(const Type *Ptr, Value *Idx); inline op_iterator idx_begin() { return op_begin()+1; } -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 189 bytes Desc: Digital signature URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20080723/deee3d06/attachment.sig&g...

On Jul 22, 2008, at 11:54 PM, Matthijs Kooijman wrote: > Hi Chris, > > >> I'd prefer to not turn this into a template. Why not just define a >> version that takes an array of uint64_t's or something like that? > because I want to be able to pass in iterators. I could define a > version that > takes std<uint64_t>::iterators, but next thing we know, we

I wrote some program using DensMap like this: =============================== SmallDenseMap<Value*, StringRef, 4> OpResult; Value *VP = GEP->getPointerOperand(); OpResult[VP] = parseVariable(VP); for(User::op_iterator sId = GEP->idx_begin(), eId = GEP->idx_end(); sId != eId; ++sId) { Value *VI = *sId; if(dyn_cast<ConstantInt>(*sId)) OpResult[VI] = parseConstant(VI); else OpResult[VI] = parseVariable(VI); } .... =============================== When I visit OpResult like this: ==================...

Also sprach Wojciech Stryjewski: } Ok. Let's say I have a GetElementPtrInst that is used to access structure } elements. In this case the indexes will be constants and I want to get the } constant values as an a native C int. } } Now I can iterate over all the indexes with idx_begin(). I can cast } all of the indexes to a ConstantIntegral. However, I cannot cast the } indexes to a ConstantSInt or ConstantUInt (cast<> throws an assertion) and } these two classes are the ones that have the getValue() method I need. } } Am I missing something here? } I'm not quite sur...

...GetElementPtrInst *GEP = NULL; + // Create a new instruction + if (isa<StoreInst>(*I)) + NewInst = new StoreInst(I->getOperand(0), NewVal); + else if ((GEP = dyn_cast<GetElementPtrInst>(*I))) { + // Insert a new GEP + std::vector<Value*> Indices(GEP->idx_begin(), GEP->idx_end()); + NewInst = GetElementPtrInst::Create(NewVal, Indices.begin(), Indices.end()); + } else // Must be LoadInst + NewInst = new LoadInst(NewVal); + + // Replace the old instruction + InsertNewInstBefore(NewInst, *OldInst); + NewInst->takeName(OldInst)...

...errs() << *inst << "\n";* * if (StoreInst *SI = dyn_cast<StoreInst>(inst)) {* * Value *operand = SI->getPointerOperand();* * if (const GEPOperator *GEP = dyn_cast<GEPOperator>(operand)) {* * for (GEPOperator::const_op_iterator idx = GEP->idx_begin(),* * end = GEP->idx_end();* * idx != end;** idx += 1) {* * const SCEV *scev = SE->getSCEV(*idx);* * errs() << *scev << "\n";* * }* * }* * }* * }* * return false;* } Basically, it...

...; > + // Create a new instruction > + if (isa<StoreInst>(*I)) > + NewInst = new StoreInst(I->getOperand(0), NewVal); > + else if ((GEP = dyn_cast<GetElementPtrInst>(*I))) { > + // Insert a new GEP > + std::vector<Value*> Indices(GEP->idx_begin(), GEP->idx_end()); > + NewInst = GetElementPtrInst::Create(NewVal, Indices.begin(), > Indices.end()); > + } else // Must be LoadInst > + NewInst = new LoadInst(NewVal); > + > + // Replace the old instruction > + InsertNewInstBefore(NewInst, *OldInst); &...

Hi Eli, Mon Ping, > In ISO/IEC WG14 n1169 on the C extensions to support embedded > processors, any two address spaces must be disjoint, must be > equivalent, or must be nested. Ah, that standard is a lot clearer on this subject than the DSP-C one I read was. > As Eli indicated, the actual relationship is platform specific depending on > what makes the most sense for

In ISO/IEC WG14 n1169 on the C extensions to support embedded processors, any two address spaces must be disjoint, must be equivalent, or must be nested. As Eli indicated, the actual relationship is platform specific depending on what makes the most sense for your hardware and how the program will behave will depend on that relationship. -- Mon Ping On Jul 17, 2008, at 7:25 AM, Eli