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llvm/include/llvm/Pass.h:93: llvm::Pass::Pass(llvm::PassKind, intptr_t): Assertion `pid && "pid cannot be 0"' failed. On Mon, Jan 31, 2011 at 3:55 PM, Surinder <surifilms at gmail.com> wrote: > I have written a new pass, it compiles ok but crashes when i run it > with error (llvm::Pass::Pass(llvm::PassKind, intptr_t): Assertion `pid > && "pid cannot be 0"' failed.). > > The pass is : > > using namespace llvm; > namesp...

I have written a new pass, it compiles ok but crashes when i run it with error (llvm::Pass::Pass(llvm::PassKind, intptr_t): Assertion `pid && "pid cannot be 0"' failed.). The pass is : using namespace llvm; namespace { struct Dfl : public FunctionPass { static char ID; Dfl() : FunctionPass(ID) { } virtual bool runOnFunction(Function &F) { bool

...automatic unique detection.  This would allow the use > of headers instead of having to manually copy and paste them into the source. >  What were you planning on doing with your LLVM parser, if I may ask? > > --Sam > > > ----- Original Message ---- >> From: Surinder <surifilms at gmail.com> >> To: llvmdev at cs.uiuc.edu >> Sent: Sun, January 23, 2011 10:35:38 PM >> Subject: [LLVMdev] LLVM grammar for ANTLR >> >> Has anyone written a grammar for LLVM for ANTLR.  I mean an  ANTLR >> grammar that parses LLVM instructions.  Is an LLVM g...

Hi Surinder, You'll need to dereference your iterator to get a pointer: const BasicBlock *p = *pr; Cheers, Lang. On Mon, Jan 31, 2011 at 3:04 PM, Surinder <surifilms at gmail.com> wrote: > I have a pointer to a basic block and am iterating thru its > predecessor blocks. I want to get a pointer to the predecessor block. > How do I do it. I am using following code and it given compile time > errors. > > error: cannot convert 'llvm::c...

Hi Surinder, Did you remember to #include "llvm/Analysis/Dominators.h"? Best, Douglas On Sun, Jan 30, 2011 at 11:24 PM, Surinder <surifilms at gmail.com> wrote: > I am creating a new pass (function pass) called Dfl from the Hello > example and notes on "Writing an LLVM Pass". When I compile the > program I get inncomplete type error (llvm/include/llvm/Pass.h:188: > error: incomplete type 'llvm::DominatorT...

I have a pointer to a basic block and am iterating thru its predecessor blocks. I want to get a pointer to the predecessor block. How do I do it. I am using following code and it given compile time errors. error: cannot convert 'llvm::const_pred_iterator' to 'const llvm::BasicBlock*' in initialization const BasicBlock *b = PH->getParent(); // process all pred block

...ity was an include function with automatic unique detection. This would allow the use of headers instead of having to manually copy and paste them into the source. What were you planning on doing with your LLVM parser, if I may ask? --Sam ----- Original Message ---- > From: Surinder <surifilms at gmail.com> > To: llvmdev at cs.uiuc.edu > Sent: Sun, January 23, 2011 10:35:38 PM > Subject: [LLVMdev] LLVM grammar for ANTLR > > Has anyone written a grammar for LLVM for ANTLR. I mean an ANTLR > grammar that parses LLVM instructions. Is an LLVM grammar available >...

I am creating a new pass (function pass) called Dfl from the Hello example and notes on "Writing an LLVM Pass". When I compile the program I get inncomplete type error (llvm/include/llvm/Pass.h:188: error: incomplete type 'llvm::DominatorTree' used in nested name specifier). The code is given below. Surinder struct Dfl : public FunctionPass { raw_ostream *Out; static

Has anyone written a grammar for LLVM for ANTLR. I mean an ANTLR grammar that parses LLVM instructions. Is an LLVM grammar available for any other parsing tool? Surinder

Is the pass "Break Critical edges" acheives the same as edge-splitting SSA, i.e., a node has either multiple predecessors or multiple successors but not both. A node with multiple predecessors and multiple successors is replaced by two consecutive nodes joined together. The first node has multiple predecessors and second node as its only successor. The second node has first node as

Hi, I am new to llvm to so please be kind to me if I am asking something that is too simple. I want to get the bounds of an array when I have a handle to getelementptr or insertelement or extractvalue instructions. I am writing a translation routine from llvm to a non-deterministic language and want to include array bounds check in it. The array size gets printed as part of the type of the

Hi, OPT documentation mentions optimization options -O1,-O2 and -O3 etc. (I am using -O0, no optimizations). The documentation does not tell you what optimizations are included in each option. It says they are same as gcc. gcc dodoc is not of much help either. Where can I find this information. Surinder Kumar Jain

Hi, I am emitting llvm bit code using llvm-gcc -c -emit-llvm -O0 -o test.bc test.c and then optimizing it with opt -O3 -print-module test.bc in order to obtain a dump of generated IR. The resulting code has Phi nodes and is perhaps in SSA form. I want to undo the SSA form while retaining all the other optimizations. Is mem2reg the right optimization to be added after -O3, i.e., opt -O3

I am getting a segmentation fault as soon as I touch the Basic block *b value defined as :  std::string getPHIAssigns(const PHINode *PH)  { const BasicBlock *b = PH->getParent();    errs() << b->size(); where as getPHIAssigns is being called from               for (BasicBlock::iterator ins=b->begin(), e3=b->end(); ins!=e3; ++ins, ++l) // get instructions                

When I compile C programs into llvm, it produces load instructions in two different flavours. (1) %8 = load i8** %bp, align 8 (2) %1 = load i8* getelementptr inbounds ([4 x i8]* @.str, i64 0, i64 0), align 1 I know that %bp in first case and the entire "getelementptr inbounds ([4 x i8]* @.str, i64 0, i64 0)" in second case can be obtained by dump'ing I.getOperand(0)

John, I have looked at the SAFECode and thought following sould work if (isa<Constant>(I.getOperand(0))) { Out << "*** operand 0 is a constant ******"; if (Instruction *operandI = dyn_cast<Instruction>(I.getOperand(0))) { Out << "********operand is an instruction ****"; if (GetElementPtrInst *gepI =

John, I have looked at the real code (instead of the obsolete one) and it appears to be easy to find if an operand is a getelementptr instruction. if (ConstantExpr * CE = dyn_cast<ConstantExpr>(I.getOperand(0))) { Out<< "*** operand 0 is a constant Expr******"; if (CE->getOpcode() == Instruction::GetElementPtr) { Out<< "*** operand 0 is