similar to: top and allocation issues

On my CentOS 5 box, in a C++ program that does much arithmetic, including numerous matrix multiplications, I have a situation in in which the result depends on the nature of nearby I/O. Thus, with all arithmetic done with type double, and where values are mostly in the range [-1.0e0,+1.0e0] or nearby, I do: cerr << "some stuff" << endl; mat3 = matmult(mat1,mat2); I

Hello, I have a couple of doubts, as listed below: 1. To list all the global variables in the module, I am iterating using type_iterator and for each Type I get, I am using value_iterator to iterate over Values . In the second iteration I am getting unexpected results. For each type obtained from type_iterator->second, value_iterator->first produces the same list as what

On Wed, 31 May 2006, Silken Tiger wrote: >> that requires a BasicBlockPass, it will fail the same was as when a >> ModulePass requires a FunctionPass. > void MParSchedule::getAnalysisUsage(AnalysisUsage &AU) const { > AU.setPreservesAll(); > } > > MParSchedule requires nothing and changes nothing. So hopefully the above code > represents this fact? Right

Hello, I'm writing a pass that adds a function prototype to the module during doInitialization() and stores the pointer in a global variable. If I run opt with "-O1" or less, everything works fine. However, If I call opt with "-O2" or "-O3" then as soon as runOnFunction() is called, the pointer seems to be NULL. Here is a code that shows the problem:

Hi Am Dienstag, 30. Mai 2006 19:21 schrieb Chris Lattner: > On Tue, 30 May 2006, Silken Tiger wrote: > > Everthing now compiles fine, but when running llc with invoking my own > > backend derived from the cbackend i get the following error: > > namespace llvm { > > class MParSchedule : public BasicBlockPass { > > public: > > > >

The solution (provided in Microsoft's documentation) is to add: #include <cstdio> #include <io.h> #include <fcntl.h> and run: int result = _setmode( _fileno(stdin), _O_BINARY ); if( result == -1 ) { std::cerr<<"Cannot set input mode to binary."<<std::endl; return 1; } result = _setmode( _fileno(stdout), _O_BINARY ); if( result == -1 ) {

I have a frontend that generates some LLVM bitcode that needs to be linked with other bitcode (its runtime library), which I generate from C++ source using Clang. If I write the output of my program to disk, link it with llvm-link, and then run it with lli, everything works perfectly. But if I try to perform the linking and running steps in my main program, I get this error during

Yes. It appears that a bad reference to DataLayout was passed to MachineJumpTableInfo::getEntrySize. I'm using LLVM as a pre-compiled Ubuntu package for this work, so I can't do much more in GDB without building from source. Program received signal SIGSEGV, Segmentation fault. 0x00000000007565f0 in llvm::MachineJumpTableInfo::getEntrySize(llvm::DataLayout const&) const () (gdb)

On Wed, 23 Jun 2004, Patrick Meredith wrote: > Somehow it fails with operand out of bounds when the number of operands > is 2 and I am asking for the second operand. Second meaning operand 1. Okay, so you have something like this: if (CallInst *CI = dyn_cast<CallInst>(...)) { ... = CI->getOperand(1); } Can you send in this snippet of code, the assertion, and the

Hi Andy, It looks like you're using LLVM's old JIT, rather than MCJIT? The old JIT has been removed from the mainline, and is no longer supported. I'd recommend building your own copy of LLVM from the development branch (as Reed suggested) where MCJIT is used by default - this may fix your issue. If you want to stick with the precompiled binaries, then you should change: #include

Hi all, With the newest patches to LLVM, there should be no reason for having "#include <iostream>" in any library source code file, except for lib/ Support/Streams.cpp. Please use the following instead: OLD NEW --- --- std::ostream llvm::OStream std::istream llvm::IStream std::cerr llvm::cerr std::cerr llvm::cout

void MetaSplit::handleProgramUses(Value *V){ if(!isa<BasicBlock>(V)) programValues.insert(V); if(User *U = dyn_cast<User>(V)){ User::op_iterator OB = U->op_begin(), OE = U->op_end(); for(; OB != OE; ++OB){ if(CallInst *CI = dyn_cast<CallInst>(*OB)){ Function *F = CI->getCalledFunction(); if(F == ii || F == fi || F == vi || F == di || F == ci

Thanks Chris, but the method you mentioned is not what I want. Maybe I didn't make it clear. As you said, /runtime/libprofile is runtime library for the following function. llvm_start_func_profiling llvm_start_block_profiling llvm_start_basic_block_tracing llvm_trace_basic_block And those above functions can be inserted into basic block etc for getting profile. However, those

Hi! I am trying to develop an LLVM tool which can apply different optimizations for selected functions. For example, I want to apply an optimization onto one function but not for another one. I am using the standard optimizations available in LLVM. That is the runOnModule function I have written: bool ComplNewBBFuncs::runOnModule(Module &M) { Function *Main =

Hi again everyone I have an arbitrarily dimensional array "a" and a list "jj" of length length(dim(a)). The elements of jj are vectors of indexes. How do I use do.call() to extract a[ jj[[1]], jj[[2]], jj[[3]], ...] ? Toy example follows: a <- matrix(1:30,5,6) jj <- list(5:1,6:1) I want the following a[ jj[[1]],jj[[2]] ] How do I do this? OBAttempts:

Hello, I am trying to vectorize the following loop but the vectorizer says: "Found a possible write-write reorder" and does not vectorize. Why? for (j=0; j < 8; j++) { jj = j << 3; m2[j][0] = diff[jj ] + diff[jj+4]; m2[j][1] = diff[jj+1] + diff[jj+5]; m2[j][2] = diff[jj+2] + diff[jj+6]; m2[j][3] = diff[jj+3] + diff[jj+7]; m2[j][4] = diff[jj ] -

Regardless of which version -- 1.1.1 or 1.2.0 (2000-11-27) -- with a fresh "directory" (i.e. no .RData), I am getting an extremely weird result. R : Copyright 2000, The R Development Core Team Version 1.2.0 Under development (unstable) (2000-11-27) > jj _ seq(0.05,0.95,by=0.002) > sum(jj==0.75) ## WRONG ANSWER [1] 0 > 0.05 + 350*.002 ## Double check that 0.75 is in jj [1]

Hi there, I am trying to understand how AliasAnalysis works out in LLVM. I used the following simple test-case (test4.c): -- void test() { int *jj, *kk; int aa = 100; jj = &aa; *jj = 300; } int main() { test(); return 0; } -- Then I did "llvm-gcc -emit-llvm -c -o test4.bc test4.c" to get bc. I tried the following 2 ways to get what I expect to get as

Hi I have a factor 'f' and a named list 'jj'. I want names(jj) to match up with levels(f). How do I use levels(f) to access elements of jj? > f <- factor(c("pigs","pigs","slugs")) > f [1] pigs pigs slugs Levels: pigs slugs > > jj <- list(pigs=1:10,slugs=1:3) My attempts to produce jj$pigs all give errors: >

Hi how do I extract those components of a list that satisfy a certain requirement? If jj <- list(list(a=1,b=4:7),list(a=5,b=3:6),list(a=10,b=4:5)) I want just the components of jj that have b[1] ==4 which in this case would be the first and third of jj, viz list (jj[[1]],jj[[3]]). How to do this efficiently? My only idea was to loop through jj, and set unwanted components to NULL,