similar to: [LLVMdev] Changes in llvm::Instruction and subclasses

Thanks Jonathan. I knew this document. But I didn't understand the "unsigned iType, Use *Ops" fields. Could you please help how I can create a new instruction to do the example I was giving? Thanks for your time in advance. Best, Zhi On Thu, Apr 16, 2015 at 5:48 PM, Jonathan Roelofs <jonathan at codesourcery.com > wrote: > You're probably looking for this method: >

I read the tutorial document, but I didn't understand the it and Ops fields of instruction class well. Can any one give me an example? Instruction *newInstr = new Instruction(Type *ty, unsigned it, Use *Ops, unsigned NumOps, Instruction *InsertBefore); For example, I have an *instruction *pInst *without no the type of operation in advance. If I want to create a new instruction which is

Thanks, Tim. What I want to do is to change the scalar instructions to scalar ones. For example, if I have to the following one: %3 = fadd double %1, double %2 I want to change it into %6 = fadd <2 x double> %4, double %2. I understand that I can detect the operation first, and use "create" to create for each of them. But I don't if there is a generic way to do this because

Thanks for your reply. After I change 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

Hi Tony, I just checked LLVM 2.3 and ReturnInst has these: static ReturnInst* Create(Value * const* retVals, unsigned N, Instruction *InsertBefore) static ReturnInst* Create(Value * const* retVals, unsigned N, BasicBlock *InsertAtEnd) which are what you're looking for. In LLVM trunk, MRV-syntax LLVM assembly files and bitcode

Hello. After llvm-java front-end compilation under cygwin I have encountered with the problem. Compilation successfully complete but the assertion message displayed while running application class2llvm.exe. C:\SRC_CVS\COPY\llvm\tools\llvm-java\Debug\bin>class2llvm.exe assertion "Ty->isInteger() && Ty->isSigned() && "Illegal type for signed integer

Hi all, The C++11 (& C11) compare_exchange functions with explicit memory order allow you to specify two sets of semantics, one for when the exchange actually happens and one for when it fails. Unfortunately, at the moment the LLVM IR "cmpxchg" instruction only has one ordering, which means we get sub-optimal codegen. This probably affects all architectures which use

On Sat, 2005-08-27 at 11:47 -0700, Reid Spencer wrote: > Alkis Evlogimenos wrote: > > It seems that these two classes are the same... Maybe they should be > > merged into 1 class? > > > I think you're looking at something old. MutexLocker doesn't exist any more. llvm/Support/ThreadSupport.h is not generated anymore? -- Alkis

<algorithm> works too. On Fri, 24 Sep 2004 10:09:21 -0500 Alkis Evlogimenos <alkis at cs.uiuc.edu> wrote: > On Fri, 2004-09-24 at 09:43, Paolo Invernizzi wrote: > > Jeff Cohen wrote: > > > > >But I compiled that under vc7.1 as it was! > > > > > > > > ;-(( > > > > Probably is an implicid includes, but I'm using the

Sir, I am using the op_begin and op_end iterator for iterating over the operands as mentioned below. for (User::op_iterator operand=j->op_begin(),operand_end=j->op_end();operand!=operand_end;++operand){ Value *v=operand->get(); const Type *t=v->getType(); cerr<<endl<<" operand: "<<"[ "<<v->hasName()<<"

Hi, the insertBefore parameter, present in all constructors, is declared like this: Instruction *InsertBefore=0 any reason there's no "const" before "Instruction" ? - Volodya

On Wed, 2004-06-09 at 05:26, Vladimir Prus wrote: > Alkis Evlogimenos wrote: > > On Wed, 2004-06-09 at 04:56, Vladimir Prus wrote: > > > Hello! > > > Is there an (semi)automatic way to save registers used by a function? For > > > example, on my target I have to store ar0-ar4 and gr0-gr4, gr5, gr6. For > > > now I just emit huge prologue code to push

On Thu, 28 Apr 2005, Sameer D. Sahasrabuddhe wrote: > Recently wrote a pass that inserts a preheader for a loop that doesn't > have one. When I tried to run it, I ran into a problem that became > obvious in hindsight - the PHINodes need to be updated in places where > the incoming control-edge has changed. Is there anything else that can > be affected when a block is inserted

Vladimir, Instructions are members of a linked list. Consequently if you insert some Instruction, that instruction gets changed. So, its not const. Simple enough? Reid. On Thu, 2004-06-24 at 01:02, Vladimir Prus wrote: > Hi, > the insertBefore parameter, present in all constructors, is declared like > this: > > Instruction *InsertBefore=0 > > any reason there's

Alkis Evlogimenos wrote: > On Wed, 2004-06-09 at 04:56, Vladimir Prus wrote: > > Hello! > > Is there an (semi)automatic way to save registers used by a function? For > > example, on my target I have to store ar0-ar4 and gr0-gr4, gr5, gr6. For > > now I just emit huge prologue code to push them all to stack -- even if > > they are not modified at all. > > >

On 29 Apr 2006 20:38:58 -0600, Tom Tromey <tromey at redhat.com> wrote: > >>>>> "Archie" == Archie Cobbs <archie at dellroad.org> writes: > > >> In the JIT, devirtualization looks doable, though somewhat fiddly. At > >> least, that is true for straightforward things like calls to methods > >> in final classes, or calls to

Actually, <algorithm> is not correct. This remove is in stdio.h and io.h in VC7.1. It removes a file, not elements from a collection. The proper solution is to not use remove at all and use Path::destroy_file(). On Fri, 24 Sep 2004 08:09:37 -0700 Jeff Cohen <jeffc at jolt-lang.org> wrote: > <algorithm> works too. > > On Fri, 24 Sep 2004 10:09:21 -0500 > Alkis

Hi llvmdev, I've noticed that there is no unary operator in LLVM. For unary operator such as Neg or Or operator, the IR builder just creates a binary operation with one dummy operand, 01823 <http://llvm.org/doxygen/classllvm_1_1BinaryOperator.html#a073c092ce74a122e898e435e60e84599> BinaryOperator <http://llvm.org/doxygen/classllvm_1_1BinaryOperator.html>

Recently wrote a pass that inserts a preheader for a loop that doesn't have one. When I tried to run it, I ran into a problem that became obvious in hindsight - the PHINodes need to be updated in places where the incoming control-edge has changed. Is there anything else that can be affected when a block is inserted into the CFG? Also, planning to write a helper function which will take care

On 08/09/05, Alkis Evlogimenos <evlogimenos at gmail.com> wrote: > to those coalesced registers, it is logical that noone will ever query > the liveness of those registers (unless there is a bug somewhere in the Indeed the coalesced registers may logically not be queried since they do not appear in any operand list of the machine code, but the VarInfo::DefInst in VirtRegInfo of the