similar to: [LLVMdev] difficulty in replicating a sequence of instructions + inserting at a different location -- "instruction doesn't dominate all uses"

On 5/2/11 11:59 AM, Chuck Zhao wrote: > I am having difficulty in replicating a sequence of instructions (2+, > with def-use dependencies within) and inserting them at a different > location. > > I have tried a few different approaches (IRBuilder, new Instruction(), > I->clone(), insertBefore/insertAfter,etc.), all leading to the same > error msg: > "Instruction

Jon, > You want: > TaintVar->insertAfter(FirstI); This worked! Thank you. On Thu, Aug 25, 2016 at 9:38 AM, Jonathan Roelofs <jonathan at codesourcery.com> wrote: > > > On 8/25/16 7:01 AM, Shehbaz Jaffer via llvm-dev wrote: >> >> I tried an alternative way of adding instruction by first getting the >> first instruction of the basic block, and then

Hi, I have added an insertAfter method to the ilist and Instruction classes. The methods are implemented as efficiently as the currently existing insert and insertBefore methods. The insertAfter method was created to mirror a similar method in another compiler in order to ease an ongoing port. The patch, which is very small is included as AddInsertBefore.patch. Additionally, I wrote a small test

John Criswell wrote: > Small nitpick: in Instruction.cpp, the comment for insertAfter says > insertBefore and not insertAfter. > :) > > -- John T. > > _______________________________________________ > LLVM Developers mailing list > LLVMdev at cs.uiuc.edu http://llvm.cs.uiuc.edu > http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev > Thanks for spotting

Thomas B. Jablin wrote: > Hi, > I have added an insertAfter method to the ilist and Instruction classes. The methods are implemented as efficiently as the currently existing insert and insertBefore methods. The insertAfter method was created to mirror a similar method in another compiler in order to ease an ongoing port. The patch, which is very small is included as AddInsertBefore.patch.

Since there are no constructors for Value, how do you properly insert a new Value? If I create a pointer Value *newValue and then call AA.copyValue(oldValue, newValue), this does not work, since newValue is not allocated. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20120203/44086cf5/attachment.html>

Hi, I am instrumenting a piece of code. I want to insert a function call at the interested area, and do something in the called function which is written by myself. I have succeed on implementing the pass, and getting the instrmented code. However, I am not sure where to put this function, and what kind of linkage I should use for this function. Currently I use External linkage which is

Ryan Taylor wrote: > Since there are no constructors for Value, how do you properly insert a > new Value? Value is a pure base. If you want to construct a new Value, then you want to construct a global variable or instruction or argument or something in particular. > If I create a pointer Value *newValue and then call > AA.copyValue(oldValue, newValue), this does not work, since

Nick, First, thanks for responding. Secondly, I just want to create an exact copy of an already exisitng Value, this should be pretty simple to do but I'm unclear on how to do this? For example, PHINode::getIncomingValue (unsigned) returns a "Value" and I want to make a copy of that Value. Is there some other way to do this other than copyValue() that I'm missing? On Sat,

Why not just use Instruction::insertAfter()? I->insertAfter(new_inst); On Mon, Sep 5, 2016 at 8:13 AM, Ryan Taylor via llvm-dev < llvm-dev at lists.llvm.org> wrote: > Try incrementing the iterator before using. > > On Sep 5, 2016 10:26, "Simona Simona via llvm-dev" < > llvm-dev at lists.llvm.org> wrote: > >> On Mon, Sep 5, 2016 at 3:20 AM, Daniel

Hi, I also want to insert a function call at the interested area, and do something in the called function which is written by myself. First you need to determine the INSTRUCTION where you want to insert your function to. you can do this by writing some code like, for (Function::iterator BI = F.begin(), BE = F.end(); BI != BE; ++BI) for(BasicBlock::iterator II =

On Mon, Sep 5, 2016 at 3:20 AM, Daniel Berlin <dberlin at dberlin.org> wrote: > > > On Sun, Sep 4, 2016 at 1:06 PM, Simona Simona via llvm-dev < > llvm-dev at lists.llvm.org> wrote: > >> Hello, >> >> I'm trying to add a new instruction after a given instruction in a basic >> block. >> Until LLVM 3.7, I was using the following code:

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

Hi llvm-devel, I have migrated my codebase from llvm-3.6 to llvm 3.8.1-stable. Although I was able to resolve most of the problems, I am facing issues resolving the following: To insert an instruction immediately after the first instruction within a basic block, I first get all instructions in my basic block in an instruction container list. Once that is done, I insert my new instruction in the

Hello, I'm trying to add a new instruction after a given instruction in a basic block. Until LLVM 3.7, I was using the following code: BB->getInstList().insertAfter(I, new_inst); [where both I and new_inst are Instruction*] In LLVM 3.8 however, the SymbolTableList was created as a wrapper over iplist. Could anyone please tell me how I can do the same type of insertion in LLVM 3.8?

I collected a sequence of LLVM instructions, want to make a copy of each and insert them into a PREVIOUS location inside the same function (all globals and locals are properly declared before the PREVIOUS location). Here is the list of instructions I want to duplicate and insert: 0 %90 = load i32* @strstart, align 4 1 %91 = add i32 %90, 2 2 %88 = load i32* @ins_h, align 4 3 %92 =

Hi all, I'm getting this error: "Virtual register defs don't dominate all uses". It comes from llvm/lib/CodeGen/MachineVerifier.cpp:2138 I don't understand what it means. Does anyone know? Thanks. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20190416/f2eef252/attachment.html>

Hi, I am trying to write a small pass. In my pass, I have inserted some instruction and used that in another. But, during OPT it is showing "Instruction does not dominate all uses" like following - %b.1 = bitcast i32 4 to i32 ; <i32> [#uses=8] %11 = add i32 %a.1, %b.1 ; <i32> [#uses=1]Instruction does not dominate all uses! Any

Hello All, I am instrumenting IR to pass addres of the function to runtime but I am getting error - Instruction does not dominate all uses. I used M.dump() to get below dump, not able to figure out what I am doing wrong. Any help would be much appreciated. define dso_local double @mysqrt(double %val1) local_unnamed_addr #0 { entry: %0 = bitcast double (double)* @mysqrt to i8* %1 = call

Hi, I am writing an alias profiler using the points-to relation. For this I'm inserting a function call of external function with the following type profile(int,int,int,void*,void*,...) I'm trying to pass the dereferenced pointer's memory address and the address of the location who are in alias set of the pointer. For this i'm using BitCastInst BitCastInst *init1= new