Displaying 20 results from an estimated 7000 matches similar to: "[LLVMdev] Identify Loops from within FunctionPass, or possible to intermix different types of Passes?"
2011 Jan 06
0
[LLVMdev] Identify Loops from within FunctionPass, or possible to intermix different types of Passes?
On Jan 6, 2011, at 9:21 AM, Chuck Zhao wrote:
> LLVMers,
>
> I have a traversal plan which needs to visit certain types of Functions. For each instruction in such functions, I will need to know:
> 1. is it located inside a loop
> 2. if yes, what level of loop nest it is currently in.
>
> So on the highest level, it should be a FunctionPass. However, in order to identify
2012 Apr 27
2
[LLVMdev] Problem in accessing Loops in other Functions Problem in accessing Loops in other Functions problem in accessing the Loops in other functions
Hi,
I am using Loop pass ( runOnLoop() function )
In this function I want to access all the Loops in all the functions in the
current Module
the LoopInfo Pass only gives the Loops in the function where the current
Loop resides :-(
Is there any other Pass by which I can access the Loops in others functions
as well ?
......
Regards,
Shanmukha Rao
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2011 Feb 28
1
[LLVMdev] LoopInfo of a basic block
On Mon, Feb 28, 2011 at 6:04 PM, Naznin Fauzia <laboni14 at gmail.com> wrote:
> Thanks Devang and John. My pass is actually a loop pass, not a function
> pass. So, I couldnt override the getAnalysisUsage.
>
A LoopPass is no different from a FunctionPass here. You can use
getAnalysisUsage and getAnalysis in a LoopPass.
> I am in a loop pass, I know the outermost loop. Now How
2011 May 09
2
[LLVMdev] get LPPassManager to use it in llvm::CloneLoop
Hi,
I try to write a FunctionPass that, among other tasks, has to clone some loops
from the current function.
How can I obtain the LPPassManager in order to use the CloneLoop function.
In a LoopPass this is a parameter for the runOnLoop, but how can I obtain it in
a FunctionPass?
I tried simply by creating a new instance :
ValueMap<const Value *, Value* > VMap;
2011 Feb 28
2
[LLVMdev] LoopInfo of a basic block
On 2/28/11 4:43 PM, Devang Patel wrote:
>
> On Feb 28, 2011, at 2:35 PM, Naznin Fauzia wrote:
>
>> Hi all,
>>
>> How Can I get the Loops around an Instruction?
>>
>> I know I can get the basic block of an instruction using
>> inst.getParent() which returns a BasicBlock*. Now I want to use the
>> getLoopFor(BasicBlock) method of the class
2011 Sep 12
1
[LLVMdev] IVUsers (LoopPass) analysis in a ModulePass?
Hi Tim,
> From: Tim Creech <tcreech at umd.edu>
> Subject: [LLVMdev] IVUsers (LoopPass) analysis in a ModulePass?
> Date: September 1, 2011 11:46:28 AM PDT
> To: llvmdev at cs.uiuc.edu
>
> Hi all,
> I have a loadable ModulePass which does transformations, and I would like to
> use IVUsers analysis within it. I noticed when I try to do this (via
> the usual
2012 Apr 27
0
[LLVMdev] Problem in accessing Loops in other Functions Problem in accessing Loops in other Functions problem in accessing the Loops in other functions
On 4/27/12 2:05 PM, shanmuk rao wrote:
> Hi,
> I am using Loop pass ( runOnLoop() function )
> In this function I want to access all the Loops in all the functions
> in the current Module
>
> the LoopInfo Pass only gives the Loops in the function where the
> current Loop resides :-(
>
> Is there any other Pass by which I can access the Loops in others
> functions
2011 Feb 28
0
[LLVMdev] LoopInfo of a basic block
Thanks Devang and John. My pass is actually a loop pass, not a function
pass. So, I couldnt override the getAnalysisUsage.
I am in a loop pass, I know the outermost loop. Now How can I get the
loopInfo from here? I couldn't find helpful methods in the LoopInfo class
documents.
On Mon, Feb 28, 2011 at 5:52 PM, John Criswell <criswell at illinois.edu>wrote:
> On 2/28/11 4:43 PM,
2012 Jul 13
4
[LLVMdev] adding new data types to llvm
Hello .
I would like to add new custom data type to llvm C parser, I use LLVM/Clang version 3.1.
Adding new type instructions from llvm.org site are out of date (http://llvm.org/docs/ExtendingLLVM.html#type).
Could you please provide me with guidance?
Thanks in advance,
Edvard
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2010 Apr 23
2
[LLVMdev] The "scope" of passes
> Personally, I would make everything a FunctionPass.
What if a FunctionPass requires the results of a LoopPass? Is there a way to get
all loops of a function without using LoopPass and LoopInfo?
2010 Apr 24
2
[LLVMdev] The "scope" of passes
But is there a better way of getting the loops in a function than using
LoopInfo? For some tasks it is necessary that we don't process the same loop
twice. Doing that with LoopInfo requires the use of a flag.
On Fri, Apr 23, 2010 at 12:41 PM, Devang Patel <devang.patel at gmail.com>wrote:
> On Thu, Apr 22, 2010 at 11:50 PM, Arjun <arjunsingri at gmail.com> wrote:
> >>
2012 Jul 23
0
[LLVMdev] llvm::LoopPass
Hello .
I'm trying to implement LoopPass.
Here is simple code :
class LoopParser: public llvm::LoopPass
{
public:
static char ID;
public:
virtual void getAnalysisUsage(llvm::AnalysisUsage &AU) const
{
AU.addRequiredID(llvm::LoopSimplifyID);
AU.addPreservedID(llvm::LoopSimplifyID);
AU.addRequired<llvm::LoopInfo>();
}
2011 May 09
0
[LLVMdev] get LPPassManager to use it in llvm::CloneLoop
On Mon, May 9, 2011 at 1:06 AM, Jimborean Alexandra
<xinfinity_a at yahoo.com> wrote:
> Hi,
>
> I try to write a FunctionPass that, among other tasks, has to clone some
> loops from the current function.
> How can I obtain the LPPassManager in order to use the CloneLoop function.
> In a LoopPass this is a parameter for the runOnLoop, but how can I obtain it
> in a
2010 Apr 23
0
[LLVMdev] The "scope" of passes
On Thu, Apr 22, 2010 at 11:50 PM, Arjun <arjunsingri at gmail.com> wrote:
>> Personally, I would make everything a FunctionPass.
>
> What if a FunctionPass requires the results of a LoopPass? Is there a way to get
> all loops of a function without using LoopPass and LoopInfo?
A LoopPass operates on loops. It updates/deletes loops. Its end result
is modified loops.
A
2012 Jul 05
3
[LLVMdev] "symbol lookup error" while running a Simple Loop Pass
Hello;
I wrote this simple loop pass to collect the number of instructions in each
loop of the program. The code is as follows-
#define DEBUG_TYPE "loopinst"
#include "llvm/Pass.h"
#include "llvm/Analysis/LoopPass.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/Instructions.h"
#include
2012 Dec 13
2
[LLVMdev] LoopPass doFinalization() called multiple times per program?
I'm wondering if the documentation for LoopPass (
http://llvm.org/docs/WritingAnLLVMPass.html#LoopPass) is misleading or
incorrect (or if I'm just missing something.) The documentation states:
"The doFinalization method ... is called when the pass framework has
finished calling
runOnLoop<http://llvm.org/docs/WritingAnLLVMPass.html#runOnLoop> for
every loop in the program being
2011 Feb 28
2
[LLVMdev] LoopInfo of a basic block
Hi all,
How Can I get the Loops around an Instruction?
I know I can get the basic block of an instruction using inst.getParent()
which returns a BasicBlock*. Now I want to use the getLoopFor(BasicBlock)
method of the class LoopInfo.
But I dont know how to get the LoopInfo.
BasicBlock* bb = inst.getParent();
(... what should I add here?)
Loop* innerloop = LI -> getLoopFor(bb):
Thanks.
2012 Dec 17
3
[LLVMdev] LoopPass doFinalization() called multiple times per program?
On Sun, Dec 16, 2012 at 7:23 AM, Duncan Sands <baldrick at free.fr> wrote:
> Hi Stephen,
>
>
> On 13/12/12 18:58, Stephen McGruer wrote:
>
>> I'm wondering if the documentation for LoopPass
>> (http://llvm.org/docs/**WritingAnLLVMPass.html#**LoopPass<http://llvm.org/docs/WritingAnLLVMPass.html#LoopPass>)
>> is misleading or
>> incorrect (or
2012 Dec 16
0
[LLVMdev] LoopPass doFinalization() called multiple times per program?
Hi Stephen,
On 13/12/12 18:58, Stephen McGruer wrote:
> I'm wondering if the documentation for LoopPass
> (http://llvm.org/docs/WritingAnLLVMPass.html#LoopPass) is misleading or
> incorrect (or if I'm just missing something.) The documentation states:
>
> "The doFinalization method ... is called when the pass framework has finished
> calling runOnLoop
2011 Nov 10
4
[LLVMdev] Problem getting LoopInfo inside non-LoopPass
John,
This did not work. It compiles (isDeclaration was the name of the
function) and I passed a reference (&F) (F is a function pointer). I still
get the opt load error from the original message (UNREACHABLE exectuted!).
Thanks.
On Thu, Nov 10, 2011 at 10:00 AM, Ryan Taylor <ryta1203 at gmail.com> wrote:
> 1. Ok will do.
> 2. Ok, will do.
> 3. It's a CallGraphPass. I