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Hi Lang, Thanks for your inputs on the problem. I was just curious to know if you got any opportunity to work on the solution for this. Regards Sachin > -----Original Message----- > From: llvmdev-bounces at cs.uiuc.edu [mailto:llvmdev-bounces at cs.uiuc.edu] On > Behalf Of Sachin.Punyani at microchip.com > Sent: Tuesday, November 17, 2009 12:00 PM > Subject: Re: [LLVMdev] Crash in PBQP register allocator > > Thanks Lang! > > I think we can use linear scan as work around for short term. > > Thanks for your help. > > Regards > Sachin > > &g...

Hi Sachin, Yes. Bernhard Scholz and I have just discussed a fix for this. I hope to commit it in the next few days. I will let you know as soon as it goes in to the mainline. Regards, Lang. On Tue, Dec 15, 2009 at 5:34 PM, <Sachin.Punyani at microchip.com> wrote: > Hi Lang, > > Thanks for your inputs on the problem. I was just curious to know if you > got any opportunity to work on the solution for this. > > Regards > Sachin > > > -----Original Message----- > > From: llvmdev-bounces at cs.uiuc...

...chin ________________________________ From: llvmdev-bounces at cs.uiuc.edu [mailto:llvmdev-bounces at cs.uiuc.edu] On Behalf Of Evan Cheng See MachineOperand.h. If a MachineOperand represents an external symbol, getSymbolName() returns a string. Evan On Jan 27, 2009, at 8:26 PM, Sachin.Punyani at microchip.com wrote: Hi All, I need to print some extra information about libcall names in assembly. Libcall names are managed as ExternalSymbols in LLVM. How do I access these ExternalSymbols from Asmprinter? AsmPrinter uses class Module that lists all the global variables (includ...

...your Module. You can go through all of the GlobalValues, look for those that are Function declarations (use the "Function::isDeclaration()" method), and then placing them in the appropriate place in your assembly file. Would that work? -bw On Jan 28, 2009, at 12:23 AM, <Sachin.Punyani at microchip.com> <Sachin.Punyani at microchip.com > wrote: > Hi, > > Probably I did not mention my question correctly. > > I need to emit declarations of the libcalls (that are made in the > current module) at the beginning of the assembly file. The class > “Mo...

....com> wrote: > Hi Sachin, > > Yes. Bernhard Scholz and I have just discussed a fix for this. I hope to > commit it in the next few days. I will let you know as soon as it goes in to > the mainline. > > Regards, > Lang. > > On Tue, Dec 15, 2009 at 5:34 PM, <Sachin.Punyani at microchip.com> wrote: >> >> Hi Lang, >> >> Thanks for your inputs on the problem. I was just curious to know if you >> got any opportunity to work on the solution for this. >> >> Regards >> Sachin >> >> > -----Original Message----...

...is not available in the FunctionList. I need to emit declaration for these libcalls. So FunctionList does not provide me the information. Is there any other way I can get the information of these libcalls in AsmPrinter? Regards Sachin > -bw > > On Jan 28, 2009, at 12:23 AM, <Sachin.Punyani at microchip.com> > <Sachin.Punyani at microchip.com > > wrote: > > > Hi, > > > > Probably I did not mention my question correctly. > > > > I need to emit declarations of the libcalls (that are made in the > > current module) at the beginning...

...e intervals with which they interfere). Cheers, Lang. On Thu, Nov 12, 2009 at 4:29 PM, Lang Hames <lhames at gmail.com> wrote: > This looks like a bug in the PBQP solver. I'm currently investigating. > > Cheers, > Lang. > > On Thu, Nov 12, 2009 at 12:46 AM,  <Sachin.Punyani at microchip.com> wrote: >> Hi, >> >> >> >> Please see the two “.ll’ files attached. >> >> >> >> Command line used >> >> llc –march=pic16  –pre-RA-sched=list-burr –regalloc=pbqp new.obc >> >> >> >> The abov...

> -----Original Message----- > From: llvmdev-bounces at cs.uiuc.edu [mailto:llvmdev-bounces at cs.uiuc.edu] On > Behalf Of Bill Wendling > Sent: Friday, September 19, 2008 4:38 AM > > On Thu, Sep 18, 2008 at 7:12 AM, <Sachin.Punyani at microchip.com> wrote: > > What changes would be required in LLVM to support illegal pointer type? > > > Hi Sachin, > > The question's a bit broad. And I don't think the answer you want is > as simple as "don't run the legalizer" (which probably w...

Thanks Lang! I think we can use linear scan as work around for short term. Thanks for your help. Regards Sachin > -----Original Message----- > From: Lang Hames [mailto:lhames at gmail.com] > Sent: Sunday, November 15, 2009 10:08 AM > To: Sachin Punyani - I00202 > Cc: llvmdev at cs.uiuc.edu > Subject: Re: [LLVMdev] Crash in PBQP register allocator > > Hi Sachin, > > Confirmed: This is being caused by a subtle issue in the heuristic > PBQP solver. Specifically: R1/R2 reductions as currently implemented > can, on rare occas...

...em to a pseudo register class. This allows you to mark i16 "legal". The difficult part is then to figure out how to lower these 16-bit operations into 8-bit ones. You probably need to custom lower a bunch of them with target specific code. Evan On Sep 19, 2008, at 5:01 AM, Sachin.Punyani at microchip.com wrote: > > >> -----Original Message----- >> From: llvmdev-bounces at cs.uiuc.edu [mailto:llvmdev- >> bounces at cs.uiuc.edu] > On >> Behalf Of Bill Wendling >> Sent: Friday, September 19, 2008 4:38 AM >> >> On Thu, Sep 18, 2008 a...

...are subreg pairs of ah,al and bh, bl the DAG looks like Wrapper:i16 (GR16) = MoveToHi:i8 (GR8) , MoveToLo:i8 (GR8) Now how to make sure that if MoveToHi gets AH , then 1. MoveToLo should get AL, 2. the Wrapper should get AX - Sanjiv On Sep 19, 2008, at 5:01 AM, Sachin.Punyani at microchip.com wrote: > > >> -----Original Message----- >> From: llvmdev-bounces at cs.uiuc.edu [mailto:llvmdev- >> bounces at cs.uiuc.edu] > On >> Behalf Of Bill Wendling >> Sent: Friday, September 19, 2008 4:38 AM >> >> On Thu, Sep 18, 2008 at...

On Mon, 2008-08-18 at 08:50 -0700, Eli Friedman wrote: > On Mon, Aug 18, 2008 at 6:31 AM, <Sachin.Punyani at microchip.com> wrote: > > assert(Res.getValueType() == N->getValueType(0) && N->getNumValues() == 1 && > > "Invalid operand expansion"); > > > > LOAD node has two values but the assertion checks N->getNumValues() == 1 > > which...

...> >> Yes. Bernhard Scholz and I have just discussed a fix for this. I hope to >> commit it in the next few days. I will let you know as soon as it goes in to >> the mainline. >> >> Regards, >> Lang. >> >> On Tue, Dec 15, 2009 at 5:34 PM, <Sachin.Punyani at microchip.com> wrote: >> >>> Hi Lang, >>> >>> Thanks for your inputs on the problem. I was just curious to know if you >>> got any opportunity to work on the solution for this. >>> >>> Regards >>> Sachin >>> &g...

On Mon, Aug 18, 2008 at 6:31 AM, <Sachin.Punyani at microchip.com> wrote: > assert(Res.getValueType() == N->getValueType(0) && N->getNumValues() == 1 && > "Invalid operand expansion"); > > LOAD node has two values but the assertion checks N->getNumValues() == 1 > which is not letting us change...

On Tue, Aug 19, 2008 at 8:07 AM, sanjiv gupta <sanjiv.gupta at microchip.com> wrote: > On Mon, 2008-08-18 at 08:50 -0700, Eli Friedman wrote: >> On Mon, Aug 18, 2008 at 6:31 AM, <Sachin.Punyani at microchip.com> wrote: >> > assert(Res.getValueType() == N->getValueType(0) && N->getNumValues() == 1 && >> > "Invalid operand expansion"); >> > >> > LOAD node has two values but the assertion checks N->getNumValues() == 1...

Hi, What changes would be required in LLVM to support illegal pointer type? Regards Sachin -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20080918/36e53cde/attachment.html>

On Thu, Sep 18, 2008 at 7:12 AM, <Sachin.Punyani at microchip.com> wrote: > What changes would be required in LLVM to support illegal pointer type? > Hi Sachin, The question's a bit broad. And I don't think the answer you want is as simple as "don't run the legalizer" (which probably won't work). Do you have a...

Hi, When expanding multiply operation in LegalizeTypes LLVM generates some nodes such as UMUL_LOHI (please refer file LegalizeIntegerTypes.cpp - function - ExpandIntegerResult). However while lowering this operation in LegalizeDAG (please refer file LegalizeDAG.cpp - function - LegalizeOp) the comment says "These nodes will only be produced by target-specific lowering.....".

On Wed, Dec 17, 2008 at 11:49 PM, <Sachin.Punyani at microchip.com> wrote: > 2) Why is custom legalization of this node not allowed? No target has needed it so far. Why do you need it? > 3) My target does not have any instruction directly matching to this > operation. How should this node be legalized? If your target do...

See MachineOperand.h. If a MachineOperand represents an external symbol, getSymbolName() returns a string. Evan On Jan 27, 2009, at 8:26 PM, Sachin.Punyani at microchip.com wrote: > Hi All, > > I need to print some extra information about libcall names in > assembly. Libcall names are managed as ExternalSymbols in LLVM. > > How do I access these ExternalSymbols from Asmprinter? > > AsmPrinter uses class Module that lists al...