search for: nvptxtargetmachine

...d can have math right in the IR, regardless the language it was lowered from. I can confirm this method works for us very well with C and Fortran, but in order to make accurate replacements of unsupported intrinsics calls, it needs to become aware of NVPTX backend capabilities in the form of: bool NVPTXTargetMachine:: isIntrinsicSupported(Function& intrinsic) and string NVPTXTargetMachine::whichMathCallReplacesIntrinsic(Function& intrinsic) > I would prefer not to lower such things in the back-end since different compilers may want to implement such functions differently based on speed vs. accuracy...

...the IR, regardless the language it was lowered from. I can confirm this > method works for us very well with C and Fortran, but in order to make > accurate replacements of unsupported intrinsics calls, it needs to become > aware of NVPTX backend capabilities in the form of: > > bool NVPTXTargetMachine:: > isIntrinsicSupported(Function& intrinsic) and > string NVPTXTargetMachine::whichMathCallReplacesIntrinsic(Function& > intrinsic) > > > I would prefer not to lower such things in the back-end since different > compilers may want to implement such functions differentl...

...d can have math right in the IR, regardless the language it was lowered from. I can confirm this method works for us very well with C and Fortran, but in order to make accurate replacements of unsupported intrinsics calls, it needs to become aware of NVPTX backend capabilities in the form of: bool NVPTXTargetMachine:: isIntrinsicSupported(Function& intrinsic) and string NVPTXTargetMachine::whichMathCallReplacesIntrinsic(Function& intrinsic) > I would prefer not to lower such things in the back-end since different compilers may want to implement such functions differently based on speed vs. accuracy...

...the IR, regardless the language it was lowered from. I can confirm this > method works for us very well with C and Fortran, but in order to make > accurate replacements of unsupported intrinsics calls, it needs to become > aware of NVPTX backend capabilities in the form of: > > bool NVPTXTargetMachine::**** > > isIntrinsicSupported(Function& intrinsic) and > string NVPTXTargetMachine::whichMathCallReplacesIntrinsic(Function& > intrinsic) > > > I would prefer not to lower such things in the back-end since different > compilers may want to implement such functions d...

...*s caller have enough context to match the immediate IR version? In fact, lli isn't calling *LowerToBT* so it isn't matching. But isn't this really a *peephole optimization* issue? LLVM has a generic peephole optimizer, *CodeGen/PeepholeOptimizer.cpp *which has exactly one subclass in *NVPTXTargetMachine.cpp.* But isn't it better to deal with X86 *LowerToBT* in a *PeepholeOptimizer* subclass where you have a small window of instructions rather than during pseudo instruction expansion where you have really one instruction? *PeepholeOptimizer *doesn't seem to be getting much attention and ce...

...the language it was lowered from. I can confirm this >> method works for us very well with C and Fortran, but in order to make >> accurate replacements of unsupported intrinsics calls, it needs to become >> aware of NVPTX backend capabilities in the form of: >> >> bool NVPTXTargetMachine::**** >> >> isIntrinsicSupported(Function& intrinsic) and >> string NVPTXTargetMachine::whichMathCallReplacesIntrinsic(Function& >> intrinsic) >> >> > I would prefer not to lower such things in the back-end since different >> compilers may want t...

...lowered from. I can confirm this >>> method works for us very well with C and Fortran, but in order to make >>> accurate replacements of unsupported intrinsics calls, it needs to become >>> aware of NVPTX backend capabilities in the form of: >>> >>> bool NVPTXTargetMachine::**** >>> >>> isIntrinsicSupported(Function& intrinsic) and >>> string NVPTXTargetMachine::whichMathCallReplacesIntrinsic(Function& >>> intrinsic) >>> >>> > I would prefer not to lower such things in the back-end since >>> di...

...confirm >>>> this method works for us very well with C and Fortran, but in order to make >>>> accurate replacements of unsupported intrinsics calls, it needs to become >>>> aware of NVPTX backend capabilities in the form of: >>>> >>>> bool NVPTXTargetMachine::**** >>>> >>>> isIntrinsicSupported(Function& intrinsic) and >>>> string NVPTXTargetMachine::whichMathCallReplacesIntrinsic(Function& >>>> intrinsic) >>>> >>>> > I would prefer not to lower such things in the back-e...

...>> this method works for us very well with C and Fortran, but in order to make >>>>> accurate replacements of unsupported intrinsics calls, it needs to become >>>>> aware of NVPTX backend capabilities in the form of: >>>>> >>>>> bool NVPTXTargetMachine::**** >>>>> >>>>> isIntrinsicSupported(Function& intrinsic) and >>>>> string NVPTXTargetMachine::whichMathCallReplacesIntrinsic(Function& >>>>> intrinsic) >>>>> >>>>> > I would prefer not to lower s...

...thod works for us very well with C and Fortran, but in order to make >>>>>> accurate replacements of unsupported intrinsics calls, it needs to become >>>>>> aware of NVPTX backend capabilities in the form of: >>>>>> >>>>>> bool NVPTXTargetMachine::**** >>>>>> >>>>>> isIntrinsicSupported(Function& intrinsic) and >>>>>> string NVPTXTargetMachine::whichMathCallReplacesIntrinsic(Function& >>>>>> intrinsic) >>>>>> >>>>>> > I wou...

...s very well with C and Fortran, but in order to make >>>>>>> accurate replacements of unsupported intrinsics calls, it needs to become >>>>>>> aware of NVPTX backend capabilities in the form of: >>>>>>> >>>>>>> bool NVPTXTargetMachine::**** >>>>>>> >>>>>>> isIntrinsicSupported(Function& intrinsic) and >>>>>>> string NVPTXTargetMachine::whichMathCallReplacesIntrinsic(Function& >>>>>>> intrinsic) >>>>>>> >>>&gt...

...ntext to match the immediate IR > version? In fact, lli isn't calling *LowerToBT* so it isn't matching. But > isn't this really a *peephole optimization* issue? > > LLVM has a generic peephole optimizer, *CodeGen/PeepholeOptimizer.cpp *which has > exactly one subclass in *NVPTXTargetMachine.cpp.* > > But isn't it better to deal with X86 *LowerToBT* in a *PeepholeOptimizer* subclass > where you have a small window of instructions rather than during pseudo > instruction expansion where you have really one instruction? > *PeepholeOptimizer *doesn't seem to be getti...

Are you sure you are initializing your pass properly? Can you show a stripped down version of your pass? On Fri, Jun 21, 2013 at 7:27 AM, Anthony Yu <swpenim at gmail.com> wrote: > Hello, > > I want to write a modulePass in addPreEmitPass() for NVPTX, but I > encounter an assertion failed when executing clang. > > Here is my error message. > ==== > Pass 'NVPTX

...egen is > also relatively limited. > > This is in no particular order: > > * Is there any reason why the 32-bit arch name is nvptx and the 64-bit arch > name is nvptx64, especially as the default for the NVCC compiler is to pass > the -m64 flag? Also, all the internal naming (NVPTXTargetMachine for > example) use 32 / 64 suffixes. As far as I know, there is no fundamental reason for this. If it bugs you too much, I'm sure we could change it. :) > > * The register naming seems a little arbitrary as well, using FL prefixes for 64- > bit float and da prefixes for 64-bit f...

...backends, plus my knowledge of tablegen is also relatively limited. This is in no particular order: * Is there any reason why the 32-bit arch name is nvptx and the 64-bit arch name is nvptx64, especially as the default for the NVCC compiler is to pass the -m64 flag? Also, all the internal naming (NVPTXTargetMachine for example) use 32 / 64 suffixes. </pre> </blockquote> <pre wrap=""><!----> As far as I know, there is no fundamental reason for this. If it bugs you too much, I'm sure we could change it. :) </pre> <blockquote type="cite">...

I write my pass in a mix way of NVPTXAllocaHoisting, NVPTXSplitBBatBar and transforms/Hello. The following is part of the codes: in NVPTXTargetMachine.cpp bool NVPTXPassConfig::addPreEmitPass() { addPass(createTest()); return false; } in NVPTXTest.h namespace llvm{ class NVPTXTest : public ModulePass { void getAna...

Hello, I want to write a modulePass in addPreEmitPass() for NVPTX, but I encounter an assertion failed when executing clang. Here is my error message. ==== Pass 'NVPTX Assembly Printer' is not initialized. Verify if there is a pass dependency cycle. Required Passes: llc: /home/pyyu/local/llvm/lib/IR/PassManager.cpp:637: void llvm::PMTopLevelManager::schedulePass(llvm::Pass*): Assertion

...xt to match the immediate IR version? In fact, lli isn't calling LowerToBT so it isn't matching. But isn't this really a peephole optimization issue? >>>> >>>> LLVM has a generic peephole optimizer, CodeGen/PeepholeOptimizer.cpp which has exactly one subclass in NVPTXTargetMachine.cpp. >>>> >>>> But isn't it better to deal with X86 LowerToBT in a PeepholeOptimizer subclass where you have a small window of instructions rather than during pseudo instruction expansion where you have really one instruction? PeepholeOptimizer doesn't seem to be ge...

...is also relatively limited.<br> <br> This is in no particular order:<br> <br> * Is there any reason why the 32-bit arch name is nvptx and the 64-bit arch name is nvptx64, especially as the default for the NVCC compiler is to pass the -m64 flag? Also, all the internal naming (NVPTXTargetMachine for example) use 32 / 64 suffixes.<br> <br> * The register naming seems a little arbitrary as well, using FL prefixes for 64-bit float and da prefixes for 64-bit float arguments for example. <br> <br> * Something I picked up in the NVVM IR spec - it seems to only be possible...

Thanks for the feedback! The attached patch addresses the style issues that have been found. From: Jim Grosbach [mailto:grosbach at apple.com] Sent: Wednesday, April 25, 2012 2:22 PM To: Justin Holewinski Cc: llvm-commits at cs.uiuc.edu; llvmdev at cs.uiuc.edu; Vinod Grover Subject: Re: [llvm-commits] [PATCH][RFC] NVPTX Backend Hi Justin, Cool stuff, to be sure. Excited to see this. As a