search for: intrinsicsptx

It is my understanding that all you need to do is specify let isTarget = 1 in your .td file and it will generate target specific intrinsics. This should allow you to keep the IntrinsicsPTX.td file in the same location. Micah From: Justin Holewinski [mailto:justin.holewinski at gmail.com] Sent: Monday, December 05, 2011 6:13 AM To: Alberto Magni Cc: Villmow, Micah; LLVM Developers Mailing List Subject: Re: [LLVMdev] PTX builtin functions. On Sun, Dec 4, 2011 at 1:10 PM, Alberto Mag...

On Thu, Dec 8, 2011 at 11:36 AM, Villmow, Micah <Micah.Villmow at amd.com>wrote: > It is my understanding that all you need to do is specify let isTarget = > 1 in your .td file and it will generate target specific intrinsics. This > should allow you to keep the IntrinsicsPTX.td file in the same location. > So we keep the intrinsics defined in include/llvm/IntrinsicsPTX.td? How do we then get at the generated files in the PTXIntrinsicInfo class in the back-end? What exactly does isTarget do? It seems to remove a lot of the intrinsic information in the Intrinsics....

On Sun, Dec 4, 2011 at 1:10 PM, Alberto Magni <alberto.magni86 at gmail.com>wrote: > Hi Justin, > > sorry for the delay, I have been busy. > > Micah's proposal requires to move the definitions of the intrinsics > from include/llvm/IntrinsicsPTX.td to lib/Target/PTX/PTXIntrinsics.td > thus allowing the generation of the file PTXGenIntrinsics.inc which > will be included by PTXIntrinsicInfo.cpp. > This is a quite big modification, do you agree with this ? > Or do you have a better solution. > I'm opposed to this, mainly...

Hi Justin, sorry for the delay, I have been busy. Micah's proposal requires to move the definitions of the intrinsics from include/llvm/IntrinsicsPTX.td to lib/Target/PTX/PTXIntrinsics.td thus allowing the generation of the file PTXGenIntrinsics.inc which will be included by PTXIntrinsicInfo.cpp. This is a quite big modification, do you agree with this ? Or do you have a better solution. Also I don't know yet how to make llvm recognize the...

Dear Justin, I am trying to add the support for some OpenCL builtin functions to the PTX backend. The attached file represent the first stub of a patch for the fmax builtin function. The test case I am trying is the following: define ptx_device float @f(float %x, float %y) { entry: %z = call float @fmax(float %x, float %y) ret float %z } declare float @fmax(float, float) But at the moment

...to implement it as an intrinsic in the back-end. Second, intrinsic functions require a bit more work. You're off to a great start, but intrinsics are implemented a bit differently. It looks like LLVM does not have a max intrinsic, so we'll need to create one. Have a look at include/llvm/IntrinsicsPTX.td. This file defines the PTX-specific intrinsics. You can add an intrinsic for max here, and then implement a pattern-match in the PTXInstrInfo.td file. There is no need to create a new SDNode type for intrinsics, unless they require some special handling in the C++ code, which I do not see bei...

...sic functions require a bit more work. You're off to a > >>> great start, but intrinsics are implemented a bit differently. It > looks > >>> like LLVM does not have a max intrinsic, so we'll need to create one. > Have > >>> a look at include/llvm/IntrinsicsPTX.td. This file defines the > PTX-specific > >>> intrinsics. You can add an intrinsic for max here, and then implement > a > >>> pattern-match in the PTXInstrInfo.td file. There is no need to create > a new > >>> SDNode type for intrinsics, unless they...

...;> >> >>> like LLVM does not have a max intrinsic, so we'll need to > > >> create > > >> >> >> >>> one. > > >> >> >> >>> Have > > >> >> >> >>> a look at include/llvm/IntrinsicsPTX.td. This file defines > > >> the > > >> >> >> >>> PTX-specific > > >> >> >> >>> intrinsics. You can add an intrinsic for max here, and then > > >> >> >> >>> implement > > >>...

...ks > >> >> >> >>> like LLVM does not have a max intrinsic, so we'll need to > >> create > >> >> >> >>> one. > >> >> >> >>> Have > >> >> >> >>> a look at include/llvm/IntrinsicsPTX.td. This file defines > >> the > >> >> >> >>> PTX-specific > >> >> >> >>> intrinsics. You can add an intrinsic for max here, and then > >> >> >> >>> implement > >> >> >> >&gt...

...9;re off to a >> >>> great start, but intrinsics are implemented a bit differently.  It >> >>> looks >> >>> like LLVM does not have a max intrinsic, so we'll need to create one. >> >>>  Have >> >>> a look at include/llvm/IntrinsicsPTX.td.  This file defines the >> >>> PTX-specific >> >>> intrinsics.  You can add an intrinsic for max here, and then implement >> >>> a >> >>> pattern-match in the PTXInstrInfo.td file.  There is no need to create >> >>> a new...

...t;>> great start, but intrinsics are implemented a bit differently. It > >> >>> looks > >> >>> like LLVM does not have a max intrinsic, so we'll need to create > one. > >> >>> Have > >> >>> a look at include/llvm/IntrinsicsPTX.td. This file defines the > >> >>> PTX-specific > >> >>> intrinsics. You can add an intrinsic for max here, and then > implement > >> >>> a > >> >>> pattern-match in the PTXInstrInfo.td file. There is no need to > crea...

...implemented a bit differently.  It >> >> >>> looks >> >> >>> like LLVM does not have a max intrinsic, so we'll need to create >> >> >>> one. >> >> >>>  Have >> >> >>> a look at include/llvm/IntrinsicsPTX.td.  This file defines the >> >> >>> PTX-specific >> >> >>> intrinsics.  You can add an intrinsic for max here, and then >> >> >>> implement >> >> >>> a >> >> >>> pattern-match in the PTXInstrIn...

....  It > >> >> >>> looks > >> >> >>> like LLVM does not have a max intrinsic, so we'll need to > create > >> >> >>> one. > >> >> >>>  Have > >> >> >>> a look at include/llvm/IntrinsicsPTX.td.  This file defines > the > >> >> >>> PTX-specific > >> >> >>> intrinsics.  You can add an intrinsic for max here, and then > >> >> >>> implement > >> >> >>> a > >> >> >>> p...

...>> >>> looks >> >> >> >>> like LLVM does not have a max intrinsic, so we'll need to >> create >> >> >> >>> one. >> >> >> >>>  Have >> >> >> >>> a look at include/llvm/IntrinsicsPTX.td.  This file defines >> the >> >> >> >>> PTX-specific >> >> >> >>> intrinsics.  You can add an intrinsic for max here, and then >> >> >> >>> implement >> >> >> >>> a >> >>...