[llvm-dev] Query supported llvm intrinsic calls during runtime.

Craig Topper via llvm-dev llvm-dev at lists.llvm.org
Wed Feb 24 11:41:16 PST 2021


That doesn't check for target features being enabled for target specific
intrinsics. I believe Andy's suggestion will just check if the types are
valid.

~Craig


On Wed, Feb 24, 2021 at 11:34 AM Deepak Rajendrakumaran <deepak3 at vt.edu>
wrote:

> Thank you! That looks like it should do the trick assuming it checks for
> both target specific and target independent intrinsics.
>
> Regards,
> Deepak
>
> On Wed, Feb 24, 2021 at 11:29 AM Kaylor, Andrew <andrew.kaylor at intel.com>
> wrote:
>
>> Does Intrinsic::getIntrinsicInfoTableEntries() +
>> Intrinsic::matchIntrinsicSignature() do what you’re looking for?
>>
>>
>>
>> *From:* llvm-dev <llvm-dev-bounces at lists.llvm.org> *On Behalf Of *Deepak
>> Rajendrakumaran via llvm-dev
>> *Sent:* Wednesday, February 24, 2021 11:27 AM
>> *To:* Craig Topper <craig.topper at gmail.com>
>> *Cc:* llvm-dev at lists.llvm.org
>> *Subject:* Re: [llvm-dev] Query supported llvm intrinsic calls during
>> runtime.
>>
>>
>>
>> Both. Target specific intrinsics especially are important but ideally I’d
>> like to be able to query for both. The idea is to enable to directly call
>> any available llvm intrinsic.
>>
>>
>>
>> Regards,
>>
>> Deepak
>>
>>
>>
>> On Wed, Feb 24, 2021 at 11:17 AM Craig Topper <craig.topper at gmail.com>
>> wrote:
>>
>> Are you asking about target independent intrinsics or target specific
>> intrinsics?
>>
>>
>> ~Craig
>>
>>
>>
>>
>>
>> On Wed, Feb 24, 2021 at 11:15 AM Deepak Rajendrakumaran via llvm-dev <
>> llvm-dev at lists.llvm.org> wrote:
>>
>> Hello,
>>
>>
>>
>> I have a frontend which creates LLVM IR and uses LLVM optimizations and
>> codegen. Is there  someway to query LLVM during runtime if a particular
>> intrinsic is supported?
>>
>>
>>
>> For example- during runtime user says call the following intrinsic -
>> ‘llvm.foo(<8 x i64>)’. I’m looking for a way to verify that llvm.foo(<8 x
>> i64>)’. is a valid llvm intrinsic before creating IR/inserting in IR.
>>
>>
>>
>> Regards,
>>
>> Deepak
>>
>> _______________________________________________
>> LLVM Developers mailing list
>> llvm-dev at lists.llvm.org
>> https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev
>>
>
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