Displaying 2 results from an estimated 2 matches for "getdecalaration".
2015 Apr 18
2
[LLVMdev] how can I create an SSE instrinsics sqrt?
Thanks, Shahid. It is fixed now.
On Fri, Apr 17, 2015 at 8:50 PM, Shahid, Asghar-ahmad <
Asghar-ahmad.Shahid at amd.com> wrote:
> Hi zhi,
>
>
>
> You have to also pass the value type to getDecalaration() API such as
>
>
>
> Value* sqrtv = Intrinsic::getDeclaration(M, Intrinsic::x86_sse2_sqrt_pd,
> v->getType());
>
>
>
> Regards,
>
> Shahid
>
>
>
> *From:* llvmdev-bounces at cs.uiuc.edu [mailto:llvmdev-bounces at cs.uiuc.edu] *On
> Behalf Of *zhi...
2015 Apr 18
2
[LLVMdev] how can I create an SSE instrinsics sqrt?
I want to create a vector version sqrt as the following.
Value *Approx::CreateFSqrt(IRBuilder<> &builder, Value *v, const char*
Name) {
Type *tys[] = {v->getType()};
Module* M = currF->getParent();
Value* sqrtv = Intrinsic::getDeclaration(M, Intrinsic::x86_sse2_sqrt_pd);
CallInst *CI = builder.CreateCall(sqrtv, v, Name);
return CI;
}
Here is Value *v is <2 x