[LLVMdev] RFC: Metadata attachments to function definitions

Diego Novillo dnovillo at google.com
Thu Apr 16 07:40:17 PDT 2015


On Wed, Apr 15, 2015 at 12:33 AM, Duncan P. N. Exon Smith
<dexonsmith at apple.com> wrote:

>  1. For PGO, we need somewhere to attach the function entry count.
>     Attaching to the function definition is a simple solution.
>
>         define void @foo() !prof !0 {
>           unreachable
>         }
>         !0 = !{i32 987}

I've been thinking about ways of storing this information somewhere
and this should be perfect for my needs. Thanks!


Diego.



More information about the llvm-dev mailing list