tree 53baef9bc767e7047b4236a990a8c845dd7efd0e
parent 7ef99f3a40a226fdc6de1d6cf7385ee477948820
author Than McIntosh <thanm@google.com> 1551455669 -0500
committer Than McIntosh <thanm@google.com> 1552571813 +0000

gollvm: annotate fcns with attribute for AutoFDO

When AutoFDO is in effect, annotate functions with a special attribute
to tell the LLVM backend to handle symbol names in a Go-compatible way
(in particular, to not chop off everything after the first "." in the
symbol name when doing profile lookups).

This change depends on the upstream LLVM change at

https://reviews.llvm.org/D58832

Change-Id: If5aedd20040b14fb0dafb6657f3f86c5ad2cb918
Reviewed-on: https://go-review.googlesource.com/c/gollvm/+/164639
Reviewed-by: Cherry Zhang <cherryyz@google.com>