[Bug target/84952] [nvptx] bar.sync generated in divergent code

[vries at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84952

--- Comment #2 from Tom de Vries <vries at gcc dot gnu.org> ---
Created attachment 43703
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=43703&action=edit
0001-Fix-branch-around-nothing.patch