2274b26dfb
This is actually not necessary and generates a lot of superfluous instructions at every phi (setting the value to zero). Signed-off-by: Timur Kristóf <timur.kristof@gmail.com> Reviewed-by: Rhys Perry <pendingchaos02@gmail.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/18566>