nir: Initialize source as a NULL SSA def
authorAlyssa Rosenzweig <alyssa@rosenzweig.io>
Thu, 3 Aug 2023 19:15:49 +0000 (15:15 -0400)
committerMarge Bot <emma+marge@anholt.net>
Thu, 3 Aug 2023 22:40:29 +0000 (22:40 +0000)
commitd18dfe6e27f88afbdcaae7f148ae8f025c8c78d1
tree3b3b81dbff1996e0b7d3c3f3d709432a9afdc918
parentfb79497b4443dd595bba29e4b408b8adc8ac892c
nir: Initialize source as a NULL SSA def

This keeps src_is_valid working without depending on registers.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Reviewed-by: Faith Ekstrand <faith.ekstrand@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24432>
src/compiler/nir/nir.c