From: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Date: Tue, 24 Mar 2020 14:58:59 +0000 (+0100)
Subject: nir: update uses_demote flag in discard_to_demote pass
X-Git-Url: https://git.libre-soc.org/?p=mesa.git;a=commitdiff_plain;h=84da4ded4b90d0d13e3d89d97160eead9d5c8886

nir: update uses_demote flag in discard_to_demote pass

Otherwise the ctx.ac.postponed_kill will not be allocated.

Fixes: ce87da71e93 ("nir: add pass to lower discard() to demote()")
Closes: https://gitlab.freedesktop.org/mesa/mesa/issues/2662
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4301>
---

diff --git a/src/compiler/nir/nir_lower_discard_to_demote.c b/src/compiler/nir/nir_lower_discard_to_demote.c
index cbb7da9a892..eb13796d952 100644
--- a/src/compiler/nir/nir_lower_discard_to_demote.c
+++ b/src/compiler/nir/nir_lower_discard_to_demote.c
@@ -50,9 +50,11 @@ nir_lower_discard_to_demote(nir_shader *shader)
             switch (intrin->intrinsic) {
             case nir_intrinsic_discard:
                intrin->intrinsic = nir_intrinsic_demote;
+               shader->info.fs.uses_demote = true;
                break;
             case nir_intrinsic_discard_if:
                intrin->intrinsic = nir_intrinsic_demote_if;
+               shader->info.fs.uses_demote = true;
                break;
             case nir_intrinsic_load_helper_invocation:
                intrin->intrinsic = nir_intrinsic_is_helper_invocation;