From: Glenn Kennard <glenn.kennard@gmail.com>
Date: Wed, 8 Apr 2015 09:30:37 +0000 (+0200)
Subject: r600g/sb: Skip empty ALU clause while scheduling
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=17d69862a9232e2bcdfa032c5a65c27557dd9275;p=mesa.git

r600g/sb: Skip empty ALU clause while scheduling

Fixes assert triggered by
ext_transform_feedback-intervening-read output use_gs
piglit test.

Signed-off-by: Glenn Kennard <glenn.kennard@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---

diff --git a/src/gallium/drivers/r600/sb/sb_sched.cpp b/src/gallium/drivers/r600/sb/sb_sched.cpp
index 4248a3fd30a..2e38a62c05a 100644
--- a/src/gallium/drivers/r600/sb/sb_sched.cpp
+++ b/src/gallium/drivers/r600/sb/sb_sched.cpp
@@ -825,6 +825,9 @@ void post_scheduler::init_regmap() {
 
 void post_scheduler::process_alu(container_node *c) {
 
+	if (c->empty())
+		return;
+
 	ucm.clear();
 	alu.reset();