From: Vadim Girlin <vadimgirlin@gmail.com>
Date: Thu, 2 May 2013 03:53:00 +0000 (+0400)
Subject: r600g/sb: fix handling of interference sets in post_scheduler
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=c49b6d7f27319c423ab06ab62be46ee9628f5986;p=mesa.git

r600g/sb: fix handling of interference sets in post_scheduler

post_scheduler clears interference set for reallocatable values when
the value becomes live first time, and then updates it to take into
account modified order of operations, but this was not handled properly
if the value appears first time as a source in copy operation.

Fixes issues with webgl demo: http://madebyevan.com/webgl-water/

Signed-off-by: Vadim Girlin <vadimgirlin@gmail.com>
---

diff --git a/src/gallium/drivers/r600/sb/sb_sched.cpp b/src/gallium/drivers/r600/sb/sb_sched.cpp
index 7e9eaccfcd3..d7c17952a4a 100644
--- a/src/gallium/drivers/r600/sb/sb_sched.cpp
+++ b/src/gallium/drivers/r600/sb/sb_sched.cpp
@@ -874,7 +874,7 @@ void post_scheduler::update_local_interferences() {
 	}
 }
 
-void post_scheduler::update_live_src_vec(vvec &vv, val_set &born, bool src) {
+void post_scheduler::update_live_src_vec(vvec &vv, val_set *born, bool src) {
 	for (vvec::iterator I = vv.begin(), E = vv.end(); I != E; ++I) {
 		value *v = *I;
 
@@ -892,7 +892,8 @@ void post_scheduler::update_live_src_vec(vvec &vv, val_set &born, bool src) {
 						cleared_interf.add_val(v);
 					}
 				}
-				born.add_val(v);
+				if (born)
+					born->add_val(v);
 			}
 		} else if (v->is_rel()) {
 			if (!v->rel->is_any_gpr())
@@ -924,7 +925,7 @@ void post_scheduler::update_live_dst_vec(vvec &vv) {
 	}
 }
 
-void post_scheduler::update_live(node *n, val_set &born) {
+void post_scheduler::update_live(node *n, val_set *born) {
 	update_live_dst_vec(n->dst);
 	update_live_src_vec(n->src, born, true);
 	update_live_src_vec(n->dst, born, false);
@@ -948,7 +949,7 @@ void post_scheduler::process_group() {
 		if (!n)
 			continue;
 
-		update_live(n, vals_born);
+		update_live(n, &vals_born);
 	}
 
 	PSC_DUMP(
@@ -1550,8 +1551,7 @@ bool post_scheduler::check_copy(node *n) {
 		if (s->is_prealloc() && !map_src_val(s))
 			return true;
 
-		live.remove_val(d);
-		live.add_val(s);
+		update_live(n, NULL);
 
 		release_src_values(n);
 		n->remove();
diff --git a/src/gallium/drivers/r600/sb/sb_sched.h b/src/gallium/drivers/r600/sb/sb_sched.h
index e74046c9c5a..a74484f50b3 100644
--- a/src/gallium/drivers/r600/sb/sb_sched.h
+++ b/src/gallium/drivers/r600/sb/sb_sched.h
@@ -297,9 +297,9 @@ public:
 	bool recolor_local(value *v);
 
 	void update_local_interferences();
-	void update_live_src_vec(vvec &vv, val_set &born, bool src);
+	void update_live_src_vec(vvec &vv, val_set *born, bool src);
 	void update_live_dst_vec(vvec &vv);
-	void update_live(node *n, val_set &born);
+	void update_live(node *n, val_set *born);
 	void process_group();
 
 	void set_color_local_val(value *v, sel_chan color);