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-rw-r--r--src/gallium/drivers/r600/sb/sb_dce_cleanup.cpp3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/gallium/drivers/r600/sb/sb_dce_cleanup.cpp b/src/gallium/drivers/r600/sb/sb_dce_cleanup.cpp
index acd6613166f..f879395f67c 100644
--- a/src/gallium/drivers/r600/sb/sb_dce_cleanup.cpp
+++ b/src/gallium/drivers/r600/sb/sb_dce_cleanup.cpp
@@ -125,6 +125,9 @@ void dce_cleanup::cleanup_dst_vec(vvec& vv) {
if (!v)
continue;
+ if (v->gvn_source && v->gvn_source->is_dead())
+ v->gvn_source = NULL;
+
if (v->is_dead())
v = NULL;
}