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-rw-r--r--src/gallium/drivers/r600/sb/sb_bc_finalize.cpp8
1 files changed, 8 insertions, 0 deletions
diff --git a/src/gallium/drivers/r600/sb/sb_bc_finalize.cpp b/src/gallium/drivers/r600/sb/sb_bc_finalize.cpp
index 8d0be06802c..08b7d77f1a4 100644
--- a/src/gallium/drivers/r600/sb/sb_bc_finalize.cpp
+++ b/src/gallium/drivers/r600/sb/sb_bc_finalize.cpp
@@ -127,6 +127,14 @@ void bc_finalizer::finalize_loop(region_node* r) {
cf_node *loop_start = sh.create_cf(CF_OP_LOOP_START_DX10);
cf_node *loop_end = sh.create_cf(CF_OP_LOOP_END);
+ // Update last_cf, but don't overwrite it if it's outside the current loop nest since
+ // it may point to a cf that is later in program order.
+ // The single parent level check is sufficient since finalize_loop() is processed in
+ // reverse order from innermost to outermost loop nest level.
+ if (!last_cf || last_cf->get_parent_region() == r) {
+ last_cf = loop_end;
+ }
+
loop_start->jump_after(loop_end);
loop_end->jump_after(loop_start);