One program affected:
instructions in affected programs: 246 -> 244 (-0.81%)
---
src/mesa/drivers/dri/i965/brw_fs_dead_code_eliminate.cpp | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/src/mesa/drivers/dri/i965/brw_fs_dead_code_eliminate.cpp
b/src/mesa/drivers/dri/i965/brw_fs_dead_code_eliminate.cpp
index 6addbb3..1ae7606 100644
--- a/src/mesa/drivers/dri/i965/brw_fs_dead_code_eliminate.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs_dead_code_eliminate.cpp
@@ -80,6 +80,13 @@ fs_visitor::dead_code_eliminate()
}
}
+ if (inst->dst.file == GRF) {
+ if (!inst->is_partial_write()) {
+ int var = live_intervals->var_from_reg(&inst->dst);
+ BITSET_CLEAR(live, var);
+ }
+ }
+
for (int i = 0; i < 3; i++) {
if (inst->src[i].file == GRF) {
int var = live_intervals->var_from_vgrf[inst->src[i].reg];
--
1.8.3.2
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