Shader-db results on Kaby Lake:
total instructions in shared programs: 15177605 -> 15176765 (<.01%)
instructions in affected programs: 4259 -> 3419 (-19.72%)
helped: 1
HURT: 0
total spills in shared programs: 10954 -> 10855 (-0.90%)
spills in affected programs: 295 -> 196 (-33.56%)
helped: 1
HURT: 0
total fills in shared programs: 22222 -> 22117 (-0.47%)
fills in affected programs: 417 -> 312 (-25.18%)
helped: 1
HURT: 0
The helped shader is from the OglCSDof synmark test. On my Kaby Lake
laptop, the actual framerate of the benchmark didn't appear to improve
beyond the noise.
---
src/intel/compiler/brw_nir.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/src/intel/compiler/brw_nir.c b/src/intel/compiler/brw_nir.c
index 96ad77c3906..5e9da9e1ef2 100644
--- a/src/intel/compiler/brw_nir.c
+++ b/src/intel/compiler/brw_nir.c
@@ -542,6 +542,7 @@ brw_nir_optimize(nir_shader *nir, const struct brw_compiler
*compiler,
do {
progress = false;
OPT(nir_split_array_vars, nir_var_local);
+ OPT(nir_shrink_vec_array_vars, nir_var_local);
OPT(nir_lower_vars_to_ssa);
OPT(nir_opt_copy_prop_vars);
--
2.17.1
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