[Mesa-dev] [PATCH 3/8] i965: enable varying array splitting

[Timothy Arceri]

total instructions in shared programs: 13210579 -> 13199325 (-0.09%)
instructions in affected programs: 89043 -> 77789 (-12.64%)
helped: 430
HURT: 0

total cycles in shared programs: 539530190 -> 539493750 (-0.01%)
cycles in affected programs: 584860 -> 548420 (-6.23%)
helped: 437
HURT: 110

total spills in shared programs: 86646 -> 86640 (-0.01%)
spills in affected programs: 6 -> 0
helped: 1
HURT: 0

total fills in shared programs: 90955 -> 90946 (-0.01%)
fills in affected programs: 9 -> 0
helped: 1
HURT: 0
---
 src/intel/compiler/brw_nir.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/intel/compiler/brw_nir.c b/src/intel/compiler/brw_nir.c
index 8f3f77f89a..26d17d8f0c 100644
--- a/src/intel/compiler/brw_nir.c
+++ b/src/intel/compiler/brw_nir.c
@@ -672,20 +672,22 @@ brw_preprocess_nir(const struct brw_compiler *compiler, nir_shader *nir)
 
    OPT(nir_remove_dead_variables, nir_var_local);
 
    return nir;
 }
 
 void
 brw_nir_link_shaders(const struct brw_compiler *compiler,
                      nir_shader **producer, nir_shader **consumer)
 {
+   nir_lower_io_arrays_to_elements(*producer, *consumer);
+
    NIR_PASS_V(*producer, nir_remove_dead_variables, nir_var_shader_out);
    NIR_PASS_V(*consumer, nir_remove_dead_variables, nir_var_shader_in);
 
    if (nir_remove_unused_varyings(*producer, *consumer)) {
       NIR_PASS_V(*producer, nir_lower_global_vars_to_local);
       NIR_PASS_V(*consumer, nir_lower_global_vars_to_local);
 
       /* The backend might not be able to handle indirects on
        * temporaries so we need to lower indirects on any of the
        * varyings we have demoted here.
-- 
2.14.3