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authorJason Ekstrand <[email protected]>2018-07-25 22:52:39 -0700
committerJason Ekstrand <[email protected]>2018-08-01 18:02:28 -0700
commitb0bb547f782301199e75dc107ac335faf4eb990c (patch)
tree6e0795924af3755e7275da9f3fc15fcb8e1983d6 /src/intel
parent57804efa885074866e1388191b5f48680c6151da (diff)
intel/nir: Split IO arrays into elements
The NIR nir_lower_io_arrays_to_elements pass attempts to split I/O variables which are arrays or matrices into a sequence of separate variables. This can help link-time optimization by allowing us to remove varyings at a more granular level. Shader-db results on Kaby Lake: total instructions in shared programs: 15177645 -> 15168494 (-0.06%) instructions in affected programs: 79857 -> 70706 (-11.46%) helped: 392 HURT: 0 Reviewed-by: Timothy Arceri <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]>
Diffstat (limited to 'src/intel')
-rw-r--r--src/intel/compiler/brw_nir.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/intel/compiler/brw_nir.c b/src/intel/compiler/brw_nir.c
index 17ccfa48af6..29ad68fdb2a 100644
--- a/src/intel/compiler/brw_nir.c
+++ b/src/intel/compiler/brw_nir.c
@@ -709,6 +709,10 @@ 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_validate_shader(*producer);
+ nir_validate_shader(*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);