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intel/nir: Call nir_lower_io_to_scalar_early 

Shader-db results on Kaby Lake:

    total instructions in shared programs: 15166953 -> 15073611 (-0.62%)
    instructions in affected programs: 2390284 -> 2296942 (-3.91%)
    helped: 16469
    HURT: 505

    total loops in shared programs: 4954 -> 4951 (-0.06%)
    loops in affected programs: 3 -> 0
    helped: 3
    HURT: 0

Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
This commit is contained in:
Jason Ekstrand 2018-07-31 06:16:34 -07:00
parent b0bb547f78
commit 4434591bf5
1 changed files with 12 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
src/intel/compiler/brw_nir.c
View File

@ -713,6 +713,18 @@ brw_nir_link_shaders(const struct brw_compiler *compiler,
nir_validate_shader(*producer);
nir_validate_shader(*consumer);
const bool p_is_scalar =
compiler->scalar_stage[(*producer)->info.stage];
const bool c_is_scalar =
compiler->scalar_stage[(*consumer)->info.stage];
if (p_is_scalar && c_is_scalar) {
NIR_PASS_V(*producer, nir_lower_io_to_scalar_early, nir_var_shader_out);
NIR_PASS_V(*consumer, nir_lower_io_to_scalar_early, nir_var_shader_in);
*producer = brw_nir_optimize(*producer, compiler, p_is_scalar);
*consumer = brw_nir_optimize(*consumer, compiler, c_is_scalar);
}
NIR_PASS_V(*producer, nir_remove_dead_variables, nir_var_shader_out);
NIR_PASS_V(*consumer, nir_remove_dead_variables, nir_var_shader_in);
@ -729,12 +741,7 @@ brw_nir_link_shaders(const struct brw_compiler *compiler,
NIR_PASS_V(*consumer, nir_lower_indirect_derefs,
brw_nir_no_indirect_mask(compiler, (*consumer)->info.stage));
const bool p_is_scalar =
compiler->scalar_stage[(*producer)->info.stage];
*producer = brw_nir_optimize(*producer, compiler, p_is_scalar);
const bool c_is_scalar =
compiler->scalar_stage[(*consumer)->info.stage];
*consumer = brw_nir_optimize(*consumer, compiler, c_is_scalar);
}
}