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anv/i965: make use of nir_link_constant_varyings() 

shader-db results for SLK:

total instructions in shared programs: 13106498 -> 13091573 (-0.11%)
instructions in affected programs: 1186244 -> 1171319 (-1.26%)
helped: 6186
HURT: 0

total cycles in shared programs: 332062633 -> 331961653 (-0.03%)
cycles in affected programs: 8537165 -> 8436185 (-1.18%)
helped: 5371
HURT: 862

LOST:   6
GAINED: 14

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
This commit is contained in:
Timothy Arceri 2018-11-07 14:29:18 +11:00
parent 621b0fa892
commit 3561108de0
1 changed files with 3 additions and 0 deletions
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3
src/intel/compiler/brw_nir.c
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@ -740,6 +740,9 @@ brw_nir_link_shaders(const struct brw_compiler *compiler,
*consumer = brw_nir_optimize(*consumer, compiler, c_is_scalar, false);
}
if (nir_link_constant_varyings(*producer, *consumer))
*consumer = brw_nir_optimize(*consumer, compiler, c_is_scalar, false);
NIR_PASS_V(*producer, nir_remove_dead_variables, nir_var_shader_out);
NIR_PASS_V(*consumer, nir_remove_dead_variables, nir_var_shader_in);