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broadcom/compiler: Add a constant folding pass after nir_lower_io

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The nir_lower_io pass produces a bunch of constant arithmetic, and
assumes that constant folding will simplify it away.

Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6356>
This commit is contained in:
Arcady Goldmints-Orlov 2020-07-25 10:39:31 -05:00 • committed by Marge Bot
parent bd87cdad18
commit c3258f927c
1 changed files with 4 additions and 1 deletions
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5
src/broadcom/compiler/vir.c
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@ -821,8 +821,11 @@ v3d_nir_lower_vs_early(struct v3d_compile *c)
NIR_PASS_V(c->s, nir_lower_io, nir_var_shader_in | nir_var_shader_out,
type_size_vec4,
(nir_lower_io_options)0);
/* clean up nir_lower_io's deref_var remains */
/* clean up nir_lower_io's deref_var remains and do a constant folding pass
* on the code it generated.
*/
NIR_PASS_V(c->s, nir_opt_dce);
NIR_PASS_V(c->s, nir_opt_constant_folding);
}
static void